docker stack ps
| Description | List the tasks in the stack |
|---|---|
| Usage | docker stack ps [OPTIONS] STACK |
Swarm This command works with the Swarm orchestrator.
Description
Lists the tasks that are running as part of the specified stack.
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 in the documentation.
Options
| Option | Default | Description |
|---|---|---|
-f, --filter | Filter output based on conditions provided | |
--format | Format output using a custom template: 'table': Print output in table format with column headers (default) 'table TEMPLATE': Print output in table format using the given Go template 'json': Print in JSON format 'TEMPLATE': Print output using the given Go template. Refer to https://docs.docker.com/go/formatting/ for more information about formatting output with templates | |
--no-resolve | Do not map IDs to Names | |
--no-trunc | Do not truncate output | |
-q, --quiet | Only display task IDs |
Examples
List the tasks that are part of a stack
The following command shows all the tasks that are part of the voting stack:
$ docker stack ps voting
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
xim5bcqtgk1b voting_worker.1 dockersamples/examplevotingapp_worker:latest node2 Running Running 2 minutes ago
q7yik0ks1in6 voting_result.1 dockersamples/examplevotingapp_result:before node1 Running Running 2 minutes ago
rx5yo0866nfx voting_vote.1 dockersamples/examplevotingapp_vote:before node3 Running Running 2 minutes ago
tz6j82jnwrx7 voting_db.1 postgres:9.4 node1 Running Running 2 minutes ago
w48spazhbmxc voting_redis.1 redis:alpine node2 Running Running 3 minutes ago
6jj1m02freg1 voting_visualizer.1 dockersamples/visualizer:stable node1 Running Running 2 minutes ago
kqgdmededccb voting_vote.2 dockersamples/examplevotingapp_vote:before node2 Running Running 2 minutes ago
t72q3z038jeh voting_redis.2 redis:alpine node3 Running Running 3 minutes ago
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
The id filter matches on all or a prefix of a task's ID.
$ docker stack ps -f "id=t" voting
ID NAME IMAGE NODE DESIRED STATE CURRENTSTATE ERROR PORTS
tz6j82jnwrx7 voting_db.1 postgres:9.4 node1 Running Running 14 minutes ago
t72q3z038jeh voting_redis.2 redis:alpine node3 Running Running 14 minutes ago
name
The name filter matches on task names.
$ docker stack ps -f "name=voting_redis" voting
ID NAME IMAGE NODE DESIRED STATE CURRENTSTATE ERROR PORTS
w48spazhbmxc voting_redis.1 redis:alpine node2 Running Running 17 minutes ago
t72q3z038jeh voting_redis.2 redis:alpine node3 Running Running 17 minutes ago
node
The node filter matches on a node name or a node ID.
$ docker stack ps -f "node=node1" voting
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
q7yik0ks1in6 voting_result.1 dockersamples/examplevotingapp_result:before node1 Running Running 18 minutes ago
tz6j82jnwrx7 voting_db.1 postgres:9.4 node1 Running Running 18 minutes ago
6jj1m02freg1 voting_visualizer.1 dockersamples/visualizer:stable node1 Running Running 18 minutes ago
desired-state
The desired-state filter can take the values running, shutdown, ready or accepted.
$ docker stack ps -f "desired-state=running" voting
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
xim5bcqtgk1b voting_worker.1 dockersamples/examplevotingapp_worker:latest node2 Running Running 21 minutes ago
q7yik0ks1in6 voting_result.1 dockersamples/examplevotingapp_result:before node1 Running Running 21 minutes ago
rx5yo0866nfx voting_vote.1 dockersamples/examplevotingapp_vote:before node3 Running Running 21 minutes ago
tz6j82jnwrx7 voting_db.1 postgres:9.4 node1 Running Running 21 minutes ago
w48spazhbmxc voting_redis.1 redis:alpine node2 Running Running 21 minutes ago
6jj1m02freg1 voting_visualizer.1 dockersamples/visualizer:stable node1 Running Running 21 minutes ago
kqgdmededccb voting_vote.2 dockersamples/examplevotingapp_vote:before node2 Running Running 21 minutes ago
t72q3z038jeh voting_redis.2 redis:alpine node3 Running Running 21 minutes ago
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 stack 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:
$ docker stack ps --format "{{.Name}}: {{.Image}}" voting
voting_worker.1: dockersamples/examplevotingapp_worker:latest
voting_result.1: dockersamples/examplevotingapp_result:before
voting_vote.1: dockersamples/examplevotingapp_vote:before
voting_db.1: postgres:9.4
voting_redis.1: redis:alpine
voting_visualizer.1: dockersamples/visualizer:stable
voting_vote.2: dockersamples/examplevotingapp_vote:before
voting_redis.2: redis:alpine
To list all tasks in JSON format, use the json directive:
$ docker stack ps --format json myapp
{"CurrentState":"Preparing 23 seconds ago","DesiredState":"Running","Error":"","ID":"2ufjubh79tn0","Image":"localstack/localstack:latest","Name":"myapp_localstack.1","Node":"docker-desktop","Ports":""}
{"CurrentState":"Running 20 seconds ago","DesiredState":"Running","Error":"","ID":"roee387ngf5r","Image":"redis:6.0.9-alpine3.12","Name":"myapp_redis.1","Node":"docker-desktop","Ports":""}
{"CurrentState":"Preparing 13 seconds ago","DesiredState":"Running","Error":"","ID":"yte68ouq7glh","Image":"postgres:13.2-alpine","Name":"myapp_repos-db.1","Node":"docker-desktop","Ports":""}
Do not map IDs to Names (--no-resolve)
The --no-resolve option shows IDs for task name, without mapping IDs to Names.
