devstack-101/Exercise 5 - userdata at master · UTSA-ICS/devstack-101 · GitHub

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# Create the user-data script
cat > ~/user-data.txt <<EOF
#!/bin/sh
echo "Hello World.  The time is now $(date -R)!" | tee /home/cirros//output.txt
EOF

# Create a new instance with the user-data
openstack server create --image CirrOS --flavor m1.tiny --key_name test --user_data ~/user-data.txt MY_USER_DATA_VM


openstack server list

> /home/stack/.ssh/known_hosts

ipaddress=... # Get IP address from nova list
ssh -i test.pem cirros@$ipaddress

cat output.txt

curl http://169.254.169.254/

curl http://169.254.169.254/latest

curl http://169.254.169.254/latest/user-data

exit

# Nova-network configures iptables to NAT port 80 of 169.254.169.254 to the $my-ip
sudo iptables -L -n -t nat | grep 169
# my_ip address is specified in /etc/nova/nova.conf
cat /etc/nova/nova.conf | grep my_ip

# meta-data api is running on the api server
cat /etc/nova/nova.conf | grep enabled_apis

openstack server delete MY_USER_DATA_VM