feat: add 'imagePullPolicy' parameter for 'goctl kube deploy' (#1996)

tools/goctl/kube/cmd.go

@@ -3,25 +3,26 @@ package kube
 import "github.com/spf13/cobra"
 
 var (
-	varStringName           string
-	varStringNamespace      string
-	varStringImage          string
-	varStringSecret         string
-	varIntRequestCpu        int
-	varIntRequestMem        int
-	varIntLimitCpu          int
-	varIntLimitMem          int
-	varStringO              string
-	varIntReplicas          int
-	varIntRevisions         int
-	varIntPort              int
-	varIntNodePort          int
-	varIntMinReplicas       int
-	varIntMaxReplicas       int
-	varStringHome           string
-	varStringRemote         string
-	varStringBranch         string
-	varStringServiceAccount string
+	varStringName            string
+	varStringNamespace       string
+	varStringImage           string
+	varStringSecret          string
+	varIntRequestCpu         int
+	varIntRequestMem         int
+	varIntLimitCpu           int
+	varIntLimitMem           int
+	varStringO               string
+	varIntReplicas           int
+	varIntRevisions          int
+	varIntPort               int
+	varIntNodePort           int
+	varIntMinReplicas        int
+	varIntMaxReplicas        int
+	varStringHome            string
+	varStringRemote          string
+	varStringBranch          string
+	varStringServiceAccount  string
+	varStringImagePullPolicy string
 
 	// Cmd describes a kube command.
 	Cmd = &cobra.Command{
@@ -52,6 +53,7 @@ func init() {
 	deployCmd.Flags().IntVar(&varIntNodePort, "nodePort", 0, "The nodePort of the deployment to expose")
 	deployCmd.Flags().IntVar(&varIntMinReplicas, "minReplicas", 3, "The min replicas to deploy")
 	deployCmd.Flags().IntVar(&varIntMaxReplicas, "maxReplicas", 10, "The max replicas to deploy")
+	deployCmd.Flags().StringVar(&varStringImagePullPolicy, "imagePullPolicy", "", "Image pull policy. One of Always, Never, IfNotPresent")
 
 	deployCmd.Flags().StringVar(&varStringHome, "home", "", "The goctl home path of the template, "+
 		"--home and --remote cannot be set at the same time, if they are, --remote has higher priority")

tools/goctl/kube/deployment.tpl

@@ -20,7 +20,8 @@ spec:
       containers:
       - name: {{.Name}}
         image: {{.Image}}
-        lifecycle:
+        {{if .ImagePullPolicy}}imagePullPolicy: {{.ImagePullPolicy}}
+        {{end}}lifecycle:
           preStop:
             exec:
               command: ["sh","-c","sleep 5"]

tools/goctl/kube/kube.go

@@ -29,22 +29,23 @@ var (
 
 // Deployment describes the k8s deployment yaml
 type Deployment struct {
-	Name           string
-	Namespace      string
-	Image          string
-	Secret         string
-	Replicas       int
-	Revisions      int
-	Port           int
-	NodePort       int
-	UseNodePort    bool
-	RequestCpu     int
-	RequestMem     int
-	LimitCpu       int
-	LimitMem       int
-	MinReplicas    int
-	MaxReplicas    int
-	ServiceAccount string
+	Name            string
+	Namespace       string
+	Image           string
+	Secret          string
+	Replicas        int
+	Revisions       int
+	Port            int
+	NodePort        int
+	UseNodePort     bool
+	RequestCpu      int
+	RequestMem      int
+	LimitCpu        int
+	LimitMem        int
+	MinReplicas     int
+	MaxReplicas     int
+	ServiceAccount  string
+	ImagePullPolicy string
 }
 
 // DeploymentCommand is used to generate the kubernetes deployment yaml files.
@@ -82,22 +83,23 @@ func deploymentCommand(_ *cobra.Command, _ []string) error {
 
 	t := template.Must(template.New("deploymentTemplate").Parse(text))
 	err = t.Execute(out, Deployment{
-		Name:           varStringName,
-		Namespace:      varStringNamespace,
-		Image:          varStringImage,
-		Secret:         varStringSecret,
-		Replicas:       varIntReplicas,
-		Revisions:      varIntRevisions,
-		Port:           varIntPort,
-		NodePort:       nodePort,
-		UseNodePort:    nodePort > 0,
-		RequestCpu:     varIntRequestCpu,
-		RequestMem:     varIntRequestMem,
-		LimitCpu:       varIntLimitCpu,
-		LimitMem:       varIntLimitMem,
-		MinReplicas:    varIntMinReplicas,
-		MaxReplicas:    varIntMaxReplicas,
-		ServiceAccount: varStringServiceAccount,
+		Name:            varStringName,
+		Namespace:       varStringNamespace,
+		Image:           varStringImage,
+		Secret:          varStringSecret,
+		Replicas:        varIntReplicas,
+		Revisions:       varIntRevisions,
+		Port:            varIntPort,
+		NodePort:        nodePort,
+		UseNodePort:     nodePort > 0,
+		RequestCpu:      varIntRequestCpu,
+		RequestMem:      varIntRequestMem,
+		LimitCpu:        varIntLimitCpu,
+		LimitMem:        varIntLimitMem,
+		MinReplicas:     varIntMinReplicas,
+		MaxReplicas:     varIntMaxReplicas,
+		ServiceAccount:  varStringServiceAccount,
+		ImagePullPolicy: varStringImagePullPolicy,
 	})
 	if err != nil {
 		return err