我是靠谱客的博主 彩色飞鸟，这篇文章主要介绍二进制安装Kubernetes（k8s） v1.24.1 IPv4/IPv6双栈 --- Ubuntu版二进制安装Kubernetes（k8s） v1.24.1 IPv4/IPv6双栈 --- Ubuntu版本介绍1.环境2.k8s基本组件安装3.相关证书生成4.k8s系统组件配置5.高可用配置6.k8s组件配置（区别于第4点）7.TLS Bootstrapping配置8.node节点配置9.安装Calico10.安装CoreDNS11.安装Metrics Server12.集群验证13.安装d，现在分享给大家，希望可以做个参考。
二进制安装Kubernetes（k8s） v1.24.1 IPv4/IPv6双栈 --- Ubuntu版本
Kubernetes 开源不易，帮忙点个star，谢谢了????
介绍
kubernetes二进制安装
后续尽可能第一时间更新新版本文档，更新后内容在GitHub。
本文是使用的是Ubuntu作为基底，其他文档请在GitHub上查看。
1.21.13 和 1.22.10 和 1.23.3 和 1.23.4 和 1.23.5 和 1.23.6 和 1.23.7 和 1.24.0 和1.24.1 文档以及安装包已生成。
我使用IPV6的目的是在公网进行访问，所以我配置了IPV6静态地址。
若您没有IPV6环境，或者不想使用IPv6，不对主机进行配置IPv6地址即可。
不配置IPV6，不影响后续，不过集群依旧是支持IPv6的。为后期留有扩展可能性。
https://github.com/cby-chen/Kubernetes/
手动项目地址：https://github.com/cby-chen/Kubernetes
脚本项目地址：https://github.com/cby-chen/Binary_installation_of_Kubernetes
kubernetes 1.24 变化较大，详细见：https://kubernetes.io/zh/blog/2022/04/07/upcoming-changes-in-kubernetes-1-24/
1.环境
| 主机名称 | IP地址 | 说明 | 软件 |
|---|---|---|---|
| Master01 | 192.168.1.11 | master节点 | kube-apiserver、kube-controller-manager、kube-scheduler、etcd、 kubelet、kube-proxy、nfs-client、haproxy、keepalived |
| Master02 | 192.168.1.12 | master节点 | kube-apiserver、kube-controller-manager、kube-scheduler、etcd、 kubelet、kube-proxy、nfs-client、haproxy、keepalived |
| Master03 | 192.168.1.13 | master节点 | kube-apiserver、kube-controller-manager、kube-scheduler、etcd、 kubelet、kube-proxy、nfs-client、haproxy、keepalived |
| Node01 | 192.168.1.14 | node节点 | kubelet、kube-proxy、nfs-client |
| Node02 | 192.168.1.15 | node节点 | kubelet、kube-proxy、nfs-client |
| 192.168.1.19 | VIP |
| 软件 | 版本 |
|---|---|
| kernel | 5.4.0-86 |
| Ubuntu | 2004 及以上 |
| kube-apiserver、kube-controller-manager、kube-scheduler、kubelet、kube-proxy | v1.24.1 |
| etcd | v3.5.4 |
| containerd | v1.5.11 |
| cfssl | v1.6.1 |
| cni | v1.1.1 |
| crictl | v1.24.2 |
| haproxy | v1.8.27 |
| keepalived | v2.1.5 |
网段
物理主机：10.0.0.0/24
service：10.96.0.0/12
pod：172.16.0.0/12
建议k8s集群与etcd集群分开安装
安装包已经整理好：https://github.com/cby-chen/Kubernetes/releases/download/v1.24.1/kubernetes-v1.24.1.tar
1.1.k8s基础系统环境配置
1.2.配置IP
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16root@hello:~# vim /etc/netplan/00-installer-config.yaml root@hello:~# root@hello:~# cat /etc/netplan/00-installer-config.yaml # This is the network config written by 'subiquity' network: ethernets: ens18: addresses: - 192.168.1.11/24 gateway4: 192.168.1.1 nameservers: addresses: [8.8.8.8] version: 2 root@hello:~# root@hello:~# netplan apply root@hello:~#
1.3.设置主机名
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5hostnamectl set-hostname k8s-master01 hostnamectl set-hostname k8s-master02 hostnamectl set-hostname k8s-master03 hostnamectl set-hostname k8s-node01 hostnamectl set-hostname k8s-node02
1.4.配置apt源
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1sudo sed -i 's/archive.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
1.5.安装一些必备工具
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1apt install wget jq psmisc vim net-tools nfs-kernel-server telnet lvm2 git tar curl -y
1.6.选择性下载需要工具
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401.下载kubernetes1.24.+的二进制包 github二进制包下载地址：https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.24.md wget https://dl.k8s.io/v1.24.1/kubernetes-server-linux-amd64.tar.gz 2.下载etcdctl二进制包 github二进制包下载地址：https://github.com/etcd-io/etcd/releases wget https://github.com/etcd-io/etcd/releases/download/v3.5.4/etcd-v3.5.4-linux-amd64.tar.gz 3.docker-ce二进制包下载地址 二进制包下载地址：https://download.docker.com/linux/static/stable/x86_64/ 这里需要下载20.10.+版本 wget https://download.docker.com/linux/static/stable/x86_64/docker-20.10.14.tgz 4.containerd二进制包下载 github下载地址：https://github.com/containerd/containerd/releases containerd下载时下载带cni插件的二进制包。 wget https://github.com/containerd/containerd/releases/download/v1.6.4/cri-containerd-cni-1.6.4-linux-amd64.tar.gz 5.下载cfssl二进制包 github二进制包下载地址：https://github.com/cloudflare/cfssl/releases wget https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssl_1.6.1_linux_amd64 wget https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssljson_1.6.1_linux_amd64 wget https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssl-certinfo_1.6.1_linux_amd64 6.cni插件下载 github下载地址：https://github.com/containernetworking/plugins/releases wget https://github.com/containernetworking/plugins/releases/download/v1.1.1/cni-plugins-linux-amd64-v1.1.1.tgz 7.crictl客户端二进制下载 github下载：https://github.com/kubernetes-sigs/cri-tools/releases wget https://github.com/kubernetes-sigs/cri-tools/releases/download/v1.24.2/crictl-v1.24.2-linux-amd64.tar.gz
1.7.关闭防火墙
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1systemctl disable --now ufw
1.8.关闭交换分区
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5sed -ri 's/.*swap.*/#&/' /etc/fstab swapoff -a && sysctl -w vm.swappiness=0 cat /etc/fstab # /dev/mapper/centos-swap swap swap defaults 0 0
1.9.进行时间同步 (lb除外)
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39# 服务端 apt install chrony -y cat > /etc/chrony/chrony.conf << EOF pool ntp.aliyun.com iburst driftfile /var/lib/chrony/drift makestep 1.0 3 rtcsync allow 192.168.1.0/24 local stratum 10 keyfile /etc/chrony.keys leapsectz right/UTC logdir /var/log/chrony EOF systemctl restart chronyd systemctl enable chronyd # 客户端 apt install chrony -y vim /etc/chrony/chrony.conf cat /etc/chrony/chrony.conf | grep -v "^#" | grep -v "^$" pool 192.168.1.11 iburst driftfile /var/lib/chrony/drift makestep 1.0 3 rtcsync keyfile /etc/chrony.keys leapsectz right/UTC logdir /var/log/chrony systemctl restart chronyd ; systemctl enable chronyd # 客户端安装一条命令 yum install chrony -y ; sed -i "s#2.centos.pool.ntp.org#192.168.1.11#g" /etc/chrony/chrony.conf ; systemctl restart chronyd ; systemctl enable chronyd #使用客户端进行验证 chronyc sources -v
1.10.配置ulimit
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9ulimit -SHn 65535 cat >> /etc/security/limits.conf <<EOF * soft nofile 655360 * hard nofile 131072 * soft nproc 655350 * hard nproc 655350 * seft memlock unlimited * hard memlock unlimitedd EOF
1.11.配置免密登录
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7apt install -y sshpass ssh-keygen -f /root/.ssh/id_rsa -P '' export IP="192.168.1.11 192.168.1.12 192.168.1.13 192.168.1.14 192.168.1.15" export SSHPASS=123123 for HOST in $IP;do sshpass -e ssh-copy-id -o StrictHostKeyChecking=no $HOST done
1.12.安装ipvsadm (lb除外)
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28apt install ipvsadm ipset sysstat conntrack -y cat >> /etc/modules-load.d/ipvs.conf <<EOF ip_vs ip_vs_rr ip_vs_wrr ip_vs_sh nf_conntrack ip_tables ip_set xt_set ipt_set ipt_rpfilter ipt_REJECT ipip EOF systemctl restart systemd-modules-load.service lsmod | grep -e ip_vs -e nf_conntrack ip_vs_sh 16384 0 ip_vs_wrr 16384 0 ip_vs_rr 16384 0 ip_vs 155648 6 ip_vs_rr,ip_vs_sh,ip_vs_wrr nf_conntrack 139264 1 ip_vs nf_defrag_ipv6 24576 2 nf_conntrack,ip_vs nf_defrag_ipv4 16384 1 nf_conntrack libcrc32c 16384 4 nf_conntrack,btrfs,raid456,ip_vs
1.13.修改内核参数 (lb除外)
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34cat <<EOF > /etc/sysctl.d/k8s.conf net.ipv4.ip_forward = 1 net.bridge.bridge-nf-call-iptables = 1 fs.may_detach_mounts = 1 vm.overcommit_memory=1 vm.panic_on_oom=0 fs.inotify.max_user_watches=89100 fs.file-max=52706963 fs.nr_open=52706963 net.netfilter.nf_conntrack_max=2310720 net.ipv4.tcp_keepalive_time = 600 net.ipv4.tcp_keepalive_probes = 3 net.ipv4.tcp_keepalive_intvl =15 net.ipv4.tcp_max_tw_buckets = 36000 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_max_orphans = 327680 net.ipv4.tcp_orphan_retries = 3 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_max_syn_backlog = 16384 net.ipv4.ip_conntrack_max = 65536 net.ipv4.tcp_max_syn_backlog = 16384 net.ipv4.tcp_timestamps = 0 net.core.somaxconn = 16384 net.ipv6.conf.all.disable_ipv6 = 0 net.ipv6.conf.default.disable_ipv6 = 0 net.ipv6.conf.lo.disable_ipv6 = 0 net.ipv6.conf.all.forwarding = 0 EOF sysctl --system
1.14.所有节点配置hosts本地解析
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11cat > /etc/hosts <<EOF 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.11 k8s-master01 192.168.1.12 k8s-master02 192.168.1.13 k8s-master03 192.168.1.14 k8s-node01 192.168.1.15 k8s-node02 192.168.1.19 lb-vip EOF
2.k8s基本组件安装
2.1.所有k8s节点安装Containerd作为Runtime
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37wget https://github.com/containernetworking/plugins/releases/download/v1.1.1/cni-plugins-linux-amd64-v1.1.1.tgz #创建cni插件所需目录 mkdir -p /etc/cni/net.d /opt/cni/bin #解压cni二进制包 tar xf cni-plugins-linux-amd64-v1.1.1.tgz -C /opt/cni/bin/ wget https://github.com/containerd/containerd/releases/download/v1.6.4/cri-containerd-cni-1.6.4-linux-amd64.tar.gz #解压 tar -C / -xzf cri-containerd-cni-1.6.4-linux-amd64.tar.gz #创建服务启动文件 cat > /etc/systemd/system/containerd.service <<EOF [Unit] Description=containerd container runtime Documentation=https://containerd.io After=network.target local-fs.target [Service] ExecStartPre=-/sbin/modprobe overlay ExecStart=/usr/local/bin/containerd Type=notify Delegate=yes KillMode=process Restart=always RestartSec=5 LimitNPROC=infinity LimitCORE=infinity LimitNOFILE=infinity TasksMax=infinity OOMScoreAdjust=-999 [Install] WantedBy=multi-user.target EOF
2.1.1配置Containerd所需的模块
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4cat <<EOF | sudo tee /etc/modules-load.d/containerd.conf overlay br_netfilter EOF
2.1.2加载模块
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1systemctl restart systemd-modules-load.service
2.1.3配置Containerd所需的内核
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9cat <<EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf net.bridge.bridge-nf-call-iptables = 1 net.ipv4.ip_forward = 1 net.bridge.bridge-nf-call-ip6tables = 1 EOF # 加载内核 sysctl --system
