概述
kubernetes v1.20项目之二进制扩容多Master
Master节点扮演着总控中心的角色，通过不断与工作节点上的Kubelet和kube-proxy进行通信来维护整个集群的健康工作状态。如果Master节点故障，将无法使用kubectl工具或者API做任何集群管理。
Master节点主要有三个服务kube-apiserver、kube-controller-manager和kube-scheduler，其中kube-controller-manager和kube-scheduler组件自身通过选择机制已经实现了高可用，所以Master高可用主要针对kube-apiserver组件，而该组件是以HTTP API提供服务，因此对他高可用与Web服务器类似，增加负载均衡器对其负载均衡即可，并且可水平扩容。
相关所需资源下载
链接：https://pan.baidu.com/s/1emtDOy7bzxlR_hUw6vY2GQ
提取码：a7j4
--来自百度网盘超级会员V2的分享
**部分文件需要更改ip地址或其他的配置，请改成自己的使用**
准备master2 node
主要是新添加一台服务器，作为master2。ip为192.168.100.16
| 系统类型 | cpu | men | ip |
|---|---|---|---|
| centos 7.5 | 2c | 2G | 192.168.100.16 |
部署基础环境
可以参考：kubernetes v1.20项目之部署二进制安装_系统环境配置
需要注意的是：需要更换所有的node的/etc/hosts文件
记得关闭防火墙和selinux哈
安装docker
这个master2上面的操作和master1上面的操作一样的，所以我们只需要把master上面的文件复制到master就可以了。
###master1上面操作
[root@k8s-master01 k8s]# scp /usr/bin/docker* root@192.168.100.16:/usr/bin
The authenticity of host '192.168.100.16 (192.168.100.16)' can't be established.
ECDSA key fingerprint is SHA256:o98cQWSKlxj3FYKpIcckFsAsb3+hRJ9w+DQThSbUUks.
ECDSA key fingerprint is MD5:9d:ee:d4:8e:1d:02:be:c9:ba:5f:15:51:99:3a:ed:97.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.100.16' (ECDSA) to the list of known hosts.
root@192.168.100.16's password:
docker 100% 58MB 35.4MB/s 00:01
dockerd 100% 66MB 33.8MB/s 00:01
docker-init 100% 692KB 29.0MB/s 00:00
docker-proxy 100% 2860KB 31.8MB/s 00:00
[root@k8s-master01 k8s]# scp /usr/bin/runc root@192.168.100.16:/usr/bin
root@192.168.100.16's password:
runc 100% 9376KB 47.8MB/s 00:00
[root@k8s-master01 k8s]# scp /usr/bin/containerd* root@192.168.100.16:/usr/bin
root@192.168.100.16's password:
containerd 100% 31MB 49.8MB/s 00:00
containerd-shim 100% 5872KB 49.9MB/s 00:00
[root@k8s-master01 k8s]# scp /usr/lib/systemd/system/docker.service root@192.168.100.16:/usr/lib/systemd/system
root@192.168.100.16's password:
docker.service 100% 460 187.5KB/s 00:00
[root@k8s-master01 k8s]# scp -r /etc/docker root@192.168.100.16:/etc
root@192.168.100.16's password:
daemon.json 100% 67 2.1KB/s 00:00
key.json 100% 244 14.4KB/s 00:00
###在新增的master上面启动一下docker
[root@k8s-master2 ~]# systemctl daemon-reload
[root@k8s-master2 ~]# systemctl start docker
[root@k8s-master2 ~]# systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
[root@k8s-master2 ~]# docker version
Client: Docker Engine - Community
Version: 19.03.9
API version: 1.40
Go version: go1.13.10
Git commit: 9d988398e7
Built: Fri May 15 00:22:47 2020
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 19.03.9
API version: 1.40 (minimum version 1.12)
Go version: go1.13.10
Git commit: 9d988398e7
Built: Fri May 15 00:28:17 2020
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: v1.2.13
GitCommit: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc:
Version: 1.0.0-rc10
GitCommit: dc9208a3303feef5b3839f4323d9beb36df0a9dd
docker-init:
Version: 0.18.0
GitCommit: fec3683
创建etcd证书目录
###在新增节点上面操作
[root@k8s-master2 ~]# mkdir -p /opt/etcd/ssl
拷贝文件（Master1操作）
拷贝master1上面的所有k8s文件以及etcd证书到master2
###master1上面操作
[root@k8s-master01 k8s]# scp -r /opt/kubernetes root@192.168.100.16:/opt
