Expose release version as .Release.ChartVersion for templating (#2080)

docs/builtin-objects.md

@@ -52,6 +52,7 @@ releases:
   - `Release.Labels`: The labels to be applied to the release
   - `Release.Chart`: The chart name of the release
   - `Release.KubeContext`: The kube context to be used for the release
+  - `Release.ChartVersion`: The version of the current chart
 - `Values`: Values passed into the environment.
 - `StateValues`: alias for `Values`.
 - `Environment`: The information about the environment. This is set by the

pkg/state/state_exec_tmpl.go

@@ -28,11 +28,12 @@ func (st *HelmState) createReleaseTemplateData(release *ReleaseSpec, vals map[st
 		Chart:       st.OverrideChart,
 		Values:      vals,
 		Release: releaseTemplateDataRelease{
-			Name:        release.Name,
+			Name:         release.Name,
-			Chart:       release.Chart,
+			Chart:        release.Chart,
-			Namespace:   release.Namespace,
+			Namespace:    release.Namespace,
-			Labels:      release.Labels,
+			Labels:       release.Labels,
-			KubeContext: release.KubeContext,
+			KubeContext:  release.KubeContext,
+			ChartVersion: release.Version,
 		},
 	}
 	tmplData.StateValues = &tmplData.Values

pkg/state/state_exec_tmpl_test.go

@@ -32,8 +32,8 @@ func TestHelmState_executeTemplates(t *testing.T) {
 				Version:        "{{ .Release.Name }}-0.1",
 				Name:           "test-app",
 				Namespace:      "test-namespace-{{ .Release.Name }}",
-				ValuesTemplate: []any{"config/{{ .Environment.Name }}/{{ .Release.Name }}/values.yaml"},
+				ValuesTemplate: []any{"config/{{ .Environment.Name }}/{{ .Release.Name }}/{{ .Release.ChartVersion }}/values.yaml"},
-				Secrets:        []any{"config/{{ .Environment.Name }}/{{ .Release.Name }}/secrets.yaml"},
+				Secrets:        []any{"config/{{ .Environment.Name }}/{{ .Release.Name }}/{{ .Release.ChartVersion }}/secrets.yaml"},
 				Labels:         map[string]string{"id": "{{ .Release.Name }}"},
 			},
 			want: ReleaseSpec{
@@ -41,8 +41,8 @@ func TestHelmState_executeTemplates(t *testing.T) {
 				Version:   "test-app-0.1",
 				Name:      "test-app",
 				Namespace: "test-namespace-test-app",
-				Values:    []any{"config/test_env/test-app/values.yaml"},
+				Values:    []any{"config/test_env/test-app/test-app-0.1/values.yaml"},
-				Secrets:   []any{"config/test_env/test-app/secrets.yaml"},
+				Secrets:   []any{"config/test_env/test-app/test-app-0.1/secrets.yaml"},
 				Labels:    map[string]string{"id": "test-app"},
 			},
 		},
@@ -89,20 +89,24 @@ func TestHelmState_executeTemplates(t *testing.T) {
 				Chart:     "test-charts/chart",
 				Name:      "test-app",
 				Namespace: "dev",
+				Version:   "1.5",
 				SetValuesTemplate: []SetValue{
 					{Name: "val1", Value: "{{ .Release.Name }}-val1"},
 					{Name: "val2", File: "{{ .Release.Name }}.yml"},
 					{Name: "val3", Values: []string{"{{ .Release.Name }}-val2", "{{ .Release.Name }}-val3"}},
+					{Name: "val4", Value: "{{ .Release.Chart }}-{{ .Release.ChartVersion}}"},
 				},
 			},
 			want: ReleaseSpec{
 				Chart:     "test-charts/chart",
 				Name:      "test-app",
 				Namespace: "dev",
+				Version:   "1.5",
 				SetValues: []SetValue{
 					{Name: "val1", Value: "test-app-val1"},
 					{Name: "val2", File: "test-app.yml"},
 					{Name: "val3", Values: []string{"test-app-val2", "test-app-val3"}},
+					{Name: "val4", Value: "test-charts/chart-1.5"},
 				},
 			},
 		},
@@ -146,6 +150,19 @@ func TestHelmState_executeTemplates(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "Version is empty but used in templates (render as empty string)",
+			input: ReleaseSpec{
+				Name:           "test-app",
+				Chart:          "test-charts/{{ .Release.Name }}",
+				ValuesTemplate: []any{"config/values-{{ .Release.ChartVersion }}.yaml"},
+			},
+			want: ReleaseSpec{
+				Name:   "test-app",
+				Chart:  "test-charts/test-app",
+				Values: []any{"config/values-.yaml"},
+			},
+		},
 	}
 
 	for i := range tests {

pkg/state/types.go

@@ -64,6 +64,9 @@ type releaseTemplateDataRelease struct {
 	// Chart is ReleaseSpec.Chart
 	Chart string
 
+	// ChartVersion is ReleaseSpec.Version
+	ChartVersion string
+
 	// KubeContext is ReleaseSpec.KubeContext
 	KubeContext string
 }