2.1.4创建Containerd的配置文件
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23mkdir -p /etc/containerd containerd config default | tee /etc/containerd/config.toml 修改Containerd的配置文件 sed -i "s#SystemdCgroup = false#SystemdCgroup = true#g" /etc/containerd/config.toml cat /etc/containerd/config.toml | grep SystemdCgroup sed -i "s#k8s.gcr.io#registry.cn-hangzhou.aliyuncs.com/chenby#g" /etc/containerd/config.toml cat /etc/containerd/config.toml | grep sandbox_image # 找到containerd.runtimes.runc.options，在其下加入SystemdCgroup = true [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options] SystemdCgroup = true [plugins."io.containerd.grpc.v1.cri".cni] # 将sandbox_image默认地址改为符合版本地址 sandbox_image = "registry.cn-hangzhou.aliyuncs.com/chenby/pause:3.6"
2.1.5启动并设置为开机启动
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2systemctl daemon-reload systemctl enable --now containerd
2.1.6配置crictl客户端连接的运行时位置
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16wget https://github.com/kubernetes-sigs/cri-tools/releases/download/v1.24.2/crictl-v1.24.2-linux-amd64.tar.gz #解压 tar xf crictl-v1.24.2-linux-amd64.tar.gz -C /usr/bin/ #生成配置文件 cat > /etc/crictl.yaml <<EOF runtime-endpoint: unix:///run/containerd/containerd.sock image-endpoint: unix:///run/containerd/containerd.sock timeout: 10 debug: false EOF #测试 systemctl restart containerd crictl info
2.2.k8s与etcd下载及安装（仅在master01操作）
2.2.1解压k8s安装包
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15# 下载安装包 wget https://dl.k8s.io/v1.24.1/kubernetes-server-linux-amd64.tar.gz wget https://github.com/etcd-io/etcd/releases/download/v3.5.4/etcd-v3.5.4-linux-amd64.tar.gz # 解压k8s安装文件 cd cby tar -xf kubernetes-server-linux-amd64.tar.gz --strip-components=3 -C /usr/local/bin kubernetes/server/bin/kube{let,ctl,-apiserver,-controller-manager,-scheduler,-proxy} # 解压etcd安装文件 tar -xf etcd-v3.5.4-linux-amd64.tar.gz --strip-components=1 -C /usr/local/bin etcd-v3.5.4-linux-amd64/etcd{,ctl} # 查看/usr/local/bin下内容 ls /usr/local/bin/ etcd etcdctl kube-apiserver kube-controller-manager kubectl kubelet kube-proxy kube-scheduler
2.2.2查看版本
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6[root@k8s-master01 ~]# kubelet --version Kubernetes v1.24.1 [root@k8s-master01 ~]# etcdctl version etcdctl version: 3.5.4 API version: 3.5 [root@k8s-master01 ~]#
2.2.3将组件发送至其他k8s节点
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8Master='k8s-master02 k8s-master03' Work='k8s-node01 k8s-node02' for NODE in $Master; do echo $NODE; scp /usr/local/bin/kube{let,ctl,-apiserver,-controller-manager,-scheduler,-proxy} $NODE:/usr/local/bin/; scp /usr/local/bin/etcd* $NODE:/usr/local/bin/; done for NODE in $Work; do scp /usr/local/bin/kube{let,-proxy} $NODE:/usr/local/bin/ ; done mkdir -p /opt/cni/bin
2.3创建证书相关文件
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734mkdir pki cd pki cat > admin-csr.json << EOF { "CN": "admin", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "ST": "Beijing", "L": "Beijing", "O": "system:masters", "OU": "Kubernetes-manual" } ] } EOF cat > ca-config.json << EOF { "signing": { "default": { "expiry": "876000h" }, "profiles": { "kubernetes": { "usages": [ "signing", "key encipherment", "server auth", "client auth" ], "expiry": "876000h" } } } } EOF cat > etcd-ca-csr.json << EOF { "CN": "etcd", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "ST": "Beijing", "L": "Beijing", "O": "etcd", "OU": "Etcd Security" } ], "ca": { "expiry": "876000h" } } EOF cat > front-proxy-ca-csr.json << EOF { "CN": "kubernetes", "key": { "algo": "rsa", "size": 2048 }, "ca": { "expiry": "876000h" } } EOF cat > kubelet-csr.json << EOF { "CN": "system:node:$NODE", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "L": "Beijing", "ST": "Beijing", "O": "system:nodes", "OU": "Kubernetes-manual" } ] } EOF cat > manager-csr.json << EOF { "CN": "system:kube-controller-manager", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "ST": "Beijing", "L": "Beijing", "O": "system:kube-controller-manager", "OU": "Kubernetes-manual" } ] } EOF cat > apiserver-csr.json << EOF { "CN": "kube-apiserver", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "ST": "Beijing", "L": "Beijing", "O": "Kubernetes", "OU": "Kubernetes-manual" } ] } EOF cat > ca-csr.json << EOF { "CN": "kubernetes", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "ST": "Beijing", "L": "Beijing", "O": "Kubernetes", "OU": "Kubernetes-manual" } ], "ca": { "expiry": "876000h" } } EOF cat > etcd-csr.json << EOF { "CN": "etcd", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "ST": "Beijing", "L": "Beijing", "O": "etcd", "OU": "Etcd Security" } ] } EOF cat > front-proxy-client-csr.json << EOF { "CN": "front-proxy-client", "key": { "algo": "rsa", "size": 2048 } } EOF cat > kube-proxy-csr.json << EOF { "CN": "system:kube-proxy", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "ST": "Beijing", "L": "Beijing", "O": "system:kube-proxy", "OU": "Kubernetes-manual" } ] } EOF cat > scheduler-csr.json << EOF { "CN": "system:kube-scheduler", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "ST": "Beijing", "L": "Beijing", "O": "system:kube-scheduler", "OU": "Kubernetes-manual" } ] } EOF cd .. mkdir bootstrap cd bootstrap cat > bootstrap.secret.yaml << EOF apiVersion: v1 kind: Secret metadata: name: bootstrap-token-c8ad9c namespace: kube-system type: bootstrap.kubernetes.io/token stringData: description: "The default bootstrap token generated by 'kubelet '." token-id: c8ad9c token-secret: 2e4d610cf3e7426e usage-bootstrap-authentication: "true" usage-bootstrap-signing: "true" auth-extra-groups: system:bootstrappers:default-node-token,system:bootstrappers:worker,system:bootstrappers:ingress --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: name: kubelet-bootstrap roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: system:node-bootstrapper subjects: - apiGroup: rbac.authorization.k8s.io kind: Group name: system:bootstrappers:default-node-token --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: name: node-autoapprove-bootstrap roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: system:certificates.k8s.io:certificatesigningrequests:nodeclient subjects: - apiGroup: rbac.authorization.k8s.io kind: Group name: system:bootstrappers:default-node-token --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: name: node-autoapprove-certificate-rotation roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: system:certificates.k8s.io:certificatesigningrequests:selfnodeclient subjects: - apiGroup: rbac.authorization.k8s.io kind: Group name: system:nodes --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: annotations: rbac.authorization.kubernetes.io/autoupdate: "true" labels: kubernetes.io/bootstrapping: rbac-defaults name: system:kube-apiserver-to-kubelet rules: - apiGroups: - "" resources: - nodes/proxy - nodes/stats - nodes/log - nodes/spec - nodes/metrics verbs: - "*" --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: name: system:kube-apiserver namespace: "" roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: system:kube-apiserver-to-kubelet subjects: - apiGroup: rbac.authorization.k8s.io kind: User name: kube-apiserver EOF cd .. mkdir coredns cd coredns cat > coredns.yaml << EOF apiVersion: v1 kind: ServiceAccount metadata: name: coredns namespace: kube-system --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: labels: kubernetes.io/bootstrapping: rbac-defaults name: system:coredns rules: - apiGroups: - "" resources: - endpoints - services - pods - namespaces verbs: - list - watch - apiGroups: - discovery.k8s.io resources: - endpointslices verbs: - list - watch --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: annotations: rbac.authorization.kubernetes.io/autoupdate: "true" labels: kubernetes.io/bootstrapping: rbac-defaults name: system:coredns roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: system:coredns subjects: - kind: ServiceAccount name: coredns namespace: kube-system --- apiVersion: v1 kind: ConfigMap metadata: name: coredns namespace: kube-system data: Corefile: | .:53 { errors health { lameduck 5s } ready kubernetes cluster.local in-addr.arpa ip6.arpa { fallthrough in-addr.arpa ip6.arpa } prometheus :9153 forward . /etc/resolv.conf { max_concurrent 1000 } cache 30 loop reload loadbalance } --- apiVersion: apps/v1 kind: Deployment metadata: name: coredns namespace: kube-system labels: k8s-app: kube-dns kubernetes.io/name: "CoreDNS" spec: # replicas: not specified here: # 1. Default is 1. # 2. Will be tuned in real time if DNS horizontal auto-scaling is turned on. strategy: type: RollingUpdate rollingUpdate: maxUnavailable: 1 selector: matchLabels: k8s-app: kube-dns template: metadata: labels: k8s-app: kube-dns spec: priorityClassName: system-cluster-critical serviceAccountName: coredns tolerations: - key: "CriticalAddonsOnly" operator: "Exists" nodeSelector: kubernetes.io/os: linux affinity: podAntiAffinity: preferredDuringSchedulingIgnoredDuringExecution: - weight: 100 podAffinityTerm: labelSelector: matchExpressions: - key: k8s-app operator: In values: ["kube-dns"] topologyKey: kubernetes.io/hostname containers: - name: coredns image: registry.cn-beijing.aliyuncs.com/dotbalo/coredns:1.8.6 imagePullPolicy: IfNotPresent resources: limits: memory: 170Mi requests: cpu: 100m memory: 70Mi args: [ "-conf", "/etc/coredns/Corefile" ] volumeMounts: - name: config-volume mountPath: /etc/coredns readOnly: true ports: - containerPort: 53 name: dns protocol: UDP - containerPort: 53 name: dns-tcp protocol: TCP - containerPort: 9153 name: metrics protocol: TCP securityContext: allowPrivilegeEscalation: false capabilities: add: - NET_BIND_SERVICE drop: - all readOnlyRootFilesystem: true livenessProbe: httpGet: path: /health port: 8080 scheme: HTTP