root@192.168.100.16's password:
kube-apiserver 100% 113MB 63.0MB/s 00:01
kube-scheduler 100% 42MB 47.4MB/s 00:00
kube-controller-manager 100% 108MB 53.8MB/s 00:02
kubelet 100% 109MB 30.2MB/s 00:03
kube-proxy 100% 38MB 28.2MB/s 00:01
token.csv 100% 84 3.0KB/s 00:00
kube-apiserver.conf 100% 1709 112.4KB/s 00:00
kube-controller-manager.conf 100% 582 319.0KB/s 00:00
kube-controller-manager.kubeconfig 100% 6344 2.9MB/s 00:00
kube-scheduler.kubeconfig 100% 6306 260.0KB/s 00:00
kube-scheduler.conf 100% 188 7.0KB/s 00:00
kubelet.conf 100% 394 23.3KB/s 00:00
kubelet-config.yml 100% 611 49.9KB/s 00:00
bootstrap.kubeconfig 100% 2168 1.4MB/s 00:00
kubelet.kubeconfig 100% 2297 175.8KB/s 00:00
kube-proxy.conf 100% 132 55.0KB/s 00:00
kube-proxy-config.yml 100% 260 117.2KB/s 00:00
kube-proxy.kubeconfig 100% 6270 2.6MB/s 00:00
ca-key.pem 100% 1679 1.0MB/s 00:00
ca.pem 100% 1359 1.1MB/s 00:00
server-key.pem 100% 1679 1.6MB/s 00:00
server.pem 100% 1635 1.2MB/s 00:00
kubelet.crt 100% 2271 13.7KB/s 00:00
kubelet.key 100% 1679 1.1MB/s 00:00
kubelet-client-2021-11-16-23-34-17.p 100% 1224 1.1MB/s 00:00
kubelet-client-current.pem 100% 1224 1.0MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 274KB 2.7MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 822 428.6KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 2023 1.3MB/s 00:00
kube-apiserver.WARNING 100% 893KB 4.2MB/s 00:00
kube-controller-manager.k8s-master01 100% 290KB 2.4MB/s 00:00
kube-scheduler.FATAL 100% 156KB 5.6MB/s 00:00
kube-controller-manager.k8s-master01 100% 276KB 1.1MB/s 00:00
kube-scheduler.ERROR 100% 1677 1.0MB/s 00:00
kube-controller-manager.k8s-master01 100% 276KB 23.1MB/s 00:00
kube-controller-manager.INFO 100% 62KB 1.8MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 110KB 4.3MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 98KB 22.2MB/s 00:00
kube-scheduler.INFO 100% 15KB 504.4KB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 97KB 26.5MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 97KB 19.1MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 822 475.2KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 1907 693.1KB/s 00:00
kubelet.WARNING 100% 59KB 402.7KB/s 00:00
kube-controller-manager.k8s-master01 100% 41KB 14.3MB/s 00:00
kubelet.ERROR 100% 57KB 976.4KB/s 00:00
kube-controller-manager.k8s-master01 100% 28KB 9.7MB/s 00:00
kube-controller-manager.WARNING 100% 3029 2.7MB/s 00:00
kube-controller-manager.k8s-master01 100% 27KB 10.4MB/s 00:00
kube-controller-manager.ERROR 100% 939 778.6KB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 52KB 17.6MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 40KB 11.9MB/s 00:00
kube-proxy.INFO 100% 17KB 271.6KB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 39KB 15.8MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 145KB 3.1MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 822 385.4KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 44KB 20.6MB/s 00:00
kube-proxy.WARNING 100% 288 173.2KB/s 00:00
kube-controller-manager.k8s-master01 100% 46KB 1.1MB/s 00:00
