best practice on avoid using cache images with build args

[Ke Zhu]

The problem is only appears when using a dockerfile with build stages
from a git module. when passing build args over skaffold.yaml, the
revision didn't change, so it either caches old image locally without
building it, or the image is cached on k8s cluster since the tag is not
changed.

What's the best practice on resolving above problem?

[Nick Kubala]

Does the `--cache-artifacts=false` flag not avoid the image being cached locally? This won't bypass docker's build cache but it will skip Skaffold's image artifact cache. Otherwise the `--no-cache` flag passed as a build arg in your docker build config in your skaffold.yaml should skip docker's build cache, though if that isn't being respected then we might need to open an issue.

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[Ke Z]

Thanks for the reply!

I will try `--cache-artifacts=false` so that it should work on build severs. I'm going to try `ARG CACHE_BUST` in Dockerfile to see if I can bypass docker build cache.