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.opencode/skills/devops/references/kubernetes-helm.md

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+# Helm Package Management
+
+## Core Concepts
+
+- **Chart:** Helm package with K8s resource definitions
+- **Repository:** Collection of charts
+- **Release:** Deployed instance of a chart
+- **Values:** Configuration that parameterizes charts
+
+## Chart Structure
+
+```
+mychart/
+├── Chart.yaml              # Metadata
+├── values.yaml             # Default values
+├── charts/                 # Dependencies
+├── templates/
+│   ├── deployment.yaml
+│   ├── service.yaml
+│   ├── _helpers.tpl       # Template helpers
+│   └── NOTES.txt
+└── values.schema.json     # Validation (optional)
+```
+
+## Essential Commands
+
+```bash
+helm create mychart           # Create chart
+helm lint mychart             # Validate
+helm template myrelease ./mychart  # Render locally
+helm install myrelease ./mychart --dry-run --debug  # Preview
+
+helm install myrelease ./mychart
+helm install myrelease ./mychart -f values-prod.yaml
+helm install myrelease ./mychart --set replicaCount=3
+
+helm upgrade myrelease ./mychart
+helm rollback myrelease 1
+helm list
+helm uninstall myrelease
+```
+
+## Multi-Environment
+
+```bash
+# Files: values.yaml, values-dev.yaml, values-prod.yaml
+helm install myapp ./mychart -f values.yaml -f values-prod.yaml
+helm install myapp ./mychart --set replicaCount=3 --set image.tag=v1.2.3
+```
+
+## values.yaml Example
+
+```yaml
+replicaCount: 2
+image:
+  repository: myapp
+  tag: "1.0.0"
+  pullPolicy: IfNotPresent
+service:
+  type: ClusterIP
+  port: 8080
+resources:
+  limits: { cpu: 500m, memory: 512Mi }
+  requests: { cpu: 250m, memory: 256Mi }
+```
+
+## Dependencies
+
+```yaml
+# Chart.yaml
+dependencies:
+  - name: postgresql
+    version: "12.1.0"
+    repository: "https://charts.bitnami.com/bitnami"
+```
+
+```bash
+helm dependency update mychart
+```
+
+See `kubernetes-helm-advanced.md` for templates, hooks, and packaging.