部署Etcd

Deploy etcd

概述

PX使用Etcd做集群发现。生产系统需要搭建专用的Etcd集群。道云提供px-etcd.sh脚本用于创建和维护专用的Etcd集群

生产场景中，px-etcd.sh脚本必须在道云工程师的协助下使用

最佳实践

• 使用3节点的Etcd高可用；大规模PX集群可以使用5节点的Etcd高可用。

• 使用PX的数据网络作为PX-Etcd的Client网络和Peer网路。

• 条件允许，可以把Etcd部署在非PX的节点上

步骤

px-etcd.sh在pxtools工具集中。如何获取pxtools请参考章节”环境准备“。

以下示例中，三台主机的PX存储网络的IP分别是： 10.10.176.161， 10.10.176.162， 10.10.176.163

1. 部署第一个节点

$ bash pxtools/etcd/px-etcd.sh create --ip 10.10.176.161

$ /opt/pwx-etcd/bin/runc exec portworx-etcd etcdctl cluster-health
member 4afad2f557455f4 is healthy: got healthy result from http://10.10.176.161:19019
cluster is healthy

2. 部署第二个节点

$ bash pxtools/etcd/px-etcd.sh join --ip 10.10.176.161

$ /opt/pwx-etcd/bin/runc exec portworx-etcd etcdctl cluster-health
member 4afad2f557455f4 is healthy: got healthy result from http://10.10.176.161:19019
member ac13a77dc0affc68 is healthy: got healthy result from http://10.10.176.162:19019
cluster is healthy

3. 部署第三个节点

$ bash pxtools/etcd/px-etcd.sh join --ip 10.10.176.161

$ /opt/pwx-etcd/bin/runc exec portworx-etcd etcdctl cluster-health
member 4afad2f557455f4 is healthy: got healthy result from http://10.10.176.161:19019
member 642c48a9ddf6fd84 is healthy: got healthy result from http://10.10.176.163:19019
member ac13a77dc0affc68 is healthy: got healthy result from http://10.10.176.162:19019