I am trying to create a rabbitmq cluster using docker, based on the details provided in these two links below, I have it starting up, but not sure how to start up an image/container after I have removed it again.

Can I use anything from the docker-compose.yml or am I going to have to use docker run, as it seems disconnected from the docker-compose.yml file now!?

This is the docker-compose.yml that I have written

version: "3.9"

services:
    rabbit_node_1:
        build: .
        hostname: rabbit-1
        environment:
            - RABBITMQ_ERLANG_COOKIE = "ABCDYJLFQNTHDRZEPLOZ"
            - RABBIT_NODENAME = rabbit1
            - RABBITMQ_CONFIG_FILE = /etc/rabbitmq/rabbitmq.conf
            - RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS = -rabbit log [{console,[{level,debug}]}]
        ports: 
            - 8081:15672
            - 5672:5672
            - 4369:4369
            
    rabbit_node_2:
        build: .
        hostname: rabbit-2
        # Don't start any of these until rabbit1 is up
        depends_on: 
            - rabbit1
        environment:
            - RABBITMQ_ERLANG_COOKIE = "ABCDYJLFQNTHDRZEPLOZ"
            - RABBIT_NODENAME = rabbit2
            - RABBITMQ_CONFIG_FILE = /etc/rabbitmq/rabbitmq.conf
            - RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS = -rabbit log [{console,[{level,debug}]}]
        ports: 
            - 8082:15672
            
    rabbit_node_3:
        build: .
        hostname: rabbit-3
        # Don't start any of these until rabbit1 is up
        depends_on: 
            - rabbit1
        environment:
            - RABBITMQ_ERLANG_COOKIE = "ABCDYJLFQNTHDRZEPLOZ"
            - RABBIT_NODENAME = rabbit3
            - RABBITMQ_CONFIG_FILE = /etc/rabbitmq/rabbitmq.conf
            - RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS = -rabbit log [{console,[{level,debug}]}]
        ports: 
            - 8083:15672


# docker network create rabbitmq-cluster
networks:
    default:
        name: rabbitmq-cluster

This is the Dockerfile

FROM rabbitmq:3.9-management

COPY rabbitmq.conf /etc/rabbitmq/rabbitmq.conf
COPY definitions.json /etc/rabbitmq/definitions.json
COPY .erlang.cookie /var/lib/rabbitmq/.erlang.cookie

RUN chmod 700 /var/lib/rabbitmq/.erlang.cookie

This is the rabbitmq.conf

loopback_users.guest = false
listeners.tcp.default = 5672
management.listener.port = 15672
management.listener.ssl = false
management.load_definitions = /etc/rabbitmq/definitions.json
cluster_name = cluster1
cluster_formation.peer_discovery_backend = rabbit_peer_discovery_classic_config
cluster_formation.classic_config.nodes.1 = rabbit@rabbit-1
cluster_formation.classic_config.nodes.2 = rabbit@rabbit-2
cluster_formation.classic_config.nodes.3 = rabbit@rabbit-3

finally this is the rabbitmq definitions.json file

{
    "users": [
        {
            "name": "andrew", 
            "password": "test",
            "tags": "administrator"
        }
    ], 
    "vhosts": [
        {
            "name": "/"
        }
    ], 
    "permissions": [
        {
            "user": "andrew", 
            "vhost": "/",
            "configure": ".*", 
            "write": ".*",
            "read": ".*"
        }
    ],
    "parameters": [],
    "policies": [], 
    "exchanges": [
        {
            "name": "test.exchange",
            "vhost": "/", 
            "type": "direct", 
            "durable": true, 
            "auto_delete": false, 
            "internal": false, 
            "arguments": {}
        }
    ],
    "queues": [
        {
            "name": "test.queue",
            "vhost": "/", 
            "durable": true, 
            "auto_delete": false, 
            "arguments": {}
        }
    ], 
    "bindings": [
        {
            "source": "test.exchange", 
            "vhost": "/",
            "destination": "test.queue",
            "destination_type": "queue",
            "routing_key": "",
            "arguments": {}
        }
    ]
}

CodePudding user response：

The command docker rm -f (forcibly) removes a container. You cannot start it anymore after that, because it no longer exists.

If you want to create a new container from the service rabbit_node_3 in your docker-compose file, you need to use the docker-compose command from within the directory where your docker-compose.yml resides:

docker-compose up -d rabbit_node_3

Where:

• up tells docker-compose to create containers from the named service (rabbit_node_3)
• -d tells docker-compose that you do not want to attach your terminal to stdout and stderr of the container started with this command. It would just go in the background and free your terminal for other tasks