Add retry logic for transient login failures

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Adds configurable retry mechanism with basic exponential backoff to handle intermittent failures when authenticating to container registries, particularly GCP (GAR/GCR) where I'm seeing errors intermittently.

- Add retry-attempts input (default: 0 for backward compatibility, making it opt in)
- Add retry-delay input (default: 5000ms)
- Implement exponential backoff retry logic in docker login
  - Chose to just write a simple retry function vs. going with a library
- Retry all errors except 5xxs
  - I'm seeing intermittent 401 failures
- Add tests for retry behavior
- Update README with new input parameters

Signed-off-by: Naush Korai <naush.korai@mixpanel.com>

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Naush Korai 2026-01-30 13:32:24 -05:00

parent 3227f5311c

commit 47690b2d19

7 changed files with 201 additions and 32 deletions

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