support k8s deployment yaml generation (#247)

* simplify code, format makefile

* simplify code

* some optimize by kevwan and benying (#240)

Co-authored-by: 杨志泉 <zhiquan.yang@yiducloud.cn>

* optimization (#241)

* optimize docker file generation, make docker build faster

* support k8s deployment yaml generation

Co-authored-by: benying <31179034+benyingY@users.noreply.github.com>
Co-authored-by: 杨志泉 <zhiquan.yang@yiducloud.cn>
Co-authored-by: bittoy <bittoy@qq.com>

tools/goctl/kube/deployment.go

@@ -0,0 +1,117 @@
+package kube
+
+var deploymentTemplate = `apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{.Name}}
+  namespace: {{.Namespace}}
+  labels:
+    app: {{.Name}}
+spec:
+  replicas: {{.Replicas}}
+  revisionHistoryLimit: {{.Revisions}}
+  selector:
+    matchLabels:
+      app: {{.Name}}
+  template:
+    metadata:
+      labels:
+        app: {{.Name}}
+    spec:
+      containers:
+      - name: {{.Name}}
+        image: {{.Image}}
+        lifecycle:
+          preStop:
+            exec:
+              command: ["sh","-c","sleep 5"]
+        ports:
+        - containerPort: {{.Port}}
+        readinessProbe:
+          tcpSocket:
+            port: {{.Port}}
+          initialDelaySeconds: 5
+          periodSeconds: 10
+        livenessProbe:
+          tcpSocket:
+            port: {{.Port}}
+          initialDelaySeconds: 15
+          periodSeconds: 20
+        resources:
+          requests:
+            cpu: {{.RequestCpu}}m
+            memory: {{.RequestMem}}Mi
+          limits:
+            cpu: {{.LimitCpu}}m
+            memory: {{.LimitMem}}Mi
+        volumeMounts:
+        - name: timezone
+          mountPath: /etc/localtime
+      imagePullSecrets:
+      - name: {{.Secret}}
+      volumes:
+        - name: timezone
+          hostPath:
+            path: /usr/share/zoneinfo/Asia/Shanghai
+
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{.Name}}-svc
+  namespace: {{.Namespace}}
+spec:
+  ports:
+    {{if .UseNodePort}}- nodePort: {{.NodePort}}
+      port: {{.Port}}
+      protocol: TCP
+      targetPort: {{.Port}}
+  type: NodePort{{else}}- port: {{.Port}}{{end}}
+  selector:
+    app: {{.Name}}
+
+---
+
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{.Name}}-hpa-c
+  namespace: {{.Namespace}}
+  labels:
+    app: {{.Name}}-hpa-c
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{.Name}}
+  minReplicas: {{.MinReplicas}}
+  maxReplicas: {{.MaxReplicas}}
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      targetAverageUtilization: 80
+
+---
+
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{.Name}}-hpa-m
+  namespace: {{.Namespace}}
+  labels:
+    app: {{.Name}}-hpa-m
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{.Name}}
+  minReplicas: {{.MinReplicas}}
+  maxReplicas: {{.MaxReplicas}}
+  metrics:
+  - type: Resource
+    resource:
+      name: memory
+      targetAverageUtilization: 80
+`