Problem with obtain ipv4 addresses for group of nodes

[krnworks]

Hello!

Occasionally, upon the initial run, I receive empty output for the IP-addresses of virtual machines. However, if I repeat the apply command, I get the expected lists.

output "ipv4_addresses" {
  value = {
    for vm_key, vm_value in proxmox_virtual_environment_vm.basic_vm:
    vm_key => flatten(vm_value.ipv4_addresses)
  }
}

Outputs:

ipv4_addresses = {
  "pve-1-1-12-0" = []
  "pve-1-1-12-1" = [
    "127.0.0.1",
    "10.0.200.35",
  ]
  "pve-1-1-13-0" = []
  "pve-1-1-13-1" = []
}

It appears that this behavior occurs because the output is retrieved before the virtual machines have acquired their IP addresses.

Is there a workaround for this issue or a way to introduce artificial delay to ensure that the output is retrieved after the virtual machines have acquired their IP addresses?

I use dhcp.

Best regards, Roman

[bpg]

Hi @krnwrks!

It won't be possible to reliably populate the VM IP addresses at the end of VM provisioning flow without using qemu guest agent.

This provider requires agent.enabled = true to populate ipv4_addresses,
ipv6_addresses and network_interface_names output attributes.

[krnworks]

The guest agent is enabled, you can see that in my output I received the address from 1 of nodes in the first try

[bpg]

Hm... The provider actually does wait for a non-localhost IP address 🤔

@krnwrks Could you pls. provide additional details about your environment, and perhaps output from your plan execution? A debug log would be ideal.

[bpg]

As a workaround you may try adding something like this to your VM config:

  provisioner "local-exec" {
    when    = create
    command = "sleep 5s"
  }

[bpg]

There is a good analysis on "wait for IP" behaviour in #668 (comment)

[bpg]

I'm going to close this issue as I haven't heard back from the author with additional details.

@krnworks, please feel free to reopen it if you need more support on this.