feat(2450): add annotations to chart metadata (#2671)

* feat(2450): add options to chart metadata

_proto/hapi/chart/metadata.proto

@@ -80,4 +80,8 @@ message Metadata {
 	// TillerVersion is a SemVer constraints on what version of Tiller is required.
 	// See SemVer ranges here: https://github.com/Masterminds/semver#basic-comparisons
 	string tillerVersion = 15;
+
+	// Annotations are additional mappings uninterpreted by Tiller,
+	// made available for inspection by other applications.
+	map<string,string> annotations = 16;
 }

pkg/chartutil/chartfile_test.go

@@ -88,6 +88,18 @@ func verifyChartfile(t *testing.T, f *chart.Metadata, name string) {
 		t.Error("Unexpected keywords")
 	}
 
+	if len(f.Annotations) != 2 {
+		t.Fatalf("Unexpected annotations")
+	}
+
+	if want, got := "extravalue", f.Annotations["extrakey"]; want != got {
+		t.Errorf("Want %q, but got %q", want, got)
+	}
+
+	if want, got := "anothervalue", f.Annotations["anotherkey"]; want != got {
+		t.Errorf("Want %q, but got %q", want, got)
+	}
+
 	kk := []string{"frobnitz", "sprocket", "dodad"}
 	for i, k := range f.Keywords {
 		if kk[i] != k {

pkg/chartutil/testdata/chartfiletest.yaml

@@ -15,3 +15,6 @@ 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/Chart.yaml

@@ -15,3 +15,6 @@ 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_backslash/Chart.yaml

@@ -15,3 +15,6 @@ sources:
   - https://example.com/foo/bar
 home: http://example.com
 icon: https://example.com/64x64.png
+annotations:
+  extrakey: extravalue
+  anotherkey: anothervalue

pkg/proto/hapi/chart/metadata.pb.go

@@ -95,6 +95,9 @@ type Metadata struct {
 	// TillerVersion is a SemVer constraints on what version of Tiller is required.
 	// See SemVer ranges here: https://github.com/Masterminds/semver#basic-comparisons
 	TillerVersion string `protobuf:"bytes,15,opt,name=tillerVersion" json:"tillerVersion,omitempty"`
+	// Annotations are additional mappings uninterpreted by Tiller,
+	// made available for inspection by other applications.
+	Annotations map[string]string `protobuf:"bytes,16,rep,name=annotations" json:"annotations,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
 }
 
 func (m *Metadata) Reset()                    { *m = Metadata{} }
@@ -207,6 +210,13 @@ func (m *Metadata) GetTillerVersion() string {
 	return ""
 }
 
+func (m *Metadata) GetAnnotations() map[string]string {
+	if m != nil {
+		return m.Annotations
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterType((*Maintainer)(nil), "hapi.chart.Maintainer")
 	proto.RegisterType((*Metadata)(nil), "hapi.chart.Metadata")
@@ -216,28 +226,31 @@ func init() {
 func init() { proto.RegisterFile("hapi/chart/metadata.proto", fileDescriptor2) }
 
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