$ show grafana/helm-charts
This repository is the official Helm chart distribution hub for Grafana's observability stack, containing over 20 charts for deploying Loki, Tempo, Mimir, Promtail, Grafana Agent, enterprise metrics/logs, and supporting components (rollout-operator, pdc-agent, snyk-exporter, etc.) on Kubernetes. The codebase is entirely Helm templates, values files, CRDs, and CI/CD scripts—no application source code. The architecture follows standard Helm patterns with per-component subdirectories, shared helpers, and extensive use of conditional logic for enterprise features, scaling, and storage backends. Many charts are deprecated or have their source maintained in separate product repositories (e.g., grafana/loki, grafana/tempo), with releases still published here. The repository shows signs of technical drift (old API versions, duplicated template logic, legacy dependencies) but remains actively maintained for the remaining non-deprecated charts with recent CI updates and release automation. It serves as both a legacy archive and an active distribution point.
The LLM identified 2 files worth highlighting for reuse:
Defines a reusable pod template for the Promtail agent, including the main container (promtail) and a config-reloader sidecar. This pattern allows the chart to use the same pod spec in both DaemonSet and Deployment templates, reducing duplication. The template is parameterized via values to customize container resources, env vars, volumes, and security context, making it a clean example of Helm template reuse.
A collection of reusable Helml helper templates for PodDisruptionBudget (pdb.tpl) and ServiceMonitor (service-monitor.tpl) resources. These templates encapsulate common patterns for creating PDBs with configurable maxUnavailable and ServiceMonitors with namespace selectors and relabelings. They are designed to be called from component templates, promoting consistency across the tempo-distributed chart's microservise architecture. While tightly coupled to the chart's internal naming conventions, the abstraction pattern is straightforward to extract for use in other charts.