docker swarm 多服务部署

以你之姓@ 2022-11-30 01:32 222阅读 0赞

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### docker swarm 多服务部署 ###

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**docker stack**

**命令格式：docker stack \[options\] command**

Usage:	docker stack [OPTIONS] COMMAND
    
    Manage Docker stacks
    
    Options:
          --orchestrator string   Orchestrator to use (swarm|kubernetes|all)
    
    Commands:
      deploy      Deploy a new stack or update an existing stack
      ls          List stacks
      ps          List the tasks in the stack
      rm          Remove one or more stacks
      services    List the services in the stack
    
    Run 'docker stack COMMAND --help' for more information on a command.

**deploy：**部署服务

**ls：**列出stack

**ps：**列出stack中的task

**rm：**删除statck

**services：**列出stack中的service

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**docker stack deploy**

**命令格式：docker stack deploy \[options\] stack\_name**

Usage:	docker stack deploy [OPTIONS] STACK
    
    Deploy a new stack or update an existing stack
    
    Aliases:
      deploy, up
    
    Options:
          --bundle-file string     Path to a Distributed Application Bundle file
      -c, --compose-file strings   Path to a Compose file, or "-" to read from stdin
          --orchestrator string    Orchestrator to use (swarm|kubernetes|all)
          --prune                  Prune services that are no longer referenced
          --resolve-image string   Query the registry to resolve image digest and supported platforms ("always"|"changed"|"never") (default "always")
          --with-registry-auth     Send registry authentication details to Swarm agents

**-c、--compose-file：**docker-compose.yml文件

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**示例**

**docker-compose.yml**

version: "3.8"
    services:
      redis:
        image: redis
        ports:
          - "6379:6379"
        deploy:
          replicas: 2
    
      centos:
        image: centos
        deploy:
          replicas: 1
          placement:
            constraints: [node.role == manager]

**创建 stack：docker stack deploy -c "docker-compose.yml" my\_stack**

[root@centos docker-swarm]# docker stack deploy -c "docker-compose.yml" my_stack
    Creating network my_stack_default
    Creating service my_stack_redis
    Creating service my_stack_centos

**查看 stack：docker stack ls**

[root@centos docker-swarm]# docker stack ls
    NAME                SERVICES            ORCHESTRATOR
    my_stack            2                   Swarm

**查看 stack service：docker stack services my\_stack**

[root@centos docker-swarm]# docker stack services my_stack
    ID                  NAME                MODE                REPLICAS            IMAGE               PORTS
    bzehlgwfyo1n        my_stack_redis      replicated          2/2                 redis:latest        *:6379->6379/tcp
    hwf6ehuuoecv        my_stack_centos     replicated          0/1                 centos:latest

**查看 stack task：docker stack ps my\_stack**

[root@centos docker-swarm]# docker stack ps my_stack
    ID                  NAME                    IMAGE               NODE                DESIRED STATE       CURRENT STATE             ERROR               PORTS
    x40zkn6s5zed        my_stack_centos.1       centos:latest       centos              Ready               Ready 2 seconds ago                           
    vd75rp19jzsq         \_ my_stack_centos.1   centos:latest       centos              Shutdown            Complete 2 seconds ago                        
    s11ans38uk3q         \_ my_stack_centos.1   centos:latest       centos              Shutdown            Complete 8 seconds ago                        
    u4mxzswyalgk         \_ my_stack_centos.1   centos:latest       centos              Shutdown            Complete 14 seconds ago                       
    e3wiganrxpq8         \_ my_stack_centos.1   centos:latest       centos              Shutdown            Complete 19 seconds ago                       
    hwbveakpi3wq        my_stack_redis.1        redis:latest        centos              Running             Running 12 minutes ago                        
    s196ohqsflra        my_stack_redis.2        redis:latest        centos              Running             Running 12 minutes ago