Add docker-compose tag <service> <tag> and allow to push a specific tag by using push command

[Jokero]

Is your feature request related to a problem? Please describe.
I have several applications with their own Dockerfile within one project and in order to build, launch and test them locally I'm using docker-compose.

It seems like a good idea to reuse docker-compose commands to build, test and push images to registry from CI, so I decided to use them in Jenkinsfile. Project has package.json file with current version which is incremented during CI build. This version is used as tag for docker images.

docker-compose.yaml:

version: '2'

services:
  app1:
    image: my-registry.com/app1
    build:
      context: ./app1
    // other fields
  app2:
    image: my-registry.com/app2
    build:
      context: ./app2
    // other fields
  app3:
    image: my-registry.com/app3
    build:
      context: ./app3
    // other fields

The current CI pipeline looks as follows:

1) Build images
docker-compose build // generates images with "latest" tag

2) Test images
docker-compose run --rm app1 <test command> // the same for app2 and app3

3) If tests passed, increment version and use it as the next docker tag
npm version <patch/minor/major>
newVersion = readJSON('package.json').version

4) Tag and push images
composeServices = readYaml('docker-compose.yaml').services // { app1: { image: my-registry.com/app1 }, ... }
image = composeServices.app1.image // the same for app2 and app3
docker tag <image> <image>:<newVersion>
docker push <image>:<newVersion>

This pipeline works but I have to read compose file to get image that will be used in "docker tag" and "docker push" commands.

Describe the solution you'd like
I'd like to have a new command:

docker-compose tag <service> <tag>
// for my example
docker-compose tag app1 <version from updated package.json>

And I want "push" command to support tag postfix:

docker-compose push <service>:<tag>
// for my example
docker-compose push app1:<version from updated package.json>

Describe alternatives you've considered
Using "docker tag" and "docker push" explicitly but for that I need to read images from docker-compose.yaml file

[so-jelly]

docker-compose "extends" works for me

version: "2.4"
services:
  foo:
    image: foo:${version:-dev}
    build:
      context: .
  foo-latest:
    extends: foo
    image: bar:latest

[existe-deja]

extends can work. But tagging after a build could be very useful, especially for CI pipelines.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[thetic]

I am still interested in this functionality.

[stale]

This issue has been automatically marked as not stale anymore due to the recent activity.

[abdennour]

I am still interested in this functionality.

[neverkas]

I am still interested in this functionality.

[Pakoke]

I am still interested in this functionality.
Could we please have some feedback about this change?

[abdennour]

I have already implemented this feature. I opened the pull request since 2 months. Check #9052

@Pakoke @neverkas FYI

[glours]

We're currently working on adding some capabilities to the build step at the Compose specification level (like specify tags), I hope we can propose something soon and then we'll be able to implement the changes into Compose (v2)

[cyberdevnet]

any update about this feature?

[glours]

Support of tags during build step has been added to the v2.6.0 release
We don't plan to add a specific tag command

[thetic]

Cool! This looks like a useful and related feature, but I don't think this addresses the use case described.

[jmfrees]

Support of tags during build step has been added to the v2.6.0 release We don't plan to add a specific tag command

Since they don't plan to support the feature added in #9051, I accomplish the same thing in a more generic environment than Jenkins.

docker compose images | awk '(NR>1) { print $2 }' > image_names
export OLD_VERSION=foo
export VERSION=bar
cat image_names | xargs -I{} docker tag {}:$OLD_VERSION {}:$VERSION
cat image_names | xargs -I{} docker push -a {}  

I would really love it if docker compose tag was a thing, but this will do for now.