backup seaweedfs label and namespace in disaster recovery (#4660)

* backup seaweedfs label and namespace in disaster recovery

* unit test updates

pkg/kotsadmsnapshot/backup.go

@@ -991,6 +991,7 @@ func prepareIncludedNamespaces(namespaces []string, isEC bool) []string {
 		uniqueNamespaces["kube-system"] = true
 		uniqueNamespaces["openebs"] = true
 		uniqueNamespaces["registry"] = true
+		uniqueNamespaces["seaweedfs"] = true
 	}
 
 	includedNamespaces := make([]string, len(uniqueNamespaces))
@@ -1097,6 +1098,13 @@ func instanceBackupLabelSelectors(isEmbeddedCluster bool) []*metav1.LabelSelecto
 					"app": "docker-registry",
 				},
 			},
+			{
+				// we cannot add new labels to the seaweedfs chart as of June 6th 2024
+				// so we need to add a label selector for the seaweedfs app
+				MatchLabels: map[string]string{
+					"app.kubernetes.io/name": "seaweedfs",
+				},
+			},
 		}
 	}
 

pkg/kotsadmsnapshot/backup_test.go

@@ -85,7 +85,7 @@ func TestPrepareIncludedNamespaces(t *testing.T) {
 		{
 			name:       "embedded-cluster install",
 			namespaces: []string{"test", "abcapp"},
-			want:       []string{"test", "abcapp", "embedded-cluster", "kube-system", "openebs", "registry"},
+			want:       []string{"test", "abcapp", "embedded-cluster", "kube-system", "openebs", "registry", "seaweedfs"},
 			isEC:       true,
 		},
 	}
@@ -674,6 +674,11 @@ func Test_instanceBackupLabelSelectors(t *testing.T) {
 						"app": "docker-registry",
 					},
 				},
+				{
+					MatchLabels: map[string]string{
+						"app.kubernetes.io/name": "seaweedfs",
+					},
+				},
 			},
 		},
 	}