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Update RestartPolicy of container

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Add `--restart` flag for `update` command, so we can change restart
policy for a container no matter it's running or stopped.

Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
This commit is contained in:
Zhang Wei
2016-01-04 23:58:20 +08:00
committed by Tibor Vass
parent 776757ac28
commit 623082a1eb
2 changed files with 38 additions and 11 deletions
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22
docs/reference/commandline/update.md
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@@ -12,7 +12,7 @@ parent = "smn_cli"
Usage: docker update [OPTIONS] CONTAINER [CONTAINER...]
Updates container resource limits
Update configuration of one or more containers
--help=false Print usage
--blkio-weight=0 Block IO (relative weight), between 10 and 1000
@@ -25,11 +25,12 @@ parent = "smn_cli"
--memory-reservation="" Memory soft limit
--memory-swap="" A positive integer equal to memory plus swap. Specify -1 to enable unlimited swap
--kernel-memory="" Kernel memory limit: container must be stopped
--restart Restart policy to apply when a container exits
The `docker update` command dynamically updates container resources. Use this
command to prevent containers from consuming too many resources from their
Docker host. With a single command, you can place limits on a single
container or on many. To specify more than one container, provide
The `docker update` command dynamically updates container configuration.
You can use this command to prevent containers from consuming too many resources
from their Docker host. With a single command, you can place limits on
a single container or on many. To specify more than one container, provide
space-separated list of container names or IDs.
With the exception of the `--kernel-memory` value, you can specify these
@@ -38,6 +39,10 @@ options on a running or a stopped container. You can only update
stopped container, the next time you restart it, the container uses those
values.
Another configuration you can change with this command is restart policy,
new restart policy will take effect instantly after you run `docker update`
on a container.
## EXAMPLES
The following sections illustrate ways to use this command.
@@ -59,3 +64,10 @@ To update multiple resource configurations for multiple containers:
```bash
$ docker update --cpu-shares 512 -m 300M abebf7571666 hopeful_morse
```
### Update a container's restart policy
To update restart policy for one or more containers:
```bash
$ docker update --restart=on-failure:3 abebf7571666 hopeful_morse
```