kube-scheduler.WARNING 100% 2487 1.6MB/s 00:00
kube-controller-manager.k8s-master01 100% 32KB 2.1MB/s 00:00
kube-apiserver.INFO 100% 2565KB 4.9MB/s 00:00
kube-controller-manager.k8s-master01 100% 32KB 4.7MB/s 00:00
kube-apiserver.ERROR 100% 146KB 461.7KB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 58KB 17.2MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 46KB 13.2MB/s 00:00
kube-proxy.ERROR 100% 1893 41.2KB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 45KB 5.3MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 7934 1.0MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 1.9MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 263 32.3KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 2.0MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 1.7MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 408KB 2.5MB/s 00:00
kubelet.INFO 100% 174KB 4.5MB/s 00:00
kubelet.k8s-master01.root.log.WARNIN 100% 59KB 25.2MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 395KB 3.9MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 395KB 3.1MB/s 00:00
kube-controller-manager.k8s-master01 100% 1736KB 15.4MB/s 00:00
kube-controller-manager.k8s-master01 100% 1559KB 7.3MB/s 00:00
kube-controller-manager.k8s-master01 100% 1517KB 3.7MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 189 68.0KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 12KB 6.1MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 5.9MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 7.3MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 8.1MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 4532 32.5KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 12KB 5.2MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 8.4MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 5.0MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 7109 4.8MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 8828 5.2MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 949.1KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 189 94.2KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 9.1MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 6.5MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 7747 3.0MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 189 11.3KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 189 87.2KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 189 113.3KB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 15KB 7.3MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 2565KB 66.5MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 146KB 24.5MB/s 00:00
kube-apiserver.k8s-master01.root.log 100% 893KB 63.2MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 163KB 7.8MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 167KB 1.9MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 145KB 6.1MB/s 00:00
kubelet.k8s-master01.root.log.INFO.2 100% 57MB 9.5MB/s 00:05
kubelet.k8s-master01.root.log.WARNIN 100% 56MB 8.8MB/s 00:06
kubelet.k8s-master01.root.log.ERROR. 100% 31MB 6.1MB/s 00:05
