--- datafolder: engine-cli datafile: docker_service_inspect title: docker service inspect --- {% include cli.md %} ## Examples ### Inspecting a service by name or ID You can inspect a service, either by its *name*, or *ID* For example, given the following service; ```bash $ docker service ls ID NAME MODE REPLICAS IMAGE dmu1ept4cxcf redis replicated 3/3 redis:3.0.6 ``` Both `docker service inspect redis`, and `docker service inspect dmu1ept4cxcf` produce the same result: ```bash $ docker service inspect redis [ { "ID": "dmu1ept4cxcfe8k8lhtux3ro3", "Version": { "Index": 12 }, "CreatedAt": "2016-06-17T18:44:02.558012087Z", "UpdatedAt": "2016-06-17T18:44:02.558012087Z", "Spec": { "Name": "redis", "TaskTemplate": { "ContainerSpec": { "Image": "redis:3.0.6" }, "Resources": { "Limits": {}, "Reservations": {} }, "RestartPolicy": { "Condition": "any", "MaxAttempts": 0 }, "Placement": {} }, "Mode": { "Replicated": { "Replicas": 1 } }, "UpdateConfig": {}, "EndpointSpec": { "Mode": "vip" } }, "Endpoint": { "Spec": {} } } ] ``` ```bash $ docker service inspect dmu1ept4cxcf [ { "ID": "dmu1ept4cxcfe8k8lhtux3ro3", "Version": { "Index": 12 }, ... } ] ``` ### Inspect a service using pretty-print You can print the inspect output in a human-readable format instead of the default JSON output, by using the `--pretty` option: ```bash $ docker service inspect --pretty frontend ID: c8wgl7q4ndfd52ni6qftkvnnp Name: frontend Labels: - org.example.projectname=demo-app Service Mode: REPLICATED Replicas: 5 Placement: UpdateConfig: Parallelism: 0 ContainerSpec: Image: nginx:alpine Resources: Endpoint Mode: vip Ports: Name = Protocol = tcp TargetPort = 443 PublishedPort = 4443 ``` You can also use `--format pretty` for the same effect. ### Finding the number of tasks running as part of a service The `--format` option can be used to obtain specific information about a service. For example, the following command outputs the number of replicas of the "redis" service. ```bash {% raw %} $ docker service inspect --format='{{.Spec.Mode.Replicated.Replicas}}' redis 10 {% endraw %} ```