initialDelaySeconds: 60 timeoutSeconds: 5 successThreshold: 1 failureThreshold: 5 readinessProbe: httpGet: path: /ready port: 8181 scheme: HTTP dnsPolicy: Default volumes: - name: config-volume configMap: name: coredns items: - key: Corefile path: Corefile --- apiVersion: v1 kind: Service metadata: name: kube-dns namespace: kube-system annotations: prometheus.io/port: "9153" prometheus.io/scrape: "true" labels: k8s-app: kube-dns kubernetes.io/cluster-service: "true" kubernetes.io/name: "CoreDNS" spec: selector: k8s-app: kube-dns clusterIP: 10.96.0.10 ports: - name: dns port: 53 protocol: UDP - name: dns-tcp port: 53 protocol: TCP - name: metrics port: 9153 protocol: TCP EOF cd .. mkdir metrics-server cd metrics-server cat > metrics-server.yaml << EOF apiVersion: v1 kind: ServiceAccount metadata: labels: k8s-app: metrics-server name: metrics-server namespace: kube-system --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: labels: k8s-app: metrics-server rbac.authorization.k8s.io/aggregate-to-admin: "true" rbac.authorization.k8s.io/aggregate-to-edit: "true" rbac.authorization.k8s.io/aggregate-to-view: "true" name: system:aggregated-metrics-reader rules: - apiGroups: - metrics.k8s.io resources: - pods - nodes verbs: - get - list - watch --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: labels: k8s-app: metrics-server name: system:metrics-server rules: - apiGroups: - "" resources: - pods - nodes - nodes/stats - namespaces - configmaps verbs: - get - list - watch --- apiVersion: rbac.authorization.k8s.io/v1 kind: RoleBinding metadata: labels: k8s-app: metrics-server name: metrics-server-auth-reader namespace: kube-system roleRef: apiGroup: rbac.authorization.k8s.io kind: Role name: extension-apiserver-authentication-reader subjects: - kind: ServiceAccount name: metrics-server namespace: kube-system --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: labels: k8s-app: metrics-server name: metrics-server:system:auth-delegator roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: system:auth-delegator subjects: - kind: ServiceAccount name: metrics-server namespace: kube-system --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: labels: k8s-app: metrics-server name: system:metrics-server roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: system:metrics-server subjects: - kind: ServiceAccount name: metrics-server namespace: kube-system --- apiVersion: v1 kind: Service metadata: labels: k8s-app: metrics-server name: metrics-server namespace: kube-system spec: ports: - name: https port: 443 protocol: TCP targetPort: https selector: k8s-app: metrics-server --- apiVersion: apps/v1 kind: Deployment metadata: labels: k8s-app: metrics-server name: metrics-server namespace: kube-system spec: selector: matchLabels: k8s-app: metrics-server strategy: rollingUpdate: maxUnavailable: 0 template: metadata: labels: k8s-app: metrics-server spec: containers: - args: - --cert-dir=/tmp - --secure-port=4443 - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname - --kubelet-use-node-status-port - --metric-resolution=15s - --kubelet-insecure-tls - --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.pem # change to front-proxy-ca.crt for kubeadm - --requestheader-username-headers=X-Remote-User - --requestheader-group-headers=X-Remote-Group - --requestheader-extra-headers-prefix=X-Remote-Extra- image: registry.cn-beijing.aliyuncs.com/dotbalo/metrics-server:0.5.0 imagePullPolicy: IfNotPresent livenessProbe: failureThreshold: 3 httpGet: path: /livez port: https scheme: HTTPS periodSeconds: 10 name: metrics-server ports: - containerPort: 4443 name: https protocol: TCP readinessProbe: failureThreshold: 3 httpGet: path: /readyz port: https scheme: HTTPS initialDelaySeconds: 20 periodSeconds: 10 resources: requests: cpu: 100m memory: 200Mi securityContext: readOnlyRootFilesystem: true runAsNonRoot: true runAsUser: 1000 volumeMounts: - mountPath: /tmp name: tmp-dir - name: ca-ssl mountPath: /etc/kubernetes/pki nodeSelector: kubernetes.io/os: linux priorityClassName: system-cluster-critical serviceAccountName: metrics-server volumes: - emptyDir: {} name: tmp-dir - name: ca-ssl hostPath: path: /etc/kubernetes/pki --- apiVersion: apiregistration.k8s.io/v1 kind: APIService metadata: labels: k8s-app: metrics-server name: v1beta1.metrics.k8s.io spec: group: metrics.k8s.io groupPriorityMinimum: 100 insecureSkipTLSVerify: true service: name: metrics-server namespace: kube-system version: v1beta1 versionPriority: 100 EOF
3.相关证书生成
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4master01节点下载证书生成工具 wget "https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssl_1.6.1_linux_amd64" -O /usr/local/bin/cfssl wget "https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssljson_1.6.1_linux_amd64" -O /usr/local/bin/cfssljson chmod +x /usr/local/bin/cfssl /usr/local/bin/cfssljson
3.1.生成etcd证书
特别说明除外，以下操作在所有master节点操作
3.1.1所有master节点创建证书存放目录
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1mkdir /etc/etcd/ssl -p
3.1.2master01节点生成etcd证书
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13cd pki # 生成etcd证书和etcd证书的key（如果你觉得以后可能会扩容，可以在ip那多写几个预留出来） cfssl gencert -initca etcd-ca-csr.json | cfssljson -bare /etc/etcd/ssl/etcd-ca cfssl gencert -ca=/etc/etcd/ssl/etcd-ca.pem -ca-key=/etc/etcd/ssl/etcd-ca-key.pem -config=ca-config.json -hostname=127.0.0.1,k8s-master01,k8s-master02,k8s-master03,192.168.1.11,192.168.1.12,192.168.1.13,2408:8207:78ca:9fa1::10,2408:8207:78ca:9fa1::20,2408:8207:78ca:9fa1::30 -profile=kubernetes etcd-csr.json | cfssljson -bare /etc/etcd/ssl/etcd
3.1.3将证书复制到其他节点
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3Master='k8s-master02 k8s-master03' for NODE in $Master; do ssh $NODE "mkdir -p /etc/etcd/ssl"; for FILE in etcd-ca-key.pem etcd-ca.pem etcd-key.pem etcd.pem; do scp /etc/etcd/ssl/${FILE} $NODE:/etc/etcd/ssl/${FILE}; done; done
3.2.生成k8s相关证书
特别说明除外，以下操作在所有master节点操作
3.2.1所有k8s节点创建证书存放目录
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1mkdir -p /etc/kubernetes/pki
3.2.2master01节点生成k8s证书
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12# 生成一个根证书 ，多写了一些IP作为预留IP，为将来添加node做准备 cfssl gencert -initca ca-csr.json | cfssljson -bare /etc/kubernetes/pki/ca # 10.96.0.1是service网段的第一个地址，需要计算，192.168.1.19为高可用vip地址 cfssl gencert -ca=/etc/kubernetes/pki/ca.pem -ca-key=/etc/kubernetes/pki/ca-key.pem -config=ca-config.json -hostname=10.96.0.1,192.168.1.19,127.0.0.1,kubernetes,kubernetes.default,kubernetes.default.svc,kubernetes.default.svc.cluster,kubernetes.default.svc.cluster.local,x.oiox.cn,k.oiox.cn,l.oiox.cn,o.oiox.cn,192.168.1.11,192.168.1.12,192.168.1.13,192.168.1.14,192.168.1.15,192.168.1.16,192.168.1.17,192.168.1.18,2408:8207:78ca:9fa1::10,2408:8207:78ca:9fa1::20,2408:8207:78ca:9fa1::30,2408:8207:78ca:9fa1::40,2408:8207:78ca:9fa1::50,2408:8207:78ca:9fa1::60,2408:8207:78ca:9fa1::70,2408:8207:78ca:9fa1::80,2408:8207:78ca:9fa1::90,2408:8207:78ca:9fa1::100 -profile=kubernetes apiserver-csr.json | cfssljson -bare /etc/kubernetes/pki/apiserver
3.2.3生成apiserver聚合证书
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9cfssl gencert -initca front-proxy-ca-csr.json | cfssljson -bare /etc/kubernetes/pki/front-proxy-ca # 有一个警告，可以忽略 cfssl gencert -ca=/etc/kubernetes/pki/front-proxy-ca.pem -ca-key=/etc/kubernetes/pki/front-proxy-ca-key.pem -config=ca-config.json -profile=kubernetes front-proxy-client-csr.json | cfssljson -bare /etc/kubernetes/pki/front-proxy-client
3.2.4生成controller-manage的证书
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87cfssl gencert -ca=/etc/kubernetes/pki/ca.pem -ca-key=/etc/kubernetes/pki/ca-key.pem -config=ca-config.json -profile=kubernetes manager-csr.json | cfssljson -bare /etc/kubernetes/pki/controller-manager # 设置一个集群项 kubectl config set-cluster kubernetes --certificate-authority=/etc/kubernetes/pki/ca.pem --embed-certs=true --server=https://192.168.1.19:8443 --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig # 设置一个环境项，一个上下文 kubectl config set-context system:kube-controller-manager@kubernetes --cluster=kubernetes --user=system:kube-controller-manager --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig # 设置一个用户项 kubectl config set-credentials system:kube-controller-manager --client-certificate=/etc/kubernetes/pki/controller-manager.pem --client-key=/etc/kubernetes/pki/controller-manager-key.pem --embed-certs=true --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig # 设置默认环境 kubectl config use-context system:kube-controller-manager@kubernetes --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig cfssl gencert -ca=/etc/kubernetes/pki/ca.pem -ca-key=/etc/kubernetes/pki/ca-key.pem -config=ca-config.json -profile=kubernetes scheduler-csr.json | cfssljson -bare /etc/kubernetes/pki/scheduler kubectl config set-cluster kubernetes --certificate-authority=/etc/kubernetes/pki/ca.pem --embed-certs=true --server=https://192.168.1.19:8443 --kubeconfig=/etc/kubernetes/scheduler.kubeconfig kubectl config set-credentials system:kube-scheduler --client-certificate=/etc/kubernetes/pki/scheduler.pem --client-key=/etc/kubernetes/pki/scheduler-key.pem --embed-certs=true --kubeconfig=/etc/kubernetes/scheduler.kubeconfig kubectl config set-context system:kube-scheduler@kubernetes --cluster=kubernetes --user=system:kube-scheduler --kubeconfig=/etc/kubernetes/scheduler.kubeconfig kubectl config use-context system:kube-scheduler@kubernetes --kubeconfig=/etc/kubernetes/scheduler.kubeconfig cfssl gencert -ca=/etc/kubernetes/pki/ca.pem -ca-key=/etc/kubernetes/pki/ca-key.pem -config=ca-config.json -profile=kubernetes admin-csr.json | cfssljson -bare /etc/kubernetes/pki/admin kubectl config set-cluster kubernetes --certificate-authority=/etc/kubernetes/pki/ca.pem --embed-certs=true --server=https://192.168.1.19:8443 --kubeconfig=/etc/kubernetes/admin.kubeconfig kubectl config set-credentials kubernetes-admin --client-certificate=/etc/kubernetes/pki/admin.pem --client-key=/etc/kubernetes/pki/admin-key.pem --embed-certs=true --kubeconfig=/etc/kubernetes/admin.kubeconfig kubectl config set-context kubernetes-admin@kubernetes --cluster=kubernetes --user=kubernetes-admin --kubeconfig=/etc/kubernetes/admin.kubeconfig kubectl config use-context kubernetes-admin@kubernetes --kubeconfig=/etc/kubernetes/admin.kubeconfig
