Removing Services

If we stop a running container, Registrator will notice it and also remove the service from Consul. We can see this by stopping the container running in Node1:

$docker stop d628843108c9

From the logs on Registrator we can see that it will remove the service from Consul

$docker logs 5ad2c811770b
2016/05/13 14:35:15 Starting registrator v7 ...
2016/05/13 14:35:15 Using consul adapter: consul://172.16.20.132:8500
2016/05/13 14:35:15 Connecting to backend (0/0)
2016/05/13 14:35:15 consul: current leader  172.16.20.132:8300
2016/05/13 14:35:15 Listening for Docker events ...
2016/05/13 14:35:15 Syncing services on 2 containers
2016/05/13 14:35:15 ignored: 5ad2c811770b no published ports
2016/05/13 15:32:46 added: c09f762d3283 registrator:service1:5000
2016/05/13 15:53:08 removed: d628843108c9 registrator:service2:5000

Now we are left with two instance of the service.

$curl $HOST_IP:8500/v1/catalog/service/python-micro-service | python -mjson.tool
    {
        "Address": "172.16.20.94",
        "Node": "node3",
        "ServiceAddress": "",
        "ServiceID": "registrator:service2:5000",
        "ServiceName": "python-micro-service",
        "ServicePort": 32768,
        "ServiceTags": null
    },
    {
        "Address": "172.16.20.184",
        "Node": "node2",
        "ServiceAddress": "",
        "ServiceID": "registrator:service2:5000",
        "ServiceName": "python-micro-service",
        "ServicePort": 32769,
        "ServiceTags": null
    }