ETCD单机部署与ETCD集群部署

ETCD单机部署与ETCD集群部署

搭建单机etcd

安装epel源

wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm rpm -ivh epel-release-latest-7.noarch.rpm

安装etcd

yum install etcd

配置hosts

vim /etc/hosts etcd-25-23 10.39.25.23

配置etcd文件

[root@etcd-25-23 etcd]# cat etcd.conf # [member] ETCD_NAME=default #etcd服务名字 ETCD_DATA_DIR="/var/lib/etcd/default.etcd" #etcd数据目录 #ETCD_WAL_DIR="" #ETCD_SNAPSHOT_COUNT="10000" #ETCD_HEARTBEAT_INTERVAL="100" #ETCD_ELECTION_TIMEOUT="1000" ETCD_LISTEN_PEER_URLS="ttp://10.39.25.23:2379,http://localhost:2380" ETCD_LISTEN_CLIENT_URLS="#客户端访问的地址和端口 #ETCD_MAX_SNAPSHOTS="5" #ETCD_MAX_WALS="5" #ETCD_CORS=""

启动/查看etcd

systemctl restart etcd systemctl status etcd

查看etcd数据目录

tree /var/lib/etcd/default.etcd/ /var/lib/etcd/default.etcd/ └── member ├── snap │   └── db └── wal ├── 0000000000000000-0000000000000000.wal └── 0.tmp

etcd单机搭建完成

搭建etcd集群

安装epel源

wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm rpm -ivh epel-release-latest-7.noarch.rpm

安装etcd

yum install etcd

配置hosts

vim /etc/hosts etcd-25-23 10.39.25.23 etcd-25-24 10.39.25.24 etcd-25-25 10.39.25.25

修改配置

10.39.25.23的配置

vim /etc/etcd/etcd.conf ETCD_NAME=etcd-25-23 ETCD_DATA_DIR="/var/lib/etcd/etcd-cluster" ETCD_LISTEN_PEER_URLS="http://10.39.25.23:2380" ETCD_LISTEN_CLIENT_URLS="http://10.39.25.23:2379,http://127.0.0.1:2379" ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.39.25.23:2380" ETCD_INITIAL_CLUSTER="etcd-25-23=http://10.39.25.23:2380,etcd-25-24=http://10.39.25.24:2380,etcd-25-25=http://10.39.25.25:2380" ETCD_INITIAL_CLUSTER_STATE="new" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_ADVERTISE_CLIENT_URLS="http://10.39.25.23:2379" systemctl start etcd systemctl satus etcd

10.39.25.25的配置

vim /etc/etcd/etcd.conf ETCD_NAME=etcd-25-25 ETCD_DATA_DIR="/var/lib/etcd/etcd-cluster" ETCD_LISTEN_PEER_URLS="http://10.39.25.25:2380" ETCD_LISTEN_CLIENT_URLS="http://10.39.25.25:2379,http://127.0.0.1:2379" ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.39.25.25:2380" ETCD_INITIAL_CLUSTER="etcd-25-23=http://10.39.25.23:2380,etcd-25-24=http://10.39.25.24:2380,etcd-25-25=http://10.39.25.25:2380" ETCD_INITIAL_CLUSTER_STATE="new" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_ADVERTISE_CLIENT_URLS="http://10.39.25.25:2379" systemctl start etcd systemctl satus etcd

10.39.25.24的配置 vim /etc/etcd/etcd.conf ETCD_NAME=etcd-25-24 ETCD_DATA_DIR="/var/lib/etcd/etcd-cluster" ETCD_LISTEN_PEER_URLS="http://10.39.25.24:2380" ETCD_LISTEN_CLIENT_URLS="http://10.39.25.24:2379,http://127.0.0.1:2379" ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.39.25.24:2380" ETCD_INITIAL_CLUSTER="etcd-25-23=http://10.39.25.23:2380,etcd-25-24=http://10.39.25.24:2380,etcd-25-25=http://10.39.25.25:2380" ETCD_INITIAL_CLUSTER_STATE="new" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_ADVERTISE_CLIENT_URLS="http://10.39.25.24:2379" systemctl start etcd systemctl satus etcd

查看etcd集群节点

etcdctl member list 7e5e9b85b854c4f6: name=etcd-25-23 peerURLs=clientURLs=isLeader=true c25ca32dd7fbc99f: name=etcd-25-24 peerURLs=clientURLs=isLeader=false de67b2618c148f0d: name=etcd-25-25 peerURLs=clientURLs=isLeader=false

查看集群状态

etcdctl cluster-health member 7e5e9b85b854c4f6 is healthy: got healthy result from http://10.39.25.23:2379 member c20ca32dd7fbc99f is healthy: got healthy result from http://10.39.25.24:2379 member de67b2618c148f0d is healthy: got healthy result from http://10.39.25.25:2379 cluster is healthy

测试:在23上创建一个TianRandai的目录

[root@etcd-25-23 ~]# etcdctl mkdir TianRandai

在24与25上查看是是否存在

[root@etcd-25-24 ~]# etcdctl ls /TianRandai [root@etcd-25-25 ~]# etcdctl ls /TianRandai

集群搭建完毕

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