From 1820c9888d80562d6c1b4d156aaaa8fe2224ec0f Mon Sep 17 00:00:00 2001
From: Aaron Riedel <git@ar21.de>
Date: Sun, 27 Aug 2023 23:19:26 +0200
Subject: [PATCH] add restore script (still very crude)

---
 velero/restore.sh | 86 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100755 velero/restore.sh

diff --git a/velero/restore.sh b/velero/restore.sh
new file mode 100755
index 0000000..af21f50
--- /dev/null
+++ b/velero/restore.sh
@@ -0,0 +1,86 @@
+#!/usr/bin/env bash
+# written by Aaron 2023-08-27
+
+command_exists() {
+    command -v "$1" >/dev/null 2>&1
+    if [[ $? -ne 0 ]]; then
+        echo "Software dependency not met: $1"
+        exit 1
+    fi
+}
+command_exists "velero"
+command_exists "kubectl"
+
+velero backup get || exit 1
+echo -n "Please specify backup to be restored: "
+read BACKUPNAME
+echo "restore CRDs and services (services are just restored to create the namespaces)"
+velero restore create --from-backup $BACKUPNAME --include-resources customresourcedefinitions,services --include-cluster-resources=true restore-part-1 || exit 1
+echo "restore Longhorn and ingress controller"
+velero restore create --from-backup $BACKUPNAME --include-namespaces nginx-ingress,longhorn-system --include-cluster-resources=true restore-part-2 || exit 1
+echo ""
+
+######
+# Wait for Longhorn deployment
+######
+
+namespace="longhorn-system"
+pod_name_pattern="instance-manager"
+wait_timeout=300  # Maximum time to wait for pod creation in seconds
+wait_interval=5   # Interval for checking pod creation in seconds
+
+echo "Waiting for $pod_name_pattern pods to be created in namespace $namespace..."
+
+# Wait loop to check pod creation
+elapsed_time=0
+while [ $elapsed_time -lt $wait_timeout ]; do
+    pod_names=$(kubectl get pods -n "$namespace" --output=jsonpath='{.items[*].metadata.name}' | grep -E "^$pod_name_pattern")
+
+    if [ -n "$pod_names" ]; then
+        break
+    fi
+
+    sleep $wait_interval
+    elapsed_time=$((elapsed_time + wait_interval))
+done
+
+if [ -z "$pod_names" ]; then
+    echo "No pods matching the pattern were created within the specified timeout."
+    exit 1
+fi
+
+echo "$pod_name_pattern pods detected. Proceeding with deletion..."
+
+
+######
+# Delete Longhorn Instance Pods
+######
+
+namespace="longhorn-system"
+pod_name_pattern="instance-manager"
+
+# Get the list of pod names in the specified namespace
+pod_names=$(kubectl get pods -n "$namespace" --output=jsonpath='{.items[*].metadata.name}')
+
+if [ -z "$pod_names" ]; then
+    echo "No pods found in namespace $namespace."
+    exit 0
+fi
+
+# Delete the matching pods one by one
+for pod_name in $pod_names; do
+    if echo "$pod_name" | grep -q "^$pod_name_pattern"; then
+        kubectl delete pod "$pod_name" -n "$namespace"
+        echo "Deleted pod: $pod_name"
+    fi
+done
+
+echo "Please  restore the pvs and pvcs. After that write done: "
+while :; do
+	read INPUT
+	if [[ $INPUT == "done" ]]; then
+		break
+	fi
+done
+echo "Restore everything else"
+velero restore create --from-backup $BACKUPNAME --exclude-resources persistentvolumes,persistentvolumeclaims restore-part-3 || exit 1