The nightly Postgres backup CronJob has been **failing every run** — no backups exist in `s3://drops/_pgbackups/`.
**Cause:** the upload container runs as uid 65532 (`runAsNonRoot`). `mc` defaults its config to `$HOME/.mc` = `/.mc` and dies with `mkdir /.mc: permission denied` on the non-writable root fs — before any upload.
**Fix:** set `MC_CONFIG_DIR=/work/.mc` (the shared emptyDir, writable via `fsGroup: 65532`). The `pg_dump` initContainer already succeeds; this lets the upload step actually run.
Validated: `kubectl kustomize` renders clean; env present on the upload container.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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Co-authored-by: Danijel Simeunovic <danijel.simeunovic@fortedigital.com>
Co-authored-by: Sten <sten@Sten-sin-MacBook-Pro.local>
Reviewed-on: #23
Reviewed-by: Danijel Simeunovic <danijel.simeunovic@fortedigital.com>
Co-authored-by: Jørgen Stensrud <jorgen.stensrud@fortedigital.com>
Co-committed-by: Jørgen Stensrud <jorgen.stensrud@fortedigital.com>