Commit Graph

3 Commits

Author SHA1 Message Date
Qiang Huang 670a0b8077 Soften limitation of update kernel memory
Kernel memory is not allowed to be updated if container is
running, it's not actually a precise kernel limitation.

Before kernel version 4.6, kernel memory will not be accounted
until kernel memory limit is set, if a container created with
kernel memory initialized, kernel memory is accounted as soon
as process created in container, so kernel memory limit update
is allowed afterward. If kernel memory is not initialized,
kernel memory consumed by processes in container will not be
accounted, so we can't update the limit because the account
will be wrong.

So update kernel memory of a running container with kernel memory
initialized is allowed, we should soften the limitation by docker.

Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
2017-06-02 00:07:49 +00:00
Zhang Wei 623082a1eb Update RestartPolicy of container
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>
2017-06-02 00:07:29 +00:00
Qiang Huang 3f44418168 Implemet docker update command
It's used for updating properties of one or more containers, we only
support resource configs for now. It can be extended in the future.

Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
2017-06-02 00:07:21 +00:00