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>
In the API:
`Writable` changed to `ReadOnly`
`Populate` changed to `NoCopy`
Corresponding CLI options updated to:
`volume-writable` changed to `volume-readonly`
`volume-populate` changed to `volume-nocopy`
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
The current behavior of `docker swarm init` is to set up a swarm that
has no secret for joining, and does not require manual acceptance for
workers. Since workers may sometimes receive sensitive data such as pull
credentials, it makes sense to harden the defaults.
This change makes `docker swarm init` generate a random secret if none
is provided, and print it to the terminal. This secret will be needed to
join workers or managers to the swarm. In addition to improving access
control to the cluster, this setup removes an avenue for
denial-of-service attacks, since the secret is necessary to even create
an entry in the node list.
`docker swarm init --secret ""` will set up a swarm without a secret,
matching the old behavior. `docker swarm update --secret ""` removes the
automatically generated secret after `docker swarm init`.
Closes#23785
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
This is done in a hacky way as currently there is no better way.
Uses known implementation details about how tasks are scheduled to be
able to operate on the underlying container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
schema1 manifests is not working on ARM64, we should skip integration-cli
tests for schema1 manifests on ARM64.
Signed-off-by: Lei Jitang <leijitang@huawei.com>
This fix tries to address an issue raised in #24090 where
the title field of `docker node ls` use NAME instead of
HOSTNAME. Yet the content of this field is actually
hostname.
The fix makes needed changes for the output of
`docker node ls`.
An additional test has been added to cover the change in
this fix.
This fix fixes#24090.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Fix two test issues:
- pidof is not available in PATH on some Jenkins systems (rhel, centos)
Use kill -0 instead.
- Cleanup after plugin test. This is a stop gap fix. The right way to
fix this, is to shutdown the plugin on daemon shutdown path (except
for the live-restore case). This will be done in a follow up PR.
Signed-off-by: Anusha Ragunathan <anusha@docker.com>
Always attempt to add digest even when tag already exists.
Ensure digest does not currently exist.
When image id is mismatched, output an error log.
Signed-off-by: Daniel Nephin <dnephin@docker.com>
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
