Add the capability to cancel the build by disconnecting the client.
This adds a `cancelled` channel which is used to signal that a build
should halt. The build is halted by sending a Kill signal and noticing
that the cancellation channel is closed.
This first pass implementation does not allow cancellation during a
pull, but that will come in a subsequent PR.
* Add documentation of cancellation to cli and API
* Protect job cancellation with sync.Once
* Add TestBuildCancelationKillsSleep
* Add test case for build cancellation of RUN statements.
Signed-off-by: Peter Waller <p@pwaller.net>
Link to new guide. Added a quickstart contributor guide for experienced people.
Converting narrative style to procedures for easier use. I think there is something missing in the
release publishing section...but it looks like it was missing in the original.
Updates per thaJeztah
Edits per Fred
Updating with comments from Sven
Signed-off-by: Mary Anthony <mary@docker.com>
Closes#10191
Allow `docker build` to set --cpu-shares, --cpuset, --memory,
--memory-swap for all containers created by the build.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Copied code from CmdSave into CmdExport. This should work, not an expert in the API calls being made. But it does make more sense to have a consistent export/save flag.
Signed-off-by: Joseph Kern <joseph.a.kern@gmail.com>
checkpoint before edits on the export functions
Signed-off-by: Joseph Kern <joseph.a.kern@gmail.com>
Added an --output flag to docker export and created tests.
Signed-off-by: Joseph Kern <joseph.a.kern@gmail.com>
White space cleanup.
Signed-off-by: Joseph Kern <joseph.a.kern@gmail.com>
Docker-DCO-1.1-Signed-off-by: Joseph Kern <jkern@semafour.net> (github: jfrazelle)
checkpoint before edits on the export functions
Signed-off-by: Joseph Kern <joseph.a.kern@gmail.com>
White space cleanup.
Signed-off-by: Joseph Kern <joseph.a.kern@gmail.com>
Added text to reflect a new output option for the export command.
Signed-off-by: Joseph Kern <joseph.a.kern@gmail.com>
Whitespace clean up
Signed-off-by: Joseph Kern <joseph.a.kern@gmail.com>
Added man page documentation for the new --output flag in export
Signed-off-by: Joseph Kern <joseph.a.kern@gmail.com>
The STDOUT behavior of cp is not yet released in 1.50 so removed.
Also, tested against 1.5 all other behaviors and extended documentation to match.
Renamed HOSTPATH to HOSTDIR to give a self documenting name.
Adding back in the references to STDOUT
fix the command string
Entering Doug's comment re append and ~/tmp/foo in the glass
Adding in Doug's comments regarding PATHs and missing |-
Updating with James comments
Signed-off-by: Mary Anthony <mary@docker.com>
Add ability to refer to an image by repository name and digest using the
format repository@digest. Works for pull, push, run, build, and rmi.
Signed-off-by: Andy Goldstein <agoldste@redhat.com>
Adds more documentation for labels and adds the label instruction to the
man-pages.
Also included is a document called "Labels - custom meta-data in Docker"
in the user-guide, this is still a work-in-progress I started to describe
the "namespaces" conventions, an example on storing structured data.
I ran a bit "out of steam" (writers block?) on that document, but kept
it in (for now), in case it still ends up useful.
The Remote API documentation changes will need to be moved to the
docker_remote_api_v1.18.md document when rebasing the whole PR.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Darren Shepherd <darren@rancher.com>
Save "LABEL" field in Dockerfile into image content.
This will allow a user to save user data into an image, which
can later be retrieved using:
docker inspect IMAGEID
I have copied this from the "Comment" handling in docker images.
We want to be able to add Name/Value data to an image to describe the image,
and then be able to use other tools to look at this data, to be able to do
security checks based on this data.
We are thinking about adding version names,
Perhaps listing the content of the dockerfile.
Descriptions of where the code came from etc.
This LABEL field should also be allowed to be specified in the
docker import --change LABEL:Name=Value
docker commit --change LABEL:Name=Value
Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
This adds two more tables to the run reference documentation.
- the list of 'modes' for Network settings is now a table.
- the "note" for `--net="host"` was moved from the list to the detailed
description.