kube-proxy.k8s-master01.root.log.INF 100% 21KB 325.3KB/s 00:00
kube-proxy.k8s-master01.root.log.WAR 100% 7104 3.0MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 144KB 5.2MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 143KB 2.6MB/s 00:00
kube-controller-manager.k8s-master01 100% 1172KB 23.3MB/s 00:00
kube-controller-manager.FATAL 100% 1459KB 27.1MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 172KB 2.5MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 157KB 9.7MB/s 00:00
kube-controller-manager.k8s-master01 100% 1563KB 10.9MB/s 00:00
kube-controller-manager.k8s-master01 100% 1462KB 28.8MB/s 00:00
kube-controller-manager.k8s-master01 100% 1459KB 17.0MB/s 00:00
kube-proxy.k8s-master01.root.log.ERR 100% 7005 103.4KB/s 00:00
kube-proxy.k8s-master01.root.log.INF 100% 11KB 347.2KB/s 00:00
kube-proxy.k8s-master01.root.log.WAR 100% 1992 134.2KB/s 00:00
kube-proxy.k8s-master01.root.log.ERR 100% 1893 1.4MB/s 00:00
kube-proxy.k8s-master01.root.log.INF 100% 17KB 10.3MB/s 00:00
kubelet.k8s-master01.root.log.INFO.2 100% 175KB 28.5MB/s 00:00
kube-proxy.k8s-master01.root.log.WAR 100% 288 191.3KB/s 00:00
kubelet.k8s-master01.root.log.ERROR. 100% 58KB 27.4MB/s 00:00
kube-controller-manager.k8s-master01 100% 1459KB 61.5MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 156KB 1.6MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 156KB 40.0MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 15KB 6.0MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 2487 1.7MB/s 00:00
kube-controller-manager.k8s-master01 100% 62KB 34.6MB/s 00:00
kube-controller-manager.k8s-master01 100% 3029 2.2MB/s 00:00
kube-scheduler.k8s-master01.root.log 100% 1677 1.2MB/s 00:00
kube-controller-manager.k8s-master01 100% 939 836.9KB/s 00:00
[root@k8s-master01 k8s]# scp -r /opt/etcd/ssl root@192.168.100.16:/opt/etcd
root@192.168.100.16's password:
ca-key.pem 100% 1679 68.7KB/s 00:00
ca.pem 100% 1265 561.0KB/s 00:00
server-key.pem 100% 1679 1.3MB/s 00:00
server.pem 100% 1346 751.0KB/s 00:00
[root@k8s-master01 k8s]# scp /usr/lib/systemd/system/kube* root@192.168.100.16:/usr/lib/systemd/system
root@192.168.100.16's password:
kube-apiserver.service 100% 286 15.2KB/s 00:00
kube-controller-manager.service 100% 321 158.0KB/s 00:00
kubelet.service 100% 246 12.4KB/s 00:00
kube-proxy.service 100% 253 174.8KB/s 00:00
kube-scheduler.service 100% 285 203.1KB/s 00:00
[root@k8s-master01 k8s]# scp /usr/bin/kubectl root@192.168.100.16:/usr/bin
root@192.168.100.16's password:
kubectl 100% 38MB 17.8MB/s 00:02
[root@k8s-master01 k8s]# scp -r ~/.kube root@192.168.100.16:~
root@192.168.100.16's password:
config 100% 6276 400.0KB/s 00:00
e48f6ae5064536c3f40004357bbd77b9 100% 423 16.3KB/s 00:00
7a501d24ef53df20bb8693e690458cd3 100% 5019 261.0KB/s 00:00
bb15ed9eb3ae7217e960c74d4514ed74 100% 939 100.8KB/s 00:00
60289862ba0f945260379690fd76cc89 100% 6355 170.3KB/s 00:00
504b5152d4353f06c61a52ee603f2482 100% 990 402.9KB/s 00:00
17f4e99618cf81977c7dda9dabe49514 100% 1218 767.6KB/s 00:00
bedc9584c7819bf9cc7702b44dd8b5e5 100% 611 428.7KB/s 00:00
