Fix problems and adding functionnalities

Many fixes and enhancements:

- Add icon option
- Add env file managment
- Ordering compose parsing options
- Fix path with underscores
- Fix image and tag discovery
- Better documentation for labels

generator/volume.go

@@ -12,10 +12,10 @@ import (
 	"katenary/utils"
 )
 
-var _ Yaml = (*VolumeClaim)(nil)
-
 const persistenceKey = "persistence"
 
+var _ Yaml = (*VolumeClaim)(nil)
+
 // VolumeClaim is a kubernetes VolumeClaim. This is a PersistentVolumeClaim.
 type VolumeClaim struct {
 	*v1.PersistentVolumeClaim
@@ -59,6 +59,11 @@ func NewVolumeClaim(service types.ServiceConfig, volumeName, appName string) *Vo
 	}
 }
 
+// Filename returns the suggested filename for a VolumeClaim.
+func (v *VolumeClaim) Filename() string {
+	return v.service.Name + "." + v.volumeName + ".volumeclaim.yaml"
+}
+
 // Yaml marshals a VolumeClaim into yaml.
 func (v *VolumeClaim) Yaml() ([]byte, error) {
 	serviceName := v.service.Name
@@ -122,8 +127,3 @@ func (v *VolumeClaim) Yaml() ([]byte, error) {
 
 	return out, nil
 }
-
-// Filename returns the suggested filename for a VolumeClaim.
-func (v *VolumeClaim) Filename() string {
-	return v.service.Name + "." + v.volumeName + ".volumeclaim.yaml"
-}