output IPs of servers with openstack provider

[vincent.g...@gmail.com]

Hi all,

I would like to output the private IPs (not floating) of instances created through a unique resource with count = 3.

resource "openstack_compute_instance_v2" "node" {
  count = "${var.node_count}"
  name = "${var.cluster_name}_node"
  region = "${var.region}"
  flavor_name = "${var.node_flavor_name}"
  image_id= "${data.openstack_images_image_v2.node_image.id}"
  key_pair = "${openstack_compute_keypair_v2.keypair.name}"
  security_groups = [ "${openstack_networking_secgroup_v2.node_secgroup.name}" ]
  network = {
    uuid = "${openstack_networking_network_v2.node_network.id}"
  }
}

output "node_private_address" {
  value = "${openstack_compute_instance_v2.node.network.fixed_ip_v4}"
}

But it doesn't output anything

If I put this, nothing is output because I didn't assign any floating IP

output "node_private_address" {
  value = "${openstack_compute_instance_v2.node.access_ip_v4.}"
}

Do you have any trick to get the private IPs from a group of server ?

BR

[Joe Topjian]

Hello,

Since an OpenStack instance can take one or more networks, it is indexed, so you have to specify the network's index in order to see its attributes. In this case, the first network has an index of 0:

openstack_compute_instance_v2.node.network.0.fixed_ip_v4

You can see the full list of attributes and their indexes by doing "terraform show" after a deployment.

Hope that helps,

Joe

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[vincent.g...@gmail.com]

Tx !

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[vincent.g...@gmail.com]

And is there any way to get the list of IPs for a group without knowing the number of servers ? I mean I have to precise all the index of node resource, one in each output so I need to add output when scaling the number of node...

[Joe Topjian]

This should be possible to do for outputs, unless I'm mistaken. Check the Terraform docs for count and element (any other related functions that take an index):

https://www.terraform.io/docs/configuration/interpolation.html

and try to apply that to an output. 

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