This forces the docker build to always try and pull the latest image, so that our local cache doesn't make our newly-built images use old base images.
The --pull flag does not disable the cache. Docker will first check the hashes of the upstream image layers, and only if they don't match with the cached layers then it will start downloading the up-to-date layers.
CHANGELOG.mdfile, according to docs: https://iver-wharf.github.io/#/development/changelogs/writing-changelogsSummary
--pulltodocker buildinMakefileMotivation
This forces the docker build to always try and pull the latest image, so that our local cache doesn't make our newly-built images use old base images.
The
--pullflag does not disable the cache. Docker will first check the hashes of the upstream image layers, and only if they don't match with the cached layers then it will start downloading the up-to-date layers.This was brought up in a PR discussion: https://github.com/iver-wharf/wharf-web/pull/66#discussion_r706091268
Skipping adding to CHANGELOG.md as this is such a minor change.