82 lines
2.0 KiB
Bash
82 lines
2.0 KiB
Bash
#!/sbin/sh
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# implement ordered VM start-up and shutdown on SmartOS | tamas@gerczei.eu
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# PREREQUISITE: 'vmadm update $UUID <<< "{\"set_tags\": {\"priority\": 0}}"' where 0 means 'OFF', the rest determines ascending and descending numerical order respectively
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. /lib/svc/share/smf_include.sh
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if [ -z "$SMF_FMRI" ]; then
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echo "this script can only be invoked by smf(5)"
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exit $SMF_EXIT_ERR_NOSMF
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fi
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ME=$(basename ${0%.sh})
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# start-up delay between VMs
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DELAY=30
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function log {
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# helper function to log arbitrary messages via syslog
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logger -p daemon.notice -t $ME $@
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}
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case $1 in
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start)
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# determine the order of VMs by boot priority
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ORDER=$(vmadm lookup -j -o uuid,tags | json -c 'this.tags.priority > 0' -a uuid tags.priority | sort -nk2 | cut -d " " -f1)
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log start-up order determined as: $ORDER
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# start guests
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for UUID in $ORDER
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do
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# invoke vmadm
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vmadm start $UUID 2> /dev/null
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if [ $? -eq 0 ]
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then
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# successful start, log and wait
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log $UUID managed to $1
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sleep $DELAY
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else
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# failed to start guest
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log $UUID failed to $1
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fi
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done
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;;
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stop)
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# determine the order of VMs by reverse boot priority
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ORDER=$(vmadm lookup -j -o uuid,tags state=running | json -a uuid tags.priority | sort -rnk2 | cut -d " " -f1)
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log shutdown order determined as: $ORDER
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# stop guests
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for UUID in $ORDER
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do
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# invoke vmadm
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vmadm stop $UUID 2> /dev/null
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if [ $? -eq 0 ]
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then
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# successful stop
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log $UUID managed to $1
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else
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# failed to stop guest
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log $UUID failed to $1
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fi
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done
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;;
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disarm)
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# set the 'autoboot' attribute to 'false' for every installed guest on order to prevent automatic start-up without this script
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zoneadm list -pi | while IFS=":" read ID UUID STATE remainder; do
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if [[ $STATE == "installed" ]];
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then
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zonecfg -z $UUID set autoboot=false
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fi
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done
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log disarmed: set autoboot=false on all zones
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;;
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*)
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exit $SMF_EXIT_ERR;
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esac
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exit $SMF_EXIT_OK
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