3.2.5创建kube-proxy证书
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25cfssl gencert -ca=/etc/kubernetes/pki/ca.pem -ca-key=/etc/kubernetes/pki/ca-key.pem -config=ca-config.json -profile=kubernetes kube-proxy-csr.json | cfssljson -bare /etc/kubernetes/pki/kube-proxy kubectl config set-cluster kubernetes --certificate-authority=/etc/kubernetes/pki/ca.pem --embed-certs=true --server=https://192.168.1.19:8443 --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig kubectl config set-credentials kube-proxy --client-certificate=/etc/kubernetes/pki/kube-proxy.pem --client-key=/etc/kubernetes/pki/kube-proxy-key.pem --embed-certs=true --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig kubectl config set-context kube-proxy@kubernetes --cluster=kubernetes --user=kube-proxy --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig kubectl config use-context kube-proxy@kubernetes --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig
3.2.5创建ServiceAccount Key ——secret
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3.2.6将证书发送到其他master节点
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4#其他节点创建目录 # mkdir /etc/kubernetes/pki/ -p for NODE in k8s-master02 k8s-master03; do for FILE in $(ls /etc/kubernetes/pki | grep -v etcd); do scp /etc/kubernetes/pki/${FILE} $NODE:/etc/kubernetes/pki/${FILE}; done; for FILE in admin.kubeconfig controller-manager.kubeconfig scheduler.kubeconfig; do scp /etc/kubernetes/${FILE} $NODE:/etc/kubernetes/${FILE}; done; done
3.2.7查看证书
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12ls /etc/kubernetes/pki/ admin.csr ca.csr front-proxy-ca.csr kube-proxy.csr scheduler-key.pem admin-key.pem ca-key.pem front-proxy-ca-key.pem kube-proxy-key.pem scheduler.pem admin.pem ca.pem front-proxy-ca.pem kube-proxy.pem apiserver.csr controller-manager.csr front-proxy-client.csr sa.key apiserver-key.pem controller-manager-key.pem front-proxy-client-key.pem sa.pub apiserver.pem controller-manager.pem front-proxy-client.pem scheduler.csr # 一共26个就对了 ls /etc/kubernetes/pki/ |wc -l 26
4.k8s系统组件配置
4.1.etcd配置
4.1.1master01配置
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49# 如果要用IPv6那么把IPv4地址修改为IPv6即可 cat > /etc/etcd/etcd.config.yml << EOF name: 'k8s-master01' data-dir: /var/lib/etcd wal-dir: /var/lib/etcd/wal snapshot-count: 5000 heartbeat-interval: 100 election-timeout: 1000 quota-backend-bytes: 0 listen-peer-urls: 'https://192.168.1.11:2380' listen-client-urls: 'https://192.168.1.11:2379,http://127.0.0.1:2379' max-snapshots: 3 max-wals: 5 cors: initial-advertise-peer-urls: 'https://192.168.1.11:2380' advertise-client-urls: 'https://192.168.1.11:2379' discovery: discovery-fallback: 'proxy' discovery-proxy: discovery-srv: initial-cluster: 'k8s-master01=https://192.168.1.11:2380,k8s-master02=https://192.168.1.12:2380,k8s-master03=https://192.168.1.13:2380' initial-cluster-token: 'etcd-k8s-cluster' initial-cluster-state: 'new' strict-reconfig-check: false enable-v2: true enable-pprof: true proxy: 'off' proxy-failure-wait: 5000 proxy-refresh-interval: 30000 proxy-dial-timeout: 1000 proxy-write-timeout: 5000 proxy-read-timeout: 0 client-transport-security: cert-file: '/etc/kubernetes/pki/etcd/etcd.pem' key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem' client-cert-auth: true trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem' auto-tls: true peer-transport-security: cert-file: '/etc/kubernetes/pki/etcd/etcd.pem' key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem' peer-client-cert-auth: true trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem' auto-tls: true debug: false log-package-levels: log-outputs: [default] force-new-cluster: false EOF
4.1.2master02配置
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49# 如果要用IPv6那么把IPv4地址修改为IPv6即可 cat > /etc/etcd/etcd.config.yml << EOF name: 'k8s-master02' data-dir: /var/lib/etcd wal-dir: /var/lib/etcd/wal snapshot-count: 5000 heartbeat-interval: 100 election-timeout: 1000 quota-backend-bytes: 0 listen-peer-urls: 'https://192.168.1.12:2380' listen-client-urls: 'https://192.168.1.12:2379,http://127.0.0.1:2379' max-snapshots: 3 max-wals: 5 cors: initial-advertise-peer-urls: 'https://192.168.1.12:2380' advertise-client-urls: 'https://192.168.1.12:2379' discovery: discovery-fallback: 'proxy' discovery-proxy: discovery-srv: initial-cluster: 'k8s-master01=https://192.168.1.11:2380,k8s-master02=https://192.168.1.12:2380,k8s-master03=https://192.168.1.13:2380' initial-cluster-token: 'etcd-k8s-cluster' initial-cluster-state: 'new' strict-reconfig-check: false enable-v2: true enable-pprof: true proxy: 'off' proxy-failure-wait: 5000 proxy-refresh-interval: 30000 proxy-dial-timeout: 1000 proxy-write-timeout: 5000 proxy-read-timeout: 0 client-transport-security: cert-file: '/etc/kubernetes/pki/etcd/etcd.pem' key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem' client-cert-auth: true trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem' auto-tls: true peer-transport-security: cert-file: '/etc/kubernetes/pki/etcd/etcd.pem' key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem' peer-client-cert-auth: true trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem' auto-tls: true debug: false log-package-levels: log-outputs: [default] force-new-cluster: false EOF
4.1.3master03配置
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49# 如果要用IPv6那么把IPv4地址修改为IPv6即可 cat > /etc/etcd/etcd.config.yml << EOF name: 'k8s-master03' data-dir: /var/lib/etcd wal-dir: /var/lib/etcd/wal snapshot-count: 5000 heartbeat-interval: 100 election-timeout: 1000 quota-backend-bytes: 0 listen-peer-urls: 'https://192.168.1.13:2380' listen-client-urls: 'https://192.168.1.13:2379,http://127.0.0.1:2379' max-snapshots: 3 max-wals: 5 cors: initial-advertise-peer-urls: 'https://192.168.1.13:2380' advertise-client-urls: 'https://192.168.1.13:2379' discovery: discovery-fallback: 'proxy' discovery-proxy: discovery-srv: initial-cluster: 'k8s-master01=https://192.168.1.11:2380,k8s-master02=https://192.168.1.12:2380,k8s-master03=https://192.168.1.13:2380' initial-cluster-token: 'etcd-k8s-cluster' initial-cluster-state: 'new' strict-reconfig-check: false enable-v2: true enable-pprof: true proxy: 'off' proxy-failure-wait: 5000 proxy-refresh-interval: 30000 proxy-dial-timeout: 1000 proxy-write-timeout: 5000 proxy-read-timeout: 0 client-transport-security: cert-file: '/etc/kubernetes/pki/etcd/etcd.pem' key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem' client-cert-auth: true trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem' auto-tls: true peer-transport-security: cert-file: '/etc/kubernetes/pki/etcd/etcd.pem' key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem' peer-client-cert-auth: true trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem' auto-tls: true debug: false log-package-levels: log-outputs: [default] force-new-cluster: false EOF
4.2.创建service（所有master节点操作）
4.2.1创建etcd.service并启动
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19cat > /usr/lib/systemd/system/etcd.service << EOF [Unit] Description=Etcd Service Documentation=https://coreos.com/etcd/docs/latest/ After=network.target [Service] Type=notify ExecStart=/usr/local/bin/etcd --config-file=/etc/etcd/etcd.config.yml Restart=on-failure RestartSec=10 LimitNOFILE=65536 [Install] WantedBy=multi-user.target Alias=etcd3.service EOF
4.2.2创建etcd证书目录
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4mkdir /etc/kubernetes/pki/etcd ln -s /etc/etcd/ssl/* /etc/kubernetes/pki/etcd/ systemctl daemon-reload systemctl enable --now etcd
4.2.3查看etcd状态
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12# 如果要用IPv6那么把IPv4地址修改为IPv6即可 export ETCDCTL_API=3 etcdctl --endpoints="192.168.1.13:2379,192.168.1.12:2379,192.168.1.11:2379" --cacert=/etc/kubernetes/pki/etcd/etcd-ca.pem --cert=/etc/kubernetes/pki/etcd/etcd.pem --key=/etc/kubernetes/pki/etcd/etcd-key.pem endpoint status --write-out=table +----------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+ | ENDPOINT | ID | VERSION | DB SIZE | IS LEADER | IS LEARNER | RAFT TERM | RAFT INDEX | RAFT APPLIED INDEX | ERRORS | +----------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+ | 192.168.1.13:2379 | c0c8142615b9523f | 3.5.4 | 20 kB | false | false | 2 | 9 | 9 | | | 192.168.1.12:2379 | de8396604d2c160d | 3.5.4 | 20 kB | false | false | 2 | 9 | 9 | | | 192.168.1.11:2379 | 33c9d6df0037ab97 | 3.5.4 | 20 kB | true | false | 2 | 9 | 9 | | +----------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+ [root@k8s-master01 pki]#
5.高可用配置
5.1在master三台服务器上操作
5.1.1安装keepalived和haproxy服务
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1apt -y install keepalived haproxy
5.1.2修改haproxy配置文件（配置文件一样）
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45# cp /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.bak cat >/etc/haproxy/haproxy.cfg<<"EOF" global maxconn 2000 ulimit-n 16384 log 127.0.0.1 local0 err stats timeout 30s defaults log global mode http option httplog timeout connect 5000 timeout client 50000 timeout server 50000 timeout http-request 15s timeout http-keep-alive 15s frontend monitor-in bind *:33305 mode http option httplog monitor-uri /monitor frontend k8s-master bind 0.0.0.0:8443 bind 127.0.0.1:8443 mode tcp option tcplog tcp-request inspect-delay 5s default_backend k8s-master backend k8s-master mode tcp option tcplog option tcp-check balance roundrobin default-server inter 10s downinter 5s rise 2 fall 2 slowstart 60s maxconn 250 maxqueue 256 weight 100 server k8s-master01 192.168.1.11:6443 check server k8s-master02 192.168.1.12:6443 check server k8s-master03 192.168.1.13:6443 check EOF
