feat: kubesphere 4.0 (#6115)

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

---------

Signed-off-by: ci-bot <ci-bot@kubesphere.io>
Co-authored-by: ks-ci-bot <ks-ci-bot@example.com>
Co-authored-by: joyceliu <joyceliu@yunify.com>

pkg/controller/k8sapplication/utils.go

@@ -0,0 +1,102 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package k8sapplication
+
+import (
+	"strings"
+
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+const (
+	AppLabel                = "app"
+	VersionLabel            = "version"
+	ApplicationNameLabel    = "app.kubernetes.io/name"
+	ApplicationVersionLabel = "app.kubernetes.io/version"
+)
+
+// resource with these following labels considered as part of servicemesh
+var ApplicationLabels = [...]string{
+	ApplicationNameLabel,
+	ApplicationVersionLabel,
+	AppLabel,
+}
+
+// resource with these following labels considered as part of kubernetes-sigs/application
+var AppLabels = [...]string{
+	ApplicationNameLabel,
+	ApplicationVersionLabel,
+}
+
+var TrimChars = [...]string{".", "_", "-"}
+
+// normalize version names
+// strip [_.-]
+func NormalizeVersionName(version string) string {
+	for _, char := range TrimChars {
+		version = strings.ReplaceAll(version, char, "")
+	}
+	return version
+}
+
+func GetApplictionName(lbs map[string]string) string {
+	if name, ok := lbs[ApplicationNameLabel]; ok {
+		return name
+	}
+	return ""
+
+}
+
+func GetComponentName(meta *v1.ObjectMeta) string {
+	if len(meta.Labels[AppLabel]) > 0 {
+		return meta.Labels[AppLabel]
+	}
+	return ""
+}
+
+func GetComponentVersion(meta *v1.ObjectMeta) string {
+	if len(meta.Labels[VersionLabel]) > 0 {
+		return meta.Labels[VersionLabel]
+	}
+	return ""
+}
+
+func ExtractApplicationLabels(meta *v1.ObjectMeta) map[string]string {
+
+	labels := make(map[string]string, len(ApplicationLabels))
+	for _, label := range ApplicationLabels {
+		if _, ok := meta.Labels[label]; !ok {
+			return nil
+		} else {
+			labels[label] = meta.Labels[label]
+		}
+	}
+
+	return labels
+}
+
+func IsApplicationComponent(lbs map[string]string) bool {
+
+	for _, label := range ApplicationLabels {
+		if _, ok := lbs[label]; !ok {
+			return false
+		}
+	}
+
+	return true
+}
+
+// Whether it belongs to kubernetes-sigs/application or not
+func IsAppComponent(lbs map[string]string) bool {
+
+	for _, label := range AppLabels {
+		if _, ok := lbs[label]; !ok {
+			return false
+		}
+	}
+
+	return true
+}