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#!/bin/bash

################################################################################

# This file is to be run by root

# It is used to configure a new VM on first boot

#

# Source is controlled in the VIXcentos7LTS_VMcfg package

#

# This script is called from

#    /etc/gdm/Init/:0

#

################################################################################

# Log all output 

mkdir -p /root/.vix

exec 1>/root/.vix/vix.log 2>&1

echo Starting $*

mkdir -p /root/Desktop

HelpFile="/root/Desktop/configureVM Help.txt"

function createHelpText {

cat > "$HelpFile" <<HelpDoc

Initial Machine Setup

This process will setup the VM.

It will be performed once, but can be manually rerun via $0

This text file can be found at: "$HelpFile"

Use Information:

Root Password: maple01

Local User: vix

  Password: maple01

Machine Name:

This should be globally unique so as to avoid problems with IP address

assignment. The recommended name is based on:

  1) Your Desktop machine Name. ie AUPERAWS123

  2) The number of VMs that you already have created

ie: AUPERAWS123VM01

Configuration:

    Automount home drivers

    Intended for a Virtual Machine based in Perth attached to the Perth Unix

    home drives. Use outside of Perth may suffer performance delays

    Local Home

    Intended for a VM not based in Perth, but aware of the Perth VIX NIS. The

    machine will have a local home drive, but will use the Perth VIX NIS.

    A local home directory will be configured. The user will authenicate against

    the NIS, but use the local home drive.

    Stand Alone:

    Intended for a Virtual Machine that will not be attached to the Perth file

    system. This type of machine will require that the user set up a

    non-root user.

Package Server:

    This is the name of the build system package server. It will be used to:

        1) Provide the location of JATS

        2) Provide dpkg_archive

    Example: auperaarc01 [Perth Based Development]

             auperaarc02 [Pulse]

    It is expected that dpkg_archive will be found at:

        /net/PackageServerName/export/devl/dpkg_archive

Additional Notes:

    * Kedevelop has been installed. This is a GUI interface to GDB

HelpDoc

}

#

#   Examine user commandline.

#   Expect one of

#       -install    - Used by installer

#       -remove     - Used by installer

#       -auto       - Invoked by startup at boot

#                   - User invocation

#

startupMode=No

for ii in $*; do

    [ "$ii" = "-auto" ] && startupMode=

    [ "$ii" = "-install" ] && startupMode=install

    [ "$ii" = "-remove" ] && startupMode=remove

done

#

#   Self install and removal

#   Normally run from the installer

#

GdmBannerFile=/etc/dconf/db/gdm.d/01-banner-message

kdeScriptCfg=/.kde/share/config/configureVM

if [ "$startupMode" = "install" ] ; then

    ln -s $0 /root/Desktop/configureVM

    rm -f /root/.vix/config

    createHelpText

    rm -f $kdeScriptCfg

    exit 0

elif [ "$startupMode" = "remove" ] ; then

    rm -f /root/Desktop/configureVM*

    rm -rf /root/.vix

    rm -f $kdeScriptCfg

    rm -f $GdmBannerFile

    exit 0

fi

#

#   Non Manual: Only run once

#

if [ -z "$startupMode" -a -f /root/.vix/config ]; then

  #

  # Non Manual: After first time

  #

  # Display the OS Type

  #             Machine Name

  #             IP Address

  #

  # Allows users to determine the IP address to:

  #     Simplify ssh access

  #     Show when it does not have an IP address

  #

  # Note: Under Centos we can't pop up a dialog at this point as it will stall the logon

  #       process and prevent users from accessing the box via ssh

  #

  #       Under Centos we update the Greeter banner instead

  #

  IP=$(/sbin/ifconfig | grep "inet " | grep -v "127.0.0.1" | awk '{ print $2 }' )

  OS=$(hostnamectl | grep Operating | sed -e 's/.*: //')

  KERN=$(hostnamectl | grep Kernel| sed -e 's/.*: //')

  TEXT="Host Name: $(hostname)\\nOS: $OS\\nKernel: $KERN\\nIP Address: $IP"

  cat << EOF > $GdmBannerFile

[org/gnome/login-screen]

banner-message-enable=true

disable-user-list=true

banner-message-text='$TEXT'

EOF

  dconf update

#  text="

#OS Version: ${OS}

#Kernel: ${KERN}

#HostName: $(hostname)

#IP address: $ipaddress

#

#Continue to login"

#  # May create /.kde/share/config/configureVM ($kdeScriptCfg)

#  kdialog --msgbox "$text" --dontagain configureVM:noipaddressmsg

  exit

fi  

rm -f $kdeScriptCfg

#

#   Running full script

#   Perform full logging to another log file

mkdir -p /root/.vix

exec 1>/root/.vix/vix_full.log 2>&1

echo Starting $*

env

set -x

#

#   Create the Help Text

#   Place link to this script on the Desktop

#

[ -e /root/Desktop/configureVM ] || /root/Desktop/configureVM

createHelpText

#

# Extract information from the user

#

#

TITLE='First Time VM Configuration'

#

#   Display the Help Text

#

kdialog --title "$TITLE" --textbox "${HelpFile}" 800 800

#

#   Set defaults, before overiding with users last values

#

mname=$(cat /etc/hostname)

mode='Automount home drives'

pkgServer='auperaarc02'

[ -f /root/.vix/config.data ] && source /root/.vix/config.data

ok=false

prompt="Unique machine name\

        <pre>Suggested format: AUPERAWSxxxVMnn\

        <br>Where:\

        <br>   AUPERA - Site prefix\

        <br>   WSxxx  - Your Workstation ID\

        <br>   VM     - Indicated a VM\

        <br>   nn     - VM Instance\

        </pre>Machine Name:"

while ! $ok ; do

    [ -z "$mname" ] && mname=AUPERAWSxxxVMnn

    mname=$(kdialog --title "$TITLE" --inputbox "$prompt" "$mname")