5.1.3M1配置keepalived master节点
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35#cp /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak cat > /etc/keepalived/keepalived.conf << EOF ! Configuration File for keepalived global_defs { router_id LVS_DEVEL } vrrp_script chk_apiserver { script "/etc/keepalived/check_apiserver.sh" interval 5 weight -5 fall 2 rise 1 } vrrp_instance VI_1 { state MASTER interface ens18 mcast_src_ip 192.168.1.11 virtual_router_id 51 priority 100 nopreempt advert_int 2 authentication { auth_type PASS auth_pass K8SHA_KA_AUTH } virtual_ipaddress { 192.168.1.19 } track_script { chk_apiserver } } EOF
5.1.4M2配置keepalived backup节点
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36# cp /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak cat > /etc/keepalived/keepalived.conf << EOF ! Configuration File for keepalived global_defs { router_id LVS_DEVEL } vrrp_script chk_apiserver { script "/etc/keepalived/check_apiserver.sh" interval 5 weight -5 fall 2 rise 1 } vrrp_instance VI_1 { state BACKUP interface ens18 mcast_src_ip 192.168.1.12 virtual_router_id 51 priority 50 nopreempt advert_int 2 authentication { auth_type PASS auth_pass K8SHA_KA_AUTH } virtual_ipaddress { 192.168.1.19 } track_script { chk_apiserver } } EOF
5.1.5M3配置keepalived backup节点
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36# cp /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak cat > /etc/keepalived/keepalived.conf << EOF ! Configuration File for keepalived global_defs { router_id LVS_DEVEL } vrrp_script chk_apiserver { script "/etc/keepalived/check_apiserver.sh" interval 5 weight -5 fall 2 rise 1 } vrrp_instance VI_1 { state BACKUP interface ens18 mcast_src_ip 192.168.1.13 virtual_router_id 51 priority 50 nopreempt advert_int 2 authentication { auth_type PASS auth_pass K8SHA_KA_AUTH } virtual_ipaddress { 192.168.1.19 } track_script { chk_apiserver } } EOF
5.1.5健康检查脚本配置（所有master主机）
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29cat > /etc/keepalived/check_apiserver.sh << EOF #!/bin/bash err=0 for k in $(seq 1 3) do check_code=$(pgrep haproxy) if [[ $check_code == "" ]]; then err=$(expr $err + 1) sleep 1 continue else err=0 break fi done if [[ $err != "0" ]]; then echo "systemctl stop keepalived" /usr/bin/systemctl stop keepalived exit 1 else exit 0 fi EOF # 给脚本授权 chmod +x /etc/keepalived/check_apiserver.sh
5.1.6启动服务
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5.1.7测试高可用
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9# 能ping同 [root@k8s-node02 ~]# ping 192.168.1.19 # 能telnet访问 [root@k8s-node02 ~]# telnet 192.168.1.19 8443 # 关闭主节点，看vip是否漂移到备节点
6.k8s组件配置（区别于第4点）
所有k8s节点创建以下目录
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1mkdir -p /etc/kubernetes/manifests/ /etc/systemd/system/kubelet.service.d /var/lib/kubelet /var/log/kubernetes
6.1.创建apiserver（所有master节点）
6.1.1master01节点配置
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52cat > /usr/lib/systemd/system/kube-apiserver.service << EOF [Unit] Description=Kubernetes API Server Documentation=https://github.com/kubernetes/kubernetes After=network.target [Service] ExecStart=/usr/local/bin/kube-apiserver --v=2 --logtostderr=true --allow-privileged=true --bind-address=0.0.0.0 --secure-port=6443 --advertise-address=192.168.1.11 --service-cluster-ip-range=10.96.0.0/12,fd00::/108 --feature-gates=IPv6DualStack=true --service-node-port-range=30000-32767 --etcd-servers=https://192.168.1.11:2379,https://192.168.1.12:2379,https://192.168.1.13:2379 --etcd-cafile=/etc/etcd/ssl/etcd-ca.pem --etcd-certfile=/etc/etcd/ssl/etcd.pem --etcd-keyfile=/etc/etcd/ssl/etcd-key.pem --client-ca-file=/etc/kubernetes/pki/ca.pem --tls-cert-file=/etc/kubernetes/pki/apiserver.pem --tls-private-key-file=/etc/kubernetes/pki/apiserver-key.pem --kubelet-client-certificate=/etc/kubernetes/pki/apiserver.pem --kubelet-client-key=/etc/kubernetes/pki/apiserver-key.pem --service-account-key-file=/etc/kubernetes/pki/sa.pub --service-account-signing-key-file=/etc/kubernetes/pki/sa.key --service-account-issuer=https://kubernetes.default.svc.cluster.local --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,ResourceQuota --authorization-mode=Node,RBAC --enable-bootstrap-token-auth=true --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.pem --proxy-client-cert-file=/etc/kubernetes/pki/front-proxy-client.pem --proxy-client-key-file=/etc/kubernetes/pki/front-proxy-client-key.pem --requestheader-allowed-names=aggregator --requestheader-group-headers=X-Remote-Group --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-username-headers=X-Remote-User --enable-aggregator-routing=true # --token-auth-file=/etc/kubernetes/token.csv Restart=on-failure RestartSec=10s LimitNOFILE=65535 [Install] WantedBy=multi-user.target EOF
6.1.2master02节点配置
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6.1.3master03节点配置
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6.1.4启动apiserver（所有master节点）
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6.2.配置kube-controller-manager service
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41# 所有master节点配置，且配置相同 # 172.16.0.0/12为pod网段，按需求设置你自己的网段 cat > /usr/lib/systemd/system/kube-controller-manager.service << EOF [Unit] Description=Kubernetes Controller Manager Documentation=https://github.com/kubernetes/kubernetes After=network.target [Service] ExecStart=/usr/local/bin/kube-controller-manager --v=2 --logtostderr=true --bind-address=127.0.0.1 --root-ca-file=/etc/kubernetes/pki/ca.pem --cluster-signing-cert-file=/etc/kubernetes/pki/ca.pem --cluster-signing-key-file=/etc/kubernetes/pki/ca-key.pem --service-account-private-key-file=/etc/kubernetes/pki/sa.key --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig --leader-elect=true --use-service-account-credentials=true --node-monitor-grace-period=40s --node-monitor-period=5s --pod-eviction-timeout=2m0s --controllers=*,bootstrapsigner,tokencleaner --allocate-node-cidrs=true --feature-gates=IPv6DualStack=true --service-cluster-ip-range=10.96.0.0/12,fd00::/108 --cluster-cidr=172.16.0.0/12,fc00::/48 --node-cidr-mask-size-ipv4=24 --node-cidr-mask-size-ipv6=64 --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.pem Restart=always RestartSec=10s [Install] WantedBy=multi-user.target EOF
6.2.1启动kube-controller-manager，并查看状态
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3systemctl daemon-reload systemctl enable --now kube-controller-manager systemctl status kube-controller-manager
6.3.配置kube-scheduler service
6.3.1所有master节点配置，且配置相同
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22cat > /usr/lib/systemd/system/kube-scheduler.service << EOF [Unit] Description=Kubernetes Scheduler Documentation=https://github.com/kubernetes/kubernetes After=network.target [Service] ExecStart=/usr/local/bin/kube-scheduler --v=2 --logtostderr=true --bind-address=127.0.0.1 --leader-elect=true --kubeconfig=/etc/kubernetes/scheduler.kubeconfig Restart=always RestartSec=10s [Install] WantedBy=multi-user.target EOF
6.3.2启动并查看服务状态
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3systemctl daemon-reload systemctl enable --now kube-scheduler systemctl status kube-scheduler
7.TLS Bootstrapping配置
7.1在master01上配置
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22cd bootstrap kubectl config set-cluster kubernetes --certificate-authority=/etc/kubernetes/pki/ca.pem --embed-certs=true --server=https://192.168.1.19:8443 --kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig kubectl config set-credentials tls-bootstrap-token-user --token=c8ad9c.2e4d610cf3e7426e --kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig kubectl config set-context tls-bootstrap-token-user@kubernetes --cluster=kubernetes --user=tls-bootstrap-token-user --kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig kubectl config use-context tls-bootstrap-token-user@kubernetes --kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig # token的位置在bootstrap.secret.yaml，如果修改的话到这个文件修改 mkdir -p /root/.kube ; cp /etc/kubernetes/admin.kubeconfig /root/.kube/config
7.2查看集群状态，没问题的话继续后续操作
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18# 三台ha节点重启haproxy systemctl stop haproxy systemctl start haproxy kubectl get cs Warning: v1 ComponentStatus is deprecated in v1.19+ NAME STATUS MESSAGE ERROR scheduler Healthy ok controller-manager Healthy ok etcd-0 Healthy {"health":"true","reason":""} etcd-2 Healthy {"health":"true","reason":""} etcd-1 Healthy {"health":"true","reason":""} # 切记执行，别忘记！！！ kubectl create -f bootstrap.secret.yaml
8.node节点配置
8.1.在master01上将证书复制到node节点
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3cd /etc/kubernetes/ for NODE in k8s-master02 k8s-master03 k8s-node01 k8s-node02; do ssh $NODE mkdir -p /etc/kubernetes/pki; for FILE in pki/ca.pem pki/ca-key.pem pki/front-proxy-ca.pem bootstrap-kubelet.kubeconfig kube-proxy.kubeconfig; do scp /etc/kubernetes/$FILE $NODE:/etc/kubernetes/${FILE}; done; done
8.2.kubelet配置
8.2.1所有k8s节点创建相关目录
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26mkdir -p /var/lib/kubelet /var/log/kubernetes /etc/systemd/system/kubelet.service.d /etc/kubernetes/manifests/ # 所有k8s节点配置kubelet service cat > /usr/lib/systemd/system/kubelet.service << EOF [Unit] Description=Kubernetes Kubelet Documentation=https://github.com/kubernetes/kubernetes After=containerd.service Requires=containerd.service [Service] ExecStart=/usr/local/bin/kubelet --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig --kubeconfig=/etc/kubernetes/kubelet.kubeconfig --config=/etc/kubernetes/kubelet-conf.yml --container-runtime=remote --runtime-request-timeout=15m --container-runtime-endpoint=unix:///run/containerd/containerd.sock --cgroup-driver=systemd --node-labels=node.kubernetes.io/node='' --feature-gates=IPv6DualStack=true [Install] WantedBy=multi-user.target EOF