- the 'options' for "Runtime constraints on CPU and memory" are
now a table
- slightly re-worded the description for "memory" options, e.g.
"It is not allowed..." was rewriten to "The *container* is not allowed..."
- fix example in "Runtime privilege, Linux capabilities, and LXC configuration"
being indented twice
- slightly reduced indenting in some `usage` output to be better readable.
- fixes a typo `/ets/hosts` -> `/etc/hosts`
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Cgroup resources are host dependent, they should be in hostConfig.
For backward compatibility, we just copy it to hostConfig, and leave it in
Config for now, so there is no regressions, but the right way to use this
throught json is to put it in HostConfig, like:
{
"Hostname": "",
...
"HostConfig": {
"CpuShares": 512,
"Memory": 314572800,
...
}
}
As we will add CpusetMems, CpusetCpus is definitely a better name, but some
users are already using Cpuset in their http APIs, we also make it compatible.
The main idea is keep using Cpuset in Config Struct, and make it has the same
value as CpusetCpus, but not always, some scenarios:
- Users use --cpuset in docker command, it can setup cpuset.cpus and can
get Cpuset field from docker inspect or other http API which will get
config info.
- Users use --cpuset-cpus in docker command, ditto.
- Users use Cpuset field in their http APIs, ditto.
- Users use CpusetCpus field in their http APIs, they won't get Cpuset field
in Config info, because by then, they should already know what happens
to Cpuset.
Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
A minor thing, but I noticed that the "Reference" drop-down menu just
says "Command line". This was fine when we just had one command line,
but now there's also 'Compose command line' and I suspect we may add
others later. We should qualify the Docker one with the word "Docker"
in front
Signed-off-by: Doug Davis <dug@us.ibm.com>
`docker rmi` output in docs/sources/reference/commandline/cli.md
is different from real scene. This commit fixes it.
Signed-off-by: Deng Guangxing <dengguangxing@huawei.com>
Read `/proc/sys/net/ipv4/ip_local_port_range` kernel parameter to obtain
ephemeral port range that now sets the boundaries of port allocator
which finds free host ports for those exported by containers.
Signed-off-by: Michal Minar <miminar@redhat.com>
This change adds daemon's system time as RFC3339Nano to the `/info` endpoint
and shows in a more readable format (UnixDate) in `docker -D info` output.
I will be using this to fix the clock skew between the remote test host and
the CI machines running `docker events`-related tests as they're using `--since`
and `--until` and the timestamps are not matching when daemon is not on the
same machine.
Signed-off-by: Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>
The original description has some mistakes and lack of many useful
information, I rewrite them to make it accurate and complete.
Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
This moves some information on restart-policies from
the "command line" page to "run reference".
Also fixes some minor typos and adds a "NOTE"
about --rm and --restart not allowed to be combined.
Also removes inline CSS styles from tables,
which will be styled by the stylesheet, and fixes
some minor MarkDown errors (`<` -> <)
depends on https://github.com/docker/docs-base/pull/1resolves#11069
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
and add a testcase to catch this in the future.
While in there I also:
- removed extra periods from the few options that had them (new test)
- made the --filter option consistent across all command
Signed-off-by: Doug Davis <dug@us.ibm.com>
Closes#10807
Adds support for `dockerfile` ONLY when `Dockerfile` can't be found.
If we're building from a Dockerfile via stdin/URL then always download
it a `Dockerfile` and ignore the -f flag.
Signed-off-by: Doug Davis <dug@us.ibm.com>
Use `-it` combination in example instead of `-ti`, because this is how it used everywhere in examples.
Update dockerfile_best-practices.md
Fix typo in command name
Signed-off-by: Dmitry Gusev <dmitry.gusev@gmail.com>
Fixes: 10855
The example was actually incorrect for many situations, and also, now
that we have IPv6 we should not that the example is for IPv4 and note
how to find IPv6 addresses. Also, the device they want to connect to
could be the bridge, or main ethernet device, or some other device
name, so note that as well.
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
Applied multi parameters to pause and unpause.
Created a new test file dedicated for pause commands.
Created a new utility function to get a slice of paused containers.
