add backup-ns list subcommand

README.md

@@ -263,6 +263,22 @@ kubectl label vs/<vs> "backup-ns.sh/delete-after"="YYYY-MM-DD"
 Here are some typical volume snapshot list commands based on that labels:
 
 ```bash
+# List application-aware volume snapshots overview in the current namespace
+backup-ns list
+
+# All namespaces
+backup-ns list -A
+
+# Filter by daily, weekly, monthly and adhoc:
+backup-ns list --daily
+backup-ns list --weekly
+backup-ns list --monthly
+backup-ns list --adhoc
+
+# Under the hook the above commands directly translate to the following kubectl commands.
+# It's all based on labels.
+# Feel free to use kubectl directly for more advanced queries.
+
 # List application-aware volume snapshots overview all namespaces
 kubectl get vs -lbackup-ns.sh/retain -Lbackup-ns.sh/type,backup-ns.sh/retain,backup-ns.sh/daily,backup-ns.sh/weekly,backup-ns.sh/monthly,backup-ns.sh/delete-after --all-namespaces
 

cmd/list.go

@@ -0,0 +1,85 @@
+package cmd
+
+import (
+	"fmt"
+	"log"
+	"os/exec"
+
+	"github.com/allaboutapps/backup-ns/internal/lib"
+	"github.com/spf13/cobra"
+)
+
+var (
+	allNamespaces bool
+	filterDaily   bool
+	filterWeekly  bool
+	filterMonthly bool
+	filterAdhoc   bool
+)
+
+var vsListCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List volume snapshots with backup-ns labels",
+	Run: func(_ *cobra.Command, args []string) {
+		namespace := ""
+		if !allNamespaces {
+			var err error
+			namespace, err = lib.GetCurrentNamespace()
+			if err != nil {
+				log.Fatal(err)
+			}
+		}
+
+		// Build label selector
+		labelSelector := "backup-ns.sh/retain"
+		if filterDaily {
+			labelSelector += ",backup-ns.sh/daily"
+		}
+		if filterWeekly {
+			labelSelector += ",backup-ns.sh/weekly"
+		}
+		if filterMonthly {
+			labelSelector += ",backup-ns.sh/monthly"
+		}
+		if filterAdhoc {
+			labelSelector += ",backup-ns.sh/type=adhoc"
+		}
+
+		// Build kubectl command
+		args = []string{
+			"get",
+			"vs",
+			"-l" + labelSelector,
+			"-Lbackup-ns.sh/type,backup-ns.sh/retain,backup-ns.sh/daily,backup-ns.sh/weekly,backup-ns.sh/monthly,backup-ns.sh/delete-after",
+		}
+
+		if allNamespaces {
+			args = append(args, "--all-namespaces")
+		} else if namespace != "" {
+			args = append(args, "-n", namespace)
+		}
+
+		// #nosec G204
+		cmd := exec.Command("kubectl", args...)
+		output, err := cmd.CombinedOutput()
+		if err != nil {
+			log.Fatalf("Failed to list volume snapshots: %v\nOutput: %s", err, output)
+		}
+
+		if namespace != "" {
+			fmt.Printf("Namespace: %s\n", namespace)
+		}
+
+		fmt.Printf("Listing volume snapshots with labels: %s\n", labelSelector)
+		fmt.Print(string(output))
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(vsListCmd)
+	vsListCmd.Flags().BoolVarP(&allNamespaces, "all-namespaces", "A", false, "List volume snapshots in all namespaces")
+	vsListCmd.Flags().BoolVar(&filterDaily, "daily", false, "Filter daily snapshots")
+	vsListCmd.Flags().BoolVar(&filterWeekly, "weekly", false, "Filter weekly snapshots")
+	vsListCmd.Flags().BoolVar(&filterMonthly, "monthly", false, "Filter monthly snapshots")
+	vsListCmd.Flags().BoolVar(&filterAdhoc, "adhoc", false, "Filter adhoc snapshots")
+}

test/test_create.sh

@@ -22,3 +22,5 @@ BAK_DB_MYSQL=true BAK_NAMESPACE=mysql-test BAK_DB_MYSQL_EXEC_RESOURCE=deployment
 BAK_DB_MYSQL=true BAK_NAMESPACE=mysql-test BAK_DB_MYSQL_EXEC_RESOURCE=deployment/mysql backup-ns mysql downloadDump -o "$SCRIPT_DIR/mysql-test.tar.gz"
 rm -f "$SCRIPT_DIR/mysql-test.tar.gz"
 BAK_DB_MYSQL=true BAK_NAMESPACE=mysql-test BAK_DB_MYSQL_EXEC_RESOURCE=deployment/mysql backup-ns mysql restore -f
+
+backup-ns list -A