    [[ $mname =~ ^[a-zA-Z][a-zA-Z0-9-]+$ ]] && ok=true

    [[ $mname =~ AUPERAWSx ]] && ok=false

    [[ $mname =~ VMnn ]] && ok=false

done

ok=false

prompt="<pre>Stand Alone VM:        No  NIS, Setup local user\

         <br>Local Home:            Use NIS, Setup local home\

         <br>Automount home drives: Use NIS, Mount Unix Home Drive\

        </pre>Select configuration:"

while ! $ok ; do

    umode=$(kdialog --title "$TITLE" --combobox "$prompt" \

            'Stand Alone VM' \

            'Local Home' \

            'Automount home drives' \

            --default "$mode"  )

    [ -n "$umode" ] && ok=true

done

mode="$umode"

ok=false

utext=""

prompt="The name of the build system package server\

        <br>Package Server:"

while ! $ok ; do

    [ -z "$utext" ] && utext="$pkgServer"

    utext=$(kdialog --title "$TITLE" --inputbox "$prompt" "$utext")

    [[ "$utext" =~ ^[a-zA-Z][a-zA-Z0-9_-]+$ ]] && ok=true

done

pkgServer="$utext"

erase=1

if [ -n "$startupMode" ]; then

    kdialog --title "$TITLE" --yesno \

        "This utility is being manually run.<br>\

        Do you want to force the script to be run on the next reboot"

    erase=$?

fi

#

#  Save config for next time

#

echo $mname

echo $mode

echo $pkgServer

mkdir -p /root/.vix

cat > /root/.vix/config.data <<hereData

mname="$mname"

mode="$mode"

pkgServer="$pkgServer"

hereData

################################################################################

#

#   Perform the initialisation

#

echo "--------------------------------"

echo "Data collected. Configure system"

# Extend the path

PATH="/sbin:$PATH"

# Machine-specific, so remove in case this system is going to be

# cloned.  These will be regenerated on the first boot.

if [ -z "$startupMode" ] ; then

    rm -f /etc/udev/rules.d/70-persistent-cd.rules

    rm -f /etc/udev/rules.d/70-persistent-net.rules

    # Potentially sensitive.

    rm -f /root/.ssh/known_hosts

    rm -f /root/.svn

fi

#

#   Set new machine name

#

echo $mname > /etc/hostname

hostname -b -F /etc/hostname

#

#   Set the required Mode

#

autoHome=false

perthNis=false

addUser=false

if [ "$mode" = "Stand Alone VM" ] ; then

    autoHome=false

    perthNis=false

    addUser=true

elif [ "$mode" = "Local Home" ] ; then

    autoHome=false

    perthNis=true

else

    autoHome=true

    perthNis=true

fi

#

#   Configure NIS

#

echo "Configure NIS"

if $perthNis; then

    echo "Enable yp binding"

    rm -f /usr/lib/systemd/system/ypbind.override

    for ii in passwd shadow group ; do

        sed -i /etc/$ii -e "/^+/d"

        echo >> /etc/$ii '+'

    done

    systemctl enable ypbind

    systemctl start ypbind

else

    echo "Disable yp binding"

    for ii in passwd shadow group; do

        sed -i /etc/$ii -e "/^+/d"

    done

    systemctl disable ypbind

fi

#

#   Configure auto mounting of Home Drives

#

echo "Configure Automounter"

VIXAUTOHOME=/etc/auto.master.d/vix.home.autofs

if $autoHome; then

    echo "Setup automount of /home"

    if [ -f ${VIXAUTOHOME}.disabled ] ; then

        mv ${VIXAUTOHOME}.disabled ${VIXAUTOHOME}

    fi

else

    echo "Stop automount of /home"

    if [ -f ${VIXAUTOHOME} ] ; then

        mv ${VIXAUTOHOME} ${VIXAUTOHOME}.disabled

    fi

fi

#

#   Stop auto mounter so that it will not interfere with the

#   creation of user home directories

#   

#   Note: This does not appear to stop the automounter

#         May not be an issue as we are about to reboot

systemctl stop autofs 

#

#   Create local user if need be

#   Note: There is no need to create a local home directory for local users

#         as Ubuntu appears to do this on the fly.

#

echo "Configure Local User"

if $addUser; then

    /usr/bin/python /usr/share/system-config-users/system-config-users.py

fi

#

#   Configure the package server

#

echo "Configure Package Server"

sed -i /etc/profile.d/jats.sh -e "s~^\(GBE_DPKG=/net\)/\([^/]*\)/\(.*\)~\1/$pkgServer/\3~"

#

#   Flag - configuration done

#   This should stop the auto script from running again

#

if [ -z "$startupMode" ]; then

    echo "Flag - don't run again"

    mkdir -p /root/.vix

    touch /root/.vix/config

fi

if [ "$erase" -eq "0" ] ; then

    echo "Erase config details. Force script to run on next reboot"

    rm -f /root/.vix/config

fi

#

#   Reboot the system

#   If manually invoked then give the user the option of aborting the boot

#

ktype=yesno

[ -z "$startupMode" ] && ktype=msgbox

kdialog --title "$TITLE" --$ktype "The system will now reboot in order for the changes to take effect"

if [ $? -ne 1 ]; then

    echo "Reboot the system"

    reboot --no-wall -f

    echo "Reboot failed. Command returned"

fi

echo "Script complete"