summaryrefslogtreecommitdiffstats
path: root/libexec/container/start-qemu
diff options
context:
space:
mode:
authorSimon Spöhel <simon@spoehel.ch>2021-04-19 05:56:43 +0000
committerSakirnth Nagarasa <sakirnth@gmail.com>2021-09-01 08:24:59 +0000
commitc46da5d671731e9806b63819254c4298e112cd59 (patch)
tree7febfffdc5ffee74b525287c3f04dedd52922ee9 /libexec/container/start-qemu
parentAdding basic functionality to create VM images using debconf. (diff)
downloadcompute-tools-c46da5d671731e9806b63819254c4298e112cd59.tar.xz
compute-tools-c46da5d671731e9806b63819254c4298e112cd59.zip
Start (dummy commit).
Diffstat (limited to '')
-rwxr-xr-xlibexec/container/start-qemu530
1 files changed, 530 insertions, 0 deletions
diff --git a/libexec/container/start-qemu b/libexec/container/start-qemu
new file mode 100755
index 0000000..b7953c1
--- /dev/null
+++ b/libexec/container/start-qemu
@@ -0,0 +1,530 @@
+#!/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/${SOFTWARE}/hooks"
+MACHINES="/var/lib/machines"
+
+START="false"
+SYSTEMCTL="true"
+
+Parameters ()
+{
+ OPTIONS_ALL=""
+
+ GETOPT_LONGOPTIONS="name:,force,nspawn,start,verbose,"
+ GETOPT_OPTIONS="n:,f,v,"
+
+ PARAMETERS="$(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
+ ;;
+
+ -f|--force)
+ FORCE="true"
+ shift 1
+
+ OPTIONS_ALL="${OPTIONS_ALL} --force"
+ ;;
+
+ --nspawn)
+ # internal option
+ SYSTEMCTL="false"
+ shift 1
+ ;;
+
+ --start)
+ # internal option
+ START="true"
+ SYSTEMCTL="false"
+ shift 1
+ ;;
+
+ -v|--verbose)
+ VERBOSE="true"
+ shift 1
+
+ OPTIONS_ALL="${OPTIONS_ALL} --verbose"
+ ;;
+
+ --)
+ shift 1
+ break
+ ;;
+
+ *)
+ echo "'${COMMAND}': getopt error" >&2
+ exit 1
+ ;;
+ esac
+ done
+}
+
+Usage ()
+{
+ echo "Usage: ${PROGRAM} ${COMMAND} -n|--name NAME [-f|--force]" >&2
+ exit 1
+}
+
+Parameters "${@}"
+
+if [ -z "${NAME}" ]
+then
+ Usage
+fi
+
+# hooks
+export NAME
+
+case "${NAME}" in
+ ALL)
+ NAMES="$(${PROGRAM} list --format shell --stopped)"
+
+ for NAME in ${NAMES}
+ do
+ ${PROGRAM} start --name ${NAME} ${OPTIONS_ALL} || true
+ done
+
+ exit 0
+ ;;
+esac
+
+if [ ! -e "${MACHINES}/${NAME}" ]
+then
+ echo "'${NAME}': no such container" >&2
+ exit 1
+fi
+
+case "${START}" in
+ false)
+ STATE="$(machinectl show ${NAME} 2>&1 | awk -FState= '/^State=/ { print $2 }')"
+
+ case "${STATE}" in
+ running)
+ echo "'${NAME}': container is already started" >&2
+ exit 1
+ ;;
+ esac
+ ;;
+esac
+
+if [ -e "${MACHINES}/.#${NAME}.lck" ]
+then
+ case "${FORCE}" in
+ true)
+ rm -f "${MACHINES}/.#${NAME}.lck"
+
+ VETHS="$(awk -Fnetwork-veth-extra= '/^network-veth-extra=/ { print $2 }' ${CONFIG}/${NAME}.conf | awk -F: '{ print $1 }')"
+
+ for VETH in ${VETHS}
+ do
+ ip link delete ${VETH} > /dev/null 2>&1 || true
+ done
+ ;;
+
+ *)
+ echo "'${NAME}': container is locked" >&2
+ exit 1
+ ;;
+ esac
+fi
+
+HOST_ARCHITECTURE="$(dpkg --print-architecture)"
