docker stack ps
| 描述 | 列出堆疊中的任務 |
|---|---|
| 用法 | docker stack ps [OPTIONS] STACK |
Swarm 此命令適用於 Swarm 編排器。
描述
列出作為指定堆疊一部分執行的任務。
注意這是一個叢集管理命令，必須在 Swarm 管理器節點上執行。要了解管理器和工作器，請參閱文件中的Swarm 模式部分。
選項
| 選項 | 預設值 | 描述 |
|---|---|---|
-f, --filter | 根據提供的條件篩選輸出 | |
--format | 使用自定義模板格式化輸出 'table': 以帶列標題的表格格式列印輸出（預設） 'table TEMPLATE': 使用給定的 Go 模板以表格格式列印輸出 'json': 以 JSON 格式列印 'TEMPLATE': 使用給定的 Go 模板列印輸出。 有關使用模板格式化輸出的更多資訊，請參閱https://docs.docker.net.tw/go/formatting/ | |
--no-resolve | 不將 ID 對映到名稱 | |
--no-trunc | 不截斷輸出 | |
-q, --quiet | 僅顯示任務 ID |
示例
列出作為堆疊一部分的任務
以下命令顯示了作為 `voting` 堆疊一部分的所有任務
$ 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
過濾 (--filter)
過濾標誌 (-f 或 --filter) 的格式為 key=value 對。如果有多個過濾器，則傳遞多個標誌（例如 --filter "foo=bar" --filter "bif=baz"）。多個過濾標誌作為 OR 過濾器組合。例如，-f name=redis.1 -f name=redis.7 返回 redis.1 和 redis.7 任務。
目前支援的過濾器有：
id
id 過濾器匹配任務 ID 的全部或字首。
$ 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
name 過濾器匹配任務名稱。
$ 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
節點
node 過濾器匹配節點名稱或節點 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
desired-state 過濾器可以取值 running、shutdown、ready 或 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
格式化輸出 (--format)
格式化選項 (--format) 使用 Go 模板美觀地列印任務輸出。
Go 模板的有效佔位符如下所示
| 佔位符 | 描述 |
|---|---|
.ID | 任務 ID |
.Name | 任務名稱 |
.Image | 任務映象 |
.Node | 節點 ID |
.DesiredState | 任務的期望狀態（running、shutdown 或 accepted） |
.CurrentState | 任務的當前狀態 |
.Error | 錯誤 |
.Ports | 任務釋出的埠 |
使用 --format 選項時，stack ps 命令將完全按照模板宣告輸出資料，或者在使用 table 指令時，也包含列標題。
以下示例使用不帶標題的模板，並輸出所有任務的 Name 和 Image 條目，以冒號 (:) 分隔
$ 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
要以 JSON 格式列出所有任務，請使用 json 指令
$ 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":""}
不將 ID 對映到名稱 (--no-resolve)
--no-resolve 選項顯示任務名稱的 ID，而不將 ID 對映到名稱。
$ 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
不截斷輸出 (--no-trunc)
部署服務時，docker 解析服務映象的摘要，並將服務固定到該摘要。預設情況下不顯示摘要，但如果使用 --no-trunc 則會打印出來。--no-trunc 選項還顯示未截斷的任務 ID 和錯誤訊息，如下所示
$ 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
僅顯示任務 ID (-q, --quiet)
-q 或 --quiet 選項僅顯示堆疊中任務的 ID。此示例輸出 voting 堆疊的所有任務 ID
$ docker stack ps -q voting
xim5bcqtgk1b
q7yik0ks1in6
rx5yo0866nfx
tz6j82jnwrx7
w48spazhbmxc
6jj1m02freg1
kqgdmededccb
t72q3z038jeh
此選項可用於執行批處理操作。例如，您可以將任務 ID 作為其他命令（如 docker inspect）的輸入。以下示例檢查 voting 堆疊的所有任務
$ docker inspect $(docker stack ps -q voting)
[
{
"ID": "xim5bcqtgk1b1gk0krq1",
"Version": {
<...>