LibrePortal/scripts/backup/engine/borg_backup.sh
librelad 0b27ed1072 refactor(desudo): funnel backup-engine privilege drop through runBackupOp
The borg/restic/kopia engines all dropped to the dedicated backup user
via scattered 'sudo -E -u $docker_install_user'. Centralize that into a
single runBackupOp helper so the backup subsystem has one audit point and
the scoped sudoers needs only the (dockerinstall) drop rule.

Also:
- owncloud config heredoc tees -> runSystem (container-UID file)
- webui_display_logins: fix the broken 'command -v sudo sqlite3' guard
  to 'command -v sqlite3' (body already runs sqlite3 via runInstallOp)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
2026-05-24 18:01:51 +01:00

53 lines
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#!/bin/bash
borgBackupAppToLocation()
{
local idx="$1"
local app_name="$2"
local manifest_sha="$3"
local source_path="$containers_dir$app_name"
if [[ ! -d "$source_path" ]]; then
isError "Source path missing for $app_name: $source_path"
return 1
fi
borgEnvExport "$idx" || return 1
local host_tag="${CFG_INSTALL_NAME:-libreportal}"
local archive
archive=$(borgArchiveName "$app_name" "$host_tag")
local comment="app=$app_name host=$host_tag engine=libreportal"
[[ -n "$manifest_sha" ]] && comment+=" manifest=$manifest_sha"
# Exclude the raw DB data dirs on the live path (see backup_db.sh).
local exclude_args=()
local p
while IFS= read -r p; do
[[ -n "$p" ]] && exclude_args+=(--exclude "$p")
done <<< "${backup_exclude_paths:-}"
local loc_name
loc_name=$(resticLocationName "$idx")
# Logs to stderr; stdout is only the archive name for the caller's $().
isNotice "Snapshotting $app_name$loc_name (archive: $archive)" >&2
runBackupOp borg create \
--comment "$comment" \
--compression auto,zstd \
"${exclude_args[@]}" \
"::$archive" \
"$source_path"
local rc=$?
if [[ $rc -eq 0 ]]; then
isSuccessful "Backup created in $loc_name: $archive" >&2
echo "$archive"
else
isError "Backup to $loc_name failed for $app_name" >&2
fi
borgEnvUnset
return $rc
}