--- title: "service ps" description: "The service ps command description and usage" keywords: "service, tasks, ps" aliases: ["/engine/reference/commandline/service_tasks/"] --- # service ps ```Markdown Usage: docker service ps [OPTIONS] SERVICE [SERVICE...] List the tasks of one or more services Options: -f, --filter filter Filter output based on conditions provided --format string Pretty-print tasks using a Go template --help Print usage --no-resolve Do not map IDs to Names --no-trunc Do not truncate output -q, --quiet Only display task IDs ``` ## Description Lists the tasks that are running as part of the specified services. > **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 ### List the tasks that are part of a service The following command shows all the tasks that are part of the `redis` service: ```console $ docker service ps redis ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS 0qihejybwf1x redis.1 redis:3.0.5 manager1 Running Running 8 seconds bk658fpbex0d redis.2 redis:3.0.5 worker2 Running Running 9 seconds 5ls5s5fldaqg redis.3 redis:3.0.5 worker1 Running Running 9 seconds 8ryt076polmc redis.4 redis:3.0.5 worker1 Running Running 9 seconds 1x0v8yomsncd redis.5 redis:3.0.5 manager1 Running Running 8 seconds 71v7je3el7rr redis.6 redis:3.0.5 worker2 Running Running 9 seconds 4l3zm9b7tfr7 redis.7 redis:3.0.5 worker2 Running Running 9 seconds 9tfpyixiy2i7 redis.8 redis:3.0.5 worker1 Running Running 9 seconds 3w1wu13yupln redis.9 redis:3.0.5 manager1 Running Running 8 seconds 8eaxrb2fqpbn redis.10 redis:3.0.5 manager1 Running Running 8 seconds ``` In addition to _running_ tasks, the output also shows the task history. For example, after updating the service to use the `redis:3.0.6` image, the output may look like this: ```console $ docker service ps redis ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS 50qe8lfnxaxk redis.1 redis:3.0.6 manager1 Running Running 6 seconds ago ky2re9oz86r9 \_ redis.1 redis:3.0.5 manager1 Shutdown Shutdown 8 seconds ago 3s46te2nzl4i redis.2 redis:3.0.6 worker2 Running Running less than a second ago nvjljf7rmor4 \_ redis.2 redis:3.0.6 worker2 Shutdown Rejected 23 seconds ago "No such image: redis@sha256:6…" vtiuz2fpc0yb \_ redis.2 redis:3.0.5 worker2 Shutdown Shutdown 1 second ago jnarweeha8x4 redis.3 redis:3.0.6 worker1 Running Running 3 seconds ago vs448yca2nz4 \_ redis.3 redis:3.0.5 worker1 Shutdown Shutdown 4 seconds ago jf1i992619ir redis.4 redis:3.0.6 worker1 Running Running 10 seconds ago blkttv7zs8ee \_ redis.4 redis:3.0.5 worker1 Shutdown Shutdown 11 seconds ago ``` The number of items in the task history is determined by the `--task-history-limit` option that was set when initializing the swarm. You can change the task history retention limit using the [`docker swarm update`](swarm_update.md) command. When deploying a service, docker resolves the digest for the service's image, and pins the service to that digest. The digest is not shown by default, but is printed if `--no-trunc` is used. The `--no-trunc` option also shows the non-truncated task ID, and error-messages, as can be seen below; ```console $ docker service ps --no-trunc redis ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS 50qe8lfnxaxksi9w2a704wkp7 redis.1 redis:3.0.6@sha256:6a692a76c2081888b589e26e6ec835743119fe453d67ecf03df7de5b73d69842 manager1 Running Running 5 minutes ago ky2re9oz86r9556i2szb8a8af \_ redis.1 redis:3.0.5@sha256:f8829e00d95672c48c60f468329d6693c4bdd28d1f057e755f8ba8b40008682e worker2 Shutdown Shutdown 5 minutes ago bk658fpbex0d57cqcwoe3jthu redis.2 redis:3.0.6@sha256:6a692a76c2081888b589e26e6ec835743119fe453d67ecf03df7de5b73d69842 worker2 Running Running 5 seconds nvjljf7rmor4htv7l8rwcx7i7 \_ redis.2 redis:3.0.6@sha256:6a692a76c2081888b589e26e6ec835743119fe453d67ecf03df7de5b73d69842 worker2 Shutdown Rejected 5 minutes ago "No such image: redis@sha256:6a692a76c2081888b589e26e6ec835743119fe453d67ecf03df7de5b73d69842" ``` ### Filtering (--filter) The filtering flag (`-f` or `--filter`) format is a `key=value` pair. If there is more than one filter, then pass multiple flags (e.g. `--filter "foo=bar" --filter "bif=baz"`). Multiple filter flags are combined as an `OR` filter. For example, `-f name=redis.1 -f name=redis.7` returns both `redis.1` and `redis.7` tasks. The currently supported filters are: * [id](#id) * [name](#name) * [node](#node) * [desired-state](#desired-state) #### id The `id` filter matches on all or a prefix of a task's ID. ```console $ docker service ps -f "id=8" redis ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS 8ryt076polmc redis.4 redis:3.0.6 worker1 Running Running 9 seconds 8eaxrb2fqpbn redis.10 redis:3.0.6 manager1 Running Running 8 seconds ``` #### name The `name` filter matches on task names. ```console $ docker service ps -f "name=redis.1" redis ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS qihejybwf1x5 redis.1 redis:3.0.6 manager1 Running Running 8 seconds ``` #### node The `node` filter matches on a node name or a node ID. ```console $ docker service ps -f "node=manager1" redis ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS 0qihejybwf1x redis.1 redis:3.0.6 manager1 Running Running 8 seconds 1x0v8yomsncd redis.5 redis:3.0.6 manager1 Running Running 8 seconds 3w1wu13yupln redis.9 redis:3.0.6 manager1 Running Running 8 seconds 8eaxrb2fqpbn redis.10 redis:3.0.6 manager1 Running Running 8 seconds ``` #### desired-state The `desired-state` filter can take the values `running`, `shutdown`, or `accepted`. ### Format the output (--format) The formatting options (`--format`) pretty-prints tasks output using a Go template. Valid placeholders for the Go template are listed below: | Placeholder | Description | |-----------------|------------------------------------------------------------------| | `.ID` | Task ID | | `.Name` | Task name | | `.Image` | Task image | | `.Node` | Node ID | | `.DesiredState` | Desired state of the task (`running`, `shutdown`, or `accepted`) | | `.CurrentState` | Current state of the task | | `.Error` | Error | | `.Ports` | Task published ports | When using the `--format` option, the `service ps` command will either output the data exactly as the template declares or, when using the `table` directive, includes column headers as well. The following example uses a template without headers and outputs the `Name` and `Image` entries separated by a colon (`:`) for all tasks: ```console $ docker service ps --format "{{.Name}}: {{.Image}}" top top.1: busybox top.2: busybox top.3: busybox ``` ## Related commands * [service create](service_create.md) * [service inspect](service_inspect.md) * [service logs](service_logs.md) * [service ls](service_ls.md) * [service rm](service_rm.md) * [service rollback](service_rollback.md) * [service scale](service_scale.md) * [service update](service_update.md)