8.2.2所有k8s节点创建kubelet的配置文件
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72cat > /etc/kubernetes/kubelet-conf.yml <<EOF apiVersion: kubelet.config.k8s.io/v1beta1 kind: KubeletConfiguration address: 0.0.0.0 port: 10250 readOnlyPort: 10255 authentication: anonymous: enabled: false webhook: cacheTTL: 2m0s enabled: true x509: clientCAFile: /etc/kubernetes/pki/ca.pem authorization: mode: Webhook webhook: cacheAuthorizedTTL: 5m0s cacheUnauthorizedTTL: 30s cgroupDriver: systemd cgroupsPerQOS: true clusterDNS: - 10.96.0.10 clusterDomain: cluster.local containerLogMaxFiles: 5 containerLogMaxSize: 10Mi contentType: application/vnd.kubernetes.protobuf cpuCFSQuota: true cpuManagerPolicy: none cpuManagerReconcilePeriod: 10s enableControllerAttachDetach: true enableDebuggingHandlers: true enforceNodeAllocatable: - pods eventBurst: 10 eventRecordQPS: 5 evictionHard: imagefs.available: 15% memory.available: 100Mi nodefs.available: 10% nodefs.inodesFree: 5% evictionPressureTransitionPeriod: 5m0s failSwapOn: true fileCheckFrequency: 20s hairpinMode: promiscuous-bridge healthzBindAddress: 127.0.0.1 healthzPort: 10248 httpCheckFrequency: 20s imageGCHighThresholdPercent: 85 imageGCLowThresholdPercent: 80 imageMinimumGCAge: 2m0s iptablesDropBit: 15 iptablesMasqueradeBit: 14 kubeAPIBurst: 10 kubeAPIQPS: 5 makeIPTablesUtilChains: true maxOpenFiles: 1000000 maxPods: 110 nodeStatusUpdateFrequency: 10s oomScoreAdj: -999 podPidsLimit: -1 registryBurst: 10 registryPullQPS: 5 resolvConf: /etc/resolv.conf rotateCertificates: true runtimeRequestTimeout: 2m0s serializeImagePulls: true staticPodPath: /etc/kubernetes/manifests streamingConnectionIdleTimeout: 4h0m0s syncFrequency: 1m0s volumeStatsAggPeriod: 1m0s EOF
8.2.3启动kubelet
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8.2.4查看集群
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8[root@k8s-master01 ~]# kubectl get node NAME STATUS ROLES AGE VERSION k8s-master01 Ready <none> 12s v1.24.1 k8s-master02 Ready <none> 12s v1.24.1 k8s-master03 Ready <none> 12s v1.24.1 k8s-node01 Ready <none> 12s v1.24.1 k8s-node02 Ready <none> 12s v1.24.1 [root@k8s-master01 ~]#
8.3.kube-proxy配置
8.3.1将kubeconfig发送至其他节点
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3for NODE in k8s-master02 k8s-master03; do scp /etc/kubernetes/kube-proxy.kubeconfig $NODE:/etc/kubernetes/kube-proxy.kubeconfig; done for NODE in k8s-node01 k8s-node02; do scp /etc/kubernetes/kube-proxy.kubeconfig $NODE:/etc/kubernetes/kube-proxy.kubeconfig; done
8.3.2所有k8s节点添加kube-proxy的service文件
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18cat > /usr/lib/systemd/system/kube-proxy.service << EOF [Unit] Description=Kubernetes Kube Proxy Documentation=https://github.com/kubernetes/kubernetes After=network.target [Service] ExecStart=/usr/local/bin/kube-proxy --config=/etc/kubernetes/kube-proxy.yaml --v=2 Restart=always RestartSec=10s [Install] WantedBy=multi-user.target EOF
8.3.3所有k8s节点添加kube-proxy的配置
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39cat > /etc/kubernetes/kube-proxy.yaml << EOF apiVersion: kubeproxy.config.k8s.io/v1alpha1 bindAddress: 0.0.0.0 clientConnection: acceptContentTypes: "" burst: 10 contentType: application/vnd.kubernetes.protobuf kubeconfig: /etc/kubernetes/kube-proxy.kubeconfig qps: 5 clusterCIDR: 172.16.0.0/12,fc00::/48 configSyncPeriod: 15m0s conntrack: max: null maxPerCore: 32768 min: 131072 tcpCloseWaitTimeout: 1h0m0s tcpEstablishedTimeout: 24h0m0s enableProfiling: false healthzBindAddress: 0.0.0.0:10256 hostnameOverride: "" iptables: masqueradeAll: false masqueradeBit: 14 minSyncPeriod: 0s syncPeriod: 30s ipvs: masqueradeAll: true minSyncPeriod: 5s scheduler: "rr" syncPeriod: 30s kind: KubeProxyConfiguration metricsBindAddress: 127.0.0.1:10249 mode: "ipvs" nodePortAddresses: null oomScoreAdj: -999 portRange: "" udpIdleTimeout: 250ms EOF
8.3.4启动kube-proxy
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3systemctl daemon-reload systemctl restart kube-proxy systemctl enable --now kube-proxy
9.安装Calico
9.1以下步骤只在master01操作
9.1.1更改calico网段
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25# vim calico.yaml vim calico-ipv6.yaml # calico-config ConfigMap处 "ipam": { "type": "calico-ipam", "assign_ipv4": "true", "assign_ipv6": "true" }, - name: IP value: "autodetect" - name: IP6 value: "autodetect" - name: CALICO_IPV4POOL_CIDR value: "172.16.0.0/16" - name: CALICO_IPV6POOL_CIDR value: "fc00::/48" - name: FELIX_IPV6SUPPORT value: "true" # kubectl apply -f calico.yaml kubectl apply -f calico-ipv6.yaml
9.1.2查看容器状态
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10[root@k8s-master01 ~]# kubectl get pod -A NAMESPACE NAME READY STATUS RESTARTS AGE kube-system calico-kube-controllers-7fb57bc4b5-dwwg8 1/1 Running 0 23s kube-system calico-node-b8p4z 1/1 Running 0 23s kube-system calico-node-c4lzj 1/1 Running 0 23s kube-system calico-node-dfh2m 1/1 Running 0 23s kube-system calico-node-gbhgn 1/1 Running 0 23s kube-system calico-node-ht6nl 1/1 Running 0 23s kube-system calico-typha-dd885f47-jvgsj 1/1 Running 0 23s [root@k8s-master01 ~]#
10.安装CoreDNS
10.1以下步骤只在master01操作
10.1.1修改文件
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6cd coredns/ sed -i "s#10.96.0.10#10.96.0.10#g" coredns.yaml cat coredns.yaml | grep clusterIP: clusterIP: 10.96.0.10
10.1.2安装
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7kubectl create -f coredns.yaml serviceaccount/coredns created clusterrole.rbac.authorization.k8s.io/system:coredns created clusterrolebinding.rbac.authorization.k8s.io/system:coredns created configmap/coredns created deployment.apps/coredns created service/kube-dns created
11.安装Metrics Server
11.1以下步骤只在master01操作
11.1.1安装Metrics-server
在新版的Kubernetes中系统资源的采集均使用Metrics-server，可以通过Metrics采集节点和Pod的内存、磁盘、CPU和网络的使用率
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4# 安装metrics server cd metrics-server/ kubectl apply -f metrics-server.yaml
11.1.2稍等片刻查看状态
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10kubectl top node NAME CPU(cores) CPU% MEMORY(bytes) MEMORY% k8s-master01 154m 1% 1715Mi 21% k8s-master02 151m 1% 1274Mi 16% k8s-master03 523m 6% 1345Mi 17% k8s-node01 84m 1% 671Mi 8% k8s-node02 73m 0% 727Mi 9% k8s-node03 96m 1% 769Mi 9% k8s-node04 68m 0% 673Mi 8% k8s-node05 82m 1% 679Mi 8%
12.集群验证
12.1部署pod资源
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24cat<<EOF | kubectl apply -f - apiVersion: v1 kind: Pod metadata: name: busybox namespace: default spec: containers: - name: busybox image: busybox:1.28 command: - sleep - "3600" imagePullPolicy: IfNotPresent restartPolicy: Always EOF # 查看 kubectl get pod NAME READY STATUS RESTARTS AGE busybox 1/1 Running 0 17s
12.2用pod解析默认命名空间中的kubernetes
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11kubectl get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 17h kubectl exec busybox -n default -- nslookup kubernetes 3Server: 10.96.0.10 Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local Name: kubernetes Address 1: 10.96.0.1 kubernetes.default.svc.cluster.local
12.3测试跨命名空间是否可以解析
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6kubectl exec busybox -n default -- nslookup kube-dns.kube-system Server: 10.96.0.10 Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local Name: kube-dns.kube-system Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local
12.4每个节点都必须要能访问Kubernetes的kubernetes svc 443和kube-dns的service 53
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12telnet 10.96.0.1 443 Trying 10.96.0.1... Connected to 10.96.0.1. Escape character is '^]'. telnet 10.96.0.10 53 Trying 10.96.0.10... Connected to 10.96.0.10. Escape character is '^]'. curl 10.96.0.10:53 curl: (52) Empty reply from server
12.5Pod和Pod之前要能通
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30kubectl get po -owide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES busybox 1/1 Running 0 17m 172.27.14.193 k8s-node02 <none> <none> kubectl get po -n kube-system -owide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES calico-kube-controllers-5dffd5886b-4blh6 1/1 Running 0 77m 172.25.244.193 k8s-master01 <none> <none> calico-node-fvbdq 1/1 Running 1 (75m ago) 77m 192.168.1.11 k8s-master01 <none> <none> calico-node-g8nqd 1/1 Running 0 77m 192.168.1.14 k8s-node01 <none> <none> calico-node-mdps8 1/1 Running 0 77m 192.168.1.15 k8s-node02 <none> <none> calico-node-nf4nt 1/1 Running 0 77m 192.168.1.13 k8s-master03 <none> <none> calico-node-sq2ml 1/1 Running 0 77m 192.168.1.12 k8s-master02 <none> <none> calico-typha-8445487f56-mg6p8 1/1 Running 0 77m 192.168.1.15 k8s-node02 <none> <none> calico-typha-8445487f56-pxbpj 1/1 Running 0 77m 192.168.1.11 k8s-master01 <none> <none> calico-typha-8445487f56-tnssl 1/1 Running 0 77m 192.168.1.14 k8s-node01 <none> <none> coredns-5db5696c7-67h79 1/1 Running 0 63m 172.25.92.65 k8s-master02 <none> <none> metrics-server-6bf7dcd649-5fhrw 1/1 Running 0 61m 172.18.195.1 k8s-master03 <none> <none> # 进入busybox ping其他节点上的pod kubectl exec -ti busybox -- sh / # ping 192.168.1.14 PING 192.168.1.14 (192.168.1.14): 56 data bytes 64 bytes from 192.168.1.14: seq=0 ttl=63 time=0.358 ms 64 bytes from 192.168.1.14: seq=1 ttl=63 time=0.668 ms 64 bytes from 192.168.1.14: seq=2 ttl=63 time=0.637 ms 64 bytes from 192.168.1.14: seq=3 ttl=63 time=0.624 ms 64 bytes from 192.168.1.14: seq=4 ttl=63 time=0.907 ms # 可以连通证明这个pod是可以跨命名空间和跨主机通信的
12.6创建三个副本，可以看到3个副本分布在不同的节点上（用完可以删了）
