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Dashboard Validator App - Prometheus support Validates dashboard compatibility with Prometheus datasources. The app analyzes dashboard queries against available metrics to produce a compatibility score. Backend (Go): - App scaffolding with grafana-app-sdk, custom `/check` endpoint - Prometheus validator: parses PromQL queries, fetches available metrics, and computes per-query and per-datasource compatibility - Metric caching, input validation, request timeouts, and structured error handling (not found, unreachable, auth, timeout) - Custom authorizer with role-based access control - Datasource-scoped validation and variable interpolation support Frontend (React/TypeScript): - API client for the validator backend - Compatibility badge inline on community dashboards - Detail modal showing per-datasource and per-query results - Gated behind dashboardValidatorApp feature flag Tests: - Go unit tests for parser, fetcher, validator, and JSON serialization - Dashboard query extraction tests |
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