#!/bin/sh
# postinst script for ganeti

set -e

# summary of how this script can be called:
#        * <postinst> `configure' <most-recently-configured-version>
#        * <old-postinst> `abort-upgrade' <new version>
#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
#          <new-version>
#        * <postinst> `abort-remove'
#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
#          <failed-install-package> <version> `removing'
#          <conflicting-package> <version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package


case "$1" in
    configure)
	# Groups
	addgroup --quiet --system "gnt-admin"
	addgroup --quiet --system "gnt-confd"
	addgroup --quiet --system "gnt-daemons"
	addgroup --quiet --system "gnt-luxid"
	addgroup --quiet --system "gnt-masterd"
	addgroup --quiet --system "gnt-metad"
	addgroup --quiet --system "gnt-rapi"

	# Users
	adduser --quiet --system --ingroup "gnt-confd" --no-create-home --disabled-password --disabled-login --home /var/lib/ganeti "gnt-confd"
	adduser --quiet --system --ingroup "gnt-confd" --no-create-home --disabled-password --disabled-login --home /var/lib/ganeti "gnt-masterd"
	adduser --quiet --system --ingroup "gnt-luxid" --no-create-home --disabled-password --disabled-login --home /var/lib/ganeti "gnt-masterd"
	adduser --quiet --system --ingroup "gnt-masterd" --no-create-home --disabled-password --disabled-login --home /var/lib/ganeti "gnt-masterd"
	adduser --quiet --system --ingroup "gnt-metad" --no-create-home --disabled-password --disabled-login --home /var/lib/ganeti "gnt-metad"
	adduser --quiet --system --ingroup "gnt-rapi" --no-create-home --disabled-password --disabled-login --home /var/lib/ganeti "gnt-rapi"

	# Group memberships
	adduser --quiet "gnt-confd" "gnt-daemons"
	adduser --quiet "gnt-masterd" "gnt-admin"
	adduser --quiet "gnt-masterd" "gnt-confd"
	adduser --quiet "gnt-masterd" "gnt-daemons"
	adduser --quiet "gnt-masterd" "gnt-masterd"
	adduser --quiet "gnt-metad" "gnt-daemons"
	adduser --quiet "gnt-rapi" "gnt-admin"
	adduser --quiet "gnt-rapi" "gnt-daemons"

	update_symlinks=0
	# Handle symlinks...
	# ... if we are upgrading from pre-2.10 versions
	if [ -n "$2" ] && dpkg --compare-versions "$2" lt 2.10.0; then
		update_symlinks=1

	# ... or if we are not part of a cluster
	elif ! /usr/lib/ganeti/3.0/usr/lib/ganeti/daemon-util check-config 2>/dev/null; then
		update_symlinks=1

	# ... or if something is broken
	elif [ ! -e /etc/ganeti/lib -o ! -e /etc/ganeti/share ]; then
		update_symlinks=1
	fi

	if [ "$update_symlinks" = 1 ]; then
		for target in lib share; do
			if [ "$(readlink /etc/ganeti/${target})" != "/usr/${target}/ganeti/3.0" ]; then
				echo "Linking /etc/ganeti/${target} to /usr/${target}/ganeti/3.0"
				ln -snf /usr/${target}/ganeti/3.0 /etc/ganeti/${target}
			fi
		done
	fi

	# Restart the service if we have either updated the symlinks, or
	# shipped the same minor version. We only stop the service here and
	# let the debhelper snippet below start it again.
	if [ "$update_symlinks" = 1 -o "${2%.*}" = "3.0" ]; then
		if [ -x "/etc/init.d/ganeti" ]; then
			invoke-rc.d ganeti stop || true
		fi
	fi
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

# Automatically added by dh_installdeb/13.3.4
dpkg-maintscript-helper rm_conffile /etc/bash_completion.d/ganeti 2.16.0\~rc2-6\~ -- "$@"
# End automatically added section
# Automatically added by dh_installinit/13.3.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -x "/etc/init.d/ganeti" ]; then
		update-rc.d ganeti defaults 20 80 >/dev/null
		invoke-rc.d --skip-systemd-native ganeti start || true
	fi
fi
# End automatically added section


# Fix jobqueue archive permissions
# This may take a while, so we only do this if necessary
find /var/lib/ganeti/queue/archive -mindepth 1 -maxdepth 1 \
		-type d -not -user "gnt-masterd" 2>/dev/null | while read dirname; do
	/usr/lib/ganeti/ensure-dirs --full-run
	break
done

exit 0