chore: add backup script

backup.sh

@@ -0,0 +1,116 @@
+# stops the script immediately if any error is encountered
+set -e
+
+PINK="\033[35m"
+RESET="\033[0m"
+
+backup_dir() {
+  # $1 = directory to (relative to backup folder)
+  # $2 = location of files
+
+  echo -e "$PINK  $1: backing up directory $2$RESET"
+  OUT="$BACKUP_DIR"/"$1"
+  rsync -avP --no-perms --no-owner --no-group "$2/" "$OUT/"
+}
+
+systemd_stop_and_backup_dir() {
+  # $1 = service name
+  # $2 = directory to backup
+
+  echo -e "$PINK  $1: stopping service$RESET"
+  systemctl stop "$1"
+
+  backup_dir "$1" "$2"
+
+  echo -e "$PINK  $1: starting service$RESET"
+  systemctl start "$1"
+
+  echo -e "$PINK    $1: DONE$RESET"
+}
+
+systemd_stop_and_backup_dir_arr() {
+  # excludes a couple not-needed large directories
+  # present in arr applications
+  # $1 = service name
+  # $2 = directory to backup
+
+  echo -e "$PINK  $1: stopping service$RESET"
+  systemctl stop "$1"
+
+  echo -e "$PINK  $1: backing up directory $2$RESET"
+  OUT="$BACKUP_DIR"/"$1"
+  mkdir --parents "$OUT"
+  rsync -avP --no-perms --no-owner --no-group --exclude Backups --exclude logs "$2/" "$OUT/"
+
+  echo -e "$PINK  $1: starting service$RESET"
+  systemctl start "$1"
+
+  echo -e "$PINK    $1: DONE$RESET"
+}
+
+kanidm_backup() {
+  echo -e "$PINK  kanidm: backing up database to temp file$RESET"
+  DATABASE_DUMP_PATH=$(mktemp)
+  chown kanidm:kanidm "$DATABASE_DUMP_PATH"
+  run0 -u kanidm --unit=kanidmd sh -c "kanidmd database backup \"$DATABASE_DUMP_PATH\""
+
+  echo -e "$PINK  kanidm: copying over to backup location$RESET"
+  OUT="$BACKUP_DIR/kanidm"
+  rsync -avP --no-perms --no-owner --no-group "$DATABASE_DUMP_PATH" "$OUT"
+  rm "$DATABASE_DUMP_PATH"
+
+  echo -e "$PINK    kanidm: DONE$RESET"
+}
+
+postgres_backup() {
+  echo -e "$PINK  postgres($1): backing up database $1 to temp file$RESET"
+  DATABASE_DUMP_PATH=$(mktemp)
+  chown postgres:postgres "$DATABASE_DUMP_PATH"
+  run0 -u postgres pg_dump --dbname="$1" --file="$DATABASE_DUMP_PATH"
+
+  echo -e "$PINK  postgres($1): copying over to backup location$RESET"
+  OUT="$BACKUP_DIR/$1"
+  rsync -avP --no-perms --no-owner --no-group "$DATABASE_DUMP_PATH" "$OUT"
+  rm "$DATABASE_DUMP_PATH"
+
+  echo -e "$PINK    postgres($1): DONE$RESET"
+}
+
+forgejo_backup() {
+  echo -e "$PINK  forgejo: backing up$RESET"
+  OUT="$BACKUP_DIR"/"forgejo"
+
+  # gets binary name from the systemd service, this works 
+  # with multiple derivations in the nix store and grabs
+  # the binary of the latest package.
+  FORGEJO_PATH=$(cat /etc/systemd/system/forgejo.service | grep ExecStart= | sed 's/ExecStart=//' | awk '{print $1;}')
+  run0 -u forgejo "$FORGEJO_PATH" dump --config /media/git/custom/conf/app.ini -f - > "$OUT"
+
+  echo -e "$PINK  forgejo: DONE$RESET"
+}
+
+if [ "$1" = "" ]; then
+  echo "$0: [BACKUP_DIR]"
+  exit 1
+fi
+
+BACKUP_DIR="$1"
+echo -e "$PINK  using folder $BACKUP_DIR$RESET"
+mkdir --parents "$BACKUP_DIR"
+
+systemd_stop_and_backup_dir_arr radarr /var/lib/radarr
+systemd_stop_and_backup_dir_arr sonarr /var/lib/sonarr
+systemd_stop_and_backup_dir_arr prowlarr /var/lib/prowlarr
+systemd_stop_and_backup_dir uptime-kuma /var/lib/uptime-kuma
+backup_dir deluge /media/torrents/files
+
+# karakeep has multiple services so stop all of them
+systemctl stop karakeep-web karakeep-browser karakeep-workers
+systemd_stop_and_backup_dir karakeep-web /var/lib/karakeep
+systemctl start karakeep-web karakeep-browser karakeep-workers
+
+kanidm_backup
+forgejo_backup
+postgres_backup miniflux
+
+echo -e "\n\nBACKUP COMPLETED!"