linux 安装 yum etcd,CentOS7安装etcd和flannel

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概述

环境简介:

CentOS Linux release 7.4.1708 (Core)

Linux 3.10.0-693.el7.x86_64

3台linux服务器

172.16.10.100

172.16.10.101

172.16.10.102

软件版本:

etcd-v3.3.5-linux-amd64

flannel-0.7.1-3.el7.x86_64

docker-1.13.1-63.git94f4240.el7.centos.x86_64

etcd安装及配置

是一个键值存储仓库，却没有重视官方定义的后半句，用于配置共享和服务发现。

实际上，etcd作为一个受到Zookeeper与doozer启发而催生的项目，除了拥有与之类似的功能外，更具有以下4个特点{![引自Docker官方文档]}。

简单：基于HTTP+JSON的API让你用curl命令就可以轻松使用。

安全：可选SSL客户认证机制。

快速：每个实例每秒支持一千次写操作。

可信：使用Raft算法充分实现了分布式。

安装etcd

下载链接:https://github.com/coreos/etcd/releases/

wget https://github.com/coreos/etcd/releases/download/v3.3.5/etcd-v3.3.5-linux-amd64.tar.gz

tar -xf etcd-v3.3.5-linux-amd64.tar.gz

cd etcd-v3.3.5-linux-amd64

#将etcd与etcdctl copy到/usr/local/bin

cp etcd etcdctl /usr/local/bin

#添加环境变量

echo "PATH=$PATH:/usr/local/bin" >> /etc/profile

wgethttps://github.com/coreos/etcd/releases/download/v3.3.5/etcd-v3.3.5-linux-amd64.tar.gz

tar-xfetcd-v3.3.5-linux-amd64.tar.gz

cdetcd-v3.3.5-linux-amd64

#将etcd与etcdctl copy到/usr/local/bin

cpetcdetcdctl/usr/local/bin

#添加环境变量

echo"PATH=$PATH:/usr/local/bin">>/etc/profile

#编写etcd配置文件

vi /etc/etcd/etcd.conf

ETCD_DATA_DIR=/var/lib/etcd

ETCD_NAME=etcd100

ETCD_INITIAL_CLUSTER=etcd100=http://172.16.10.100:2380,etcd101=http://172.16.10.101:2380,etcd102=http://172.16.10.102:2380

ETCD_INITIAL_CLUSTER_STATE=new

ETCD_LISTEN_PEER_URLS=http://172.16.10.100:2380

ETCD_INITIAL_ADVERTISE_PEER_URLS=http://172.16.10.100:2380

ETCD_ADVERTISE_CLIENT_URLS=http://172.16.10.100:2379

ETCD_LISTEN_CLIENT_URLS=http://172.16.10.100:2379,http://127.0.0.1:2379

GOMAXPROCS=$(nproc)

vi/etc/etcd/etcd.conf

ETCD_DATA_DIR=/var/lib/etcd

ETCD_NAME=etcd100

ETCD_INITIAL_CLUSTER=etcd100=http://172.16.10.100:2380,etcd101=http://172.16.10.101:2380,etcd102=http://172.16.10.102:2380

ETCD_INITIAL_CLUSTER_STATE=new

ETCD_LISTEN_PEER_URLS=http://172.16.10.100:2380

ETCD_INITIAL_ADVERTISE_PEER_URLS=http://172.16.10.100:2380

ETCD_ADVERTISE_CLIENT_URLS=http://172.16.10.100:2379

ETCD_LISTEN_CLIENT_URLS=http://172.16.10.100:2379,http://127.0.0.1:2379

GOMAXPROCS=$(nproc)

#将配置传给其他两台主机并根据主机IP修改以下变量:ETCD_NAME,ETCD_LISTEN_PEER_URLS,ETCD_INITIAL_ADVERTISE_PEER_URLS,ETCD_ADVERTISE_CLIENT_URLS,ETCD_LISTEN_CLIENT_URLS.

#配置systemd管理控制启动程序

[Unit]

Description=Etcd Server

Documentation=https://github.com/coreos/etcd

After=network.target

[Service]

User=root

Type=simple

EnvironmentFile=-/etc/etcd/etcd.conf

ExecStart=/usr/local/bin/etcd

Restart=on-failure

RestartSec=3s

LimitNOFILE=65536

[Install]

WantedBy=multi-user.target

[Unit]

Description=EtcdServer

Documentation=https://github.com/coreos/etcd

After=network.target

[Service]

User=root

Type=simple

EnvironmentFile=-/etc/etcd/etcd.conf

ExecStart=/usr/local/bin/etcd

Restart=on-failure

RestartSec=3s

LimitNOFILE=65536

[Install]

