Expose loadbalancer IPv4 when Traefik disabled.

[geraldwuhoo]

Currently the code in output.tf returns null for load_balancer_public_ipv4 if Traefik is disabled. I can understand the reasoning, because without an ingress controller to provision an IP from the Hetzner LB, there is no LB IP to speak of. However, I'm disabling Traefik to install nginx-ingress instead. I'm sure many others disable Traefik to instead install their own preferred ingress controller.

Since there is no way for the Terraform module to detect whether or not a user will provision an ingress controller after Terraform provisioning, I think it makes sense to err on the side of caution, and return proper load_balancer_public_ipv4 value even when Traefik is disabled.

[mysticaltech]

Hello @geraldwuhoo, it makes sense! PRs welcome, that should be a quick fix.

@phaer FYI.

[mysticaltech]

Moving this to a discussion in the ideas section, @geraldwuhoo, If you decide to take this on, I will convert it back to an issue to properly close it and give proper attributions.