Sync cos-customizer from Github@4720edcc

Manually cherry pick changes from cos-customizer @ github.
cherry picked patches generated within
c1b59e6c88c59e0634ede3c1fcad57c17f23fd9b and
4720edcc8e7aa3f42fd337ae6e1c404ee6d66c61.

Additionally:
1. fixed import paths for cos-customizer.
2. ran `go mod tidy`

Tested cos-customizer functionality by invoking `./run_tests.sh`

BUG=b/183723779

Change-Id: I8b8bb88da0a38271f553b41f1f7b2f882938dacd
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/21450
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Tested-by: Arnav Kansal <rnv@google.com>
75 files changed
tree: 033a18d126081c63d1d2b314d9e4191125a1cb57
  1. release/
  2. src/
  3. testing/
  4. BUILD.bazel
  5. cloudbuild.yaml
  6. CONTRIBUTING.md
  7. deps.bzl
  8. go.mod
  9. go.sum
  10. LICENSE
  11. README.md
  12. run_tests.sh
  13. WORKSPACE
README.md

Tools for Container-Optimized OS

This is a repository of various tools developed for Container-Optimized OS. Examples include cos-gpu-installer, cos-toolbox, etc.

See CONTRIBUTING.md for how to contribute.