b104fd963724c9f83f8540e3df4d598a 100% 944 411.3KB/s 00:00
692e43b9c8cee4bfa351dc4427fd9565 100% 828 355.9KB/s 00:00
f6f6f4498cdbd9db7c02f3fd6d54c2c7 100% 724 460.4KB/s 00:00
dd922d91c9d4fb2ff5efca985ccc8dc9 100% 1105 749.2KB/s 00:00
9e6a5ed2f8f6b4f1857f704e2e1fd9f9 100% 924 430.0KB/s 00:00
f4e2928d9581e74096023ba63f7da649 100% 1346 170.7KB/s 00:00
fa469a2142dc3774045d1a73b1b2f00e 100% 1206 728.1KB/s 00:00
ca079a27d2ba7a91641da3c43abe167b 100% 693 300.7KB/s 00:00
369d866d31580f09cbdc00c0d4b6eeea 100% 941 656.9KB/s 00:00
d734e513561cb35b47d567e4a5c3877d 100% 823 278.1KB/s 00:00
9137ac3ec1cd12bec4277981b59038ed 100% 936 569.8KB/s 00:00
482f44ba3989195736866d9078c4809f 100% 575 390.1KB/s 00:00
18e7520ddc6d89423f07e79d6f59e03a 100% 1201 573.7KB/s 00:00
7b89b837bf73496a548316a6e870ffb5 100% 583 385.9KB/s 00:00
f78adb7e89e5912fb66b1b2a8edcfc2e 100% 746 433.2KB/s 00:00
f2ba8903f98ce19f723bea28394d5a3a 100% 741 393.5KB/s 00:00
183b2ac8939f5541948cfff31d383927 100% 593 363.5KB/s 00:00
2026188586212c64d1c643de60be9ff5 100% 790 477.1KB/s 00:00
30cafa72b8a5dc11daca66229eb5a513 100% 683 409.3KB/s 00:00
ba39d8284b5df0e047138090f612d82a 100% 795 526.5KB/s 00:00
0d8c8ebbca01506b8dbccee84fcd53c8 100% 588 218.8KB/s 00:00
ca0fce889495043f97db2c358a3f2678 100% 616 318.8KB/s 00:00
0781673ec7e512d4e953ea89f6ad51e6 100% 488 288.6KB/s 00:00
67744128ea32f04cfbc2e360014b2c9c 100% 594 237.4KB/s 00:00
ca3c006fb2a41aa8539aaf57ba68453b 100% 877 475.7KB/s 00:00
fabe7c6cbf0c1817104ea82fe622d83d 100% 882 42.7KB/s 00:00
0e5082fb19604105046e29553190b24b 100% 795 419.2KB/s 00:00
e81c9f7d92ac9ab99dd5b395af66b01d 100% 1150 879.4KB/s 00:00
701186d54f0ff777b64b8da976259b83 100% 2483 1.4MB/s 00:00
de619c7889ab3b33fac6078869b60216 100% 580 279.9KB/s 00:00
244770df30fb6b0abaca97b6e140ebeb 100% 493 304.6KB/s 00:00
acdf19969c69d10ba33814697cf41d21 100% 589 308.5KB/s 00:00
2c36c5e890ffcc1c030142ee9ecc1312 100% 3582KB 18.5MB/s 00:00
465ce81c014e083c84ca76ab3a906bba 100% 3719 449.7KB/s 00:00
servergroups.json 100% 4853 4.7MB/s 00:00
serverresources.json 100% 653 432.6KB/s 00:00
serverresources.json 100% 658 658.1KB/s 00:00
serverresources.json 100% 6089 4.9MB/s 00:00
serverresources.json 100% 704 439.7KB/s 00:00
serverresources.json 100% 932 860.1KB/s 00:00
serverresources.json 100% 1059 536.3KB/s 00:00
serverresources.json 100% 325 249.8KB/s 00:00
serverresources.json 100% 330 237.5KB/s 00:00
serverresources.json 100% 542 308.9KB/s 00:00
serverresources.json 100% 537 320.4KB/s 00:00
serverresources.json 100% 438 540.5KB/s 00:00
serverresources.json 100% 397 485.8KB/s 00:00
serverresources.json 100% 819 619.1KB/s 00:00
serverresources.json 100% 2196 1.8MB/s 00:00
serverresources.json 100% 638 633.8KB/s 00:00
serverresources.json 100% 864 627.3KB/s 00:00
serverresources.json 100% 920 682.7KB/s 00:00
serverresources.json 100% 915 479.2KB/s 00:00
serverresources.json 100% 425 403.7KB/s 00:00
serverresources.json 100% 655 445.3KB/s 00:00
serverresources.json 100% 650 619.9KB/s 00:00
serverresources.json 100% 289 278.7KB/s 00:00
serverresources.json 100% 294 109.3KB/s 00:00