+MACHINE_ARCHITECTURE="$(chroot ${MACHINES}/${NAME} dpkg --print-architecture)"
+
+case "${HOST_ARCHITECTURE}" in
+ amd64)
+ case "${MACHINE_ARCHITECTURE}" in
+ i386)
+ SETARCH="setarch i686"
+ ;;
+
+ *)
+ SETARCH=""
+ ;;
+ esac
+ ;;
+esac
+
+case "${START}" in
+ start)
+ ;;
+
+ *)
+ # Pre hooks
+ for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
+ do
+ if [ -x "${FILE}" ]
+ then
+ "${FILE}"
+ fi
+ done
+ ;;
+esac
+
+# config
+if [ -e "${CONFIG}/${NAME}.conf" ]
+then
+ CNT_OVERLAY="$(awk -Fcnt.overlay= '/^cnt.overlay=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+ CNT_OVERLAY_OPTIONS="$(awk -Fcnt.overlay-options= '/^cnt.overlay-options=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${CNT_OVERLAY}" ]
+ then
+ CNT_OVERLAYS="$(echo ${CNT_OVERLAY} | sed -e 's|;| |g')"
+
+ COUNT="0"
+ for CNT_OVERLAY in ${CNT_OVERLAYS}
+ do
+ DIRECTORY_LOWER="$(echo ${CNT_OVERLAY} | awk -F: '{ print $1 }')"
+ DIRECTORY_UPPER="$(echo ${CNT_OVERLAY} | awk -F: '{ print $2 }')"
+ DIRECTORY_WORK="$(echo ${CNT_OVERLAY} | awk -F: '{ print $3 }')"
+ DIRECTORY_MERGED="$(echo ${CNT_OVERLAY} | awk -F: '{ print $4 }')"
+
+ COUNT="$((${COUNT} + 1))"
+ CNT_OVERLAY_OPTION="$(echo ${CNT_OVERLAY_OPTIONS} | awk -F ';' "{ print \$${COUNT} }")"
+
+ for DIRECTORY in "${DIRECTORY_LOWER}" "${DIRECTORY_UPPER}" "${DIRECTORY_WORK}" "${DIRECTORY_MERGED}"
+ do
+ mkdir -p "${DIRECTORY}"
+ done
+
+ if ! findmnt -n -o SOURCE "${DIRECTORY_MERGED}" | grep -qs '^cnt.overlay-'
+ then
+ if [ -n "${CNT_OVERLAY_OPTION}" ]
+ then
+ CNT_OVERLAY_OPTION="-o ${CNT_OVERLAY_OPTION}"
+ fi
+
+ mount cnt.overlay-${NAME} -t overlay ${CNT_OVERLAY_OPTION} -olowerdir="${DIRECTORY_LOWER}",upperdir="${DIRECTORY_UPPER}",workdir="${DIRECTORY_WORK}",default_permissions "${DIRECTORY_MERGED}"
+ fi
+ done
+ fi
+
+ BIND="$(awk -Fbind= '/^bind=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${BIND}" ]
+ then
+ BINDS="$(echo ${BIND} | sed -e 's|;| |g')"
+
+ for BIND in ${BINDS}
+ do
+ DIRECTORY="$(echo ${BIND} | awk -F: '{ print $1 }')"
+
+ if [ ! -e "${DIRECTORY}" ]
+ then
+ echo "'${DIRECTORY}': creating non-existing directory for bind mounting"
+ mkdir -p "${DIRECTORY}"
+ fi
+ done
+
+ BIND=""
+
+ for DIRECTORIES in ${BINDS}
+ do
+ BIND="${BIND} --bind ${DIRECTORIES}"
+ done
+ fi
+
+ BIND_RO="$(awk -Fbind-ro= '/^bind-ro=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${BIND_RO}" ]
+ then
+ BINDS_RO="$(echo ${BIND_RO} | sed -e 's|;| |g')"
+
+ for BIND_RO in ${BINDS_RO}
+ do
+ DIRECTORY="$(echo ${BIND_RO} | awk -F: '{ print $1 }')"
+
+ if [ ! -e "${DIRECTORY}" ]
+ then
+ echo "'${DIRECTORY}': creating non-existing directory for bind-ro mounting"
+ mkdir -p "${DIRECTORY}"
+ fi
+ done
+
+ BIND_RO=""
+
+ for DIRECTORIES in ${BINDS_RO}
+ do
+ BIND_RO="${BIND_RO} --bind-ro ${DIRECTORIES}"
+ done
+ fi
+
