Some IPAM and AUTH driver for OpenNebula Developed for @leboncoin

apt-get install python-pip

su - oneadmin

# Put the driver in the right directory.
# IPAM : ~/remotes/ipam/
# IPAM HOOK : ~/remotes/hooks/ft/
# AUTH : ~/remotes/auth/
# The owner should be oneadmin:oneadmin

cd ~/remotes/<driver_type>/<driver_name>/

# Install python libs
sudo pip install -r requirements.txt

# Enable it in opennebula
# Display the loaded drivers (Ex: ipam)
ps aux | grep one_ipam

Edit the /etc/one/oned.conf to enable the new driver

...
IPAM_MAD = [
    EXECUTABLE = "one_ipam",
    ARGUMENTS  = "-t 1 -i dummy,<driver_name>"
]
...
AUTH_MAD = [
    EXECUTABLE = "one_auth_mad",
    AUTHN = "ssh,x509,ldap,server_cipher,server_x509,<driver_name>"
]
...
VM_HOOK = [
   name      = "hook_powerdns",
   on        = "CREATE",
   command   = "/var/lib/one/remotes/hooks/ft/hook_powerdns.py",
   arguments = "$TEMPLATE" ]

# Restart opennebula
sudo systemctl restart opennebula.service

# Display the loaded drivers (Ex: ipam)
ps aux | grep one_ipam

You need to create a new Address Range in a Virtual Network.

The IPAM works in two steps :

• The instance is created, Opennebula is asking a new IP to the IPAM driver powerdns
  • The driver doesn't know the final name of the instance, it creates an A entry in the DNS relative to the encoded IP
• When the instance is in the state CREATE, it triggers the hook_powerdns which is updating the A entry in the DNS (replacing the encoded IP value to the final name)

To active this auth driver by default, add this line into /etc/one/oned.conf :

...
DEFAULT_AUTH = "<driver_name>"
...