Use docker compose push to push one image with multiple tags

Question

Now that docker-compose v1 is deprecated in favor of docker compose v2, and the Compose file build section supports a tags subsection, how can I use the old equivalent of docker-compose push to push all the images? Say I have this example docker-compose.yml file:

---
version: "3"

services:

  myservice:
    image: myregistry.com/stuff/myimage:v1.0.0
    build:
      context: ./myimage
      tags:
        - myregistry.com/stuff/myimage:latest

If I follow docker compose build with docker compose push, only the v1.0.0 tag gets pushed. Is there an alternative other than falling back to docker push myregistry.com/stuff/myimage:latest?

Answer 1

I was just investigating the same issue and happened upon your post.

As referenced in this post the code added to handle building with multiple tags was merged into docker compose on 05/23/2022 (so relatively recent). docker compose push doesn't appear to respect that yet.

However, you can use the --all-tags flag to docker push to push all tags of an image which appears to accomplish close to the same objective.

-a, --all-tags Push all tags of an image to the repository

docker push --all-tags myregistry.com/stuff/myimage

Hope this helps!

UPDATE: For any future readers, docker compose push now pushes all tags specified in image and tags sections to the registry.

docker compose push