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39cat > deployments.yaml << EOF apiVersion: apps/v1 kind: Deployment metadata: name: nginx-deployment labels: app: nginx spec: replicas: 3 selector: matchLabels: app: nginx template: metadata: labels: app: nginx spec: containers: - name: nginx image: nginx:1.14.2 ports: - containerPort: 80 EOF kubectl apply -f deployments.yaml deployment.apps/nginx-deployment created kubectl get pod NAME READY STATUS RESTARTS AGE busybox 1/1 Running 0 6m25s nginx-deployment-9456bbbf9-4bmvk 1/1 Running 0 8s nginx-deployment-9456bbbf9-9rcdk 1/1 Running 0 8s nginx-deployment-9456bbbf9-dqv8s 1/1 Running 0 8s # 删除nginx [root@k8s-master01 ~]# kubectl delete -f deployments.yaml
13.安装dashboard
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5wget https://raw.githubusercontent.com/cby-chen/Kubernetes/main/yaml/dashboard.yaml wget https://raw.githubusercontent.com/cby-chen/Kubernetes/main/yaml/dashboard-user.yaml kubectl apply -f dashboard.yaml kubectl apply -f dashboard-user.yaml
13.1更改dashboard的svc为NodePort，如果已是请忽略
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2kubectl edit svc kubernetes-dashboard -n kubernetes-dashboard type: NodePort
13.2查看端口号
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3kubectl get svc kubernetes-dashboard -n kubernetes-dashboard NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes-dashboard NodePort 10.108.120.110 <none> 443:30034/TCP 34s
13.3创建token
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2kubectl -n kubernetes-dashboard create token admin-user eyJhbGciOiJSUzI1NiIsImtpZCI6ImxkV1hHaHViN2d3STVLTkxtbFkyaUZPdnhWa0s2NjUzRGVrNmJhMjVpRmsifQ.eyJhdWQiOlsiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNjUzODMwMTUwLCJpYXQiOjE2NTM4MjY1NTAsImlzcyI6Imh0dHBzOi8va3ViZXJuZXRlcy5kZWZhdWx0LnN2Yy5jbHVzdGVyLmxvY2FsIiwia3ViZXJuZXRlcy5pbyI6eyJuYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsInNlcnZpY2VhY2NvdW50Ijp7Im5hbWUiOiJhZG1pbi11c2VyIiwidWlkIjoiZDZlOTI2YWUtNDExYS00YTU3LTk3NWUtOWI4ZTEyMzYyZjg1In19LCJuYmYiOjE2NTM4MjY1NTAsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlcm5ldGVzLWRhc2hib2FyZDphZG1pbi11c2VyIn0.ZSGJmGQc0F1jeJp8SwgZQ0a9ynTYi-y1JNUBJBhjRVStS9KphVK5MLpRxV4KqzhzGt8pR20nNZGop3na6EgIXVJ8XNrlQQO8kZV_I11ylw_mqL7sjCK_UsxJODOOvoRzOJMN3Qd9ONLB3cPjge9zIGeRvaEwpQulOWALScyQvO__1LkSjqz2DPQM7aDh0Gt6VZ2-JoVgTlEBy--nF-Okb0qyHMI8KEcqv7BnI1rJw5rETL7JrYBM3YIWY8_Ft71w6dKn7UhEbB9tPVMi0ymGTpUVja2M2ypsDymrMlcd4doRUn98F_i0iGW4ZN3CweRDFnkwwIUODjTn1fdp1uPXnQ
13.3登录dashboard
https://192.168.1.11:30034/
14.ingress安装
14.1写入配置文件，并执行
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686[root@hello ~/yaml]# vim deploy.yaml [root@hello ~/yaml]# cat deploy.yaml apiVersion: v1 kind: Namespace metadata: name: ingress-nginx labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx --- # Source: ingress-nginx/templates/controller-serviceaccount.yaml apiVersion: v1 kind: ServiceAccount metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: controller name: ingress-nginx namespace: ingress-nginx automountServiceAccountToken: true --- # Source: ingress-nginx/templates/controller-configmap.yaml apiVersion: v1 kind: ConfigMap metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: controller name: ingress-nginx-controller namespace: ingress-nginx data: allow-snippet-annotations: 'true' --- # Source: ingress-nginx/templates/clusterrole.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm name: ingress-nginx rules: - apiGroups: - '' resources: - configmaps - endpoints - nodes - pods - secrets - namespaces verbs: - list - watch - apiGroups: - '' resources: - nodes verbs: - get - apiGroups: - '' resources: - services verbs: - get - list - watch - apiGroups: - networking.k8s.io resources: - ingresses verbs: - get - list - watch - apiGroups: - '' resources: - events verbs: - create - patch - apiGroups: - networking.k8s.io resources: - ingresses/status verbs: - update - apiGroups: - networking.k8s.io resources: - ingressclasses verbs: - get - list - watch --- # Source: ingress-nginx/templates/clusterrolebinding.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm name: ingress-nginx roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: ingress-nginx subjects: - kind: ServiceAccount name: ingress-nginx namespace: ingress-nginx --- # Source: ingress-nginx/templates/controller-role.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: Role metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: controller name: ingress-nginx namespace: ingress-nginx rules: - apiGroups: - '' resources: - namespaces verbs: - get - apiGroups: - '' resources: - configmaps - pods - secrets - endpoints verbs: - get - list - watch - apiGroups: - '' resources: - services verbs: - get - list - watch - apiGroups: - networking.k8s.io resources: - ingresses verbs: - get - list - watch - apiGroups: - networking.k8s.io resources: - ingresses/status verbs: - update - apiGroups: - networking.k8s.io resources: - ingressclasses verbs: - get - list - watch - apiGroups: - '' resources: - configmaps resourceNames: - ingress-controller-leader verbs: - get - update - apiGroups: - '' resources: - configmaps verbs: - create - apiGroups: - '' resources: - events verbs: - create - patch --- # Source: ingress-nginx/templates/controller-rolebinding.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: RoleBinding metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: controller name: ingress-nginx namespace: ingress-nginx roleRef: apiGroup: rbac.authorization.k8s.io kind: Role name: ingress-nginx subjects: - kind: ServiceAccount name: ingress-nginx namespace: ingress-nginx --- # Source: ingress-nginx/templates/controller-service-webhook.yaml apiVersion: v1 kind: Service metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: controller name: ingress-nginx-controller-admission namespace: ingress-nginx spec: type: ClusterIP ports: - name: https-webhook port: 443 targetPort: webhook appProtocol: https selector: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/component: controller --- # Source: ingress-nginx/templates/controller-service.yaml apiVersion: v1 kind: Service metadata: annotations: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: controller name: ingress-nginx-controller namespace: ingress-nginx spec: type: NodePort externalTrafficPolicy: Local ipFamilyPolicy: SingleStack ipFamilies: - IPv4 ports: - name: http port: 80 protocol: TCP targetPort: http appProtocol: http - name: https port: 443 protocol: TCP targetPort: https appProtocol: https selector: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/component: controller --- # Source: ingress-nginx/templates/controller-deployment.yaml apiVersion: apps/v1 kind: Deployment metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: controller name: ingress-nginx-controller namespace: ingress-nginx spec: selector: matchLabels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/component: controller revisionHistoryLimit: 10 minReadySeconds: 0 template: metadata: labels: app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/component: controller spec: dnsPolicy: ClusterFirst containers: - name: controller image: registry.cn-hangzhou.aliyuncs.com/chenby/controller:v1.2.0 imagePullPolicy: IfNotPresent lifecycle: preStop: exec: command: - /wait-shutdown args: - /nginx-ingress-controller - --election-id=ingress-controller-leader - --controller-class=k8s.io/ingress-nginx - --configmap=$(POD_NAMESPACE)/ingress-nginx-controller - --validating-webhook=:8443 - --validating-webhook-certificate=/usr/local/certificates/cert - --validating-webhook-key=/usr/local/certificates/key securityContext: capabilities: drop: - ALL add: - NET_BIND_SERVICE runAsUser: 101 allowPrivilegeEscalation: true env: - name: POD_NAME valueFrom: fieldRef: fieldPath: metadata.name - name: POD_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace - name: LD_PRELOAD value: /usr/local/lib/libmimalloc.so livenessProbe: failureThreshold: 5 httpGet: path: /healthz port: 10254 scheme: HTTP initialDelaySeconds: 10 periodSeconds: 10 successThreshold: 1 timeoutSeconds: 1 readinessProbe: failureThreshold: 3 httpGet: path: /healthz port: 10254 scheme: HTTP initialDelaySeconds: 10 periodSeconds: 10 successThreshold: 1 timeoutSeconds: 1 ports: - name: http containerPort: 80 protocol: TCP - name: https containerPort: 443 protocol: TCP - name: webhook containerPort: 8443 protocol: TCP volumeMounts: - name: webhook-cert mountPath: /usr/local/certificates/ readOnly: true resources: requests: cpu: 100m memory: 90Mi nodeSelector: kubernetes.io/os: linux serviceAccountName: ingress-nginx terminationGracePeriodSeconds: 300 volumes: - name: webhook-cert secret: secretName: ingress-nginx-admission --- # Source: ingress-nginx/templates/controller-ingressclass.yaml # We don't support namespaced ingressClass yet # So a ClusterRole and a ClusterRoleBinding is required apiVersion: networking.k8s.io/v1 kind: IngressClass metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: controller name: nginx namespace: ingress-nginx spec: controller: k8s.io/ingress-nginx --- # Source: ingress-nginx/templates/admission-webhooks/validating-webhook.yaml # before changing this value, check the required kubernetes version # https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/#prerequisites apiVersion: admissionregistration.k8s.io/v1 kind: ValidatingWebhookConfiguration metadata: labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook name: ingress-nginx-admission webhooks: - name: validate.nginx.ingress.kubernetes.io matchPolicy: Equivalent rules: - apiGroups: - networking.k8s.io apiVersions: - v1 operations: - CREATE - UPDATE resources: - ingresses failurePolicy: Fail sideEffects: None admissionReviewVersions: - v1 clientConfig: service: namespace: ingress-nginx name: ingress-nginx-controller-admission path: /networking/v1/ingresses --- # Source: ingress-nginx/templates/admission-webhooks/job-patch/serviceaccount.yaml apiVersion: v1 kind: ServiceAccount metadata: name: ingress-nginx-admission namespace: ingress-nginx annotations: helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook --- # Source: ingress-nginx/templates/admission-webhooks/job-patch/clusterrole.