$ docker stack ps --no-resolve voting
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
xim5bcqtgk1b 10z9fjfqzsxnezo4hb81p8mqg.1 dockersamples/examplevotingapp_worker:latest qaqt4nrzo775jrx6detglho01 Running Running 30 minutes ago
q7yik0ks1in6 hbxltua1na7mgqjnidldv5m65.1 dockersamples/examplevotingapp_result:before mxpaef1tlh23s052erw88a4w5 Running Running 30 minutes ago
rx5yo0866nfx qyprtqw1g5nrki557i974ou1d.1 dockersamples/examplevotingapp_vote:before kanqcxfajd1r16wlnqcblobmm Running Running 31 minutes ago
tz6j82jnwrx7 122f0xxngg17z52be7xspa72x.1 postgres:9.4 mxpaef1tlh23s052erw88a4w5 Running Running 31 minutes ago
w48spazhbmxc tg61x8myx563ueo3urmn1ic6m.1 redis:alpine qaqt4nrzo775jrx6detglho01 Running Running 31 minutes ago
6jj1m02freg1 8cqlyi444kzd3panjb7edh26v.1 dockersamples/visualizer:stable mxpaef1tlh23s052erw88a4w5 Running Running 31 minutes ago
kqgdmededccb qyprtqw1g5nrki557i974ou1d.2 dockersamples/examplevotingapp_vote:before qaqt4nrzo775jrx6detglho01 Running Running 31 minutes ago
t72q3z038jeh tg61x8myx563ueo3urmn1ic6m.2 redis:alpine kanqcxfajd1r16wlnqcblobmm Running Running 31 minutes ago
Do not truncate output (--no-trunc)
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 IDs, and error-messages, as can be seen below:
$ docker stack ps --no-trunc voting
ID NAME IMAGE NODE DESIRED STATE CURREN STATE ERROR PORTS
xim5bcqtgk1bxqz91jzo4a1s5 voting_worker.1 dockersamples/examplevotingapp_worker:latest@sha256:3e4ddf59c15f432280a2c0679c4fc5a2ee5a797023c8ef0d3baf7b1385e9fed node2 Running Runnin 32 minutes ago
q7yik0ks1in6kv32gg6y6yjf7 voting_result.1 dockersamples/examplevotingapp_result:before@sha256:83b56996e930c292a6ae5187fda84dd6568a19d97cdb933720be15c757b7463 node1 Running Runnin 32 minutes ago
rx5yo0866nfxc58zf4irsss6n voting_vote.1 dockersamples/examplevotingapp_vote:before@sha256:8e64b182c87de902f2b72321c89b4af4e2b942d76d0b772532ff27ec4c6ebf6 node3 Running Runnin 32 minutes ago
tz6j82jnwrx7n2offljp3mn03 voting_db.1 postgres:9.4@sha256:6046af499eae34d2074c0b53f9a8b404716d415e4a03e68bc1d2f8064f2b027 node1 Running Runnin 32 minutes ago
w48spazhbmxcmbjfi54gs7x90 voting_redis.1 redis:alpine@sha256:9cd405cd1ec1410eaab064a1383d0d8854d1ef74a54e1e4a92fb4ec7bdc3ee7 node2 Running Runnin 32 minutes ago
6jj1m02freg1n3z9n1evrzsbl voting_visualizer.1 dockersamples/visualizer:stable@sha256:f924ad66c8e94b10baaf7bdb9cd491ef4e982a1d048a56a17e02bf5945401e5 node1 Running Runnin 32 minutes ago
kqgdmededccbhz2wuc0e9hx7g voting_vote.2 dockersamples/examplevotingapp_vote:before@sha256:8e64b182c87de902f2b72321c89b4af4e2b942d76d0b772532ff27ec4c6ebf6 node2 Running Runnin 32 minutes ago
t72q3z038jehe1wbh9gdum076 voting_redis.2 redis:alpine@sha256:9cd405cd1ec1410eaab064a1383d0d8854d1ef74a54e1e4a92fb4ec7bdc3ee7 node3 Running Runnin 32 minutes ago
Only display task IDs (-q, --quiet)
The -q or --quiet option only shows IDs of the tasks in the stack.
This example outputs all task IDs of the voting stack:
$ docker stack ps -q voting
xim5bcqtgk1b
q7yik0ks1in6
rx5yo0866nfx
tz6j82jnwrx7
w48spazhbmxc
6jj1m02freg1
kqgdmededccb
t72q3z038jeh
This option can be used to perform batch operations. For example, you can use
the task IDs as input for other commands, such as docker inspect. The
following example inspects all tasks of the voting stack:
$ docker inspect $(docker stack ps -q voting)
[
{
"ID": "xim5bcqtgk1b1gk0krq1",
"Version": {
<...>