Adding container log command.

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>

1 files changed, 144 insertions, 0 deletions

diff --git a/lib/container/log b/lib/container/log
new file mode 100755
index 0000000..41ac087
--- /dev/null
+++ b/lib/container/log
@@ -0,0 +1,144 @@
+#!/bin/sh
+
+# container-tools - Manage systemd-nspawn containers
+# Copyright (C) 2014-2019 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+set -e
+
+COMMAND="$(basename ${0})"
+
+LOG="/var/log/container-tools/container.log"
+
+Parameters ()
+{
+	GETOPT_LONGOPTIONS="name:,date:,"
+	GETOPT_OPTIONS="n:,d:,"
+
+	PARAMETERS="$(getopt --longoptions ${GETOPT_LONGOPTIONS} --name=${COMMAND} --options ${GETOPT_OPTIONS} --shell sh -- ${@})"
+
+	if [ "${?}" != "0" ]
+	then
+		echo "'${COMMAND}': getopt exit" >&2
+		exit 1
+	fi
+
+	eval set -- "${PARAMETERS}"
+
+	while true
+	do
+		case "${1}" in
+			-d|--date)
+				DATE="${2}"
+				shift 2
+				;;
+
+			-n|--name)
+				NAME="${2}"
+				shift 2
+				;;
+
+			-u|--user)
+				USER="${2}"
+				shift 2
+				;;
+
+			--)
+				shift 1
+				break
+				;;
+
+			*)
+				echo "'${COMMAND}': getopt error" >&2
+				exit 1
+				;;
+		esac
+	done
+}
+
+Usage ()
+{
+	echo "Usage: container ${COMMAND} [-n|--name NAME] [-d|--date DATE|today|today-N|yesterday] [-u|--user USER]" >&2
+	exit 1
+}
+
+Parameters "${@}"
+
+case "${DATE}" in
+	today-*)
+		DAYS="$(echo ${DATE} | awk -F- '{ print $2 }')"
+
+		START="$(date -d "${DAYS} day ago" '+%Y-%m-%d')"
+		END="$(date +%Y-%m-%d)"
+
+		DATE="(${START}"
+
+		while true
+		do
+			DATE="${DATE}|${START}"
+
+			if [ "${START}" = "${END}" ]
+			then
+				break
+			fi
+
+			START="$(date +%Y-%m-%d --date "${START} +1 day")"
+		done
+
+		DATE="${DATE})"
+		;;
+
+	today)
+		DATE="$(date +%Y-%m-%d)"
+		;;
+
+	yesterday)
+		DATE="$(date -d '1 day ago' '+%Y-%m-%d')"
+		;;
+esac
+
+if ls "${LOG}"-*.gz > /dev/null 2>&1
+then
+	LOGS="$(ls ${LOG}-*.gz) ${LOG}"
+else
+	LOGS="${LOG}"
+fi
+
+# FIXME: user
+
+for LOG in ${LOGS}
+do
+	case "${LOG}" in
+		*.gz)
+			GREP="zgrep"
+			;;
+
+		*)
+			GREP="grep"
+			;;
+	esac
+
+	case "${NAME}" in
+		"")
+			${GREP} -E "^${DATE}" "${LOG}" || true
+			;;
+
+		*)
+			${GREP} -E "^${DATE}" "${LOG}" | grep " ${NAME}" || true
+			;;
+	esac
+done