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>
Allow built images to be squash to scratch.
Squashing does not destroy any images or layers, and preserves the
build cache.
Introduce a new CLI argument --squash to docker build
Introduce a new param to the build API endpoint `squash`
Once the build is complete, docker creates a new image loading the diffs
from each layer into a single new layer and references all the parent's
layers.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
As is seem in the comment of `normaliseWorkdir` for windows:
```
...
// WORKDIR c:\\foo --> C:\foo
// WORKDIR \\foo --> C:\foo
...
```
However, this is not the case in the current implementation because
`filepath.FromSlash` is used and `FromSlash` does not replace multiple
separator with a single one (`file.Clean` does).
So `normaliseWorkdir` does not truly normalize workdir.
This fix changes the implementation of `normaliseWorkdir` and use
`filepath.Clean` instead of `filepath.FromSlash`.
Additional test cases have been added to the unit test.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Just to help the next time someone goes looking for it while debugging.
Like @jhowardmsft and I did while looking at #27545.
Signed-off-by: Doug Davis <dug@us.ibm.com>
This fix tries to fix the bug reported by #24693 where an empty
line after escape will not be stopped by the parser.
This fix addresses this issue by stop the parser from continue
with an empty line after escape.
An additional integration test has been added.
This fix fixes#24693.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
The `archive` package defines aliases for `io.ReadCloser` and
`io.Reader`. These don't seem to provide an benefit other than type
decoration. Per this change, several unnecessary type cases were
removed.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
While look at #27039 I noticed that we allow for whitespace after
the continuation char (\\) which is wrong. It needs to be the very
last char in the line.
Signed-off-by: Doug Davis <dug@us.ibm.com>
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>
We attached the JSON flag to the wrong AST node, causing Docker to treat
the exec form ["binary", "arg"] as if the shell form "binary arg" had
been used. This failed if "ls" was not present.
Added a test to detect this.
Fixes#26174
Signed-off-by: Thomas Leonard <thomas.leonard@docker.com>
