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

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+# Kubernetes Workflows
+
+## GitOps Architecture
+
+```
+Git Repository (desired state)
+         │ Watches
+         ▼
+GitOps Agent (Argo CD / Flux)
+         │ Syncs
+         ▼
+Kubernetes Cluster (actual state)
+```
+
+**Benefits:** Single source of truth, auditable, automated, easy rollback
+
+## Argo CD Setup
+
+```bash
+kubectl create namespace argocd
+kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
+kubectl port-forward svc/argocd-server -n argocd 8080:443
+kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d
+```
+
+### Application Manifest
+```yaml
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: myapp
+  namespace: argocd
+spec:
+  project: default
+  source:
+    repoURL: https://github.com/myorg/myapp
+    targetRevision: HEAD
+    path: k8s/manifests
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: default
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+```
+
+## Deployment Patterns
+
+### Rolling Update
+```yaml
+spec:
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+```
+
+### Blue-Green
+```yaml
+# Two deployments: myapp-blue, myapp-green
+# Service selector switches between versions
+selector:
+  app: myapp
+  version: blue  # Change to 'green' to switch
+```
+
+### Canary (with Istio)
+```yaml
+route:
+- destination: { host: myapp, subset: v1 }
+  weight: 90
+- destination: { host: myapp, subset: v2 }
+  weight: 10  # 10% canary
+```
+
+See `kubernetes-workflows-advanced.md` for CI/CD, Kustomize patterns.