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Manage golden-signal dashboards as code without trusting drifted panels

A practical Grafana, Terraform, and Prometheus workflow to catch manual edits, broken queries, and risky cardinality before on-call handoff.

Turn critical dashboards into reviewable artifacts: Terraform, promtool tests, bounded Prometheus probes, and a visual canary before production.

Created: August 5, 2026

Published: August 5, 2026

Estimated time35 min

LevelIntermediate

Before you startGrafana permissions to export and import dashboards

PlatformsLinux

WhatsApp X LinkedIn

Linux

Local/CI validation for Terraform-managed Grafana dashboards backed by Prometheus rules.

terraformpromtoolcurljq optional

Plan dashboard changes

terraform init && terraform plan -out tfplan

Test Prometheus rules

promtool test rules tests/api-golden-signals.test.yml

Probe route cardinality

curl -s http://localhost:9090/api/v1/query --data-urlencode 'query=topk(20, count by (service_name,http_route,status_code)(http_server_duration_seconds_count))'

Also available inGestionar dashboards de golden signals como código sin confiar en paneles con drift

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