chore(tls): Add secretName to the values

The seret name for TLS wasn't editable, it may be useful to change it
when we generate TLS certificates for specific installation.

Author: metal3d

generator/converter.go

@@ -85,6 +85,12 @@ var unwantedLines = []string{
 	"status:",
 }
 
+var ingressTLSHelp = `# Ingress TLS configuration
+# If enabled, a secret containing the certificate and the key should be
+# created by the ingress controller. If the name if emtpy, so the secret
+# name is generated. You can specify the secret name to use your own secret.
+`
+
 // keyRegExp checks if the line starts by a #
 var keyRegExp = regexp.MustCompile(`^\s*[^#]+:.*`)
 
@@ -486,6 +492,24 @@ func addYAMLSelectorPath(values []byte) []byte {
 	return []byte(strings.Join(toReturn, "\n"))
 }
 
+// addTLSHelp adds a comment to the values.yaml file to explain how to
+// use the tls option.
+func addTLSHelp(values []byte) []byte {
+	lines := strings.Split(string(values), "\n")
+	for i, line := range lines {
+		if strings.Contains(line, "tls:") {
+			spaces := utils.CountStartingSpaces(line)
+			spacesString := strings.Repeat(" ", spaces)
+			// indent ingressClassHelper comment
+			ingressTLSHelp := strings.ReplaceAll(ingressTLSHelp, "\n", "\n"+spacesString)
+			ingressTLSHelp = strings.TrimRight(ingressTLSHelp, " ")
+			ingressTLSHelp = spacesString + ingressTLSHelp
+			lines[i] = ingressTLSHelp + line
+		}
+	}
+	return []byte(strings.Join(lines, "\n"))
+}
+
 func buildCharYamlFile(chart *HelmChart, project *types.Project, chartPath string) {
 	// calculate the sha1 hash of the services
 	yamlChart, err := utils.EncodeBasicYaml(chart)
@@ -537,6 +561,7 @@ func buildValues(chart *HelmChart, project *types.Project, valuesPath string) {
 	values = addVariablesDoc(values, project)
 	values = addMainTagAppDoc(values, project)
 	values = addResourceHelp(values)
+	values = addTLSHelp(values)
 	values = addYAMLSelectorPath(values)
 	values = append([]byte(headerHelp), values...)
 

generator/ingress.go

@@ -17,6 +17,7 @@ var _ Yaml = (*Ingress)(nil)
 type Ingress struct {
 	*networkv1.Ingress
 	service *types.ServiceConfig `yaml:"-"`
+	appName string               `yaml:"-"`
 }
 
 // NewIngress creates a new Ingress from a compose service.
@@ -42,7 +43,11 @@ func NewIngress(service types.ServiceConfig, Chart *HelmChart) *Ingress {
 
 	// create the ingress
 	pathType := networkv1.PathTypeImplementationSpecific
-	serviceName := `{{ include "` + appName + `.fullname" . }}-` + service.Name
+
+	// fix the service name, and create the full name from variable name
+	// which is injected in the YAML() method
+	serviceName := strings.ReplaceAll(service.Name, "_", "-")
+	fullName := `{{ $fullname }}-` + serviceName
 
 	// Add the ingress host to the values.yaml
 	if Chart.Values[service.Name] == nil {
@@ -63,7 +68,7 @@ func NewIngress(service types.ServiceConfig, Chart *HelmChart) *Ingress {
 
 	servicePortName := utils.GetServiceNameByPort(int(*mapping.Port))
 	ingressService := &networkv1.IngressServiceBackend{
-		Name: serviceName,
+		Name: fullName,
 		Port: networkv1.ServiceBackendPort{},
 	}
 	if servicePortName != "" {
@@ -74,26 +79,27 @@ func NewIngress(service types.ServiceConfig, Chart *HelmChart) *Ingress {
 
 	ing := &Ingress{
 		service: &service,
+		appName: appName,
 		Ingress: &networkv1.Ingress{
 			TypeMeta: metav1.TypeMeta{
 				Kind:       "Ingress",
 				APIVersion: "networking.k8s.io/v1",
 			},
 			ObjectMeta: metav1.ObjectMeta{
-				Name:        utils.TplName(service.Name, appName),
-				Labels:      GetLabels(service.Name, appName),
+				Name:        fullName,
+				Labels:      GetLabels(serviceName, appName),
 				Annotations: Annotations,
 			},
 			Spec: networkv1.IngressSpec{
 				IngressClassName: &ingressClassName,
 				Rules: []networkv1.IngressRule{
 					{
-						Host: utils.TplValue(service.Name, "ingress.host"),
+						Host: utils.TplValue(serviceName, "ingress.host"),
 						IngressRuleValue: networkv1.IngressRuleValue{
 							HTTP: &networkv1.HTTPIngressRuleValue{
 								Paths: []networkv1.HTTPIngressPath{
 									{
-										Path:     utils.TplValue(service.Name, "ingress.path"),
+										Path:     utils.TplValue(serviceName, "ingress.path"),
 										PathType: &pathType,
 										Backend: networkv1.IngressBackend{
 											Service: ingressService,
@@ -107,9 +113,9 @@ func NewIngress(service types.ServiceConfig, Chart *HelmChart) *Ingress {
 				TLS: []networkv1.IngressTLS{
 					{
 						Hosts: []string{
-							`{{ tpl .Values.` + service.Name + `.ingress.host . }}`,
+							`{{ tpl .Values.` + serviceName + `.ingress.host . }}`,
 						},
-						SecretName: `{{ include "` + appName + `.fullname" . }}-` + service.Name + `-tls`,
+						SecretName: `{{ .Values.` + serviceName + `.ingress.tls.secretName | default $tlsname }}`,
 					},
 				},
 			},
@@ -131,19 +137,15 @@ func (ingress *Ingress) Yaml() ([]byte, error) {
 	}
 
 	serviceName := ingress.service.Name
-	if err != nil {
-		return nil, err
-	}
+
 	ret = UnWrapTPL(ret)
 
 	lines := strings.Split(string(ret), "\n")
 