Updated documentation
Signed-off-by: André Martins <martins@noironetworks.com>
In order to fit printed messages to fit 80 chars,
rewording messages for `-H` and `--tls` flags.
Signed-off-by: Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>
It didn't work on v2 anyways. And an image with a lot of aliases was slow to
fetch.
Docker-DCO-1.1-Signed-off-by: Jessie Frazelle <princess@docker.com> (github: jfrazelle)
It's ambiguous to say that `ENV` is _functionally equivalent to prefixing the command with `<key>=<value>`_. `ENV` sets the environment for all future commands, but `RUN` can take chained commands like `RUN foo=bar bash -c 'echo $foo' && bash -c 'echo $foo $bar'`. Users with a solid understanding of `exec` may grok this without confusion, but less experienced users may need this distinction.
Signed-off-by: Michael A. Smith <msmith3@ebay.com>
Improve Environment Handling Descriptions
- Link `ENV` and `Environment Replacement`
- Improve side-effects of `ENV` text
- Rearrange avoiding side effects text
Signed-off-by: Michael A. Smith <msmith3@ebay.com>
Reflow change in commit 195f3a3f removed newlines in the config format.
This change reverts the sample config to the original formatting, which
matches the actual config format of a `awsconfig` file.
Signed-off-by: Katie McLaughlin <katie@glasnt.com>
This modifies the "docker help" text so that it is no wider than 80 chars
and each description fits on one line. This will also try to use ~ when
possible
Added a test to make sure we don't go over 80 chars again.
Added a test to make sure we use ~
Applied rules/tests to all docker commands - not just main help text
Closes#10214
Signed-off-by: Doug Davis <dug@us.ibm.com>
The docs around COPY/ADD already mentioned that it will do a relative
copy/add based on WORKDIR, so that part is already ok. Just needed to
tweak the WORKDIR section since w/o mentioning COPY/ADD it can be misleading.
Noticed by @phemmer
Signed-off-by: Doug Davis <dug@us.ibm.com>
See #10141 for more info, but the main point of this is to make sure
that if you do "docker run -e FOO ..." that FOO from the current env
is passed into the container. This means that if there's a value, its
set. But it also means that if FOO isn't set then it should be unset in
the container too - even if it has to remove it from the env. So,
unset HOSTNAME
docker run -e HOSTNAME busybox env
should _NOT_ show HOSTNAME in the list at all
Closes#10141
Signed-off-by: Doug Davis <dug@us.ibm.com>
Fixes#9960
This adds the output of a "Backing Filesystem:" entry to `docker info`
to overlay, aufs, and devicemapper graphdrivers. The default list
includes a fairly complete list of common filesystem names from
linux/include/uapi/linux/magic.h, but if the backing filesystem is not
recognized, the code will simply show "<unknown>"
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>
The documentation on `docker export` doesn't mention that
data in volumes is not included in the export.
This adds a note that volumes are not part of the export
and refers to the "Backup, restore, or migrate data volumes"
to give the user some pointers.
Relates to https://github.com/docker/docker/issues/10095
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Add a --readonly flag to allow the container's root filesystem to be
mounted as readonly. This can be used in combination with volumes to
force a container's process to only write to locations that will be
persisted. This is useful in many cases where the admin controls where
they would like developers to write files and error on any other
locations.
Closes#7923Closes#8752
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
We want to be able to use container without the PID namespace. We basically
want containers that can manage the host os, which I call Super Privileged
Containers. We eventually would like to get to the point where the only
namespace we use is the MNT namespace to bring the Apps userspace with it.
By eliminating the PID namespace we can get better communication between the
host and the clients and potentially tools like strace and gdb become easier
to use. We also see tools like libvirtd running within a container telling
systemd to place a VM in a particular cgroup, we need to have communications of the PID.
I don't see us needing to share PID namespaces between containers, since this
is really what docker exec does.
