issue #68 add stable_repo_url to change default stable repository

DOCS.md

@@ -218,13 +218,33 @@ pipeline_production:
     release: ${DRONE_BRANCH}
     values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
     prefix: STAGING
-    dry-run:true
+    dry-run: true
     when:
       branch: [master]
 ```
 
+This plugin init stable repository in the cluster, if you want to specify the stable repository, use the `stable_repo_url` attribute.
+
+The following example will init `stable_repo_url` in the `https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts` repo:
+
+```YAML
+pipeline_production:
+  helm_deploy:
+    image: quay.io/ipedrazas/drone-helm
+    skip_tls_verify: true
+    chart: ./charts/my-chart
+    release: ${DRONE_BRANCH}
+    values: image.tag=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
+    prefix: PROD
+    stable_repo_url: https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts
+    when:
+      branch: [master]
+```
+
+
 Happy Helming!
 
 ## Known issues
 
-* Drone secrets that are part of `values` can be leaked in debug mode and in case of error as the whole helm command will be printed in the logs. See #52
+* Drone secrets that are part of `values` can be leaked in debug mode and in case of error as the whole helm command will be printed in the logs. See #52
+

main.go

@@ -148,6 +148,11 @@ func main() {
 			Usage:  "update dependency charts based on the contents of requirements.yaml file of the local chart",
 			EnvVar: "PLUGIN_UPDATE_DEPENDENCIES,UPDATE_DEPENDENCIES",
 		},
+		cli.StringFlag{
+			Name:   "stable-repo-url",
+			Usage:  "URL for stable repository (default 'https://kubernetes-charts.storage.googleapis.com')",
+			EnvVar: "PLUGIN_STABLE_REPO_URL,STABLE_REPO_URL",
+		},
 	}
 	if err := app.Run(os.Args); err != nil {
 		logrus.Fatal(err)
@@ -189,6 +194,7 @@ func run(c *cli.Context) error {
 			Timeout:            c.String("timeout"),
 			Force:              c.Bool("force"),
 			UpdateDependencies: c.Bool("update-dependencies"),
+			StableRepoURL:      c.String("stable_repo_url"),
 		},
 	}
 	return p.Exec()

plugin/plugin.go

@@ -9,7 +9,6 @@ import (
 	"regexp"
 	"strconv"
 	"strings"
-
 	"text/template"
 )
 
@@ -49,6 +48,7 @@ type (
 		HelmRepos          []string `json:"helm_repos"`
 		Purge              bool     `json:"purge"`
 		UpdateDependencies bool     `json:"update_dependencies"`
+		StableRepoURL      string   `json:"stable_repo_url"`
 	}
 	// Plugin default
 	Plugin struct {
@@ -194,6 +194,10 @@ func doHelmRepoAdd(repo string) ([]string, error) {
 func doHelmInit(p *Plugin) []string {
 	init := make([]string, 1)
 	init[0] = "init"
+	if p.Config.StableRepoURL != "" {
+		init = append(init, "--stable-repo-url")
+		init = append(init, p.Config.StableRepoURL)
+	}
 	if p.Config.TillerNs != "" {
 		init = append(init, "--tiller-namespace")
 		init = append(init, p.Config.TillerNs)

plugin/plugin_test.go

@@ -513,3 +513,30 @@ func TestResolveSecretsFallback(t *testing.T) {
 		t.Errorf("envar ${NOTTOKEN} has not been resolved to 99999, not using prefix")
 	}
 }
+func TestHelmInitByAliyunStableRepo(t *testing.T) {
+	plugin := &Plugin{
+		Config: Config{
+			HelmCommand:   "",
+			Namespace:     "default",
+			SkipTLSVerify: true,
+			Debug:         true,
+			DryRun:        true,
+			Chart:         "./chart/test",
+			Release:       "test-release",
+			Prefix:        "MY",
+			Values:        "image.tag=$TAG,api=${API_SERVER},nameOverride=my-over-app,second.tag=${TAG}",
+			StringValues:  "long_string_value=1234567890",
+			StableRepoURL: "https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts",
+		},
+	}
+	init := doHelmInit(plugin)
+	result := strings.Join(init, " ")
+	expected := "init "
+	if plugin.Config.StableRepoURL != "" {
+		expected = expected + "--stable-repo-url"
+	}
+
+	if expected != result {
+		t.Error("Helm cannot init for stable repository")
+	}
+}