其實關於集羣網上說的方案已經很多了,尤其是官網,只是這裏我個人只有一個虛擬機,在開發環境下建議用docker-compose來搭建etcd集羣.
1.拉取etcd鏡像
docker pull quay.io/coreos/etcd
2.編輯docker-compose.yaml文件:
version: '2'
networks:
byfn:
services:
etcd1:
image: quay.io/coreos/etcd
container_name: etcd1
command: etcd -name etcd1 -advertise-client-urls http://0.0.0.0:2379 -listen-client-urls http://0.0.0.0:2379 -listen-peer-urls http://0.0.0.0:2380 -initial-cluster-token etcd-cluster -initial-cluster "etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380" -initial-cluster-state new
ports:
- "12379:2379"
- 2380
networks:
- byfn
etcd2:
image: quay.io/coreos/etcd
container_name: etcd2
command: etcd -name etcd2 -advertise-client-urls http://0.0.0.0:2379 -listen-client-urls http://0.0.0.0:2379 -listen-peer-urls http://0.0.0.0:2380 -initial-cluster-token etcd-cluster -initial-cluster "etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380" -initial-cluster-state new
ports:
- "22379:2379"
- 2380
networks:
- byfn
etcd3:
image: quay.io/coreos/etcd
container_name: etcd3
command: etcd -name etcd3 -advertise-client-urls http://0.0.0.0:2379 -listen-client-urls http://0.0.0.0:2379 -listen-peer-urls http://0.0.0.0:2380 -initial-cluster-token etcd-cluster -initial-cluster "etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380" -initial-cluster-state new
ports:
- "32379:2379"
- 2380
networks:
- byfn
3.啓動服務驗證:
docker-compose up
#docker-compose down
curl -L http://127.0.0.1:12379/v2/members #查看etcd1的數據
curl -L http://127.0.0.1:22379/v2/members #查看etcd2的數據
curl -L http://127.0.0.1:32379/v2/members #查看etcd3的數據
#也可以用命令行工具etcdctl
docker exec -t etcd1 etcdctl member list
#我們往一個node上上傳數據,在其他node上就能下載到
curl -L http://127.0.0.1:12379/v2/keys/foo -XPUT -d value="Hello foo"
curl -L http://127.0.0.1:12379/v2/keys/foo1/foo1 -XPUT -d value="Hello foo1"
curl -L http://127.0.0.1:12379/v2/keys/foo2/foo2 -XPUT -d value="Hello foo2"
curl -L http://127.0.0.1:12379/v2/keys/foo2/foo21/foo21 -XPUT -d value="Hello foo21"
curl -L http://127.0.0.1:22379/v2/keys/foo
curl -L http://127.0.0.1:22379/v2/keys/foo2
curl -L http://127.0.0.1:22379/v2/keys/foo2?recursive=true
參考: