ClickHouse/debian/clickhouse-server.postinst

102 lines
4.2 KiB
Bash

#!/bin/sh
set -e
CLICKHOUSE_USER=${CLICKHOUSE_USER=clickhouse}
CLICKHOUSE_GROUP=${CLICKHOUSE_GROUP=${CLICKHOUSE_USER}}
CLICKHOUSE_CONFDIR=${CLICKHOUSE_CONFDIR=/etc/clickhouse-server}
CLICKHOUSE_DATADIR=${CLICKHOUSE_DATADIR=/var/lib/clickhouse}
CLICKHOUSE_LOGDIR=${CLICKHOUSE_LOGDIR=/var/log/clickhouse-server}
CLICKHOUSE_BINDIR=${CLICKHOUSE_BINDIR=/usr/bin}
CLICKHOUSE_GENERIC_PROGRAM=${CLICKHOUSE_GENERIC_PROGRAM=clickhouse}
OS=${OS=`lsb_release -is 2>/dev/null || uname -s ||:`}
test -f /etc/default/clickhouse && . /etc/default/clickhouse
if [ "$1" = configure ]; then
if [ -x "/bin/systemctl" ] && [ -f /etc/systemd/system/clickhouse-server.service ] && [ -d /run/systemd/system ]; then
# if old rc.d service present - remove it
if [ -x "/etc/init.d/clickhouse-server" ]; then
update-rc.d clickhouse-server remove
echo "ClickHouse init script has migrated to systemd. Please manually stop old server and restart the service: sudo killall clickhouse-server && sleep 5 && sudo service clickhouse-server restart"
fi
/bin/systemctl daemon-reload
/bin/systemctl enable clickhouse-server
else
# If you downgrading to version older than 1.1.54336 run: systemctl disable clickhouse-server
if [ -x "/etc/init.d/clickhouse-server" ]; then
if [ "$OS" = "rhel" ] || [ "$OS" = "centos" ] || [ "$OS" = "fedora" ]; then
echo # TODO
else
update-rc.d clickhouse-server defaults 19 19 >/dev/null || exit $?
fi
fi
fi
# Make sure the administrative user exists
if ! getent passwd ${CLICKHOUSE_USER} > /dev/null; then
if [ "$OS" = "rhel" ] || [ "$OS" = "centos" ] || [ "$OS" = "fedora" ]; then
adduser --system --no-create-home --home /nonexistent \
--shell /bin/false ${CLICKHOUSE_USER} > /dev/null
else
adduser --system --disabled-login --no-create-home --home /nonexistent \
--shell /bin/false --group --gecos "ClickHouse server" ${CLICKHOUSE_USER} > /dev/null
fi
fi
# if the user was created manually, make sure the group is there as well
if ! getent group ${CLICKHOUSE_GROUP} > /dev/null; then
addgroup --system ${CLICKHOUSE_GROUP} > /dev/null
fi
# make sure user is in the correct group
if ! id -Gn ${CLICKHOUSE_USER} | grep -qw ${CLICKHOUSE_USER}; then
adduser ${CLICKHOUSE_USER} ${CLICKHOUSE_GROUP} > /dev/null
fi
# check validity of user and group
if [ "`id -u ${CLICKHOUSE_USER}`" -eq 0 ]; then
echo "The ${CLICKHOUSE_USER} system user must not have uid 0 (root).
Please fix this and reinstall this package." >&2
exit 1
fi
if [ "`id -g ${CLICKHOUSE_GROUP}`" -eq 0 ]; then
echo "The ${CLICKHOUSE_USER} system user must not have root as primary group.
Please fix this and reinstall this package." >&2
exit 1
fi
if [ ! -d ${CLICKHOUSE_DATADIR} ]; then
mkdir -p ${CLICKHOUSE_DATADIR}
chown ${CLICKHOUSE_USER}:${CLICKHOUSE_GROUP} ${CLICKHOUSE_DATADIR}
chmod 700 ${CLICKHOUSE_DATADIR}
fi
if [ -d ${CLICKHOUSE_CONFDIR} ]; then
rm -v ${CLICKHOUSE_CONFDIR}/*-preprocessed.xml ||:
fi
ln -s ${CLICKHOUSE_DATADIR}/preprocessed_configs ${CLICKHOUSE_CONFDIR}/preprocessed ||:
if [ ! -d ${CLICKHOUSE_LOGDIR} ]; then
mkdir -p ${CLICKHOUSE_LOGDIR}
chown root:${CLICKHOUSE_GROUP} ${CLICKHOUSE_LOGDIR}
# Allow everyone to read logs, root and clickhouse to read-write
chmod 775 ${CLICKHOUSE_LOGDIR}
fi
# Set net_admin capabilities to support introspection of "taskstats" performance metrics from the kernel.
command -v setcap >/dev/null \
&& setcap "cap_net_admin=+ep cap_ipc_lock=+ep" "${CLICKHOUSE_BINDIR}/${CLICKHOUSE_GENERIC_PROGRAM}" \
|| echo "Cannot set 'net_admin' or 'ipc_lock' capability for clickhouse binary. This is optional. Taskstats accounting will be disabled. To enable taskstats accounting you may add the required capability later manually."
# Clean old dynamic compilation results
if [ -d "${CLICKHOUSE_DATADIR}/build" ]; then
rm -f ${CLICKHOUSE_DATADIR}/build/*.cpp ${CLICKHOUSE_DATADIR}/build/*.so ||:
fi
fi