配置Etcd集群
简单的配置Etcd集群3.0 3个节点IP 192.168.134.140 192.168.134.141 192.168.134.142
3.1 下载etcd curl -Lhttps://github.com/coreos/etcd/releases/download/v2.3.6/etcd-v2.3.6-linux-amd64.tar.gz -o etcd-v2.3.6-linux-amd64.tar.gz
3.2 tar xzvf etcd-v2.3.6-linux-amd64.tar.gz && cd etcd-v2.3.6-linux-amd64
3.3 mv etcd etcdctl /bin
3.4 新建目录 mkdir -p /data/etcddata (存放etcd数据)
3.5 在192.168.134.140 上执行命令
etcd -name etcd0 -initial-advertise-peer-urls http://192.168.134.140:2380 -listen-peer-urls http://192.168.134.140:2380 -listen-client-urls http://192.168.134.140:2379,http://127.0.0.1:2379 -advertise-client-urls http://192.168.134.140:2379 -initial-cluster-token my-etcd-cluster -initial-cluster etcd0=http://192.168.134.140:2380,etcd1=http://192.168.134.141:2380,etcd2=http://192.168.134.142:2380 --data-dir=/data/etcddata -initial-cluster-state new &3.6 在192.168.134.141 上执行命令
etcd -name etcd1 -initial-advertise-peer-urls http://192.168.134.141:2380 -listen-peer-urls http://192.168.134.141:2380 -listen-client-urls http://192.168.134.141:2379,http://127.0.0.1:2379 -advertise-client-urls http://192.168.134.141:2379 -initial-cluster-token my-etcd-cluster -initial-cluster etcd0=http://192.168.134.140:2380,etcd1=http://192.168.134.141:2380,etcd2=http://192.168.134.142:2380 --data-dir=/data/etcddata -initial-cluster-state new &3.7 在192.168.134.142 上执行命令
etcd -name etcd2 -initial-advertise-peer-urls http://192.168.134.142:2380 -listen-peer-urls http://192.168.134.142:2380 -listen-client-urls http://192.168.134.142:2379,http://127.0.0.1:2379 -advertise-client-urls http://192.168.134.142:2379 -initial-cluster-token my-etcd-cluster -initial-cluster etcd0=http://192.168.134.140:2380,etcd1=http://192.168.134.141:2380,etcd2=http://192.168.134.142:2380 --data-dir=/data/etcddata -initial-cluster-state new &
注:启动上面3个命令屏幕会刷日志，关掉终端，重新开个ssh连接 ,使用命令检查 etcd集群是否正常 etcdctl cluster-health 正常情况
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