Once thin pool gets full, bad things can happen. Especially in case of xfs
it is possible that xfs keeps on retrying IO infinitely (for certain kind
of IO) and container hangs.
One way to mitigate the problem is that once thin pool is about to get full,
start failing some of the docker operations like pulling new images or
creation of new containers. That way user will get warning ahead of time
and can try to rectify it by creating more free space in thin pool. This
can be done either by deleting existing images/containers or by adding more
free space to thin pool.
This patch adds a new option dm.min_free_space to devicemapper graph
driver. Say one specifies dm.min_free_space=10%. This means atleast
10% of data and metadata blocks should be free in pool before new device
creation is allowed, otherwise operation will fail.
By default min_free_space is 10%. User can change it by specifying
dm.min_free_space=X% on command line. A value of 0% will disable the
check.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Allows users to submit options similar to the `mount` command when
creating a volume with the `local` volume driver.
For example:
```go
$ docker volume create -d local --opt type=nfs --opt device=myNfsServer:/data --opt o=noatime,nosuid
```
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
These were left-overs from the now deprecated
and removed functionality to registrer a new account
through "docker login"
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This removes the email prompt when you use docker login, and also removes the ability to register via the docker cli. Docker login, will strictly be used for logging into a registry server.
Signed-off-by: Ken Cochrane <kencochrane@gmail.com>
- Allow to filter containers by volume with `--filter volume=name` and `filter volume=/dest`.
- Show their names in the list with the custom format `{{ .Mounts }}`.
Signed-off-by: David Calavera <david.calavera@gmail.com>
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>
It is difficult to gather information about docker volumes command
without a parent man page.
This man page attempts to explain docker volumes and then references
the command man pages.
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
In new content addressable model, image no longer
have virtual size column, it is now 'size'. So we
need to update related docs about them.
Signed-off-by: Kai Qiang Wu(Kennan) <wkqwu@cn.ibm.com>
We cannot rely on the tar command for this type of operation because tar
versions, flags, and functionality can very from distro to distro.
Since this is in the container execution path it is not safe to have
this as a dependency from dockers POV where the user cannot change the
fact that docker is adding these pre and post mount commands.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This makes it so when calling `docker run --rm`, or `docker rm -v`, only
volumes specified without a name, e.g. `docker run -v /foo` instead of
`docker run -v awesome:/foo` are removed.
Note that all volumes are named, some are named by the user, some get a
generated name. This is specifically about how the volume was specified
on `run`, assuming that if the user specified it with a name they expect
it to persist after the container is cleaned up.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
It is possible to invoke `docker ps -f status=dead`, but the
documentation for docker-ps does not mention `dead` as a valid option.
This commit fixes that.
Signed-off-by: Kareem Khazem <karkhaz@karkhaz.com>
* If user doesn't specify the subnets to create a network, it will pick
subnets from inside preferred pool. This PR aims to inspect these subnets info
* Add integration tests for docker inspect the subnets.
* docker-py project is already synchronized.
* jenkins checks depend on https://github.com/docker/docker-py/pull/888
Fixes issue #18626
Signed-off-by: Wen Cheng Ma <wenchma@cn.ibm.com>
Read configuration after flags making this the priority:
1- Apply configuration from file.
2- Apply configuration from flags.
Reload configuration when a signal is received, USR2 in Linux:
- Reload router if the debug configuration changes.
- Reload daemon labels.
- Reload cluster discovery.
Signed-off-by: David Calavera <david.calavera@gmail.com>
docker's network disconnect api now supports `Force` option which can be
used to force cleanup an endpoint from any host in the cluster.
Signed-off-by: Madhu Venugopal <madhu@docker.com>
Remove the experimental docs for user namespaces and add similar content
to the `docker daemon` command documentation.
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
Instead of just showing the number of containers this patch will
show the number of running, paused and stopped containers as well.
Signed-off-by: Kim Eik <kim@heldig.org>
(cherry picked from commit a9804ab1cb)
Implement configurable detach keys (for `attach`, exec`, `run` and
`start`) using the client-side configuration
- Adds a `--detach-keys` flag to `attach`, `exec`, `run` and `start`
commands.
