Repomix server monitoring

Cloud Monitoring dashboard definition for repomix-server-us.

Log-based metrics used by the dashboard are managed directly in the GCP Console (logging.googleapis.com/user/oom_terminations and container_killed). They persist on the project and do not need to be redefined here.

Turnstile siteverify metrics

The dashboard's "Turnstile siteverify latency" and "Turnstile siteverify outcomes" widgets depend on two log-based metrics. Definitions live in metrics/ and are applied once per project:

bash

gcloud logging metrics create turnstile_siteverify_duration \
  --config-from-file=metrics/turnstile_siteverify_duration.yaml \
  --project=repomix

gcloud logging metrics create turnstile_siteverify_outcomes \
  --config-from-file=metrics/turnstile_siteverify_outcomes.yaml \
  --project=repomix

To update an existing metric (e.g. after editing the filter or buckets), swap create for update. Both metrics filter on siteverifyDurationMs field presence so success and failure paths are captured uniformly; the outcome and reason labels on the counter metric drive the breakdown in the "outcomes" widget.

Pre-network rejections (secret_missing, missing_token, token_too_long) intentionally don't carry siteverifyDurationMs — they short-circuit before the timer starts, so they're excluded from both metrics. Those reject reasons still appear in the existing pack_requests metric (under outcome=turnstile_failed) for operational counting, just not in the latency distribution.

The metric filter pins service_name="repomix-server-us", so requests served from any future region (-eu, -asia) silently drop out of the distribution until either the filter is broadened or per-region counterparts are applied. Surface this in the migration plan when adding the next region.

To verify a YAML edit was actually applied to the live metric (gcloud update is silent on no-op vs effective change):

bash

gcloud logging metrics describe turnstile_siteverify_duration --project=repomix

Apply the dashboard

bash

# Create
gcloud monitoring dashboards create --config-from-file=dashboard.json --project=repomix

# Update (use the dashboard ID from `gcloud monitoring dashboards list`)
gcloud monitoring dashboards update projects/repomix/dashboards/<ID> \
  --config-from-file=dashboard.json --project=repomix