serverresources.json 100% 297 313.1KB/s 00:00
serverresources.json 100% 302 23.1KB/s 00:00
serverresources.json 100% 460 500.4KB/s 00:00
serverresources.json 100% 455 369.0KB/s 00:00
serverresources.json 100% 307 281.6KB/s 00:00
serverresources.json 100% 504 360.7KB/s 00:00
serverresources.json 100% 509 325.1KB/s 00:00
serverresources.json 100% 509 495.7KB/s 00:00
serverresources.json 100% 202 167.8KB/s 00:00
serverresources.json 100% 207 143.4KB/s 00:00
serverresources.json 100% 308 211.2KB/s 00:00
serverresources.json 100% 303 252.3KB/s 00:00
serverresources.json 100% 591 412.3KB/s 00:00
serverresources.json 100% 596 294.3KB/s 00:00
serverresources.json 100% 3432 2.8MB/s 00:00
删除证书文件
##在master2上面操作
[root@k8s-master2 ~]# rm -f /opt/kubernetes/cfg/kubelet.kubeconfig
[root@k8s-master2 ~]# rm -f /opt/kubernetes/ssl/kubelet*
修改配置文件IP和主机名
修改apiserver、kubelet和kube-proxy配置文件为本地IP
###在master2上面操作
[root@k8s-master2 ~]# vi /opt/kubernetes/cfg/kube-apiserver.conf
KUBE_APISERVER_OPTS="--logtostderr=false
--v=2
--log-dir=/opt/kubernetes/logs
--etcd-servers=https://192.168.100.13:2379,https://192.168.100.14:2379,https://192.168.100.15:2379
--bind-address=192.168.100.16 ##修改这一行
--secure-port=6443
--advertise-address=192.168.100.16 ##修改这一行
--allow-privileged=true
--service-cluster-ip-range=10.0.0.0/24
--enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota,NodeRestriction
--authorization-mode=RBAC,Node
--enable-bootstrap-token-auth=true
--token-auth-file=/opt/kubernetes/cfg/token.csv
--service-node-port-range=30000-32767
--kubelet-client-certificate=/opt/kubernetes/ssl/server.pem
--kubelet-client-key=/opt/kubernetes/ssl/server-key.pem
--tls-cert-file=/opt/kubernetes/ssl/server.pem
--tls-private-key-file=/opt/kubernetes/ssl/server-key.pem
--client-ca-file=/opt/kubernetes/ssl/ca.pem
--service-account-key-file=/opt/kubernetes/ssl/ca-key.pem
--service-account-issuer=api
--service-account-signing-key-file=/opt/kubernetes/ssl/server-key.pem
--etcd-cafile=/opt/etcd/ssl/ca.pem
--etcd-certfile=/opt/etcd/ssl/server.pem
--etcd-keyfile=/opt/etcd/ssl/server-key.pem
--requestheader-client-ca-file=/opt/kubernetes/ssl/ca.pem
--proxy-client-cert-file=/opt/kubernetes/ssl/server.pem
--proxy-client-key-file=/opt/kubernetes/ssl/server-key.pem
--requestheader-allowed-names=kubernetes
--requestheader-extra-headers-prefix=X-Remote-Extra-
-- INSERT --
[root@k8s-master2 ~]# vim /opt/kubernetes/cfg/kube-controller-manager.kubeconfig
apiVersion: v1
clusters:
- cluster:
- cluster:
certificate-authority-data: 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
server: https://192.168.100.16:6443 ##主要修改这一行
name: kubernetes
contexts:
- context:
cluster: kubernetes
-- 插入 --
[root@k8s-master2 ~]# vi /opt/kubernetes/cfg/kube-scheduler.kubeconfig
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: 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
server: https://192.168.100.16:6443 ##主要修改这一行
name: kubernetes
contexts:
-- INSERT --
[root@k8s-master2 ~]# vi /opt/kubernetes/cfg/kubelet.conf
KUBELET_OPTS="--logtostderr=false
--v=2
--log-dir=/opt/kubernetes/logs
