Question: Does the docker build check the repository?

[tomeichlersmith]

I am using this action to build an image with a lot of dependencies in it for the application I am developing. These several dependencies take a long time to build and install onto the docker image, and therefore the docker image takes a long time to build.

When I am developing the docker image locally, the docker cache stores the intermediate layers so that it only needs to rebuild the layers after and including any changes I made. I am wondering if this action has a similar feature. Does it pull down the image from dockerhub to see which layer to start from?

Thank you

[hholst80]

Nope. But check this. https://dev.to/dtinth/caching-docker-builds-in-github-actions-which-approach-is-the-fastest-a-research-18ei

[tomeichlersmith]

Awesome, thank you very much.

[crazy-max]

@tomeichlersmith This will be available through build-push-action v2 (#92) which uses buildx. You can already try it with:

• https://github.com/docker/setup-buildx-action
• https://github.com/docker/setup-qemu-action
• https://github.com/docker/login-action

[crazy-max]

Version 2 has been merged to the main branch and is therefore available via uses: docker/build-push-action@v2 (mutable tag).

As a reminder, this new version changes drastically and works with 3 new actions (login, setup-buildx and setup-qemu) that we have created. Many usage examples have been added to handle most use cases.

And it should fix this current issue. Don't hesitate if you have any questions.