File config.sh of Package SLES15-SP1-SAP-Azure-BYOS

#!/bin/bash
#================
# FILE          : config.sh
#----------------
# PROJECT       : openSUSE KIWI Image System
# COPYRIGHT     : (c) 2018 SUSE LLC. All rights reserved
#               :
# AUTHOR        : Public Cloud Team public-cloud-dev@susecloud.net
#               :
# BELONGS TO    : Operating System images
#               :
# DESCRIPTION   : configuration script for SUSE based
#               : operating systems
#               :
#               :
# STATUS        : Production
#----------------
#======================================
# Functions...
#--------------------------------------
test -f /.kconfig && . /.kconfig
test -f /.profile && . /.profile

#======================================
# Greeting...
#--------------------------------------
echo "Configure image: [$kiwi_iname]..."

#======================================
# Setup baseproduct link
#--------------------------------------
pushd /etc/products.d
ln -sf SLES_SAP.prod baseproduct
popd

#======================================
# Setup the build keys
#--------------------------------------
suseImportBuildKey

#=========================================
# Set sysconfig options
#-----------------------------------------

# Set sysconfig for default variable we want to change
baseUpdateSysConfig /etc/sysconfig/keyboard COMPOSETABLE "clear latin1.add"
baseUpdateSysConfig /etc/sysconfig/language INSTALLED_LANGUAGES ""
baseUpdateSysConfig /etc/sysconfig/language RC_LANG "C.UTF-8"
baseUpdateSysConfig /etc/sysconfig/network/dhcp DHCLIENT_SET_HOSTNAME no
baseUpdateSysConfig /etc/sysconfig/network/dhcp WRITE_HOSTNAME_TO_HOSTS no
baseUpdateSysConfig /etc/sysconfig/security POLKIT_DEFAULT_PRIVS restrictive
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_LOAD_MODULES "nf_conntrack_netbios_ns"
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_DEV_EXT "any eth0"
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_LOG_DROP_CRIT yes
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_LOG_DROP_ALL no
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_LOG_ACCEPT_CRIT yes
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_LOG_ACCEPT_ALL no
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_ALLOW_FW_BROADCAST_EXT no
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_ALLOW_FW_BROADCAST_INT no
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_ALLOW_FW_BROADCAST_DMZ no
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_IGNORE_FW_BROADCAST_INT no
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_IGNORE_FW_BROADCAST_DMZ no
baseUpdateSysConfig /etc/sysconfig/SuSEfirewall2 FW_IPSEC_TRUST no
baseUpdateSysConfig /etc/sysconfig/windowmanager DEFAULT_WM ""
baseUpdateSysConfig /etc/sysconfig/windowmanager INSTALL_DESKTOP_EXTENSIONS no

# Set sysconfig for things that are not setup by default, net new
echo 'CONSOLE_ENCODING="UTF-8"' >> /etc/sysconfig/console
echo 'CONSOLE_FONT="lat9w-16.psfu"' >> /etc/sysconfig/console
echo 'CONSOLE_SCREENMAP="trivial"' >> /etc/sysconfig/console
echo 'DEFAULT_TIMEZONE="Etc/UTC"' >> /etc/sysconfig/clock
echo 'HWCLOCK="-u"' >> /etc/sysconfig/clock
echo 'UTC=true' >> /etc/sysconfig/clock
echo '
# The YaST-internal identifier of the attached keyboard.
#
YAST_KEYBOARD="english-us,pc104"' >> /etc/sysconfig/keyboard
echo '# Support dynamic multinic configuration' >> /etc/sysconfig/network/config
echo 'NETCONFIG_MODULES_ORDER="cloud-netconfig dns-resolver dns-bind dns-dnsmasq nis ntp-runtime"' >> /etc/sysconfig/network/config

# Configuration outside of sysconfig
# Setup policy kit
[ -x /sbin/set_polkit_default_privs ] && /sbin/set_polkit_default_privs

# Disable password based login via ssh
sed -i 's/#ChallengeResponseAuthentication yes/ChallengeResponseAuthentication no/' /etc/ssh/sshd_config

# Remove the password for root
# Note the string matches the password set in the config file
sed -i 's/$1$wYJUgpM5$RXMMeASDc035eX.NbYWFl0/*/' /etc/shadow

# Do not use delta rpms in the cloud
sed -i 's/# download.use_deltarpm = true/download.use_deltarpm = false/' /etc/zypp/zypp.conf

# Allow root access on serial console
egrep -q '^ttyS0$' /etc/securetty || echo ttyS0 >> /etc/securetty

# Platform specific settings
# Need to allow modules from Enterprise Build Service
[ -f /etc/modprobe.d/unsupported-modules ] && sed -i -r -e 's/^(allow_unsupported_modules[[:space:]]*).*/\10/' /etc/modprobe.d/unsupported-modules
# Need keep alive traffic of Azure disconnects the connection rather quickly
sed -i 's/#ClientAliveInterval 0/ClientAliveInterval 180/' /etc/ssh/sshd_config
# Disable agent auto-update
sed -i -e 's/AutoUpdate.Enabled=y/AutoUpdate.Enabled=n/' /etc/waagent.conf
# Implement password policy
# Length: 6-72 characters long
# Contain any combination of 3 of the following:
#   - a lowercase character
#   - an uppercase character
#   - a number
#   - a special character
sed -i 's/pam_cracklib.so/pam_cracklib.so minlen=6 dcredit=1 ucredit=1 lcredit=1 ocredit=1 minclass=3/' /etc/pam.d/common-password-pc

# Allow forced root login on the serial console bsc#1080692
sed -i 's/sulogin;/sulogin --force;/' /usr/lib/systemd/system/emergency.service

# Avoid weird characters in YaST
echo "# yast in Public CLoud images fix" >> /etc/profile
echo "NCURSES_NO_UTF8_ACS=1" >> /etc/profile
echo "export NCURSES_NO_UTF8_ACS" >> /etc/profile

#======================================
# Activate/De-activeta services
#--------------------------------------
# Generic
suseInsertService boot.device-mapper
suseInsertService haveged
suseInsertService sshd
suseRemoveService acpid
suseRemoveService boot.efivars
suseRemoveService boot.lvm
suseRemoveService boot.md
suseRemoveService boot.multipath
suseRemoveService display-manager
suseRemoveService kbd
systemctl enable cloud-netconfig.timer
# Framework specific
suseInsertService waagent

#======================================
# Umount kernel filesystems
#--------------------------------------
baseCleanMount

exit 0
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