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: name: ingress-nginx-admission annotations: helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook rules: - apiGroups: - admissionregistration.k8s.io resources: - validatingwebhookconfigurations verbs: - get - update --- # Source: ingress-nginx/templates/admission-webhooks/job-patch/clusterrolebinding.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: name: ingress-nginx-admission annotations: helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook roleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: ingress-nginx-admission subjects: - kind: ServiceAccount name: ingress-nginx-admission namespace: ingress-nginx --- # Source: ingress-nginx/templates/admission-webhooks/job-patch/role.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: Role metadata: name: ingress-nginx-admission namespace: ingress-nginx annotations: helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook rules: - apiGroups: - '' resources: - secrets verbs: - get - create --- # Source: ingress-nginx/templates/admission-webhooks/job-patch/rolebinding.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: RoleBinding metadata: name: ingress-nginx-admission namespace: ingress-nginx annotations: helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook roleRef: apiGroup: rbac.authorization.k8s.io kind: Role name: ingress-nginx-admission subjects: - kind: ServiceAccount name: ingress-nginx-admission namespace: ingress-nginx --- # Source: ingress-nginx/templates/admission-webhooks/job-patch/job-createSecret.yaml apiVersion: batch/v1 kind: Job metadata: name: ingress-nginx-admission-create namespace: ingress-nginx annotations: helm.sh/hook: pre-install,pre-upgrade helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook spec: template: metadata: name: ingress-nginx-admission-create labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook spec: containers: - name: create image: registry.cn-hangzhou.aliyuncs.com/chenby/kube-webhook-certgen:v1.2.0 imagePullPolicy: IfNotPresent args: - create - --host=ingress-nginx-controller-admission,ingress-nginx-controller-admission.$(POD_NAMESPACE).svc - --namespace=$(POD_NAMESPACE) - --secret-name=ingress-nginx-admission env: - name: POD_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace securityContext: allowPrivilegeEscalation: false restartPolicy: OnFailure serviceAccountName: ingress-nginx-admission nodeSelector: kubernetes.io/os: linux securityContext: runAsNonRoot: true runAsUser: 2000 --- # Source: ingress-nginx/templates/admission-webhooks/job-patch/job-patchWebhook.yaml apiVersion: batch/v1 kind: Job metadata: name: ingress-nginx-admission-patch namespace: ingress-nginx annotations: helm.sh/hook: post-install,post-upgrade helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook spec: template: metadata: name: ingress-nginx-admission-patch labels: helm.sh/chart: ingress-nginx-4.0.10 app.kubernetes.io/name: ingress-nginx app.kubernetes.io/instance: ingress-nginx app.kubernetes.io/version: 1.1.0 app.kubernetes.io/managed-by: Helm app.kubernetes.io/component: admission-webhook spec: containers: - name: patch image: registry.cn-hangzhou.aliyuncs.com/chenby/kube-webhook-certgen:v1.1.1 imagePullPolicy: IfNotPresent args: - patch - --webhook-name=ingress-nginx-admission - --namespace=$(POD_NAMESPACE) - --patch-mutating=false - --secret-name=ingress-nginx-admission - --patch-failure-policy=Fail env: - name: POD_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace securityContext: allowPrivilegeEscalation: false restartPolicy: OnFailure serviceAccountName: ingress-nginx-admission nodeSelector: kubernetes.io/os: linux securityContext: runAsNonRoot: true runAsUser: 2000 [root@hello ~/yaml]#
14.2启用后端，写入配置文件执行
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54[root@hello ~/yaml]# vim backend.yaml [root@hello ~/yaml]# cat backend.yaml apiVersion: apps/v1 kind: Deployment metadata: name: default-http-backend labels: app.kubernetes.io/name: default-http-backend namespace: kube-system spec: replicas: 1 selector: matchLabels: app.kubernetes.io/name: default-http-backend template: metadata: labels: app.kubernetes.io/name: default-http-backend spec: terminationGracePeriodSeconds: 60 containers: - name: default-http-backend image: registry.cn-hangzhou.aliyuncs.com/chenby/defaultbackend-amd64:1.5 livenessProbe: httpGet: path: /healthz port: 8080 scheme: HTTP initialDelaySeconds: 30 timeoutSeconds: 5 ports: - containerPort: 8080 resources: limits: cpu: 10m memory: 20Mi requests: cpu: 10m memory: 20Mi --- apiVersion: v1 kind: Service metadata: name: default-http-backend namespace: kube-system labels: app.kubernetes.io/name: default-http-backend spec: ports: - port: 80 targetPort: 8080 selector: app.kubernetes.io/name: default-http-backend [root@hello ~/yaml]#
14.3安装测试应用
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98[root@hello ~/yaml]# vim ingress-demo-app.yaml [root@hello ~/yaml]# [root@hello ~/yaml]# cat ingress-demo-app.yaml apiVersion: apps/v1 kind: Deployment metadata: name: hello-server spec: replicas: 2 selector: matchLabels: app: hello-server template: metadata: labels: app: hello-server spec: containers: - name: hello-server image: registry.cn-hangzhou.aliyuncs.com/lfy_k8s_images/hello-server ports: - containerPort: 9000 --- apiVersion: apps/v1 kind: Deployment metadata: labels: app: nginx-demo name: nginx-demo spec: replicas: 2 selector: matchLabels: app: nginx-demo template: metadata: labels: app: nginx-demo spec: containers: - image: nginx name: nginx --- apiVersion: v1 kind: Service metadata: labels: app: nginx-demo name: nginx-demo spec: selector: app: nginx-demo ports: - port: 8000 protocol: TCP targetPort: 80 --- apiVersion: v1 kind: Service metadata: labels: app: hello-server name: hello-server spec: selector: app: hello-server ports: - port: 8000 protocol: TCP targetPort: 9000 --- apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: ingress-host-bar spec: ingressClassName: nginx rules: - host: "hello.chenby.cn" http: paths: - pathType: Prefix path: "/" backend: service: name: hello-server port: number: 8000 - host: "demo.chenby.cn" http: paths: - pathType: Prefix path: "/nginx" backend: service: name: nginx-demo port: number: 8000
14.4执行部署
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10kubectl apply -f deploy.yaml kubectl apply -f backend.yaml # 等创建完成后在执行： kubectl apply -f ingress-demo-app.yaml kubectl get ingress NAME CLASS HOSTS ADDRESS PORTS AGE ingress-host-bar nginx hello.chenby.cn,demo.chenby.cn 192.168.1.12 80 7s
14.5过滤查看ingress端口
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4[root@hello ~/yaml]# kubectl get svc -A | grep ingress ingress-nginx ingress-nginx-controller NodePort 10.104.231.36 <none> 80:32636/TCP,443:30579/TCP 104s ingress-nginx ingress-nginx-controller-admission ClusterIP 10.101.85.88 <none> 443/TCP 105s [root@hello ~/yaml]#
15.IPv6测试
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88#部署应用 [root@k8s-master01 ~]# vim cby.yaml [root@k8s-master01 ~]# cat cby.yaml apiVersion: apps/v1 kind: Deployment metadata: name: chenby spec: replicas: 3 selector: matchLabels: app: chenby template: metadata: labels: app: chenby spec: containers: - name: chenby image: nginx resources: limits: memory: "128Mi" cpu: "500m" ports: - containerPort: 80 --- apiVersion: v1 kind: Service metadata: name: chenby spec: ipFamilyPolicy: PreferDualStack ipFamilies: - IPv6 - IPv4 type: NodePort selector: app: chenby ports: - port: 80 targetPort: 80 [root@k8s-master01 ~]# kubectl apply -f cby.yaml #查看端口 [root@k8s-master01 ~]# kubectl get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE chenby NodePort fd00::a29c <none> 80:30779/TCP 5s [root@k8s-master01 ~]# #使用内网访问 [root@localhost yaml]# curl -I http://[fd00::a29c] HTTP/1.1 200 OK Server: nginx/1.21.6 Date: Thu, 05 May 2022 10:20:35 GMT Content-Type: text/html Content-Length: 615 Last-Modified: Tue, 25 Jan 2022 15:03:52 GMT Connection: keep-alive ETag: "61f01158-267" Accept-Ranges: bytes [root@localhost yaml]# curl -I http://192.168.1.11:30779 HTTP/1.1 200 OK Server: nginx/1.21.6 Date: Thu, 05 May 2022 10:20:59 GMT Content-Type: text/html Content-Length: 615 Last-Modified: Tue, 25 Jan 2022 15:03:52 GMT Connection: keep-alive ETag: "61f01158-267" Accept-Ranges: bytes [root@localhost yaml]# #使用公网访问 [root@localhost yaml]# curl -I http://[2408:8207:78ca:9fa1::10]:30779 HTTP/1.1 200 OK Server: nginx/1.21.6 Date: Thu, 05 May 2022 10:20:54 GMT Content-Type: text/html Content-Length: 615 Last-Modified: Tue, 25 Jan 2022 15:03:52 GMT Connection: keep-alive ETag: "61f01158-267" Accept-Ranges: bytes
16.安装命令行自动补全功能
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4yum install bash-completion -y source /usr/share/bash-completion/bash_completion source <(kubectl completion bash) echo "source <(kubectl completion bash)" >> ~/.bashrc
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以上就是彩色飞鸟最近收集整理的关于二进制安装Kubernetes（k8s） v1.24.1 IPv4/IPv6双栈 --- Ubuntu版二进制安装Kubernetes（k8s） v1.24.1 IPv4/IPv6双栈 --- Ubuntu版本介绍1.环境2.k8s基本组件安装3.相关证书生成4.k8s系统组件配置5.高可用配置6.k8s组件配置（区别于第4点）7.TLS Bootstrapping配置8.node节点配置9.安装Calico10.安装CoreDNS11.安装Metrics Server12.集群验证13.安装d的全部内容，更多相关二进制安装Kubernetes（k8s）内容请搜索靠谱客的其他文章。
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