If user namespaces is enabled on the daemon, reveal that via docker info
by adding "userns" to the list of security options reported by the
info endpoint.
Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>
It seems that `max-concurrent-downloads` and `max-concurrent-uploads`
are supported in Windows for `config.json`. Though that was not
mentioned in the docs for dockerd.md.
This fix adds the following to the example `config.json` file for Windows:
```
"max-concurrent-downloads": 3,
"max-concurrent-uploads": 5,
```
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
--group-add was used for specifying groups for both service create
and service update. For create it was confusing since we don't have
an existing set of groups. Instead I added --group to create, and
moved --group-add to service update only, like --group-rm
This deals with issue 27646
Signed-off-by: Lily Guo <lily.guo@docker.com>
Update flag documentation
Specify that --group, --group-add and --groupd-rm refers to
supplementary user groups
Signed-off-by: Lily Guo <lily.guo@docker.com>
Fix docs for groups and update completion scripts
Signed-off-by: Lily Guo <lily.guo@docker.com>
A HealthConfig entry was added to the ContainerSpec associated with the
service being created or updated.
Signed-off-by: Cezar Sa Espinola <cezarsa@gmail.com>
The --name flag was inadvertently added to
docker service update, but is not supported,
as it has various side-effects (e.g., existing
tasks are not renamed).
This removes the flag from the service update
command.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This fix tries to address the issue in 24712 and add
`--env-file` file to `docker create service`.
Related documentation has been updated.
An additional integration has been added.
This fix fixes 24712.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
containers may specify these cgroup values at runtime. This will allow
processes to change their priority to real-time within the container
when CONFIG_RT_GROUP_SCHED is enabled in the kernel. See #22380.
Also added sanity checks for the new --cpu-rt-runtime and --cpu-rt-period
flags to ensure that that the kernel supports these features and that
runtime is not greater than period.
Daemon will support a --cpu-rt-runtime flag to initialize the parent
cgroup on startup, this prevents the administrator from alotting runtime
to docker after each restart.
There are additional checks that could be added but maybe too far? Check
parent cgroups to ensure values are <= parent, inspecting rtprio ulimit
and issuing a warning.
Signed-off-by: Erik St. Martin <alakriti@gmail.com>
`docker network prune` prunes unused networks, including overlay ones.
`docker system prune` also prunes unused networks.
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
The following sentences (introduced in v1.11 via #21160) were misleading for Swarm mode services (>= v1.12)
For networks backed by multi-host network driver, such as Overlay,
this command also shows the container endpoints in other hosts in the
cluster. These endpoints are represented as "ep-{endpoint-id}" in the output.
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
Currently, there's no way to restart the tasks of a service without
making an actual change to the service. This leads to us giving awkward
workarounds as in
https://github.com/docker/docker.github.io/pull/178/files, where we tell
people to scale a service up and down to restore balance, or make
unnecessary changes to trigger a restart.
This change adds a --force option to "docker service update", which
forces the service to be updated even if no changes require that.
Since rolling update parameters are respected, the user can use
"docker service --force" to do a rolling restart. For example, the
following is supported:
docker service update --force --update-parallelism 2 \
--update-delay 5s myservice
Since the default value of --update-parallelism is 1, the default
behavior is to restart the service one task at a time.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
Passing {{.Networks}} to the format parameter will prompt ps to
display all the networks the container is connected to.
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
Keeping the current behavior for exec, i.e., inheriting
variables from main process. New variables will be added
to current ones. If there's already a variable with that
name it will be overwritten.
Example of usage: docker exec -it -e TERM=vt100 <container> top
Closes#24355.
Signed-off-by: Jonh Wendell <jonh.wendell@redhat.com>
This fix tries to add a daemon config parameter `--shutdown-timeout`
that specifies the timeout value to stop containers gracefully
(before SIGKILL). The default value is 15s.
The `--shutdown-timeout` parameter is added to daemon options and
config file. It will also be updated during daemon reload.
Additional test cases have been added to cover the change.
This fix fixes#22471.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This adds support for two enhancements to swarm service rolling updates:
- Failure thresholds: In Docker 1.12, a service update could be set up
to either pause or continue after a single failure occurs. This adds
an --update-max-failure-ratio flag that controls how many tasks need to
fail to update for the update as a whole to be considered a failure. A
counterpart flag, --update-monitor, controls how long to monitor each
task for a failure after starting it during the update.
- Rollback flag: service update --rollback reverts the service to its
previous version. If a service update encounters task failures, or
fails to function properly for some other reason, the user can roll back
the update.
SwarmKit also has the ability to roll back updates automatically after
hitting the failure thresholds, but we've decided not to expose this in
the Docker API/CLI for now, favoring a workflow where the decision to
roll back is always made by an admin. Depending on user feedback, we may
add a "rollback" option to --update-failure-action in the future.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
This fix tries to add a flag `--stop-timeout` to specify the timeout value
(in seconds) for the container to stop before SIGKILL is issued. If stop timeout
is not specified then the default timeout (10s) is used.
Additional test cases have been added to cover the change.
