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#!/bin/bash -x
### this script is called when building the docker image: it's executing in a temp container
echo "------------------------ Starting $(basename $0) -----------------------"
function debug() {
set +x
echo "-------------------------"
echo "Command failed."
echo "Running sleep for 1 day. To proceed:"
echo "* run 'killall sleep' to continue"
echo "* run 'killall -9 sleep' to abort the build"
sig=0
sleep 86400 || sig=$?
# if killed -9, then abort
[[ $sig == 137 ]] && exit 1 # abort
set -x
return 0 # continue
}
# get the INSTALL dir (the one where we were launched)
INSTDIR=$(cd $(dirname $0) && pwd -P)
echo "Detected container install dir = $INSTDIR"
if [[ -f $INSTDIR/DEBUG ]]; then
echo "#### DEBUG MODE IS ACTIVE ####"
trap debug ERR # on error, run a sleep tp debug container
fi
################################## variables #################################
# source variables in conf file
. $INSTDIR/image.conf
################################## install docker endpoint #####################
# install the entrypoint script in /usr/bin
install --mode=755 $INSTDIR/wait_for_net.sh /usr/bin/
################################## install first-run service ###################
# all operations requiring runnning daemons (inc. systemd) must be run at first
# container instanciation
if [[ "$FIRSTRUN" == "yes" ]]; then
install --mode=755 $INSTDIR/firstrun.sh /root/firstrun.sh
install --mode=644 $INSTDIR/image.conf /root/firstrun.conf
[[ -d $INSTDIR/firstrun.d ]] && cp -a $INSTDIR/firstrun.d /root/
mkdir -p /etc/systemd/system/multi-user.target.wants/
cat <<EOF >/etc/systemd/system/multi-user.target.wants/firstrun.service
[Unit]
Description=Firstrun service
After=network.target
[Service]
Type=oneshot
ExecStart=-/bin/bash -c /root/firstrun.sh
TimeoutSec=0
StandardInput=null
RemainAfterExit=yes
[Install]
WantedBy=multi-user.target
EOF
fi
# helper func to install a firstrun hook
function firstrun_add() {
script=$1
level=${2:-50}
name=${3:-$(basename $script)}
mkdir -p /root/firstrun.d
cp $script /root/firstrun.d/${level}_$name
}
################################## adjust system timezone ############################
ln -sf ../usr/share/zoneinfo/$TIMEZONE /etc/localtime
################################## run other scripts in turn ##############
for script in $INSTDIR/setup.d/*; do
case $(basename $script) in
[0-9][0-9]_*)
echo "--------------------- start script $script ---------------------"
. $script
echo "--------------------- end of script $script ---------------------"
;;
*)
;;
esac
done
############################### cleanup ###################################
cd /
apt-get clean # clean apt caches
rm -rf /var/lib/apt/lists/*
rm -rf $INSTDIR # yes, I can auto-terminate myself !
# cleanup /tmp without removing the dir
for x in $(find /tmp -mindepth 1); do
rm -rf $x || true
done
echo "------------------------ $(basename $0) finished -----------------------"
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