+ BOOT="$(awk -Fboot= '/^boot=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo yes)"
+
+ case "${BOOT}" in
+ yes)
+ BOOT="--boot"
+ ;;
+
+ *)
+ BOOT=""
+ ;;
+ esac
+
+ CAPABILITY="$(awk -Fcapability= '/^capability=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ case "${CAPABILITY}" in
+ "")
+ CAPABILITY=""
+ ;;
+
+ *)
+ CAPABILITY="--capability=${CAPABILITY}"
+ ;;
+ esac
+
+ DIRECTORY="$(awk -Fdirectory= '/^directory=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo ${MACHINES}/${NAMES})"
+ DIRECTORY="--directory ${DIRECTORY}"
+
+ DROP_CAPABILITY="$(awk -Fdrop-capability= '/^drop-capability=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ case "${DROP_CAPABILITY}" in
+ "")
+ DROP_CAPABILITY=""
+ ;;
+
+ *)
+ DROP_CAPABILITY="--drop-capability=${DROP_CAPABILITY}"
+ ;;
+ esac
+
+ LINK_JOURNAL="$(awk -Flink-journal= '/^link-journal=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo no)"
+
+ case "${LINK_JOURNAL}" in
+ yes)
+ LINK_JOURNAL="--link-journal=yes"
+ ;;
+
+ *)
+ LINK_JOURNAL="--link-journal=no"
+ ;;
+ esac
+
+ MACHINE="--machine=${NAME}"
+
+ NETWORK_VETH_EXTRA=""
+
+ VETHS="$(awk -Fnetwork-veth-extra= '/^network-veth-extra=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ case "${VETHS}" in
+ "")
+ ;;
+
+ *)
+ for VETH in ${VETHS}
+ do
+ NETWORK_VETH_EXTRA="${NETWORK_VETH_EXTRA} --network-veth-extra=${VETH}"
+ INTERFACE="$(echo ${VETH} | awk -F: '{ print $1 }')"
+
+ if [ "$(echo ${INTERFACE} | wc -c)" -gt 15 ]
+ then
+ echo "'${INTERFACE}': name exceeds maximum of 15 characters, network might be not working."
+ fi
+ done
+ ;;
+ esac
+
+ PRIVATE_USERS="$(awk -Fprivate-users= '/^private-users=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo no)"
+
+ case "${PRIVATE_USERS}" in
+ yes)
+ PRIVATE_USERS="--private-users=yes"
+ ;;
+
+ *)
+ PRIVATE_USERS="--private-users=no"
+ ;;
+ esac
+
+ REGISTER="$(awk -Fregister= '/^register=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo yes)"
+
+ case "${REGISTER}" in
+ yes)
+ REGISTER="--register=yes"
+ ;;
+
+ *)
+ REGISTER="--register=no"
+ ;;
+ esac
+
+ BLOCK_IO_DEVICE_WEIGHT="$(awk -FBlockIODeviceWeight= '/^BlockIODeviceWeight=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${BLOCK_IO_DEVICE_WEIGHT}" ]
+ then
+ BLOCK_IO_DEVICE_WEIGHT="BlockIODeviceWeight=${BLOCK_IO_DEVICE_WEIGHT}"
+ SET_PROPERTY="true"
+ fi
+
+ BLOCK_IO_READ_BANDWIDTH="$(awk -FBlockIOReadBandwidth= '/^BlockIOReadBandwidth=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${BLOCK_IO_READ_BANDWIDTH}" ]
+ then
+ BLOCK_IO_READ_BANDWIDTH="BlockIOReadBandwidth=${BLOCK_IO_READ_BANDWIDTH}"
+ SET_PROPERTY="true"
+ fi
+
+ BLOCK_IO_WEIGHT="$(awk -FBlockIOWeight= '/^BlockIOWeight=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${BLOCK_IO_WEIGHT}" ]
+ then
+ BLOCK_IO_WEIGHT="BlockIOWeight=${BLOCK_IO_WEIGHT}"
+ SET_PROPERTY="true"
