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add replicated in service scale command description 

Signed-off-by: allencloud <allen.sun@daocloud.io>
This commit is contained in:
allencloud 2016-11-02 15:53:18 +08:00 committed by Tibor Vass
parent 1814d5121e
commit ef09aafc3e
2 changed files with 14 additions and 4 deletions
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2
contrib/completion/zsh/_docker
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@ -1075,7 +1075,7 @@ __docker_service_commands() {
"inspect:Display detailed information on one or more services" "inspect:Display detailed information on one or more services"
"ls:List services" "ls:List services"
"rm:Remove one or more services" "rm:Remove one or more services"
"scale:Scale one or multiple services" "scale:Scale one or multiple replicated services"
"ps:List the tasks of a service" "ps:List the tasks of a service"
"update:Update a service" "update:Update a service"
) )

16
docs/reference/commandline/service_scale.md
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@ -18,7 +18,7 @@ keywords: ["service, scale"]
```markdown ```markdown
Usage: docker service scale SERVICE=REPLICAS [SERVICE=REPLICAS...] Usage: docker service scale SERVICE=REPLICAS [SERVICE=REPLICAS...]
Scale one or multiple services Scale one or multiple replicated services
Options: Options:
--help Print usage --help Print usage
@ -28,8 +28,9 @@ Options:
### Scale a service ### Scale a service
The scale command enables you to scale one or more services either up or down to The scale command enables you to scale one or more replicated services either up
the desired number of replicas. The command will return immediately, but the or down to the desired number of replicas. This command cannot be applied on
services which are global mode. The command will return immediately, but the
actual scaling of the service may take some time. To stop all replicas of a actual scaling of the service may take some time. To stop all replicas of a
service while keeping the service active in the swarm you can set the scale to 0. service while keeping the service active in the swarm you can set the scale to 0.
@ -40,6 +41,15 @@ $ docker service scale frontend=50
frontend scaled to 50 frontend scaled to 50
``` ```
The following command tries to scale a global service to 10 tasks and returns an error.
```
$ docker service create --mode global --name backend backend:latest
b4g08uwuairexjub6ome6usqh
$ docker service scale backend=10
backend: scale can only be used with replicated mode
```
Directly afterwards, run `docker service ls`, to see the actual number of Directly afterwards, run `docker service ls`, to see the actual number of
replicas. replicas.