Cannot set a fixed IP for Floating IP

[Chris Jefferies]

Here's how I'd like to define my floating ip:

# the jump host has a floating IP and association --------------------
resource "openstack_networking_floatingip_v2" "floatip_1" {
  pool      = "EXT_Corp"
  fixed_ip  = "10.0.2.134"
  tenant_id = "${var.tenantId}"
}

But it always complains when I add the fixed IP:

* openstack_networking_floatingip_v2.floatip_1: Error allocating floating IP: Invalid request due to incorrect syntax or missing required parameters.

If I comment out the fixed_ip line, it seems to work, but it allocates an IP from the IP range of the pool network.

Settings for EXT_Corp network:

IP version: IPv4
CIDR 10.0.2.0/24
IP allocation pool
Start 10.0.2.56  - End 10.0.2.58
Start 10.0.2.130 - End 10.0.2.146
Start 10.0.2.160 - End 10.0.2.169
Gateway IP - 10.0.2.1
DHCP Enable Yes

What am I doing wrong?

Thanks,
Chris.

[Rob Coward]

Hi Chris,

I think that you mis-understand the point of a floating IP address. It will allocate an address on your ‘external’ network from the pool specified. The fixed_ip property is referring to the ‘internal’ IP address which associated to a port attached to an instance. According to the documentation at 

https://www.terraform.io/docs/providers/openstack/r/networking_floatingip_v2.html you should only need to specify the fixed_ip attribute if you are also specifying port_id, and that port has multiple addresses assigned to it.

Hope that helps.

Regards,

Rob

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[Chris Jefferies]

Yes,

It clarifies how fixed_ip attribute is used in openstack_networking_floatingip_v2.

Is there a way to create a static IP that I could use from the pool?

Thank you,

Chris.

[Joe Topjian]

Hi Chris,

Do you mean you want to tell OpenStack which floating IP from the pool to use? If so, that's not possible with the OpenStack Terraform provider and I'm not sure if it's possible with the OpenStack tools directly. When you request a floating IP, you get a random floating IP from the external pool.

Thanks,

Joe

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[Chris Jefferies]

OK.  I think you're right.  Yes, I wanted to have a consistent IP I could define.  Thanks for confirming.