如何保存 Github Actions docker 图像的构建结果

Question

Is it possible to save the build of the Github action so that it does not download this action the next time, then the problem is that I created an action that collects php with certain settings and everything is in the docker image, it takes about 2 minutes to beat the date image, which is a lot, since in subsequent executions, it makes no sense to rebuild the whole image and use the result of the build of this image.

Is there some way to cache it or save this docker build of the file somewhere?

Answer 1

You can use the native caching - GitHub has an action for this: https://github.com/actions/cache .

You'd place this caching step before your build step.

Essentially you'd create a key from a hash of a file (eg a manifest file) or directory. Then, the Cache action would check if that key matches the key of the cache. If it matches, the cache is reloaded. If it doesn't match, then in your build step, you'd include an if directive with something like steps.build-cache.outputs.cache-hit != 'true' to ensure that the build step only runs if the cache is invalid.

The docker-layer-caching action is built on actions/cache , and can be used to cache separate build layers of your Docker container.