Draft: CI: attempt DIND use container-snapshotter, reduce layer sizes
What does this MR do?
Attempt using the containerd image store patterns, and snapshot methods.
This changes from default overlay2
to overlayfs
in order to work,
but investigation shows the resulting layer patterns appear to be much
smaller for several stage/layer patterns.
- See https://docs.docker.com/storage/containerd/
- See gitlab-org/cloud-native/distroless/ubi#52 (closed)
Related issues
Checklist
See Definition of done.
For anything in this list which will not be completed, please provide a reason in the MR discussion
Required
-
Merge Request Title, and Description are up to date, accurate, and descriptive -
MR targeting the appropriate branch -
MR has a green pipeline on GitLab.com -
When ready for review, MR is labeled "~workflow::ready for review" per the Distribution MR workflow
Expected (please provide an explanation if not completing)
-
Test plan indicating conditions for success has been posted and passes -
Documentation created/updated -
Integration tests added to GitLab QA -
The impact any change in container size has should be evaluated -
New dependencies are managed with dependencies.io