11d471d660
Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Implement runRollback to not use runUpdate Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Add version tag and add flag quiet to suppress progress output Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Removed flags from warnDetachDefault Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Used command.Cli interface Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Add detach flag on rollback command Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Create a fakeClient for service commands Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Added unit test for rollback command Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Used command.Cli interface instead of *command.DockerCli in service commands Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Revert "Removed flags from warnDetachDefault" This reverts commit 3e4f601c8a82cc2599a755dc693409bbc47917fc. Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Fixed test.NewFakeCli instanciation Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Removed unused receiver Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Replaced cli by dockerCli Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Revert "Removed unused receiver" This reverts commit 604ef7c13df3d019949ca81d992db501114dafce. Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com> Fixed last typo Signed-off-by: Jimmy Leger <jimmy.leger@gmail.com>
107 lines
2.9 KiB
Markdown
107 lines
2.9 KiB
Markdown
---
|
|
title: "service scale"
|
|
description: "The service scale command description and usage"
|
|
keywords: "service, scale"
|
|
---
|
|
|
|
<!-- This file is maintained within the docker/cli Github
|
|
repository at https://github.com/docker/cli/. Make all
|
|
pull requests against that repo. If you see this file in
|
|
another repository, consider it read-only there, as it will
|
|
periodically be overwritten by the definitive file. Pull
|
|
requests which include edits to this file in other repositories
|
|
will be rejected.
|
|
-->
|
|
|
|
# service scale
|
|
|
|
```markdown
|
|
Usage: docker service scale [OPTIONS] SERVICE=REPLICAS [SERVICE=REPLICAS...]
|
|
|
|
Scale one or multiple replicated services
|
|
|
|
Options:
|
|
-d, --detach Exit immediately instead of waiting for the service to converge (default true)
|
|
--help Print usage
|
|
```
|
|
|
|
## Description
|
|
|
|
The scale command enables you to scale one or more replicated services either up
|
|
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
|
|
service while keeping the service active in the swarm you can set the scale to 0.
|
|
|
|
## Examples
|
|
|
|
### Scale a single service
|
|
|
|
The following command scales the "frontend" service to 50 tasks.
|
|
|
|
```bash
|
|
$ docker service scale frontend=50
|
|
|
|
frontend scaled to 50
|
|
```
|
|
|
|
The following command tries to scale a global service to 10 tasks and returns an error.
|
|
|
|
```bash
|
|
$ 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
|
|
replicas.
|
|
|
|
```bash
|
|
$ docker service ls --filter name=frontend
|
|
|
|
ID NAME MODE REPLICAS IMAGE
|
|
3pr5mlvu3fh9 frontend replicated 15/50 nginx:alpine
|
|
```
|
|
|
|
You can also scale a service using the [`docker service update`](service_update.md)
|
|
command. The following commands are equivalent:
|
|
|
|
```bash
|
|
$ docker service scale frontend=50
|
|
$ docker service update --replicas=50 frontend
|
|
```
|
|
|
|
### Scale multiple services
|
|
|
|
The `docker service scale` command allows you to set the desired number of
|
|
tasks for multiple services at once. The following example scales both the
|
|
backend and frontend services:
|
|
|
|
```bash
|
|
$ docker service scale backend=3 frontend=5
|
|
|
|
backend scaled to 3
|
|
frontend scaled to 5
|
|
|
|
$ docker service ls
|
|
|
|
ID NAME MODE REPLICAS IMAGE
|
|
3pr5mlvu3fh9 frontend replicated 5/5 nginx:alpine
|
|
74nzcxxjv6fq backend replicated 3/3 redis:3.0.6
|
|
```
|
|
|
|
## 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 ps](service_ps.md)
|
|
* [service update](service_update.md)
|