- Adds a new configuration field (in `~/.docker/config.json`) to
configure the default escape keys for docker client.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Signed-off-by: Mary Anthony <mary@docker.com>
Adding comments. Fixing bit in daemon
Signed-off-by: Mary Anthony <mary@docker.com>
Arrrgggh
Signed-off-by: Mary Anthony <mary@docker.com>
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>
Add filter support for `network ls` to hide predefined network,
then user can use "docker network rm `docker network ls -f type=custom`"
to delete a bundle of userdefined networks.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Right now, the quiet (-q, --quiet) flag ignores the output
generated from within the container.
However, it ought to be quiet in a way that all kind
of diagnostic output should be ignored, unless the build
process fails.
This patch makes the quiet flag behave in the following way:
1. If the build process succeeds, stdout contains the image ID
and stderr is empty.
2. If the build process fails, stdout is empty and stderr
has the error message and the diagnostic output of that process.
If the quiet flag is not set, then everything goes to stdout
and error messages, if there are any, go to stderr.
Signed-off-by: Boaz Shuster <ripcurld.github@gmail.com>
Allow passing mount propagation option shared, slave, or private as volume
property.
For example.
docker run -ti -v /root/mnt-source:/root/mnt-dest:slave fedora bash
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Some users expect that the `docker top $CONT` command displays information from the inside container perspective.
They expect that the `docker top $CONT` command displays same information as the `docker exec $CONT ps -ef` command. But it does not.
That's why the `docker top` man page shall explicitly state that the `docker top $CONT` displays information from the host's point of view.
Signed-off-by: Pavel Pospisil <pospispa@gmail.com>
It will Tar up contents of child directory onto tmpfs if mounted over
This patch will use the new PreMount and PostMount hooks to "tar"
up the contents of the base image on top of tmpfs mount points.
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
Closes#9798
@maintainers please note that this is a change to the UX. We no longer
require the -f flag on `docker tag` to move a tag from an existing image.
However, this does make us more consistent across our commands,
see https://github.com/docker/docker/issues/9798 for the history.
Signed-off-by: Doug Davis <dug@us.ibm.com>
libcontainer v0.0.4 introduces setting `/proc/self/oom_score_adj` to
better tune oom killing preferences for container process. This patch
simply integrates OomScoreAdj libcontainer's config option and adjust
the cli with this new option.
Signed-off-by: Antonio Murdaca <amurdaca@redhat.com>
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
This commit enhance `docker network rm` command to allow user to delete
multi networks at the same time.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Fixes#16555
Original docker `cp` always copy symbol link itself instead of target,
now we provide '-L' option to allow docker to follow symbol link to real
target.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
* This commit will mark --before and --since as deprecated, but leave their behavior
unchanged until they are removed, then re-implement them as options for --filter.
* And update the related docs.
* Update the integration tests.
Fixes issue #17716
Signed-off-by: Wen Cheng Ma <wenchma@cn.ibm.com>
- Optional "--shm-size=" was added to the sub-command(run, create,and build).
- The size of /dev/shm in the container can be changed
when container is made.
- Being able to specify is a numerical value that applies number,
b, k, m, and g.
- The default value is 64MB, when this option is not set.
- It deals with both native and lxc drivers.
Signed-off-by: NIWA Hideyuki <niwa.hiedyuki@jp.fujitsu.com>
This change will allow us to run SELinux in a container with
BTRFS back end. We continue to work on fixing the kernel/BTRFS
but this change will allow SELinux Security separation on BTRFS.
It basically relabels the content on container creation.
Just relabling -init directory in BTRFS use case. Everything looks like it
works. I don't believe tar/achive stores the SELinux labels, so we are good
as far as docker commit.
Tested Speed on startup with BTRFS on top of loopback directory. BTRFS
not on loopback should get even better perfomance on startup time. The
more inodes inside of the container image will increase the relabel time.
This patch will give people who care more about security the option of
runnin BTRFS with SELinux. Those who don't want to take the slow down
can disable SELinux either in individual containers or for all containers
by continuing to disable SELinux in the daemon.
Without relabel:
> time docker run --security-opt label:disable fedora echo test
test
real 0m0.918s
user 0m0.009s
sys 0m0.026s
With Relabel
test
real 0m1.942s
user 0m0.007s
sys 0m0.030s
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
This patch adds the ability to run `docker stats` w/o arguments and get
statistics for all running containers by default. Also add a new
`--all` flag to list statistics for all containers (like `docker ps`).
New running containers are added to the list as they show up also.
Add integration tests for this new behavior.
