When building csdr docker image (in Github Actions), it is very slow and seems like a cache is not being used. It should be faster on reruns. Locally reruns are very fast.

[willjnz]

[willjnz]

This is a common issue that seems easy to resolve:
https://docs.docker.com/build/ci/github-actions/cache/#github-cache
https://www.blacksmith.sh/blog/cache-is-king-a-guide-for-docker-layer-caching-in-github-actions

[willjnz]

csdr-cloud-spatial/.github/workflows/build-test-docker.yml

Line 126 in 2baafae

# Cache docker stuff