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Author SHA1 Message Date
Doug Davis
cdb8ea90b0 Fix processing of unset build-args during build
This reverts 26103.  26103 was trying to make it so that if someone did:
  docker build --build-arg FOO .
and FOO wasn't set as an env var then it would pick-up FOO from the
Dockerfile's ARG cmd.  However, it went too far and removed the ability
to specify a build arg w/o any value. Meaning it required the --build-arg
param to always be in the form "name=value", and not just "name".

This PR does the right fix - it allows just "name" and it'll grab the value
from the env vars if set. If "name" isn't set in the env then it still needs
to send "name" to the server so that a warning can be printed about an
unused --build-arg. And this is why buildArgs in the options is now a
*string instead of just a string - 'nil' == mentioned but no value.

Closes #29084

Signed-off-by: Doug Davis <dug@us.ibm.com>
2016-12-07 07:41:55 -08:00
John Howard
9127818414 Windows: Honour escape directive fully
Signed-off-by: John Howard <jhoward@microsoft.com>
2016-10-21 14:22:14 -07:00
Yong Tang
c8dc2b156a Check bad syntax on dockerfile before building.
This fix tries to address the issue raised in 26453 where bad syntax
on dockerfile is not checked before building, thus user has to wait
before seeing error in dockerfile.

This fix fixes the issue by evaluating all the instructions and check
syntax before dockerfile is invoked actually.

All existing tests pass.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
2016-09-13 21:43:10 -07:00
Yong Tang
35418c1455 Add hint of progress to the output of docker build
This fix tries to address the issue raised in 24912 where docker
build only consists of the current step without overall total steps.

This fix adds the overall total steps so that end user could follow
the progress of the docker build.

An additonal test has been added to cover the changes.

This fix fixes 24912.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
2016-07-24 08:13:58 -07:00
John Howard
b18ae8c9cc Builder default shell
Signed-off-by: John Howard <jhoward@microsoft.com>
2016-06-03 13:54:31 -07:00
Thomas Leonard
b6c7becbfe
Add support for user-defined healthchecks
This PR adds support for user-defined health-check probes for Docker
containers. It adds a `HEALTHCHECK` instruction to the Dockerfile syntax plus
some corresponding "docker run" options. It can be used with a restart policy
to automatically restart a container if the check fails.

The `HEALTHCHECK` instruction has two forms:

* `HEALTHCHECK [OPTIONS] CMD command` (check container health by running a command inside the container)
* `HEALTHCHECK NONE` (disable any healthcheck inherited from the base image)

The `HEALTHCHECK` instruction tells Docker how to test a container to check that
it is still working. This can detect cases such as a web server that is stuck in
an infinite loop and unable to handle new connections, even though the server
process is still running.

When a container has a healthcheck specified, it has a _health status_ in
addition to its normal status. This status is initially `starting`. Whenever a
health check passes, it becomes `healthy` (whatever state it was previously in).
After a certain number of consecutive failures, it becomes `unhealthy`.

The options that can appear before `CMD` are:

* `--interval=DURATION` (default: `30s`)
* `--timeout=DURATION` (default: `30s`)
* `--retries=N` (default: `1`)

The health check will first run **interval** seconds after the container is
started, and then again **interval** seconds after each previous check completes.

If a single run of the check takes longer than **timeout** seconds then the check
is considered to have failed.

It takes **retries** consecutive failures of the health check for the container
to be considered `unhealthy`.

There can only be one `HEALTHCHECK` instruction in a Dockerfile. If you list
more than one then only the last `HEALTHCHECK` will take effect.

The command after the `CMD` keyword can be either a shell command (e.g. `HEALTHCHECK
CMD /bin/check-running`) or an _exec_ array (as with other Dockerfile commands;
see e.g. `ENTRYPOINT` for details).

The command's exit status indicates the health status of the container.
The possible values are:

- 0: success - the container is healthy and ready for use
- 1: unhealthy - the container is not working correctly
- 2: starting - the container is not ready for use yet, but is working correctly

If the probe returns 2 ("starting") when the container has already moved out of the
"starting" state then it is treated as "unhealthy" instead.

For example, to check every five minutes or so that a web-server is able to
serve the site's main page within three seconds:

    HEALTHCHECK --interval=5m --timeout=3s \
      CMD curl -f http://localhost/ || exit 1

To help debug failing probes, any output text (UTF-8 encoded) that the command writes
on stdout or stderr will be stored in the health status and can be queried with
`docker inspect`. Such output should be kept short (only the first 4096 bytes
are stored currently).

When the health status of a container changes, a `health_status` event is
generated with the new status. The health status is also displayed in the
`docker ps` output.

Signed-off-by: Thomas Leonard <thomas.leonard@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2016-06-02 23:58:34 +02:00
msabansal
4982a732f3 Enabling expose support for Windows TP5
Signed-off-by: msabansal <sabansal@microsoft.com>
2016-03-30 17:25:41 -07:00
Anusha Ragunathan
5190794f1d Use ImageBuildOptions in builder.
dockerfile.Config is almost redundant with ImageBuildOptions.
Unify the two so that the latter can be removed. This also
helps build's API endpoint code to be less dependent on package
dockerfile.

Signed-off-by: Anusha Ragunathan <anusha@docker.com>
2016-01-05 10:09:34 -08:00
Justas Brazauskas
927b334ebf Fix typos found across repository
Signed-off-by: Justas Brazauskas <brazauskasjustas@gmail.com>
2015-12-13 18:04:12 +02:00
Doug Davis
fbdce2547f convert map value from struct to bool
Just for @calavera !! :-)
Per: https://github.com/docker/docker/pull/17789#discussion_r44333133

Signed-off-by: Doug Davis <dug@us.ibm.com>
2015-11-10 13:10:35 -08:00
Doug Davis
6990f8c616 Allow for env vars to have spaces in some cases
Closes #17781

This allows for env vars in EXPOSE to be parsed for spaces so that each
"word" is then treated independently instead of as a single word/arg.

Signed-off-by: Doug Davis <dug@us.ibm.com>
2015-11-09 12:42:56 -08:00
John Howard
a7e686a779 Windows: Add volume support
Signed-off-by: John Howard <jhoward@microsoft.com>
2015-10-22 10:42:53 -07:00
Tibor Vass
e0ef11a4c2 Abstract builder and implement server-side dockerfile builder
This patch creates interfaces in builder/ for building Docker images.
It is a first step in a series of patches to remove the daemon
dependency on builder and later allow a client-side Dockerfile builder
as well as potential builder plugins.

It is needed because we cannot remove the /build API endpoint, so we
need to keep the server-side Dockerfile builder, but we also want to
reuse the same Dockerfile parser and evaluator for both server-side and
client-side.

builder/dockerfile/ and api/server/builder.go contain implementations
of those interfaces as a refactoring of the current code.

Signed-off-by: Tibor Vass <tibor@docker.com>
2015-10-06 19:10:19 -04:00
Tibor Vass
f41230b93a Move builder files to builder/dockerfile
Signed-off-by: Tibor Vass <tibor@docker.com>
2015-10-05 18:26:47 -04:00
Renamed from builder/evaluator.go (Browse further)