devx/docs/specs/DEVX-164.md

DEVX-164: Increase HTTP 500 retry count and backoff for docker push

Problem

The HTTP 500 retry logic (DEVX-162, DEVX-163) works correctly — 3 retry attempts are made. But all 3 attempts fail because the Gitea registry's "offset mismatch" race condition needs more than ~15s to recover. The current backoff is 5s-20s with 3 attempts (total ~15s of waiting).

Approach

Increase retry count from 3 to 5 and backoff from 5-20s to 10-60s, giving the registry up to ~2 minutes to recover. Add visible logging between retry attempts so the CI logs show the retry happening.

REQ-1: Increase retry count from 3 to 5 REQ-2: Increase backoff from 5-20s to 10-60s exponential REQ-3: Add visible logging between retry attempts (click.echo) REQ-4: All tests pass with 100% coverage

Test Plan

• Unit tests verify retry count and backoff parameters
• Unit tests verify logging output on retry
• Manual: trigger build-images workflow and verify retries visible in logs

Deploy Plan

• Merge to master

Rollback Plan

• Revert the merge commit

Acceptance Criteria

• REQ-1: Increase retry count from 3 to 5
• REQ-2: Increase backoff from 5-20s to 10-60s exponential
• REQ-3: Add visible logging between retry attempts (click.echo)
• REQ-4: All tests pass with 100% coverage