Cached Docker Build

This Github Action caches docker builds using the official actions/cache library.

Github Action Inputs

Variable	Description
args	Required Arguments passed to docker build command
cache_key	Required Key used for caching

Example Usage

uses: mattes/cached-docker-build-action@v1
with:
  args: "--pull --file Dockerfile --tag my-image:tag ."
  cache_key: "${{ hashFiles('**/lockfiles') }}"

Future work

• Implement expires flag, blocked by Clear cache #2.