server-scripts/lxc-log
2018-09-13 07:43:21 +00:00

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#!/usr/bin/env bash
set -eu
die() { echo $1 1>&2; exit 1; }
usage() { echo "USAGE: $SCRIPT NAME SERVICE [JOURNALCTL_OPTIONS...]"; exit 0; }
SCRIPT=${0##*/}
[ $# -lt 2 ] && usage
case "$1" in
--help|-h)
usage
;;
*)
CONTAINER=$1; shift
SERVICE=$1; shift
;;
esac
CONTAINER_PATH="/lxc/$CONTAINER"
[ $EUID -eq 0 ] || die "Needs root permission"
[ -d "$CONTAINER_PATH" ] || die "No such container found: $CONTAINER"
CGROUP="/system.slice/system-lxc.slice/lxc@${CONTAINER}.service/system.slice/${SERVICE}.service"
UNIT=lxc@${CONTAINER}.service
journalctl --system _SYSTEMD_CGROUP=${CGROUP} + SYSLOG_IDENTIFIER=${SERVICE} _SYSTEMD_UNIT=${UNIT} "$@"