WantedBy=multi-user.target

#分别在三台启动etcd并测试

systemctl start etcd

systemctl enable etcd

#测试程序

etcdctl cluster-health

etcdctl mk /test

etcdctl ls /

systemctlstartetcd

systemctlenableetcd

#测试程序

etcdctlcluster-health

etcdctlmk/test

etcdctlls/

#至此etcd集群已经部署完毕,从集群任意一台均可查到etcd配置

docker与flannel安装及配置

yum install docker flannel -y

#修改/etc/sysconfig/flanneld配置

vi etc/sysconfig/flanneld

# Flanneld configuration options

# etcd url location. Point this to the server where etcd runs

FLANNEL_ETCD_ENDPOINTS="http://172.16.10.100:2379,http://172.16.10.101:2379,http://172.16.10.102:2379"

# etcd config key. This is the configuration key that flannel queries

# For address range assignment

FLANNEL_ETCD_PREFIX="/atomic.io/network"

# Any additional options that you want to pass

#FLANNEL_OPTIONS=""

#在etcd中添加网络信息

etcdctl mk /atomic.io/network/config '{"Network":"192.167.0.0/16", "SubnetMin": "192.167.1.0", "SubnetMax": "192.167.254.0"}'

yuminstalldockerflannel-y

#修改/etc/sysconfig/flanneld配置

vietc/sysconfig/flanneld

# Flanneld configuration options

# etcd url location. Point this to the server where etcd runs

FLANNEL_ETCD_ENDPOINTS="http://172.16.10.100:2379,http://172.16.10.101:2379,http://172.16.10.102:2379"

# etcd config key. This is the configuration key that flannel queries

# For address range assignment

FLANNEL_ETCD_PREFIX="/atomic.io/network"

# Any additional options that you want to pass

#FLANNEL_OPTIONS=""

#在etcd中添加网络信息

etcdctlmk/atomic.io/network/config'{"Network":"192.167.0.0/16", "SubnetMin": "192.167.1.0", "SubnetMax": "192.167.254.0"}'

#分别启动flannel和docker

systemctl start flanneld

systemctl start docker

systemctl enable flanneld

systemctl enable docker

#使用ifconfig查看网络,会看到flannel0以及docker0两个网卡启动并且分配了预设值的网段,3台设备的物理网段到虚拟网段可以完全互联互通

docker0: flags=4099 mtu 1500

inet 192.167.46.1 netmask 255.255.255.0 broadcast 0.0.0.0

ether 02:42:83:3f:3e:d5 txqueuelen 0 (Ethernet)

RX packets 0 bytes 0 (0.0 B)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 0 bytes 0 (0.0 B)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

ens192: flags=4163 mtu 1500

inet 172.16.10.102 netmask 255.255.255.0 broadcast 172.16.10.255

inet6 fe80::250:56ff:feba:49a5 prefixlen 64 scopeid 0x20

ether 00:50:56:ba:49:a5 txqueuelen 1000 (Ethernet)

RX packets 3511949 bytes 363753229 (346.9 MiB)

RX errors 0 dropped 40 overruns 0 frame 0

TX packets 3454048 bytes 287758009 (274.4 MiB)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

flannel0: flags=4305 mtu 1472

inet 192.167.46.0 netmask 255.255.0.0 destination 192.167.46.0

inet6 fe80::2089:87b0:329d:68ec prefixlen 64 scopeid 0x20

unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 500 (UNSPEC)

RX packets 2 bytes 168 (168.0 B)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 5 bytes 312 (312.0 B)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

systemctlstartflanneld

systemctlstartdocker

systemctlenableflanneld

systemctlenabledocker

#使用ifconfig查看网络,会看到flannel0以及docker0两个网卡启动并且分配了预设值的网段,3台设备的物理网段到虚拟网段可以完全互联互通

docker0:flags=4099mtu1500

inet192.167.46.1netmask255.255.255.0broadcast0.0.0.0

ether02:42:83:3f:3e:d5txqueuelen0(Ethernet)

RXpackets0bytes0(0.0B)

RXerrors0dropped0overruns0frame0

TXpackets0bytes0(0.0B)

TXerrors0dropped0overruns0carrier0collisions0

ens192:flags=4163mtu1500

inet172.16.10.102netmask255.255.255.0broadcast172.16.10.255

inet6fe80::250:56ff:feba:49a5prefixlen64scopeid0x20

ether00:50:56:ba:49:a5txqueuelen1000(Ethernet)

RXpackets3511949bytes363753229(346.9MiB)

RXerrors0dropped40overruns0frame0

TXpackets3454048bytes287758009(274.4MiB)

TXerrors0dropped0overruns0carrier0collisions0

flannel0:flags=4305mtu1472

inet192.167.46.0netmask255.255.0.0destination192.167.46.0

inet6fe80::2089:87b0:329d:68ecprefixlen64scopeid0x20

unspec00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00txqueuelen500(UNSPEC)

RXpackets2bytes168(168.0B)

RXerrors0dropped0overruns0frame0

TXpackets5bytes312(312.0B)

TXerrors0dropped0overruns0carrier0collisions0

最后

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本文分类：linux 安装 yum etcd
浏览次数：60 次浏览
发布日期：2024-01-20 23:16:03
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