之前用的阿里云容器服务,但由于acsrouting的路由错乱问题,被逼上自建docker swarm的梁山。今天尝试自己搭建docker swarm,竟然轻松搞定,简单的超乎想象。

以下是实际搭建操作步骤:

1. 创建集群

# docker swarm init --advertise-addr 10.251.242.231
Swarm initialized: current node (m9dfl7r9wo1e9jxsp3oe5du3x) is now a manager. To add a worker to this swarm, run the following command: docker swarm join --token xxx 10.251.242.231:2377 To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.

主:10.251.242.231 是 docker 主机的内网IP地址

2. docker info 查看刚刚创建的集群信息

Swarm: active
NodeID: m9dfl7r9wo1e9jxsp3oe5du3x
Is Manager: true
ClusterID: j01wzizw7gy0ck95p1d7a4pmv
Managers: 1
Nodes: 1
Orchestration:
Task History Retention Limit: 5

3. docker node ls 查看节点信息

ID                            HOSTNAME               STATUS              AVAILABILITY        MANAGER STATUS
m9dfl7r9wo1e9jxsp3oe5du3t * swarm-websites-node1 Ready Active Leader

4. 创建用于部署应用容器的网络

# docker network create --driver=overlay --attachable cnblogs

5. 创建用于部署Docker Flow Proxy容器的网络(Docker Flow Proxy支持根据主机名将请求转发至对应的应用容器)

docker network create --driver overlay proxy

6. 查看刚刚创建的网络

# docker network ls
NETWORK ID NAME DRIVER SCOPE
rl96kcw8ytpa cnblogs overlay swarm
61kbxtvnivkx proxy overlay swarm

7. 部署 Docker Flow Proxy stack

7.1 下载 docker-compose-stack.yml 文件

# curl -o docker-compose-stack.yml \
https://raw.githubusercontent.com/\
vfarcic/docker-flow-proxy/master/docker-compose-stack.yml

7.2 部署 stack

# docker stack deploy -c docker-compose-stack.yml proxy

8. 编写示例应用 openapi 的 docker-compose-stack.yml

version: '3.2'
services:
api:
image: open-api:latest
deploy:
replicas: 2
update_config:
delay: 5s
labels:
- com.df.notify=true
- com.df.distribute=true
- com.df.serviceDomain=api.cnblogs.com
- com.df.port=80
networks:
- cnblogs
- proxy
networks:
cnblogs:
external: true
proxy:
external: true

9. 部署示例应用的 stack

docker stack deploy -c docker-compose-stack.yml openapi

10. 部署完成后可以通过 http://api.cnblogs.com 访问运行在 openapi_api service 中的站点

11. 添加机器进集群作为节点

docker swarm join --token xxxxxxxxx IP:2377

12. 将节点提升为manager

docker node promote ID或HOSTNAME

【参考资料】

05-04 07:23