Step 1
Mac下安裝etcd
brew install etcd
執行
etcd --version
確保安裝成功
Step 2
使用docker-machine創建3個docker主機
docker-machine create --driver virtualbox box0
docker-machine create --driver virtualbox box1
docker-machine create --driver virtualbox box2
確認生成成功,記住每個docker主機的ip地址
docker-machine ls
Step 3
創建三個目錄node1,node2,node3在下一步會將主機的node1,node2,node3目錄通過--volume=nodex:/etcd-data 掛載到相應的container。
使用docker-machine ssh登入三個docker主機
docker-machine ssh box0
Step 4
在三個docker主機上啓動etcd。
box0主機上執行
docker run --rm --name etcd \
-p 2379:2379 \
-p 2380:2380 \
--volume=node1:/etcd-data \
quay.io/coreos/etcd \
/usr/local/bin/etcd \
--data-dir=/etcd-data --name node1 \
--initial-advertise-peer-urls http://192.168.99.106:2380 --listen-peer-urls http://0.0.0.0:2380 \
--advertise-client-urls http://192.168.99.106:2379 --listen-client-urls http://0.0.0.0:2379 \
--initial-cluster-state new \
--initial-cluster-token docker-etcd \
--initial-cluster node1=http://192.168.99.106:2380,node2=http://192.168.99.107:2380,node3=http://192.168.99.108:2380
box1主機上執行
docker run --rm --name etcd \
-p 2379:2379 \
-p 2380:2380 \
--volume=node2:/etcd-data \
quay.io/coreos/etcd \
/usr/local/bin/etcd \
--data-dir=/etcd-data --name node2 \
--initial-advertise-peer-urls http://192.168.99.107:2380 --listen-peer-urls http://0.0.0.0:2380 \
--advertise-client-urls http://192.168.99.107:2379 --listen-client-urls http://0.0.0.0:2379 \
--initial-cluster-state new \
--initial-cluster-token docker-etcd \
--initial-cluster node1=http://192.168.99.106:2380,node2=http://192.168.99.107:2380,node3=http://192.168.99.108:2380
box2主機上執行
docker run --rm --name etcd \
-p 2379:2379 \
-p 2380:2380 \
--volume=node3:/etcd-data \
quay.io/coreos/etcd \
/usr/local/bin/etcd \
--data-dir=/etcd-data --name node3 \
--initial-advertise-peer-urls http://192.168.99.108:2380 --listen-peer-urls http://0.0.0.0:2380 \
--advertise-client-urls http://192.168.99.108:2379 --listen-client-urls http://0.0.0.0:2379 \
--initial-cluster-state new \
--initial-cluster-token docker-etcd \
--initial-cluster node1=http://192.168.99.106:2380,node2=http://192.168.99.107:2380,node3=http://192.168.99.108:2380
PS:將ip地址換成各自通過docker-machine ls命令看到的ip
正常執行後應該通過docker ps能夠看到
Step 5
查看集羣成員狀態
在任意一臺docker主機上進入docker容器
docker exec -it 49a0eeb7e3df /bin/sh
執行etcdctl member list可查看到所有成員的狀態
Step 6
確認
訪問任何一臺docker主機的ip
curl http://192.168.99.106:2379/v2/members
設定鍵值
curl http://192.168.99.106:2379/v2/keys/test -XPUT -d value="test value"
取得鍵值
curl http://192.168.99.106:2379/v2/keys/test