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#!/bin/bash
SSH_KEY=mcp.rsa
SALT_MASTER=192.168.10.100
BASE_IMAGE=https://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img
declare -A NODES=( [cfg01]=4096 [ctl01]=6144 [ctl02]=6144 [ctl03]=6144 [gtw01]=2048 [cmp01]=2048 )
# get required packages
apt-get install -y mkisofs curl virtinst cpu-checker qemu-kvm
# generate ssh key
[ -f $SSH_KEY ] || ssh-keygen -f $SSH_KEY -N ''
# get base image
mkdir -p images
wget -nc $BASE_IMAGE
for node in "${!NODES[@]}"; do
# clean up existing nodes
if [ "$(virsh domstate $node 2>/dev/null)" == 'running' ]; then
virsh destroy $node
virsh undefine $node
fi
# create/prepare images
[ -f images/mcp_${node}.iso ] || ./create-config-drive.sh -k ${SSH_KEY}.pub -u user-data.sh -h ${node} images/mcp_${node}.iso
cp ${BASE_IMAGE/*\/} images/mcp_${node}.qcow2
qemu-img resize images/mcp_${node}.qcow2 100G
done
# create required networks
for net in pxe mgmt internal public; do
if virsh net-info $net >/dev/null 2>&1; then
virsh net-destroy ${net}
virsh net-undefine ${net}
fi
virsh net-define net_${net}.xml
virsh net-autostart ${net}
virsh net-start ${net}
done
# create vms with specified options
for node in "${!NODES[@]}"; do
virt-install --name ${node} --ram ${NODES[$node]} --vcpus=2 --cpu host --accelerate \
--network network:pxe,model=virtio \
--network network:mgmt,model=virtio \
--network network:internal,model=virtio \
--network network:public,model=virtio \
--disk path=$(pwd)/images/mcp_${node}.qcow2,format=qcow2,bus=virtio,cache=none,io=native \
--boot hd --vnc --console pty --autostart --noreboot \
--disk path=$(pwd)/images/mcp_${node}.iso,device=cdrom
done
# set static ip address for salt master node
virsh net-update pxe add ip-dhcp-host \
"<host mac='$(virsh domiflist cfg01 | awk '/pxe/ {print $5}')' name='cfg01' ip='$SALT_MASTER'/>" --live
# start vms
for node in "${!NODES[@]}"; do
virsh start ${node}
sleep $[RANDOM%5+1]
done
CONNECTION_ATTEMPTS=20
SLEEP=15
# refresh salt master host key
ssh-keygen -R $SALT_MASTER
# wait until ssh on Salt master is available
echo "Attempting to ssh to Salt master ..."
ATTEMPT=1
while (($ATTEMPT <= $CONNECTION_ATTEMPTS)); do
ssh -i ${SSH_KEY} ubuntu@$SALT_MASTER uptime
case $? in
(0) echo "${ATTEMPT}> Success"; break ;;
(*) echo "${ATTEMPT}/${CONNECTION_ATTEMPTS}> ssh server ain't ready yet, waiting for ${SLEEP} seconds ..." ;;
esac
sleep $SLEEP
ssh-keyscan -t ecdsa $SALT_MASTER >> ~/.ssh/known_hosts
((ATTEMPT+=1))
done
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