Add preliminary backups

abra.sh

@@ -1,2 +1,14 @@
 export APP_INI_VERSION=v7
 export DOCKER_SETUP_SH_VERSION=v1
+
+abra_backup_app() {
+  _abra_backup_dir "app:/var/lib/gitea"
+}
+
+abra_backup_db() {
+  _abra_backup_mysql "db" "gitea"
+}
+
+abra_backup() {
+  abra_backup_app && abra_backup_db
+}