migration

scripts/gitea-restore.sh

@@ -0,0 +1,165 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Gitea restore helper — restores a gitea-dump zip into a running Gitea deployment
+#
+# Prerequisites:
+#   - Gitea deployed on the target cluster (Helm chart via ArgoCD)
+#   - kubectl context pointing to the target cluster
+#   - A gitea-dump zip file (from gitea-backup.sh download or CronJob)
+#
+# Usage:
+#   ./scripts/gitea-restore.sh <gitea-dump-file.zip>
+#
+# What it does:
+#   1. Scales Gitea down to 0
+#   2. Restores the PostgreSQL database from gitea-db.sql
+#   3. Restores Git repositories to the data PVC
+#   4. Scales Gitea back up
+
+NAMESPACE="gitea"
+DEPLOYMENT="gitea"
+PG_STATEFULSET="gitea-postgresql"
+PVC="gitea-shared-storage"
+HELPER_POD="gitea-restore-helper"
+HELPER_IMAGE="alpine:3.20"
+PG_USER="gitea"
+PG_DB="gitea"
+
+DUMP_FILE="${1:?Usage: $0 <gitea-dump-file.zip>}"
+
+if [ ! -f "$DUMP_FILE" ]; then
+  echo "Error: file not found: $DUMP_FILE"
+  exit 1
+fi
+
+echo "=== Gitea Restore ==="
+echo "Dump file: $DUMP_FILE"
+echo ""
+
+# --- Safety prompt ---
+read -r -p "This will OVERWRITE the Gitea database and repositories on the current cluster. Continue? [y/N] " confirm
+if [[ ! "$confirm" =~ ^[Yy]$ ]]; then
+  echo "Aborted."
+  exit 0
+fi
+
+cleanup() {
+  kubectl -n "$NAMESPACE" delete pod "$HELPER_POD" --ignore-not-found --grace-period=0 > /dev/null 2>&1 || true
+}
+trap cleanup EXIT
+
+# --- Step 1: Extract dump locally ---
+RESTORE_DIR=$(mktemp -d)
+echo ""
+echo "[1/5] Extracting dump..."
+unzip -q "$DUMP_FILE" -d "$RESTORE_DIR"
+
+# Detect SQL dump file (gitea-db.sql or gitea-dump-*.sql)
+SQL_FILE=$(find "$RESTORE_DIR" -maxdepth 1 -name '*.sql' | head -1)
+if [ -z "$SQL_FILE" ]; then
+  echo "Error: no .sql file found in dump."
+  rm -rf "$RESTORE_DIR"
+  exit 1
+fi
+
+# Detect repos — either a "repos" folder or gitea-repo.zip
+if [ -d "$RESTORE_DIR/repos" ]; then
+  REPOS_SOURCE="dir"
+  REPOS_PATH="$RESTORE_DIR/repos"
+elif [ -f "$RESTORE_DIR/gitea-repo.zip" ]; then
+  REPOS_SOURCE="zip"
+  REPOS_PATH="$RESTORE_DIR/gitea-repo.zip"
+else
+  echo "Error: no repos/ directory or gitea-repo.zip found in dump."
+  rm -rf "$RESTORE_DIR"
+  exit 1
+fi
+
+echo "  Found: $(basename "$SQL_FILE") ($(du -h "$SQL_FILE" | cut -f1))"
+echo "  Found: repos ($REPOS_SOURCE)"
+[ -d "$RESTORE_DIR/data" ] && echo "  Found: data/"
+[ -f "$RESTORE_DIR/app.ini" ] && echo "  Found: app.ini (managed by Helm, skipping)"
+
+# --- Step 2: Scale down Gitea ---
+echo ""
+echo "[2/5] Scaling down Gitea..."
+kubectl -n "$NAMESPACE" scale deployment "$DEPLOYMENT" --replicas=0
+kubectl -n "$NAMESPACE" rollout status deployment "$DEPLOYMENT" --timeout=60s 2>/dev/null || true
+echo "  Waiting for pods to terminate..."
+kubectl -n "$NAMESPACE" wait --for=delete pod -l app.kubernetes.io/name=gitea --timeout=120s 2>/dev/null || true
+echo "  Gitea is down."