Docs updated accordingly. Fix missing stuff in man/commandline
reference for `docker stats`.
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
The LXC driver was deprecated in Docker 1.8.
Following the deprecation rules, we can remove a deprecated feature
after two major releases. LXC won't be supported anymore starting on Docker 1.10.
Signed-off-by: David Calavera <david.calavera@gmail.com>
The purpose of this PR is for users to distinguish Docker errors from
contained command errors.
This PR modifies 'docker run' exit codes to follow the chroot standard
for exit codes.
Exit status:
125 if 'docker run' itself fails
126 if contained command cannot be invoked
127 if contained command cannot be found
the exit status otherwise
Signed-off-by: Sally O'Malley <somalley@redhat.com>
- the /etc/hosts read caveat due to dynamic update
- information about docker_gwbridge
- Carries and closes#17654
- Updating with last change by Madhu
- Updating with the IPAM api 1.22
Signed-off-by: Mary Anthony <mary@docker.com>
Removing old networking.md
Updating dockernetworks.md with images
Adding information on network plugins
Adding blurb about links to docker networking
Updating the working documentation
Adding Overlay Getting Started
Downplaying links by removing refs/examples, adding refs/examples for network.
Updating getting started to reflect networks not links
Pulling out old network material
Updating per discussion with Madhu to add Default docs section
Updating with bridge default
Fix bad merge
Updating with new cluster-advertise behavior
Update working and NetworkSettings examples
Correcting example for default bridge discovery behavior
Entering comments
Fixing broken Markdown Syntax
Updating with comments
Updating all the links
Signed-off-by: Mary Anthony <mary@docker.com>
Adding Related information blocks
Final first draft pass: ready for review
Review comments
Entering comments from the gang
Updating connect to include paused
Signed-off-by: Mary Anthony <mary@docker.com>
Refactor so that the Host flag validation doesn't destroy the user's input,
and then post process the flags when we know the TLS options
Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>
add needed clarity for
1) using STDIN to pass build context
2) --cpu-shares flag use
also a few typos
Signed-off-by: Sally O'Malley <somalley@redhat.com>
Provide a command line option dm.use_deferred_deletion to enable deferred
device deletion feature. By default feature will be turned off.
Not sure if there is much value in deferred deletion being turned on
without deferred removal being turned on. So for now, this feature can
be enabled only if deferred removal is on.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
- missing help option in `docs/reference/commandline/*.md` (some files
have it, the other I fixed didn't)
- missing `[OPTIONS]` in Usage description
- missing options
- formatting
- start/stop idempotence
Signed-off-by: Antonio Murdaca <amurdaca@redhat.com>
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
cleaning up docker run -v documentation for man and web reference guide
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
- The build-time variables are passed as environment-context for command(s)
run as part of the RUN primitve. These variables are not persisted in environment of
intermediate and final images when passed as context for RUN. The build environment
is prepended to the intermediate continer's command string for aiding cache lookups.
It also helps with build traceability. But this also makes the feature less secure from
point of view of passing build time secrets.
- The build-time variables also get used to expand the symbols used in certain
Dockerfile primitves like ADD, COPY, USER etc, without an explicit prior definiton using a
ENV primitive. These variables get persisted in the intermediate and final images
whenever they are expanded.
- The build-time variables are only expanded or passed to the RUN primtive if they
are defined in Dockerfile using the ARG primitive or belong to list of built-in variables.
HTTP_PROXY, HTTPS_PROXY, http_proxy, https_proxy, FTP_PROXY and NO_PROXY are built-in
variables that needn't be explicitly defined in Dockerfile to use this feature.
Signed-off-by: Madhav Puri <madhav.puri@gmail.com>
If a logdriver doesn't register a callback function to validate log
options, it won't be usable. Fix the journald driver by adding a dummy
validator.
Teach the client and the daemon's "logs" logic that the server can also
supply "logs" data via the "journald" driver. Update documentation and
tests that depend on error messages.
Add support for reading log data from the systemd journal to the
journald log driver. The internal logic uses a goroutine to scan the
journal for matching entries after any specified cutoff time, formats
the messages from those entries as JSONLog messages, and stuffs the
results down a pipe whose reading end we hand back to the caller.
If we are missing any of the 'linux', 'cgo', or 'journald' build tags,
however, we don't implement a reader, so the 'logs' endpoint will still
return an error.