This fix is related to #22471. Another pull request will add `--shutdown-timeout`
to daemon for #22471.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Allow passing --storage-opt size=X to docker create/run commands
for the `overlay2` graphriver.
The size option is only available if the backing fs is xfs that is
mounted with the `pquota` mount option.
The user can pass any size less then the backing fs size.
Signed-off-by: Amir Goldstein <amir73il@aquasec.com>
Fedora 22 reached end of life on July 19th, and
will no longer receive updates;
https://fedoramagazine.org/fedora-22-end-of-life-2016-july/
With the recent release of Fedora 24, Fedora 22 will officially enter End Of
Life (EOL) status on July 19th, 2016. After July 19th, all packages in the
Fedora 22 repositories will no longer receive security, bugfix, or enhancement
updates, and no new packages will be added to the Fedora 22 collection.
Upgrading to Fedora 23 or Fedora 24 before July 19th 2016 is highly recommended
for all users still running Fedora 22.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Some frontmatter such as the weights, menu stuff, etc is no longer used
'draft=true' becomes 'published: false'
Signed-off-by: Misty Stanley-Jones <misty@docker.com>
This information was added in
1efc940e6f547760e5e8f4648acb120ff19fdc58,
but removed again in
a271eaeba224652e3a12af0287afbae6f82a9333
to make the help-output fit in a 80-chars
terminal.
This adds the available options again
in the help output, and updates the CLI
reference documentation to match actual
output.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Linux kernel 4.3 and later supports "ambient capabilities" which are the
only way to pass capabilities to containers running as a non root uid.
Previously there was no way to allow containers not running as root
capabilities in a useful way.
Fix#8460
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
When sending a build context to a remote server it may be
(significantly) advantageous to compress the build context. This commit
adds support for gz compression when constructing a build context
using a command like "docker build --compress ."
Signed-off-by: Paul Kehrer <paul.l.kehrer@gmail.com>
As is specified in 26964, it is possible to specify
a filter based on the node name or node ID.
This fix updates the related docs for that.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This fix updates docs for `service ps` as now the TASK ID part has been
removed.
Also, this fix fixes several incorrect sample output.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This commit updates documentation and change log to include
the preliminary validation of the dockerfile before instructions
in dockerfile is run one-by-one.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Allows the user to use `pretty` as the format string.
This enables users to put custom format options into their CLI config
just like is supported for `docker ps` and `docker images`
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This adds a small C binary for fighting zombies. It is mounted under
`/dev/init` and is prepended to the args specified by the user. You
enable it via a daemon flag, `dockerd --init`, as it is disable by
default for backwards compat.
You can also override the daemon option or specify this on a per
container basis with `docker run --init=true|false`.
You can test this by running a process like this as the pid 1 in a
container and see the extra zombie that appears in the container as it
is running.
```c
int main(int argc, char ** argv) {
pid_t pid = fork();
if (pid == 0) {
pid = fork();
if (pid == 0) {
exit(0);
}
sleep(3);
exit(0);
}
printf("got pid %d and exited\n", pid);
sleep(20);
}
```
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Because we standardize on using a non-privileged
prompt (`$`) instead of `#`, replacing the
examples to use `sudo` instead to indicate
this has to be run as root.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The "format" example got lost during the
rewrite of the documentation for Cobra. This
restores the missing example.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Several other places in the document it states that when using the shell
form of ENTRYPOINT, CMD and command line arguments are ignored. That is
accurate, this table was not. It is now.
Signed-off-by: David Dooling <dooling@gmail.com>
The restriction is no longer necessary given changes at the runc layer
related to mount options of the rootfs. Also cleaned up the docs on
restrictions left for userns enabled mode. Re-enabled tests related to
--read-only when testing a userns-enabled daemon in integration-cli.
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
This may take some time, but start by pointing people at
LABEL instead.
MAINTAINER predates general LABEL and has basically no tooling,
only allows a single item to be added, and is has been
unofficially deprecated for some time, with many images not
including it, but we have never specifically said that it
should be replaced by LABEL as a better more generic metadata
solution.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
The indexing of steps in the output of `docker build` starts with `Step 1`.
However, there are several places in the docs that start with `Step 0`.
This fix addresses the issue and changes `Step 0` to `Step 1` (and subsequent steps).
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Qiang Huang
Josh Horwitz
Phil Estes
yuexiao-wang
Yong Tang
John Howard
Lily Guo
lixiaobing10051267
Cezar Sa Espinola
Ce Gao
Sebastiaan van Stijn
Erik St. Martin
Leo Gallucci
sandyskies
Akihiro Suda
Kenfe-Mickael Laventure
Aaron Lehmann
Misty Stanley-Jones
allencloud
Jonh Wendell
Ding Fei
Luca Favatella
Amir Goldstein
Alicia Lauerman
Darren Stahl
Justin Cormack
Antonio Murdaca
Paul Kehrer
Vincent Demeester
Tõnis Tiigi
Boaz Shuster
YuPengZTE
Brian Goff
Michael Crosby
Alessandro Boch
Josh Bodah
David Dooling
Anusha Ragunathan
Charles Smith
Richard Mathie
zhouhao