ArgoCD Quick Reference Guide
ArgoCD Quick Reference Guide Common Operations Installation # Install ArgoCD kubectl create namespace argocd kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml # Access the UI kubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "NodePort"}}' # Get initial admin password kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d Application Management # Create new application argocd app create myapp \ --repo https://github.com/your-org/your-app.git \ --path kustomize \ --dest-server https://kubernetes.default.svc \ --dest-namespace default # Sync application argocd app sync myapp # Get application status argocd app get myapp # Delete application argocd app delete myapp User Management # Add cluster admin argocd account update-password \ --current-password <initial-password> \ --new-password <new-password> # Create project argocd proj create myproject \ --description "My new project" \ --src https://github.com/your-org/* \ --dest https://kubernetes.default.svc,default Quick Troubleshooting Health Checks # Check pod health kubectl get pods -n argocd # Check logs kubectl logs -n argocd -l app.kubernetes.io/name=argocd-server # Verify sync status argocd app get myapp --refresh Common Issues & Solutions Sync Failed Check application logs: argocd app logs myapp Verify Git credentials: argocd repo list Test repository access: argocd repo test https://github.com/your-org/your-app.git Access Issues Reset admin password: argocd admin initial-password -n argocd Check RBAC: kubectl get cm argocd-rbac-cm -n argocd -o yaml Quick Configurations SSL/TLS Setup apiVersion: cert-manager.io/v1 kind: Certificate metadata: name: argocd-cert namespace: argocd spec: secretName: argocd-server-tls issuerRef: name: letsencrypt-prod kind: ClusterIssuer dnsNames: - argocd.your-domain.com Basic Auth Integration apiVersion: v1 kind: ConfigMap metadata: name: argocd-cm namespace: argocd data: accounts.admin: apiKey,login Environment-Specific Examples Development apiVersion: argoproj.io/v1alpha1 kind: Application metadata: name: dev-app spec: source: repoURL: https://github.com/your-org/your-app.git targetRevision: develop path: k8s/dev destination: server: https://kubernetes.default.svc namespace: development Production apiVersion: argoproj.io/v1alpha1 kind: Application metadata: name: prod-app spec: source: repoURL: https://github.com/your-org/your-app.git targetRevision: main path: k8s/prod destination: server: https://kubernetes.default.svc namespace: production syncPolicy: automated: prune: true selfHeal: true Network Configurations Ingress Example apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: argocd-ingress annotations: nginx.ingress.kubernetes.io/ssl-passthrough: "true" cert-manager.io/cluster-issuer: letsencrypt-prod spec: rules: - host: argocd.your-domain.com http: paths: - path: / pathType: Prefix backend: service: name: argocd-server port: number: 443 Network Policy apiVersion: networking.k8s.io/v1 kind: NetworkPolicy metadata: name: argocd-server-network-policy namespace: argocd spec: podSelector: matchLabels: app.kubernetes.io/name: argocd-server ingress: - from: - namespaceSelector: matchLabels: name: ingress-nginx Monitoring Quick Setup Prometheus Rules apiVersion: monitoring.coreos.com/v1 kind: PrometheusRule metadata: name: argocd-rules namespace: monitoring spec: groups: - name: argocd.rules rules: - alert: ArgoCDSyncFailed expr: argocd_app_sync_status{status="Failed"} > 0 for: 5m labels: severity: critical Next Steps For detailed information, refer to: ...