+ fi
+
+ BLOCK_IO_WRITE_BANDWIDTH="$(awk -FBlockIOWriteBandwidth=/= '/^BlockIOWriteBandwidth=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${BLOCK_IO_WRITE_BANDWIDTH}" ]
+ then
+ BLOCK_IO_WRITE_BANDWIDTH="BlockIOWriteBandwidth=${BLOCK_IO_WRITE_BANDWIDTH}"
+ SET_PROPERTY="true"
+ fi
+
+ CPU_QUOTA="$(awk -FCPUQuota= '/^CPUQuota=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${CPU_QUOTA}" ]
+ then
+ CPU_QUOTA="CPUQuota=${CPU_QUOTA}"
+ SET_PROPERTY="true"
+ fi
+
+ CPU_SHARES="$(awk -FCPUShares= '/^CPUShares=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${CPU_SHARES}" ]
+ then
+ CPU_SHARES="CPUShares=${CPU_SHARES}"
+ SET_PROPERTY="true"
+ fi
+
+ MEMORY_LIMIT="$(awk -FMemoryLimit= '/^MemoryLimit=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${MEMORY_LIMIT}" ]
+ then
+ MEMORY_LIMIT="MemoryLimit=${MEMORY_LIMIT}"
+ SET_PROPERTY="true"
+ fi
+
+ TASKS_MAX="$(awk -FTasksMax= '/^TasksMax=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+ if [ -n "${TASKS_MAX}" ]
+ then
+ TASKS_MAX="TasksMax=${TASKS_MAX}"
+ SET_PROPERTY="true"
+ fi
+fi
+
+case "${SYSTEMCTL}" in
+ true)
+ systemctl start ${PROGRAM}@${NAME}.service
+
+ # Post hooks
+ for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
+ do
+ if [ -x "${FILE}" ]
+ then
+ "${FILE}"
+ fi
+ done
+
+ exit 0
+ ;;
+esac
+
+case "${START}" in
+ true)
+
+ case "${SET_PROPERTY}" in
+ true)
+ systemctl --runtime set-property ${NAME} ${BLOCK_IO_DEVICE_WEIGHT} ${BLOCK_IO_READ_BANDWIDTH} ${BLOCK_IO_WEIGHT} ${BLOCK_IO_WRITE_BANDWIDTH} ${CPU_QUOTA} ${CPU_SHARES} ${MEMORY_LIMIT} ${TASKS_MAX}
+ ;;
+ esac
+ ;;
+
+ *)
+ # Run
+
+ case "${VERBOSE}" in
+ true)
+ echo -n "Starting container ${NAME}..."
+ ;;
+ esac
+
+ ${SETARCH} systemd-nspawn --keep-unit ${BIND} ${BIND_RO} ${BOOT} ${CAPABILITY} ${DIRECTORY} ${DROP_CAPABILITY} ${MACHINE} ${NETWORK_VETH_EXTRA} ${LINK_JOURNAL} ${REGISTER}
+
+
+ case "${VERBOSE}" in
+ true)
+ echo " done."
+ ;;
+ esac
+ ;;
+esac
+
+# we have to wait for systemd-nspawn to create the veth interfaces
+sleep 1
+NETWORK_BRIDGES="$(awk -Fcnt.network-bridge= '/^cnt.network-bridge=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
+
+case "${NETWORK_BRIDGES}" in
+ "")
+ ;;
+
+ *)
+ for BRIDGE_DEFINITION in ${NETWORK_BRIDGES}
+ do
+ INTERFACE="$(echo ${BRIDGE_DEFINITION} | awk -F: '{ print $1 }')"
+ BRIDGE="$(echo ${BRIDGE_DEFINITION} | awk -F: '{ print $2 }')"
+
+ if [ "$(echo ${INTERFACE} | wc -c)" -gt 15 ]
+ then
+ echo "'${INTERFACE}': name exceeds maximum of 15 characters, network might be not working."
+ fi
+
+ if [ -n "${BRIDGE}" ] && [ -n "${INTERFACE}" ]
+ then
+
+ ip link set "${INTERFACE}" up
+ ovs-vsctl --may-exist add-port "${BRIDGE}" "${INTERFACE}"
+
+ else
+ echo "Warning bridge definition '${BRIDGE_DEFINITION}' not recognized (expected <bridge>:<interface>): Ignoring"
+ fi
+ done
+ ;;
+esac