Deprecation: change --stream error to a warning, and update deprecated.md #2809
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Member
Author
Codecov Report
@@ Coverage Diff @@
## master #2809 +/- ##
==========================================
- Coverage 57.14% 57.13% -0.01%
==========================================
Files 297 297
Lines 18639 18642 +3
==========================================
Hits 10651 10651
- Misses 7129 7132 +3
Partials 859 859 |
cpuguy83
reviewed
Oct 23, 2020
cli/command/image/build.go
Outdated
|
|
||
| if options.stream { | ||
| return errors.New("Experimental flag --stream was removed, enable BuildKit instead with DOCKER_BUILDKIT=1") | ||
| _, _ = fmt.Fprint(dockerCli.Err(), `DEPRECATED: The experimental --stream flag is deprecated and the build context |
Member
Author
There was a problem hiding this comment.
I was a bit in doubt, as the flag is "technically" still there, but yeah from a user's perspective, I guess we could say it's removed.
cpuguy83
reviewed
Oct 23, 2020
| if options.stream { | ||
| return errors.New("Experimental flag --stream was removed, enable BuildKit instead with DOCKER_BUILDKIT=1") | ||
| _, _ = fmt.Fprint(dockerCli.Err(), `DEPRECATED: The experimental --stream flag is deprecated and the build context | ||
| will be sent non-streaming. Enable BuildKit instead with DOCKER_BUILDKIT=1 |
Collaborator
There was a problem hiding this comment.
"Consider using BuildKit instead", maybe with a doc link?
Member
Author
There was a problem hiding this comment.
Good suggestion; I recently added docker/docs#11460, and this would be a good candidate for that. Need to check if we have a good location already to point users to (on how to enable buildkit).
can then add a URL like https://docs.docker.com/go/buildkit
Member
Author
There was a problem hiding this comment.
Opened docker/docs#11621 to implement https://docs.docker.com/go/buildkit/ as a redirect
While performance will be worse, we can safely ignore the --stream
option when used, and print a deprecation warning instead of failing
the build.
With this patch:
echo -e "FROM scratch\nLABEL foo=bar" | docker build --stream -
DEPRECATED: The experimental --stream flag has been removed and the build context
will be sent non-streaming. Enable BuildKit instead with DOCKER_BUILDKIT=1
to stream build context, see https://docs.docker.com/go/buildkit/
Sending build context to Docker daemon 2.048kB
Step 1/2 : FROM scratch
--->
Step 2/2 : LABEL foo=bar
---> Running in 99e4021085b6
Removing intermediate container 99e4021085b6
---> 1a7a41be241f
Successfully built 1a7a41be241f
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Docker v17.07 introduced an experimental `--stream` flag on `docker build` which allowed the build-context to be incrementally sent to the daemon, instead of unconditionally sending the whole build-context. This functionality has been reimplemented as part of BuildKit, which uses streaming by default and the `--stream` option will be ignored when using the classic builder, printing a deprecation warning instead. Users that want to use this feature are encouraged to enable BuildKit by setting the `DOCKER_BUILDKIT=1` environment variable or through the daemon or CLI configuration files. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Member
Author
|
Updated; PTAL |
tonistiigi
approved these changes
Oct 26, 2020
tiborvass
approved these changes
Oct 26, 2020
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
6 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Relates to #2105
Relates to moby/moby#39983
Addresses docker-archive/docker-ce#660 (comment)
builder: print deprecation warning instead of failing for
--streamWhile performance will be worse, we can safely ignore the
--streamoption when used, and print a deprecation warning instead of failing the build.With this patch:
Deprecation: add experimental docker build --stream option
Docker v17.07 introduced an experimental
--streamflag ondocker buildwhichallowed the build-context to be incrementally sent to the daemon, instead of
unconditionally sending the whole build-context.
This functionality has been reimplemented as part of BuildKit, which uses streaming
by default and the
--streamoption will be ignored when using the classic builder,printing a deprecation warning instead.
Users that want to use this feature are encouraged to enable BuildKit by setting
the
DOCKER_BUILDKIT=1environment variable or through the daemon or CLI configurationfiles.