Make the necessary changes to the build setup to ensure that support for
reading container logs from the systemd journal is built.
Rename the Jmap member of the journald logdriver's struct to "vars" to
make it non-public, and to make it easier to tell that it's just there
to hold additional variable values that we want journald to record along
with log data that we're sending to it.
In the client, don't assume that we know which logdrivers the server
implements, and remove the check that looks at the server. It's
redundant because the server already knows, and the check also makes
using older clients with newer servers (which may have new logdrivers in
them) unnecessarily hard.
When we try to "logs" and have to report that the container's logdriver
doesn't support reading, send the error message through the
might-be-a-multiplexer so that clients which are expecting multiplexed
data will be able to properly display the error, instead of tripping
over the data and printing a less helpful "Unrecognized input header"
error.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com> (github: nalind)
This PR makes a user visible behavior change with userland
proxy disabled by default and rely on hairpin NAT to be enabled
by default. This may not work in older (unsupported) kernels
where the user will be forced to enable userlandproxy if needed.
- Updated the Docs
- Changed the integration-cli to start with userlandproxy
desiabled by default.
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
Allow to set the signal to stop a container in `docker run`:
- Use `--stop-signal` with docker-run to set the default signal the container will use to exit.
Signed-off-by: David Calavera <david.calavera@gmail.com>
For both commands, volume is _not_ optional. Several volumes may
be specified.
Both commands now use the same name (VOLUME) for the command argument.
Signed-off-by: Harald Albers <github@albersweb.de>
Makes it possible to filter containers by image, using
--filter=ancestor=busybox and get all the container running busybox
image and image based on busybox (to the bottom).
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Make command like "docker images ubuntu:14.04" work and filter out the
image with the given tag.
Closes#8048.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
This reverts commit 40b71adee3.
Original commit (for which this is effectively a rebased version) is
72a500e9e5 and was provided by Lei Jitang
<leijitang@huawei.com>.
Signed-off-by: Tim Dettrick <t.dettrick@uq.edu.au>
All docker subcommands support `-h` as an alias for `--help`
unless they have `-h` aliased to something else like `docker run`,
which uses `-h` for `--hostname`.
`-h` is not included in the help messages of the commands, though.
It ist visible in
* reference: only in `docker daemon` reference,
see output of `grep -Rse --help=false docs`
* man pages: only in `docker` man page
see output of `grep -RF '**-h**' man`
For consistency reasons, this commit removes `-h` as an alias for
`--help` from the reference page, man page and the bash completion.
Signed-off-by: Harald Albers <github@albersweb.de>
"Options:" listed when you run "docker --help" and "docker daemon
--help" do not match the options listed in "man/docker.1.md". This PR
makes 'docker --help', 'docker daemon --help' and 'man docker' consistent.
Also 2 typo fixes.
Signed-off-by: Sally O'Malley <somalley@redhat.com>
* Add space between values in docker stats output for easier parsing
Old output could not be parsed easily because there were columns
that did not have any separator. Also values that are together
without any space is difficult to read even for humans.
* Update unit.HumanSize comment to match what the does actually does
Signed-off-by: Otto Kekäläinen <otto@seravo.fi>
Re-add the docs from @calavera's PR to the moved cli cmd reference docs.
Fix gofmt and vet issues from carried commits
Add integration test for using format with --no-trunc and multi-names
Fix custom_test map order dependency on expected value check
Add docs to reference/commandline/ps.md
Remove "-F" flag option from original carried PR content
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
Documented changes to API to enable new `docker cp` behavior.
Added documentation on `docker cp` usage and behavior.
Docker-DCO-1.1-Signed-off-by: Josh Hawn <josh.hawn@docker.com> (github: jlhawn)
Fixes an issue with curly braces being escaped when they should not be.
This was particularly an issue in places where `--format '{{ ... }}'`
is used in the man docs.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This PR adds recommendations in man pages to use only [a-z0-9-_.] when
naming and tagging images. The purpose of this is to add consistency
and to make image naming caps rules seem less arbitrary.
This PR addresses confusion with:
1. BaseImage:Tagged (not allowed)
2. baseimage:Tagged (allowed)
3. baseimage/tagged:V1 (allowed)
4. baseimage/Tagged:V1 (not allowed)
Signed-off-by: Sally O'Malley <somalley@redhat.com>
