alpine-overlay/kubezero/zdt-base/zdt-base.post-install

#!/bin/sh

# Enable SSH keepalive
sed -i -e 's/^[\s#]*TCPKeepAlive\s.*/TCPKeepAlive yes/' -e 's/^[\s#]*ClientAliveInterval\s.*/ClientAliveInterval 60/' /etc/ssh/sshd_config
echo 'enabled SSH keep alives'

# openRC
sed -i -e 's/^[\s#]*rc_cgroup_mode=.*/rc_cgroup_mode="unified"/' /etc/rc.conf
sed -i -e 's/^[\s#]*rc_logger=.*/rc_logger="YES"/' /etc/rc.conf
echo 'enabled cgroupv2, openRC logging'

# OpenRC parallel - causes too much chaos
#sed -i -e 's/^[\s#]*rc_parallel=.*/rc_parallel="YES"/' /etc/rc.conf
#echo 'enable parallel openRC'

# load falco kernel module at boot
grep -q falco /etc/modules || echo falco >> /etc/modules

# Setup syslog-ng json logging and apparmor tweaks
cp /lib/zdt/syslog-ng.conf /etc/syslog-ng/syslog-ng.conf
cp /lib/zdt/syslog-ng.logrotate.conf /etc/logrotate.d/syslog-ng
cp /lib/zdt/syslog-ng.apparmor /etc/apparmor.d/local/sbin.syslog-ng

[ -f /etc/periodic/daily/logrotate ] && mv /etc/periodic/daily/logrotate /etc/periodic/hourly/
echo 'syslog-ng: all to /var/log/messages as json, rotate hourly'

# use init to spawn monit
echo ":2345:respawn:/usr/bin/monit -Ic /etc/monitrc.zdt" >> /etc/inittab
echo 'Enable monit via inittab'

# QoL
[ -f /etc/profile.d/color_prompt.sh.disabled ] && mv /etc/profile.d/color_prompt.sh.disabled /etc/profile.d/color_prompt.sh || true
echo 'alias rs="doas bash"' > /etc/profile.d/alias.sh