So currently I see us just needing docker run --pid=host
Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
Add a check to make sure Dockerfile is in the build context
Add docs and a testcase
Make -f relative to current dir, not build context
Signed-off-by: Doug Davis <dug@us.ibm.com>
If .dockerignore mentions either then the client will send them to the
daemon but the daemon will erase them after the Dockerfile has been parsed
to simulate them never being sent in the first place.
an events test kept failing for me so I tried to fix that too
Closes#8330
Signed-off-by: Doug Davis <dug@us.ibm.com>
as noted in https://github.com/boot2docker/boot2docker/issues/690
Signed-off-by: Sven Dowideit <SvenDowideit@docker.com>
Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)
--help and help are successful commands so output should not go to error.
QE teams have requested this change, also users doing docker help | less
or docker run --help | less would expect this to work.
Usage statement should only be printed when the user asks for it.
Errors should print error message and then suggest the docker COMMAND --help
command to see usage information.
The current behaviour causes the user to have to search for the error message
and sometimes scrolls right off the screen. For example a error on a
"docker run" command is very difficult to diagnose.
Finally erros should always exit with a non 0 exit code, if the user
makes a CLI error.
Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>
Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au> (github: SvenDowideit)
Signed-off-by: Sven Dowideit <SvenDowideit@docker.com>
Moved Tianon's PR from: https://github.com/docker/docker/pull/7870
on top of the latest code
Closes: #3936
Signed-off-by: Andrew Page <admwiggin@gmail.com>
Signed-off-by: Doug Davis <dug@us.ibm.com>
Forbid `docker run -t` with a redirected stdin (such as `echo test |
docker run -ti busybox cat`). Forbid `docker exec -t` with a redirected
stdin. Forbid `docker attach` with a redirect stdin toward a tty enabled
container.
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
inspired by #9448 and #9487
Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)
Signed-off-by: Sven Dowideit <SvenDowideit@docker.com>
inspired by #9452
Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)
Signed-off-by: Sven Dowideit <SvenDowideit@docker.com>
This adds the docker daemon's root directory to docker info when running
in debug mode. This allows the user to view the root directory where
docker is writing and storing state.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Current description is misleading. It make an impression the --icc=false
prevents containers to talk with each other.
Signed-off-by: Michal Minar <miminar@redhat.com>
Docker-DCO-1.1-Signed-off-by: Michal Minar <miminar@redhat.com> (github: SvenDowideit)
I've re-jigged the run man page so that each option's text begins with the
cli's help text for that flag, and then ay subsequent lines in the man page
are carried forward.
Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>
Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au> (github: SvenDowideit)
The documentation for EXPOSE seems to indicate, that EXPOSE is only relevant in
the context of links, which is not the case.
Signed-off-by: Jacob Atzen <jatzen@gmail.com>
I also needed to add a mflag.IsSet() function that allows you to check
to see if a certain flag was actually specified on the cmd line.
Per #9221 - also tweaked the docs to fix a typo.
Closes#9221
Signed-off-by: Doug Davis <dug@us.ibm.com>
Doug Davis
Peter Waller
Lloyd Dewolf
Mary Anthony
Todd Whiteman
Harald Albers
Vishnu Kannan
Brian Goff
Joseph Kern
Mary Anthony
Alexander Morozov
Andy Goldstein
Darren Shepherd
Sebastiaan van Stijn
Dan Walsh
Tianon Gravi
Sven Dowideit
Qiang Huang
Deng Guangxing
Michal Minar
Mabin
Rick Wieman
Ahmet Alp Balkan
ChristoperBiscardi
Srini Brahmaroutu
Lei Jitang
Zhang Wentao
resouer
Dmitry Gusev
Phil Estes
Abin Shahab
André Martins
Colm Hally
Bradley Cicenas
Jessica Frazelle
Peter Salvatore
Arnaud Porterie
Michael A. Smith
Katie McLaughlin
Chen Hanxiao
Michael Crosby
Sven Dowideit
Liang-Chi Hsieh
Nathan Hsieh
Srini Brahmaroutu
Andreas Köhler
Malte Janduda
Jan Koprowski
Christian Stefanescu
Fred Lifton
shishir-a412ed
Lénaïc Huard
Sindhu S
Tomas Tomecek
Alexander Boyd
Jacob Atzen
James Turnbull
Michael Steinert
Victor Vieux
Aidan Hobson Sayers
Dmitry V. Krivenok
unclejack
Vincent Batts