 	// first pass, wrap the tls part with `{{- if .Values.serviceName.ingress.tlsEnabled -}}`
 	// and `{{- end -}}`
 
-	from := -1
-	to := -1
-	spaces := -1
+	from, to, spaces := -1, -1, -1
 	for i, line := range lines {
 		if strings.Contains(line, "tls:") {
 			from = i
@@ -167,6 +169,8 @@ func (ingress *Ingress) Yaml() ([]byte, error) {
 
 	out := []string{
 		`{{- if .Values.` + serviceName + `.ingress.enabled -}}`,
+		`{{- $fullname := include "` + ingress.appName + `.fullname" . -}}`,
+		`{{- $tlsname := printf "%s-%s-tls" $fullname "` + ingress.service.Name + `" -}}`,
 	}
 	for _, line := range lines {
 		if strings.Contains(line, "loadBalancer: ") {

generator/ingress_test.go

@@ -31,7 +31,11 @@ services:
 	os.Chdir(tmpDir)
 	defer os.Chdir(currentDir)
 
-	output := internalCompileTest(t, "-s", "templates/web/ingress.yaml", "--set", "web.ingress.enabled=true")
+	output := internalCompileTest(
+		t,
+		"-s", "templates/web/ingress.yaml",
+		"--set", "web.ingress.enabled=true",
+	)
 	ingress := v1.Ingress{}
 	if err := yaml.Unmarshal([]byte(output), &ingress); err != nil {
 		t.Errorf(unmarshalError, err)
@@ -43,3 +47,82 @@ services:
 		t.Errorf("Expected host to be my.test.tld, got %s", ingress.Spec.Rules[0].Host)
 	}
 }
+
+func TestTLS(t *testing.T) {
+	composeFile := `
+services:
+    web:
+        image: nginx:1.29
+        ports:
+        - 80:80
+        - 443:443
+        labels:
+            %s/ingress: |-
+                hostname: my.test.tld
+                port: 80
+`
+	composeFile = fmt.Sprintf(composeFile, labels.KatenaryLabelPrefix)
+	tmpDir := setup(composeFile)
+	defer teardown(tmpDir)
+
+	currentDir, _ := os.Getwd()
+	os.Chdir(tmpDir)
+	defer os.Chdir(currentDir)
+
+	output := internalCompileTest(
+		t,
+		"-s", "templates/web/ingress.yaml",
+		"--set", "web.ingress.enabled=true",
+	)
+	ingress := v1.Ingress{}
+	if err := yaml.Unmarshal([]byte(output), &ingress); err != nil {
+		t.Errorf(unmarshalError, err)
+	}
+	// find the tls section
+	tls := ingress.Spec.TLS
+	if len(tls) != 1 {
+		t.Errorf("Expected 1 tls section, got %d", len(tls))
+	}
+}
+
+func TestTLSName(t *testing.T) {
+	composeFile := `
+services:
+    web:
+        image: nginx:1.29
+        ports:
+        - 80:80
+        - 443:443
+        labels:
+            %s/ingress: |-
+                hostname: my.test.tld
+                port: 80
+`
+	composeFile = fmt.Sprintf(composeFile, labels.KatenaryLabelPrefix)
+	tmpDir := setup(composeFile)
+	defer teardown(tmpDir)
+
+	currentDir, _ := os.Getwd()
+	os.Chdir(tmpDir)
+	defer os.Chdir(currentDir)
+
+	output := internalCompileTest(
+		t,
+		"-s",
+		"templates/web/ingress.yaml",
+		"--set", "web.ingress.enabled=true",
+		"--set", "web.ingress.tls.secretName=mysecret",
+	)
+	ingress := v1.Ingress{}
+	if err := yaml.Unmarshal([]byte(output), &ingress); err != nil {
+		t.Errorf(unmarshalError, err)
+	}
+	// find the tls section
+	tls := ingress.Spec.TLS
+	if len(tls) != 1 {
+		t.Errorf("Expected 1 tls section, got %d", len(tls))
+	}
+	if tls[0].SecretName != "mysecret" {
+		t.Errorf("Expected secretName to be mysecret, got %s", tls[0].SecretName)
+	}
+}

generator/values.go

@@ -21,7 +21,8 @@ type PersistenceValue struct {
 }
 
 type TLS struct {
-	Enabled bool `yaml:"enabled"`
+	Enabled    bool   `yaml:"enabled"`
+	SecretName string `yaml:"secretName"`
 }
 
 // IngressValue is a ingress configuration that will be saved in values.yaml.
@@ -92,6 +93,10 @@ func (v *Value) AddIngress(host, path string) {
 		Host:    host,
 		Path:    path,
 		Class:   "-",
+		TLS: TLS{
+			Enabled:    true,
+			SecretName: "",
+		},
 	}
 }