Add backup and restore scripts

2026-09-18 12:24:08 +03:00
parent 2fc905986a
commit a98df9c264
8 changed files with 237 additions and 7 deletions
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+# Restores an archive produced by backup-server.sh. Existing server state requires --force.
+set -euo pipefail
+
+root=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
+archive=${1:-}
+force=${2:-}
+project=${PROJECT_NAME:-eternitymail}
+staging=$(mktemp -d)
+
+cleanup() { rm -rf "$staging"; }
+trap cleanup EXIT
+
+[[ -n "$archive" && -f "$archive" ]] || { echo "Usage: $0 /path/to/backup.tar.gz [--force]" >&2; exit 1; }
+[[ "$force" == "--force" || ! -e "$root/.env" ]] || { echo "Refusing to overwrite an existing deployment without --force." >&2; exit 1; }
+
+tar -C "$staging" -xzf "$archive"
+(cd "$staging" && sha256sum -c SHA256SUMS)
+
+if [[ "$force" == "--force" ]]; then
+  docker compose -f "$root/docker-compose.yml" --env-file "$root/.env" down || true
+  docker volume rm "${project}-stalwart-etc" "${project}-stalwart-data" "${project}-stalwart-certs" 2>/dev/null || true
+  rm -rf /opt/eternitymail/roundcube-db /opt/eternitymail/roundcube-config
+fi
+
+cp "$staging/.env" "$root/.env"
+project=$(sed -n 's/^PROJECT_NAME=//p' "$root/.env" | head -n1)
+project=${project:-eternitymail}
+for volume in stalwart-etc stalwart-data stalwart-certs; do
+  docker volume create "${project}-${volume}" >/dev/null
+  docker run --rm -v "${project}-${volume}:/destination" -v "$staging:/backup:ro" alpine:3.21 \
+    tar -C /destination -xzf "/backup/volumes/${volume}.tar.gz"
+done
+
+for directory in roundcube-db roundcube-config; do
+  mkdir -p "/opt/eternitymail/${directory}"
+  docker run --rm -v "/opt/eternitymail/${directory}:/destination" -v "$staging:/backup:ro" alpine:3.21 \
+    tar -C /destination -xzf "/backup/bind-mounts/${directory}.tar.gz"
+done
+
+docker compose -f "$root/docker-compose.yml" --env-file "$root/.env" up -d
+echo "Restore complete. Verify with: docker compose ps"