Adding initial container info command.

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

1 files changed, 214 insertions, 0 deletions

diff --git a/libexec/container/info b/libexec/container/info
new file mode 100755
index 0000000..63c42ff
--- /dev/null
+++ b/libexec/container/info
@@ -0,0 +1,214 @@
+#!/bin/sh
+
+# Copyright (C) 2014-2021 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 <https://www.gnu.org/licenses/>.
+
+set -e
+
+PROJECT="open-infrastructure"
+SOFTWARE="compute-tools"
+PROGRAM="container"
+COMMAND="$(basename ${0})"
+
+CONFIG="/etc/${SOFTWARE}/config"
+HOOKS="/etc/${SOFTWARE}/hooks"
+MACHINES="/var/lib/machines"
+
+VERSION="$(${PROGRAM} version)"
+
+Parameters ()
+{
+	GETOPT_LONGOPTIONS="name:,status,os,ip,"
+	GETOPT_OPTIONS="n:,"
+
+	PARAMETERS="$(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 "${1}" in
+			-n|--name)
+				NAME="${2}"
+				shift 2
+				;;
+
+			--status)
+				ACTIONS="${ACTIONS} status"
+				shift 1
+				;;
+
+			--os)
+				ACTIONS="${ACTIONS} os"
+				shift 1
+				;;
+
+			--ip)
+				ACTIONS="${ACTIONS} ip"
+				shift 1
+				;;
+
+			--)
+				shift 1
+				break
+				;;
+
+			*)
+				echo "'${COMMAND}': getopt error" >&2
+				exit 1
+				;;
+		esac
+	done
+}
+
+Usage ()
+{
+	echo "Usage: ${PROGRAM} ${COMMAND} -n|--name NAME [--status] [--os] [--ip]" >&2
+	exit 1
+}
+
+Parameters "${@}"
+
+# Pre hooks
+for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done
+
+ACTIONS="${ACTIONS:-status os ip}"
+HOST="$(cat /etc/hostname)"
+
+# Run
+
+# Status
+STATUS="$(machinectl show ${NAME} 2>&1 | awk -FState= '/^State=/ { print $2 }')"
+
+if [ -e "${CONFIG}/${NAME}.conf" ]
+then
+	CONTAINER_SERVER="$(awk -Fcnt.container-server= '/^cnt.container-server=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+	CONTAINER_SERVER="${CONTAINER_SERVER:-false}"
+
+	case "${CONTAINER_SERVER}" in
+		${HOST}|true)
+			;;
+
+		*)
+			STATUS="other"
+			;;
+	esac
+else
+	STATUS="other"
+fi
+
+case "${STATUS}" in
+	running)
+		STATUS="started"
+	;;
+
+	other)
+		;;
+
+	*)
+		STATUS="stopped"
+		;;
+esac
+
+# OS
+VERSION_BASH="$(chroot ${MACHINES}/${NAME} apt-cache policy bash | awk '/Installed: / { print $2 }')"
+
+case "${VERSION_BASH}" in
+	4.1*)
+		OS="Debian 6 (squeeze)"
+		;;
+
+	4.2*)
+		OS="Debian 7 (wheezy)"
+		;;
+
+	4.3*)
+		OS="Debian 8 (jessie)"
+		;;
+
+	4.4*)
+		OS="Debian 9 (stretch)"
+		;;
+
+	5.0*)
+		OS="Debian 10 (buster)"
+		;;
+
+	5.1*)
+		OS="Debian 11 (bullseye)"
+		;;
+
+	*)
+		OS="n/a"
+		;;
+esac
+
+case "${STATUS}" in
+	started)
+		IP="$(cnt run -n ${NAME} -- hostname -I | awk '{ print $1 }')"
+		;;
+
+	*)
+		if ls "${MACHINES}/${CONTAINER}/etc/systemd/network"/*.network > /dev/null 2>&1
+		then
+			IP="$(awk -FAddress= '/^Address/ { print $2 }' ${MACHINES}/${CONTAINER}/etc/systemd/network/*.network | head -n1)"
+		elif [ -e "${MACHINES}/${CONTAINER}/etc/network/interfaces" ]
+		then
+			IP="$(awk '/address/ { print $2 }' ${MACHINES}/${CONTAINER}/etc/network/interfaces | head -n1)"
+		fi
+
+		IP="${IP:-n/a}"
+		;;
+esac
+
+for ACTION in ${ACTIONS}
+do
+	case "${ACTION}" in
+		status)
+			echo "${STATUS}"
+			;;
+
+		os)
+			echo "${OS}"
+			;;
+
+		ip)
+			echo "${IP}"
+			;;
+	esac
+done
+
+# Post hooks
+for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+do
+	if [ -x "${FILE}" ]
+	then
+		"${FILE}"
+	fi
+done