Add --preserve-name flag (#34)

The resources name will be same as input when true.
Default: false - Existing logic

README.md

@@ -38,6 +38,7 @@ chartify create NAME [FLAGS]
       --services stringSlice         Specify the names of services(service@namespace) to include in chart
       --statefulsets stringSlice     Specify the names of statefulsets(statefulset@namespace) to include in chart
       --storageclasses stringSlice   Specify the names of storageclasses(storageclass@namespace) to include in chart
+      --preserve-name bool           Specify if you want to preserve resources name from input yaml true/false (default: false)
 ```
 
 ### Issues

pkg/cmd/create.go

@@ -14,6 +14,7 @@ func NewCmdCreate() *cobra.Command {
 	var (
 		kubeDir  string
 		chartDir string
+		preserveName bool
 	)
 	ko := pkg.KubeObjects{}
 
@@ -29,6 +30,7 @@ func NewCmdCreate() *cobra.Command {
 				Location:  checkLocation(chartDir),
 				ChartName: args[0],
 			}
+			pkg.PreserveName = preserveName
 			if len(kubeDir) != 0 {
 				gen.YamlFiles = pkg.ReadLocalFiles(kubeDir)
 			} else {
@@ -44,6 +46,7 @@ func NewCmdCreate() *cobra.Command {
 	}
 	cmd.Flags().StringVar(&kubeDir, "kube-dir", "", "Specify the directory of the yaml files for Kubernetes objects")
 	cmd.Flags().StringVar(&chartDir, "chart-dir", "charts", "Specify the location where charts will be created")
+	cmd.Flags().BoolVar(&preserveName, "preserve-name", false, "Specify if you want to preserve resources name from input yaml true/false (default: false)")
 	cmd.Flags().StringSliceVar(&ko.ConfigMaps, "configmaps", ko.ConfigMaps, "Specify the names of configmaps(configmap@namespace) to include in chart")
 	cmd.Flags().StringSliceVar(&ko.Daemons, "daemons", ko.Daemons, "Specify the names of daemons(daemon@namespace) to include in chart")
 	cmd.Flags().StringSliceVar(&ko.Deployments, "deployments", ko.Deployments, "Specify the names of deployments(deployments@namespace) to include in chart")

pkg/template_generator.go

@@ -19,12 +19,16 @@ import (
 	"k8s.io/helm/pkg/proto/hapi/chart"
 )
 
+var PreserveName bool
+
 func generateObjectMetaTemplate(objectMeta v1.ObjectMeta, key string, value map[string]interface{}, extraTagForName string) v1.ObjectMeta {
-	if len(objectMeta.Name) != 0 {
-		objectMeta.Name = fmt.Sprintf(`{{ template "fullname" . }}`)
-	}
-	if len(extraTagForName) != 0 {
-		objectMeta.Name = fmt.Sprintf("%s-%s", objectMeta.Name, extraTagForName)
+	if !PreserveName {
+		if len(objectMeta.Name) != 0 {
+			objectMeta.Name = fmt.Sprintf(`{{ template "fullname" . }}`)
+		}
+		if len(extraTagForName) != 0 {
+			objectMeta.Name = fmt.Sprintf("%s-%s", objectMeta.Name, extraTagForName)
+		}
 	}
 	if len(objectMeta.ClusterName) != 0 {
 		value[ClusterName] = objectMeta.ClusterName

testdata/replicaset/output/replicaset_chart.yaml

@@ -23,7 +23,7 @@ spec:
       containers:
       - env:
         - name: GET_HOSTS_FROM
-          value: '{{.Values.frontend.phpredis.GETHOSTSFROM}}'
+          value: '{{.Values.frontend.phpredis.gethostsfrom}}'
         image: '{{.Values.frontend.phpredis.image}}:{{.Values.frontend.phpredis.imageTag}}'
         imagePullPolicy: '{{.Values.frontend.phpredis.imagePullPolicy}}'
         name: php-redis

testdata/replicaset/output/replicaset_value.yaml

@@ -1,6 +1,6 @@
 namespace: default
 phpredis:
-  GETHOSTSFROM: dns
+  gethostsfrom: dns
   image: gcr.io/google_samples/gb-frontend
   imagePullPolicy: IfNotPresent
   imageTag: v3