Update multiplane.sh

multiplane.sh

@@ -193,12 +193,70 @@ upgrades_everyone_upgrades() {
     exit 0
 }
 
+backup_k0s() {
+
+    if ! mkdir -p /opt/k0s/backups 2>/dev/null; then
+        fatal "Error: Failed to create directory /opt/k0s/backups"
+        exit 1
+    fi
+
+    gum spin --spinner dot --spinner.foreground 220 --title "Waiting..." -- k0sctl backup --save-path=/opt/k0s/backups && info "Backup success!" || fatal "Backup of k0s failed!"
+
+}
+
+restore_k0s() {
+
+    gum spin --spinner dot --spinner.foreground 220 --title "Waiting..." -- k0sctl apply --restore-from $1 && info "Restore success!" || fatal "Restore of k0s failed!"
+
+}
+
 your_good_your_good_your_good_and_stop() {
-    exit 0
+    
+    gum pager <<EOF
+Parts NOT covered by the k0s backup utility:
+
+- PersistentVolumes of any running application
+- data store, in case something else than etcd or Kine/SQLite is used
+- any configuration to the cluster introduced by manual changes (e.g. changes that weren't saved under the <data-dir>/manifests)
+
+The backups created by k0s backup command have following pieces of your cluster:
+
+- certificates (the content of the <data-dir>/pki directory)
+- etcd snapshot, if the etcd data store is used
+- Kine/SQLite snapshot, if the Kine/SQLite data store is used
+- k0s.yaml
+- any custom defined manifests under the <data-dir>/manifests
+- any image bundles located under the <data-dir>/images
+- any helm configuration
+EOF
+
+    gum confirm "Start Backup Task?" && backup_k0s || clear; echo "Exiting..."; exit 0
+
 }
 
 thatll_buff_right_out_captin() {
-    exit 0
+
+    if [ ! -d "/opt/k0s/backups" ]; then
+        fatal "Error: directory /opt/k0s/backups does exist"
+        exit 1
+    fi
+
+    # Check if directory is empty
+    if [ -z "$(ls -A "/opt/k0s/backups" 2>/dev/null)" ]; then
+        fatal "Directory /opt/k0s/backups is empty. Exiting..."
+        exit 1
+    fi
+
+    clear;
+
+    file=$(find /opt/k0s/backups -maxdepth 1 -type f -printf "%f\n" | gum filter --limit 1 --placeholder "Select a backup file...")
+
+    if [ -n "$file" ]; then
+        full_path="/opt/k0s/backups/$file"
+    fi
+
+    clear; gum confirm "Start Backup Task?" && restore_k0s $full_path || clear; echo "Exiting..."; exit 0
+
 }
 
 main() {