docker - 使用 docker compose 与 docker swarm 建立 Redis 集群

Question

我正在学习 docker 及其所有优点，例如 swarm 和 compose。我的目的是在docker swarm中创建一个Redis集群。

这是我的撰写文件 -

version: '3'

services:
  redis:
    image: redis:alpine
    command: ["redis-server","--appendonly yes","--cluster-enabled yes","--cluster-node-timeout 60000","--cluster-require-full-coverage no"]
    deploy:
      replicas: 5
      restart_policy:
        condition: on-failure
    ports:
      - 6379:6379
      - 16379:16379

networks:
  host:
    external: true

如果我添加 network: - host ，则没有任何容器启动，如果我删除它，则容器启动，但当我尝试连接时，它会抛出类似 CLUSTERDOWN Hash slot 的错误未提供服务。

规范 -

Windows 10

Docker Swarm Nodes -
2 Virtual Box VMs running Alpine Linux 3.7.0 with two networks

VirtualBox VM Network - 
eth0 - NAT
eth1 - VirtualBox Host-only network

Docker running inside the above VMs - 
17.12.1-ce

Answer 1

这似乎对我有用，网络配置来自 here :

version: '3.6'

services:
  redis:
    image: redis:5.0.3
    command:
      - "redis-server"
      - "--cluster-enabled yes"
      - "--cluster-config-file nodes.conf"
      - "--cluster-node-timeout 5000"
      - "--appendonly yes"
    deploy:
      mode: global
      restart_policy:
        condition: on-failure
    networks:
      hostnet: {}

networks:
  hostnet:
    external: true
    name: host

然后运行例如:echo yes | docker run -i --rm --entrypoint redis-cli redis:5.0.3 --cluster create 1.2.3.4{1,2,3}:6379 --cluster-replicas 0

明显替换你的IP。