171 lines
3.5 KiB
Markdown
171 lines
3.5 KiB
Markdown
---
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description: Create Kubernetes deployments and services
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---
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# Kubernetes Deployment Creator
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Generate production-ready Kubernetes manifests with best practices.
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## K8s Resources Generated
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1. **Deployment**: Application pods with replicas
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2. **Service**: Load balancing and discovery
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3. **ConfigMap**: Configuration management
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4. **Secret**: Sensitive data storage
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5. **Ingress**: External access routing
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6. **HPA**: Horizontal pod autoscaling
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## Example Deployment (Full Stack App)
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```yaml
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: web-app
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namespace: production
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labels:
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app: web-app
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version: v1
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spec:
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replicas: 3
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selector:
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matchLabels:
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app: web-app
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strategy:
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type: RollingUpdate
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rollingUpdate:
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maxSurge: 1
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maxUnavailable: 0
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template:
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metadata:
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labels:
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app: web-app
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version: v1
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spec:
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containers:
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- name: web
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image: myapp:1.0.0
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ports:
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- containerPort: 8080
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name: http
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env:
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- name: DATABASE_URL
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valueFrom:
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secretKeyRef:
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name: db-credentials
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key: url
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- name: REDIS_HOST
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valueFrom:
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configMapKeyRef:
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name: app-config
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key: redis-host
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resources:
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requests:
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cpu: 100m
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memory: 128Mi
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limits:
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cpu: 500m
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memory: 512Mi
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livenessProbe:
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httpGet:
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path: /health
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port: 8080
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initialDelaySeconds: 30
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periodSeconds: 10
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readinessProbe:
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httpGet:
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path: /ready
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port: 8080
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initialDelaySeconds: 5
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periodSeconds: 5
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volumeMounts:
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- name: config
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mountPath: /app/config
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readOnly: true
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volumes:
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- name: config
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configMap:
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name: app-config
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: web-app-service
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namespace: production
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spec:
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type: ClusterIP
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selector:
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app: web-app
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ports:
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- port: 80
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targetPort: 8080
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name: http
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---
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apiVersion: networking.k8s.io/v1
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kind: Ingress
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metadata:
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name: web-app-ingress
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namespace: production
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annotations:
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cert-manager.io/cluster-issuer: letsencrypt-prod
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nginx.ingress.kubernetes.io/rate-limit: "100"
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spec:
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ingressClassName: nginx
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tls:
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- hosts:
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- app.example.com
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secretName: app-tls
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rules:
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- host: app.example.com
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http:
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paths:
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- path: /
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pathType: Prefix
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backend:
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service:
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name: web-app-service
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port:
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number: 80
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---
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apiVersion: autoscaling/v2
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kind: HorizontalPodAutoscaler
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metadata:
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name: web-app-hpa
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namespace: production
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spec:
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scaleTargetRef:
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apiVersion: apps/v1
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kind: Deployment
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name: web-app
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minReplicas: 3
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maxReplicas: 10
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metrics:
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- type: Resource
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resource:
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name: cpu
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target:
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type: Utilization
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averageUtilization: 70
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- type: Resource
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resource:
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name: memory
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target:
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type: Utilization
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averageUtilization: 80
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```
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## Best Practices Included
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- Resource requests and limits
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- Health checks (liveness/readiness)
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- Rolling update strategy
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- Horizontal pod autoscaling
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- ConfigMaps and Secrets
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- Ingress with TLS
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- Network policies
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- Pod disruption budgets
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## When Invoked
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Generate complete Kubernetes manifests for deploying applications with production-grade configurations.
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