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Rather than conflict with the unexposed task model, change the names of the object-oriented task display to `docker <object> ps`. The command works identically to `docker service tasks`. This change is superficial. This provides a more sensical docker experience while not trampling on the task model that may be introduced as a top-level command at a later date. The following is an example of the display using `docker service ps` with a service named `condescending_cori`: ``` $ docker service ps condescending_cori ID NAME SERVICE IMAGE LAST STATE DESIRED STATE NODE e2cd9vqb62qjk38lw65uoffd2 condescending_cori.1 condescending_cori alpine Running 13 minutes ago Running 6c6d232a5d0e ``` The following shows the output for the node on which the command is running: ```console $ docker node ps self ID NAME SERVICE IMAGE LAST STATE DESIRED STATE NODE b1tpbi43k1ibevg2e94bmqo0s mad_kalam.1 mad_kalam apline Accepted 2 seconds ago Accepted 6c6d232a5d0e e2cd9vqb62qjk38lw65uoffd2 condescending_cori.1 condescending_cori alpine Running 12 minutes ago Running 6c6d232a5d0e 4x609m5o0qyn0kgpzvf0ad8x5 furious_davinci.1 furious_davinci redis Running 32 minutes ago Running 6c6d232a5d0e ``` Signed-off-by: Stephen J Day <stephen.day@docker.com>
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service ps
Usage: docker service ps [OPTIONS] SERVICE
List the tasks of a service
Options:
-a, --all Display all tasks
-f, --filter value Filter output based on conditions provided
--help Print usage
--no-resolve Do not map IDs to Names
Lists the tasks that are running as part of the specified service. This command has to be run targeting a manager node.
Examples
Listing the tasks that are part of a service
The following command shows all the tasks that are part of the redis service:
$ docker service ps redis
ID NAME SERVICE IMAGE LAST STATE DESIRED STATE NODE
0qihejybwf1x5vqi8lgzlgnpq redis.1 redis redis:3.0.6 Running 8 seconds Running manager1
bk658fpbex0d57cqcwoe3jthu redis.2 redis redis:3.0.6 Running 9 seconds Running worker2
5ls5s5fldaqg37s9pwayjecrf redis.3 redis redis:3.0.6 Running 9 seconds Running worker1
8ryt076polmclyihzx67zsssj redis.4 redis redis:3.0.6 Running 9 seconds Running worker1
1x0v8yomsncd6sbvfn0ph6ogc redis.5 redis redis:3.0.6 Running 8 seconds Running manager1
71v7je3el7rrw0osfywzs0lko redis.6 redis redis:3.0.6 Running 9 seconds Running worker2
4l3zm9b7tfr7cedaik8roxq6r redis.7 redis redis:3.0.6 Running 9 seconds Running worker2
9tfpyixiy2i74ad9uqmzp1q6o redis.8 redis redis:3.0.6 Running 9 seconds Running worker1
3w1wu13yuplna8ri3fx47iwad redis.9 redis redis:3.0.6 Running 8 seconds Running manager1
8eaxrb2fqpbnv9x30vr06i6vt redis.10 redis redis:3.0.6 Running 8 seconds Running manager1
Filtering
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
The id filter matches on all or a prefix of a task's ID.
$ docker service ps -f "id=8" redis
ID NAME SERVICE IMAGE LAST STATE DESIRED STATE NODE
8ryt076polmclyihzx67zsssj redis.4 redis redis:3.0.6 Running 4 minutes Running worker1
8eaxrb2fqpbnv9x30vr06i6vt redis.10 redis redis:3.0.6 Running 4 minutes Running manager1
Name
The name filter matches on task names.
$ docker service ps -f "name=redis.1" redis
ID NAME SERVICE IMAGE DESIRED STATE LAST STATE NODE
0qihejybwf1x5vqi8lgzlgnpq redis.1 redis redis:3.0.6 Running Running 8 seconds manager1
desired-state
The desired-state filter can take the values running and accepted.