Add fileSelector to the GitFileGenerator to support label-based file …

…match

Signed-off-by: Sriteja TADAKALURU <[email protected]>

applicationset/generators/git.go

@@ -11,6 +11,8 @@ import (
 
 	"github.com/jeremywohl/flatten"
 	log "github.com/sirupsen/logrus"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/types"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/yaml"
@@ -130,9 +132,44 @@ func (g *GitGenerator) generateParamsForGitFiles(appSetGenerator *argoprojiov1al
 		if err != nil {
 			return nil, err
 		}
-		for filePath, content := range files {
-			allFiles[filePath] = content
+		if requestedPath.FileSelector != nil {
+			for filePath, content := range files {
+				objects := map[string]interface{}{}
+				err := yaml.Unmarshal(content, &objects)
+				if err != nil {
+					log.Printf("unable to parse the file: %v", err)
+					continue
+				}
+
+				flat, err := flatten.Flatten(objects, "", flatten.DotStyle)
+				if err != nil {
+					log.Printf("error flattening the object: %v", err)
+					continue
+				}
+
+				labelSet := make(labels.Set)
+				for k, v := range flat {
+					if strVal, ok := v.(string); ok {
+						labelSet[k] = strVal
+					}
+				}
+
+				selector, err := metav1.LabelSelectorAsSelector(requestedPath.FileSelector)
+				if err != nil {
+					log.Printf("error parsing the label selector: %v", err)
+					continue
+				}
+
+				if selector.Matches(labelSet) {
+					allFiles[filePath] = content
+				}
+			}
+		} else {
+			for filePath, content := range files {
+				allFiles[filePath] = content
+			}
 		}
+
 	}
 
 	// Extract the unduplicated map into a list, and sort by path to ensure a deterministic

manifests/core-install-with-hydrator.yaml

@@ -7142,6 +7142,32 @@ spec:
                         files:
                           items:
                             properties:
+                              fileSelector:
+                                properties:
+                                  matchExpressions:
+                                    items:
+                                      properties:
+                                        key:
+                                          type: string
+                                        operator:
+                                          type: string
+                                        values:
+                                          items:
+                                            type: string
+                                          type: array
+                                          x-kubernetes-list-type: atomic
+                                      required:
+                                      - key
+                                      - operator
+                                      type: object
+                                    type: array
+                                    x-kubernetes-list-type: atomic
+                                  matchLabels:
+                                    additionalProperties:
+                                      type: string
+                                    type: object
+                                type: object
+                                x-kubernetes-map-type: atomic
                               path:
                                 type: string
                             required:
@@ -9812,6 +9838,32 @@ spec:
                                   files:
                                     items:
                                       properties:
+                                        fileSelector:
+                                          properties:
+                                            matchExpressions:
+                                              items:
+                                                properties:
+                                                  key:
+                                                    type: string
+                                                  operator:
+                                                    type: string
+                                                  values:
+                                                    items:
+                                                      type: string
+                                                    type: array
+                                                    x-kubernetes-list-type: atomic
+                                                required:
+                                                - key
+                                                - operator
+                                                type: object
+                                              type: array
+                                              x-kubernetes-list-type: atomic
+                                            matchLabels:
+                                              additionalProperties:
+                                                type: string
+                                              type: object
+                                          type: object
+                                          x-kubernetes-map-type: atomic
                                         path:
                                           type: string
                                       required:
@@ -15562,6 +15614,32 @@ spec:
                                   files:
                                     items:
                                       properties:
+                                        fileSelector:
+                                          properties:
+                                            matchExpressions:
+                                              items:
+                                                properties:
+                                                  key:
+                                                    type: string
+                                                  operator:
+                                                    type: string
+                                                  values:
+                                                    items:
+                                                      type: string
+                                                    type: array
+                                                    x-kubernetes-list-type: atomic
+                                                required:
+                                                - key
+                                                - operator
+                                                type: object
+                                              type: array
+                                              x-kubernetes-list-type: atomic
+                                            matchLabels:
+                                              additionalProperties:
+                                                type: string
+                                              type: object
+                                          type: object
+                                          x-kubernetes-map-type: atomic
                                         path:
                                           type: string
                                       required: