Changed behavio on environment

- variables are all in values.yaml as "template string". This means that
  we can now set values to reference others (useful with mapenv label)
- we can also set any variable as a secret

helm/configAndSecretMap.go

@@ -10,6 +10,7 @@ import (
 // InlineConfig is made to represent a configMap or a secret
 type InlineConfig interface {
 	AddEnvFile(filename string) error
+	AddEnv(key, val string) error
 	Metadata() *Metadata
 }
 
@@ -56,9 +57,12 @@ func (c *ConfigMap) AddEnvFile(file string) error {
 		}
 		c.Data[parts[0]] = parts[1]
 	}
-
 	return nil
+}
 
+func (c *ConfigMap) AddEnv(key, val string) error {
+	c.Data[key] = val
+	return nil
 }
 
 // Secret is made to represent a secret with data.
@@ -108,3 +112,9 @@ func (s *Secret) AddEnvFile(file string) error {
 func (s *Secret) Metadata() *Metadata {
 	return s.K8sBase.Metadata
 }
+
+// AddEnv adds an environment variable to the secret.
+func (s *Secret) AddEnv(key, val string) error {
+	s.Data[key] = fmt.Sprintf(`{{ %s | b64enc }}`, val)
+	return nil
+}

helm/labels.go

@@ -16,6 +16,7 @@ const (
 	LABEL_SAMEPOD     = K + "/same-pod"
 	LABEL_EMPTYDIRS   = K + "/empty-dirs"
 	LABEL_IGNORE      = K + "/ignore"
+	LABEL_SECRETVARS  = K + "/secret-vars"
 
 	//deprecated: use LABEL_MAP_ENV instead
 	LABEL_ENV_SERVICE = K + "/env-to-service"
@@ -26,6 +27,7 @@ func GetLabelsDocumentation() string {
 	t, _ := template.New("labels").Parse(`
 # Labels
 {{.LABEL_IGNORE      | printf "%-33s"}}: ignore the container, it will not yied any object in the helm chart
+{{.LABEL_SECRETVARS  | printf "%-33s"}}: secret variables to push on a secret file
 {{.LABEL_ENV_SECRET  | printf "%-33s"}}: set the given file names as a secret instead of configmap
 {{.LABEL_MAP_ENV     | printf "%-33s"}}: map environment variable to a template string (yaml style)
 {{.LABEL_PORT        | printf "%-33s"}}: set the ports to expose as a service (coma separated)
@@ -52,6 +54,7 @@ func GetLabelsDocumentation() string {
 		"LABEL_EMPTYDIRS":   LABEL_EMPTYDIRS,
 		"LABEL_IGNORE":      LABEL_IGNORE,
 		"LABEL_MAP_ENV":     LABEL_MAP_ENV,
+		"LABEL_SECRETVARS":  LABEL_SECRETVARS,
 	})
 	return buff.String()
 }