load-template

#!/bin/bash

SERVERS="living-room-router erin-room-router"
POOL="ssd"

URL="$1"
SNAPSHOT="$2"
RELEASE=`basename "$URL" | cut -f1 -d-`

if [ -z "$URL" ]; then
	echo "Must specify url"
	exit 1
fi

if [ -z "$SNAPSHOT" ]; then
	echo "Must specify snapshot name"
	exit 1
fi

echo Will create snapshot "$POOL/ubuntu-$RELEASE@$SNAPSHOT"
wget -O /tmp/ubuntu.img "$URL"

cat << EOF > /tmp/load-template.sh
#!/bin/bash
set -x

zfs create "$POOL/ubuntu-$RELEASE" -V 20GB 2>/dev/null >/dev/null
sleep 2
qemu-img convert -p -O raw /tmp/ubuntu.img "/dev/zvol/$POOL/ubuntu-$RELEASE"
zfs snapshot "$POOL/ubuntu-$RELEASE@$SNAPSHOT"
rm /tmp/ubuntu.img /tmp/load-template.sh
EOF

echo

for SERVER in $SERVERS; do
	echo Connecting to $SERVER...
	scp /tmp/ubuntu.img $SERVER:/tmp/ubuntu.img
	scp /tmp/load-template.sh $SERVER:/tmp/load-template.sh
	ssh -t $SERVER -- sudo bash /tmp/load-template.sh
done

rm /tmp/ubuntu.img /tmp/load-template.sh