#!/bin/sh # /etc/dhcp/dhclient-exit-hooks.d/cloudstack-guest-setup (debian/ubuntu) # /etc/dhcp/dhclient-exit-hooks (centos6,7/rhel6,7) # /etc/dhclient-exit-hooks (centos5/rhel5) # /etc/dhclient-enter-hooks (freebsd) # runs on firstboot after acquiring DHCP lease if [ "$reason" != BOUND ] && [ "$reason" != RENEW ] && [ "$reason" != REBIND ] && [ "$reason" != REBOOT ]; then return fi SED=$(which sed) LOGGER=$(which logger) HOSTNAME=$(which hostname) if test -f /etc/freebsd-update.conf; then OSTYPE="FREEBSD" elif test -f /etc/debian_version; then OSTYPE="DEBIAN" elif test -f /etc/redhat_release; then OSTYPE="REDHAT" else OSTYPE="UNKNOWN" fi # set hostname ${LOGGER} -t "cloudstack" "Setting hostname to \"${new_host_name}\"" ${HOSTNAME} "$new_host_name" > /dev/null 2>&1 if [ "${OSTYPE}" = "FREEBSD" ]; then ${SED} -i '/^hostname.*/d' /etc/rc.conf echo "hostname=\"${new_host_name}\"" >> /etc/rc.conf else echo "$new_host_name" > /etc/hostname fi # add hostname to /etc/hosts ${SED} -i "/127.0.0.1/a $new_ip_address $new_host_name.$new_domain_name $new_host_name" /etc/hosts > /dev/null 2>&1 # randomise cron timings perl -p -i -e 'if(/run-parts/) { s/^\d+/unpack("%32C*",qx{hostname -s})%60/e; s/^([\d*]+\s+)\d+/$1.($.-8)/e; }' /etc/crontab > /dev/null 2>&1 # set random password for plesk admin, if installed if test -d /usr/local/psa; then ${LOGGER} -t "cloudstack" "Plesk installed, setting initial Plesk password" PSA_PASSWORD="$(date +%s | sha256sum | base64 | head -c 25)" /usr/local/psa/admin/sbin/ch_admin_passwd > /dev/null 2>&1 fi if [ "${OSTYPE}" = "DEBIAN" ]; then # (ubuntu/debian) remove previous localhost-style ${SED} -i "/127.0.1.1.*$/d" /etc/hosts > /dev/null 2>&1 # generate ssh host keys on debian/ubuntu ${LOGGER} -t "cloudstack" "Generating ssh host keys" ssh-keygen -A && rm /etc/ssh/ssh_host_key /etc/ssh/ssh_host_key.pub # remove self rm /etc/dhcp/dhclient-exit-hooks.d/cloudstack-guest-setup > /dev/null 2>&1 elif [ "${OSTYPE}" = "REDHAT" ]; then ${LOGGER} -t "cloudstack" "Updating eth0 configuration file ifcfg-eth0" # fix centos/rhel eth0 configs local IFCFG="/etc/sysconfig/network-scripts/ifcfg-eth0" if test -f "${IFCGF}" ; then # add mac address and uuid back to ifcfg-eth0 ETH0_MAC=$(ip addr show eth0 | awk '/ether/ {print $2}') echo "HWADDR=\"${ETH0_MAC}\"" >> ${IFCFG} ETH0_UUID=$(uuidgen eth0) echo "UUID=\"${ETH0_UUID}\"" >> ${IFCFG} # rename existing (non-uuid-set) dhcp lease file mv /var/lib/dhclient/dhclient--eth0.lease /var/lib/dhclient/dhclient-"${ETH0_UUID}"-eth0.lease 2>/dev/null fi # remove self rm /etc/dhclient-exit-hooks > /dev/null 2>&1 rm /etc/dhcp/dhclient-exit-hooks > /dev/null 2>&1 elif [ "${OSTYPE}" = "FREEBSD" ]; then # remove self rm /etc/dhclient-enter-hooks else ${LOGGER} -t "cloudstack" "Linux Distribution not identified, setting generic values only." fi exit 0