isomount

#!/bin/bash
#
# $Id: isomount 113 2022-07-21 18:43:42Z HMBJOrth $
# (c) 2022 Juergen Orth, Fujitsu
#
# Script for booting server with remote media ISO
# Server should be shut down before!
#
# Be careful: This is a PROTOTYPE!!!
#

# read default params from CFG-File
[ -r ${0}.cfg ] && . ${0}.cfg || { echo "No Configfile!"; exit 1; }

##############################################################################
# Don't change lines below!
##############################################################################
Proto=https
RedfishBase=redfish/v1
CurlOptions="-k -i --silent --noproxy $iRMC"
LOGFILE=/tmp/${0##*/}-${iRMC}.log

debug() {
        if [ "$DEBUG" ]
        then
                [ "$1" ] &&  { debugtimestamp $* >> $LOGFILE; } || tee -a $LOGFILE
        else
                [ "$1" ] || cat
        fi
}

timestamp() {
	date '+%Y-%m-%d %H:%M:%S ---'
}

debugtimestamp() {
	echo
	echo "##########################################"
	echo $(timestamp) $*
}

# Create JSON params from URI 
MountParams() {	# URI
	IsoUri="$1"
	ShareType=${IsoUri%%:*}
	ShareType=${ShareType^^}
	IsoUri=${IsoUri#*://}
	if  [[ $IsoUri =~ .*@.* ]]
	then
		Cred=${IsoUri%@*}
		IsoUri=${IsoUri#*@}
		if [[ $Cred =~ .*\;.* ]] 
		then
			UserDomain=${Cred%;*}
			Cred=${Cred#*;}
		fi
		UserName=${Cred%:*}
		Password=${Cred#*:}
	fi
	Server=${IsoUri%%/*}
	IsoUri=${IsoUri#*/}
	[[ $IsoUri =~ .*/.* ]] && ShareName=${IsoUri%/*}
	ImageName=${IsoUri##*/}

	echo "{"
	echo '	"FTSVirtualMediaAction": "ConnectCD",'
	for p in Server UserName Password UserDomain ShareType ShareName ImageName
	do
		if [ "$(eval echo \${$p})" ]
		then
			echo -ne "	"
			eval echo -n \\\"$p\\\": \\\"\${$p}\\\"
			[ "$p" = ImageName ] && echo || echo ","	
		fi
	done
	echo "}"
}

# Check PowerState of Server
ServerPoweredOn() {
	cmd="curl $Proto://$iRMC/$RedfishBase/Chassis/0 \
        -X GET -u $User:$Pw $CurlOptions"
	debug ServerPoweredOn: $cmd
	State=$($cmd |\
	  debug |\
	  awk '/^{/ { flag=1 } { if (flag) print }' | jq -r '.PowerState')
	[ "$State" = "Off" ] && return 1 || return 0	
}

# Check if remote media can be mounted
CheckRmSlots() {
	cmd="curl $Proto://$iRMC/$RedfishBase/Systems/0/Oem/ts_fujitsu/VirtualMedia \
        -X GET -u $User:$Pw $CurlOptions"
	debug CheckRmSlots: $cmd
	$cmd |\
	  debug |\
	  awk '/^{/ { flag=1 } { if (flag) print }' | jq '.CDImage.NumberOfFreeDevices'
}

# Mount given ISO as remote media
MountISO() { # ISOURI
	Uri=$1
        cmd="curl $Proto://$iRMC/$RedfishBase/Systems/0/Actions/Oem/FTSComputerSystem.VirtualMedia \
		-H 'Accept: application/json' \
		-H 'Content-type: application/json' \
		-X POST -u $User:$Pw $CurlOptions -d "$(MountParams $Uri)"" 
	debug MountIso: $cmd
	curl $Proto://$iRMC/$RedfishBase/Systems/0/Actions/Oem/FTSComputerSystem.VirtualMedia \
                -H 'Accept: application/json' \
                -H 'Content-type: application/json' \
                -X POST -u $User:$Pw $CurlOptions -d "$(MountParams $Uri)" | debug
}

# Unmount remote media
UnMountISO() {
        cmd="curl $Proto://$iRMC/$RedfishBase/Systems/0/Actions/Oem/FTSComputerSystem.VirtualMedia \
                -H 'Accept: application/json' \
                -H 'Content-type: application/json' \
                -X POST -u $User:$Pw $CurlOptions -d '{"FTSVirtualMediaAction": "DisconnectCD"}'"
	debug UnMountISO: $cmd
        curl $Proto://$iRMC/$RedfishBase/Systems/0/Actions/Oem/FTSComputerSystem.VirtualMedia \
                -H 'Accept: application/json' \
                -H 'Content-type: application/json' \
                -X POST -u $User:$Pw $CurlOptions -d '{"FTSVirtualMediaAction": "DisconnectCD"}' | debug
}