--hostname-override=k8s-master2 ##主要修改这一行
--network-plugin=cni
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig
--bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig
--config=/opt/kubernetes/cfg/kubelet-config.yml
--cert-dir=/opt/kubernetes/ssl
--pod-infra-container-image=lizhenliang/pause-amd64:3.0"
~
~
~
[root@k8s-master2 ~]# vi /opt/kubernetes/cfg/kube-proxy-config.yml
kind: KubeProxyConfiguration
apiVersion: kubeproxy.config.k8s.io/v1alpha1
bindAddress: 0.0.0.0
metricsBindAddress: 0.0.0.0:10249
clientConnection:
kubeconfig: /opt/kubernetes/cfg/kube-proxy.kubeconfig
hostnameOverride: k8s-master2 ##主要修改这一行
clusterCIDR: 10.244.0.0/16
~
[root@k8s-master2 ~]# vi ~/.kube/config
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: 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
server: https://192.168.100.16:6443 ##主要修改这一行
name: kubernetes
contexts:
-- INSERT --
启动设置开机启动
###master2上面操作
[root@k8s-master2 ~]# systemctl daemon-reload
[root@k8s-master2 ~]# systemctl start kube-apiserver kube-controller-manager kube-scheduler kubelet kube-proxy
[root@k8s-master2 ~]# systemctl enable kube-apiserver kube-controller-manager kube-scheduler kubelet kube-proxy
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-apiserver.service to /usr/lib/systemd/system/kube-apiserver.service.
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-controller-manager.service to /usr/lib/systemd/system/kube-controller-manager.service.
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-scheduler.service to /usr/lib/systemd/system/kube-scheduler.service.
Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service.
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.service to /usr/lib/systemd/system/kube-proxy.service.
查看集群状态
###master1上面操作
[root@k8s-master01 k8s]# kubectl get cs
Warning: v1 ComponentStatus is deprecated in v1.19+
NAME STATUS MESSAGE ERROR
etcd-2 Healthy {"health":"true"}
etcd-1 Healthy {"health":"true"}
etcd-0 Healthy {"health":"true"}
scheduler Healthy ok
controller-manager Healthy ok
# 查看证书请求
[root@k8s-master01 k8s]# kubectl get csr
NAME AGE SIGNERNAME REQUESTOR CONDITION
node-csr-U5GnB9VorCdEn-Z-Xlt6jJRhhIlep1s-b99u9ZBdVgw 3m29s kubernetes.io/kube-apiserver-client-kubelet kubelet-bootstrap Pending
# 授权请求
[root@k8s-master01 k8s]# kubectl certificate approve node-csr-U5GnB9VorCdEn-Z-Xlt6jJRhhIlep1s-b99u9ZBdVgw
certificatesigningrequest.certificates.k8s.io/node-csr-U5GnB9VorCdEn-Z-Xlt6jJRhhIlep1s-b99u9ZBdVgw approved
# 查看Node
[root@k8s-master01 k8s]# kubectl get node
NAME STATUS ROLES AGE VERSION
k8s-master1 Ready <none> 15h v1.20.5
k8s-master2 NotReady <none> 62s v1.20.5
k8s-node01 Ready <none> 13h v1.20.5
###出现notready的原因是master2这个node节点没有关闭防火墙和selinux
[root@k8s-master01 k8s]# kubectl get node
NAME STATUS ROLES AGE VERSION
k8s-master1 Ready <none> 15h v1.20.5
k8s-master2 Ready <none> 9m27s v1.20.5
k8s-node01 Ready <none> 14h v1.20.5
##### 至此，扩容新的master节点成功
结束语
加油和坚持，一起努力吧少年
上一篇：kubernetes v1.20项目之二进制安装部署Dashboard和CoreDNS（亲测）
下一篇：kubernetes v1.20项目之二进制安装部署master的高可用（待完善）
最后
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