etcd集群装置和单机装置

etcd介绍

etcd 是基于 Raft 的分布式 key-value 存储系统，由 CoreOS 开发，罕用于服务发现、共享配置以及并发管制（如 leader 选举、分布式锁等）。kubernetes 应用 etcd 存储所有运行数据。etcd基于Go语言实现。

etcd作为服务发现零碎，有以下特点：

  • 简略：装置配置简略，而且提供了HTTP API进行交互，应用也很简略
  • 平安：反对SSL证书验证
  • 疾速：依据官网提供的benchmark数据，单实例反对每秒2k+读操作
  • 牢靠：采纳raft算法，实现分布式系统数据的可用性和一致性

官网地址: http://www.etcd.cn/

源代码地址: https://github.com/coreos/etcd

1.下载安装

curl -L https://github.com/coreos/etcd/releases/download/v3.0.6/etcd-v3.0.6-linux-amd64.tar.gz -o etcd-v3.0.6-linux-amd64.tar.gztar xzvf etcd-v3.0.6-linux-amd64.tar.gzmv etcd-v3.0.6-linux-amd64 etcdcd etcd./etcd --version

2.单机启动

etcd --listen-client-urls http://0.0.0.0:2379 --advertise-client-urls http://10.240.30.30:2379 &

3.集群启动

别离在三台机器启动etcd

cd /data/apps/etcd/$ nohup /data/apps/etcd/etcd --name etcd0 --initial-advertise-peer-urls http://10.240.30.9:2380 \  --listen-peer-urls http://10.240.30.9:2380 \  --listen-client-urls http://10.240.30.9:2379,http://127.0.0.1:2379 \  --advertise-client-urls http://10.240.30.9:2379 \  --initial-cluster-token etcd-cluster-1 \  --initial-cluster etcd0=http://10.240.30.9:2380,etcd1=http://10.240.30.10:2380,etcd2=http://10.240.30.11:2380 \  --initial-cluster-state new &  cd /data/apps/etcd/$ nohup /data/apps/etcd/etcd --name etcd1 --initial-advertise-peer-urls http://10.240.30.10:2380 \  --listen-peer-urls http://10.240.30.10:2380 \  --listen-client-urls http://10.240.30.10:2379,http://127.0.0.1:2379 \  --advertise-client-urls http://10.240.30.10:2379 \  --initial-cluster-token etcd-cluster-1 \  --initial-cluster etcd0=http://10.240.30.9:2380,etcd1=http://10.240.30.10:2380,etcd2=http://10.240.30.11:2380 \  --initial-cluster-state new &cd /data/apps/etcd/$ nohup /data/apps/etcd/etcd --name etcd2 --initial-advertise-peer-urls http://10.240.30.11:2380 \  --listen-peer-urls http://10.240.30.11:2380 \  --listen-client-urls http://10.240.30.11:2379,http://127.0.0.1:2379 \  --advertise-client-urls http://10.240.30.11:2379 \  --initial-cluster-token etcd-cluster-1 \  --initial-cluster etcd0=http://10.240.30.9:2380,etcd1=http://10.240.30.10:2380,etcd2=http://10.240.30.11:2380 \  --initial-cluster-state new &

参考链接：
https://skyao.gitbooks.io/lea...

4.ETCD WEBUI

git clone https://github.com/henszey/etcd-browser.gitcd etcd-browsersudo docker build -t etcd-browser .sudo docker run --rm --name etcd-browser -p 0.0.0.0:8000:8000 --env ETCD_HOST=10.240.30.10 --env ETCD_PORT=2379 etcd-browser &

浏览器拜访: http://10.240.30.10:8000