--- title: "service inspect" description: "The service inspect command description and usage" keywords: "service, inspect" --- # service inspect ```Markdown Usage: docker service inspect [OPTIONS] SERVICE [SERVICE...] Display detailed information on one or more services Options: -f, --format string Format the output using the given Go template --help Print usage --pretty Print the information in a human friendly format ``` ## Description Inspects the specified service. By default, this renders all results in a JSON array. If a format is specified, the given template will be executed for each result. Go's [text/template](http://golang.org/pkg/text/template/) package describes all the details of the format. > **Note**: This is a cluster management command, and must be executed on a swarm > manager node. To learn about managers and workers, refer to the [Swarm mode > section](https://docs.docker.com/engine/swarm/) in the documentation. ## Examples ### Inspect 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: ```none $ 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 }, ... } ] ``` ### Formatting 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 On failure: pause Max failure ratio: 0 ContainerSpec: Image: nginx:alpine Resources: Networks: net1 Endpoint Mode: vip Ports: PublishedPort = 4443 Protocol = tcp TargetPort = 443 PublishMode = ingress ``` You can also use `--format pretty` for the same effect. #### Find 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 $ docker service inspect --format='{{.Spec.Mode.Replicated.Replicas}}' redis 10 ``` ## Related commands * [service create](service_create.md) * [service logs](service_logs.md) * [service ls](service_ls.md) * [service ps](service_ps.md) * [service rm](service_rm.md) * [service rollback](service_rollback.md) * [service scale](service_scale.md) * [service update](service_update.md)