Fail to load charts that are not v1 apiVersion (#6180)

Signed-off-by: Martin Hickey <martin.hickey@ie.ibm.com>

pkg/chartutil/load.go

@@ -171,6 +171,10 @@ func LoadFiles(files []*BufferedFile) (*chart.Chart, error) {
 				return c, err
 			}
 			c.Metadata = m
+			var apiVersion = c.Metadata.ApiVersion
+			if apiVersion != "" && apiVersion != ApiVersionV1 {
+				return c, fmt.Errorf("apiVersion '%s' is not valid. The value must be \"v1\"", apiVersion)
+			}
 		} else if f.Name == "values.toml" {
 			return c, errors.New("values.toml is illegal as of 2.0.0-alpha.2")
 		} else if f.Name == "values.yaml" {

pkg/chartutil/load_test.go

@@ -23,6 +23,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"strings"
 	"testing"
 	"time"
 
@@ -39,6 +40,17 @@ func TestLoadDir(t *testing.T) {
 	verifyRequirements(t, c)
 }
 
+func TestLoadNonV1Chart(t *testing.T) {
+	_, err := Load("testdata/frobnitz.v2")
+	if err != nil {
+		if strings.Compare(err.Error(), "apiVersion 'v2' is not valid. The value must be \"v1\"") != 0 {
+			t.Errorf("Unexpected message: %s", err)
+		}
+		return
+	}
+	t.Fatalf("chart with v2 apiVersion should not load")
+}
+
 func TestLoadFile(t *testing.T) {
 	c, err := Load("testdata/frobnitz-1.2.3.tgz")
 	if err != nil {

pkg/chartutil/testdata/frobnitz.v2/.helmignore

+ignore/

pkg/chartutil/testdata/frobnitz.v2/Chart.yaml

+apiVersion: v2
+name: frobnitz
+description: This is a frobnitz as a v2 chart
+version: "1.2.3"
+keywords:
+  - frobnitz
+  - sprocket
+  - dodad
+maintainers:
+  - name: The Helm Team
+    email: helm@example.com
+  - name: Someone Else
+    email: nobody@example.com
+sources:
+  - https://example.com/foo/bar
+home: http://example.com
+icon: https://example.com/64x64.png
+annotations:
+  extrakey: extravalue
+  anotherkey: anothervalue

pkg/chartutil/testdata/frobnitz.v2/INSTALL.txt

+This is an install document. The client may display this.

pkg/chartutil/testdata/frobnitz.v2/LICENSE

+LICENSE placeholder.

pkg/chartutil/testdata/frobnitz.v2/README.md

+# Frobnitz
+
+This is an example chart.
+
+## Usage
+
+This is an example. It has no usage.
+
+## Development
+
+For developer info, see the top-level repository.

pkg/chartutil/testdata/frobnitz.v2/charts/_ignore_me

+This should be ignored by the loader, but may be included in a chart.

pkg/chartutil/testdata/frobnitz.v2/charts/alpine/Chart.yaml

+name: alpine
+description: Deploy a basic Alpine Linux pod
+version: 0.1.0
+home: https://k8s.io/helm

pkg/chartutil/testdata/frobnitz.v2/charts/alpine/README.md

+This example was generated using the command `helm create alpine`.
+
+The `templates/` directory contains a very simple pod resource with a
+couple of parameters.
+
+The `values.toml` file contains the default values for the
+`alpine-pod.yaml` template.
+
+You can install this example using `helm install docs/examples/alpine`.

pkg/chartutil/testdata/frobnitz.v2/charts/alpine/charts/mast1/Chart.yaml

+name: mast1
+description: A Helm chart for Kubernetes
+version: 0.1.0
+home: ""

pkg/chartutil/testdata/frobnitz.v2/charts/alpine/charts/mast1/values.yaml

+# Default values for mast1.
+# This is a YAML-formatted file.
+# Declare name/value pairs to be passed into your templates.
+# name = "value"

pkg/chartutil/testdata/frobnitz.v2/charts/alpine/templates/alpine-pod.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: {{.Release.Name}}-{{.Chart.Name}}
+  labels:
+    app.kubernetes.io/managed-by: {{.Release.Service}}
+    chartName: {{.Chart.Name}}
+    chartVersion: {{.Chart.Version | quote}}
+  annotations:
+    "helm.sh/created": "{{.Release.Time.Seconds}}"
+spec:
+  restartPolicy: {{default "Never" .restart_policy}}
+  containers:
+  - name: waiter
+    image: "alpine:3.3"
+    command: ["/bin/sleep","9000"]

pkg/chartutil/testdata/frobnitz.v2/charts/alpine/values.yaml

+# The pod name
+name: "my-alpine"

pkg/chartutil/testdata/frobnitz.v2/docs/README.md

+This is a placeholder for documentation.

pkg/chartutil/testdata/frobnitz.v2/icon.svg

+<?xml version="1.0"?>
+<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg"
+    xmlns:xlink="http://www.w3.org/1999/xlink"
+    version="1.0" width="256" height="256" id="test">
+  <desc>Example icon</desc>
+  <rect id="first" x="2" y="2" width="40" height="60" fill="navy"/>
+  <rect id="second" x="15" y="4" width="40" height="60" fill="red"/>
+</svg>

pkg/chartutil/testdata/frobnitz.v2/requirements.lock

+dependencies:
+  - name: alpine
+    version: "0.1.0"
+    repository: https://example.com/charts
+  - name: mariner
+    version: "4.3.2"
+    repository: https://example.com/charts
+digest: invalid

pkg/chartutil/testdata/frobnitz.v2/requirements.yaml

+dependencies:
+  - name: alpine
+    version: "0.1.0"
+    repository: https://example.com/charts
+  - name: mariner
+    version: "4.3.2"
+    repository: https://example.com/charts

pkg/chartutil/testdata/frobnitz.v2/templates/template.tpl

+Hello {{.Name | default "world"}}

pkg/chartutil/testdata/frobnitz.v2/values.yaml

+# A values file contains configuration.
+
+name: "Some Name"
+
+section:
+  name: "Name in a section"