# Read current boot options
GetBoot() {
        cmd="curl $Proto://$iRMC/$RedfishBase/Systems/0/Oem/ts_fujitsu/BootConfig \
                -H 'Accept: application/json' \
                -H 'Content-type: application/json' \
                -X GET -u $User:$Pw $CurlOptions "
	debug GetBoot: $cmd
        curl $Proto://$iRMC/$RedfishBase/Systems/0/Oem/ts_fujitsu/BootConfig \
                -H 'Accept: application/json' \
                -H 'Content-type: application/json' \
                -X GET -u $User:$Pw $CurlOptions | debug
}

# Set boot options to CD for one shot
SetBoot() {
        cmd="curl $Proto://$iRMC/$RedfishBase/Systems/0/Oem/ts_fujitsu/BootConfig \
                -H 'Accept: application/json' \
                -H 'Content-type: application/json' \
		-H "If-Match":$(GetBoot|awk -F\" '/@odata.etag/ {print $(NF-1)}') \
                -X PATCH -u $User:$Pw $CurlOptions \
		-d '{ "BootDevice": "Cd", "NextBootOnlyEnabled": true }'"
	debug SetBoot: $cmd
        curl $Proto://$iRMC/$RedfishBase/Systems/0/Oem/ts_fujitsu/BootConfig \
                -H 'Accept: application/json' \
                -H 'Content-type: application/json' \
		-H "If-Match":$(GetBoot|awk -F\" '/@odata.etag/ {print $(NF-1)}') \
                -X PATCH -u $User:$Pw $CurlOptions \
		-d '{ "BootDevice": "Cd", "NextBootOnlyEnabled": true }' | debug
}

# Power server on
PowerOnServer() {
        cmd="curl $Proto://$iRMC/$RedfishBase/Systems/0/Actions/Oem/FTSComputerSystem.Reset \
                -H 'Accept: application/json' \
                -H 'Content-type: application/json' \
                -X POST -u $User:$Pw $CurlOptions -d '{"FTSResetType": "PowerOn" }'"
	debug ResetServer: $cmd
        curl $Proto://$iRMC/$RedfishBase/Systems/0/Actions/Oem/FTSComputerSystem.Reset \
                -H 'Accept: application/json' \
                -H 'Content-type: application/json' \
                -X POST -u $User:$Pw $CurlOptions -d '{"FTSResetType": "PowerOn" }' | debug
}

# For debugging
# echo $Uri; MountParams $Uri; exit

##############################################################################
# Main program
##############################################################################

if [ "$DEBUG" ] 
then
	echo "$(timestamp) Info: Debug mode enabled. "
	printf "                        %s\n" Logfile=$LOGFILE
	printf "                        %s\n" iRMC=$iRMC User=$User
	printf "                        %s\n" URI=$Uri
fi

type jq >/dev/null 2>&1 || { echo "Tool 'jq' is needed for this script!"; exit 2; }

echo -n "$(timestamp) Checking Powerstate ... "
if ServerPoweredOn 
then
	echo Server is powered on or not reachable.
	echo Please ensure to power off server before running this script.
	echo Exiting
	exit 3
else
	echo "OK (off)"
fi

# Mount ISO as remote media
if [ "0$(CheckRmSlots)" -gt 0 ]
then	
	echo -n "$(timestamp) Trying to mount $Uri ... "
	MountISO $Uri | grep -q '^HTTP.*204' && echo successful || \
		{ echo "failed! Exiting"; exit 4; }
else
	echo "$(timestamp) Remote media already mounted"
	exit 5
fi

# Set CD as next boot device (once)
echo -n "$(timestamp) Set boot device to ISO ... "
SetBoot | grep -q '^HTTP.*200' && echo "successful" || echo failed

# Power on server and let the update run
echo "$(timestamp) Powering on server ..."
PowerOnServer

# When finished dismount ISO
echo -n "Wait until update has finished and OS is up and running to unmount ISO image. Then press ENTER ... "
read taste
echo -n "$(timestamp) Unmount ISO ... "
UnMountISO | grep -q '^HTTP.*204' && echo "successful" || echo failed