+
+# --- Step 3: Restore database ---
+echo ""
+echo "[3/5] Restoring database..."
+# Drop and recreate to ensure clean state
+kubectl -n "$NAMESPACE" exec "${PG_STATEFULSET}-0" -- \
+  psql -U "$PG_USER" -d postgres -c "DROP DATABASE IF EXISTS ${PG_DB};" 2>/dev/null
+kubectl -n "$NAMESPACE" exec "${PG_STATEFULSET}-0" -- \
+  psql -U "$PG_USER" -d postgres -c "CREATE DATABASE ${PG_DB} OWNER ${PG_USER};" 2>/dev/null
+kubectl -n "$NAMESPACE" exec -i "${PG_STATEFULSET}-0" -- \
+  psql -U "$PG_USER" -d "$PG_DB" < "$SQL_FILE" > /dev/null
+echo "  Database restored."
+
+# --- Step 4: Restore repositories ---
+echo ""
+echo "[4/5] Restoring repositories..."
+
+# Need a helper pod on the same node as the PVC (RWO)
+cleanup
+kubectl -n "$NAMESPACE" run "$HELPER_POD" --restart=Never \
+  --image="$HELPER_IMAGE" \
+  --overrides="{
+    \"spec\":{
+      \"containers\":[{
+        \"name\":\"$HELPER_POD\",
+        \"image\":\"$HELPER_IMAGE\",
+        \"command\":[\"sleep\",\"3600\"],
+        \"volumeMounts\":[{\"name\":\"data\",\"mountPath\":\"/data\"}]
+      }],
+      \"volumes\":[{
+        \"name\":\"data\",
+        \"persistentVolumeClaim\":{\"claimName\":\"$PVC\"}
+      }]
+    }
+  }" > /dev/null 2>&1
+
+kubectl -n "$NAMESPACE" wait --for=condition=Ready "pod/$HELPER_POD" --timeout=120s > /dev/null 2>&1
+
+# Clear existing repos
+kubectl -n "$NAMESPACE" exec "$HELPER_POD" -- sh -c "rm -rf /data/gitea/repositories/*" 2>/dev/null || true
+
+# Upload repos — tar via stdin since kubectl cp needs tar in the container
+echo "  Uploading repositories..."
+if [ "$REPOS_SOURCE" = "dir" ]; then
+  # repos/ directory — tar and stream into the PVC
+  tar -cf - -C "$REPOS_PATH" . | kubectl -n "$NAMESPACE" exec -i "$HELPER_POD" -- sh -c "tar -xf - -C /data/gitea/repositories/"
+else
+  # gitea-repo.zip — stream and extract
+  cat "$REPOS_PATH" | kubectl -n "$NAMESPACE" exec -i "$HELPER_POD" -- sh -c "cat > /tmp/gitea-repo.zip && unzip -q -o /tmp/gitea-repo.zip -d /data/gitea/repositories/ && rm /tmp/gitea-repo.zip"
+fi
+
+# Restore data/ directory (avatars, attachments, LFS, etc.) if present
+if [ -d "$RESTORE_DIR/data" ]; then
+  echo "  Uploading data (avatars, attachments, LFS)..."
+  tar -cf - -C "$RESTORE_DIR/data" . | kubectl -n "$NAMESPACE" exec -i "$HELPER_POD" -- sh -c "tar -xf - -C /data/gitea/"
+fi
+
+# Fix ownership
+kubectl -n "$NAMESPACE" exec "$HELPER_POD" -- chown -R 1000:1000 /data/gitea/
+echo "  Repositories restored."
+
+# --- Step 5: Scale back up ---
+echo ""
+echo "[5/5] Scaling Gitea back up..."
+kubectl -n "$NAMESPACE" scale deployment "$DEPLOYMENT" --replicas=1
+kubectl -n "$NAMESPACE" rollout status deployment "$DEPLOYMENT" --timeout=120s
+
+# Cleanup temp dir
+rm -rf "$RESTORE_DIR"
+
+echo ""
+echo "=== Restore complete ==="
+echo "Gitea should be back online with restored data."
+echo "Verify at your Gitea URL that repos and users are present."