I have finally managed to develop a Terraform provider locally to add a feature we miss for a long time on Icinga.
Unfortunately, the Icinga provider doesn't seem to be maintained so I'll patch the one we use, from openHPI, and hope it'll get merged. If not, we'll probably create another fork.
- https://github.com/Icinga/terraform-provider-icinga2/
- https://github.com/openHPI/terraform-provider-icinga2
It's the other way around. The one from openHPI is not maintained while the official is. But the official misses the "zone" attribute to create hosts. And there is no downtime. So I have created and published a fork https://registry.terraform.io/providers/jouir/icinga2/latest/docs
I knew I needed to create my own version to fix the issues we had in the past but I didn't remember the details.
After a whole day of switching thousands of servers to my new provider, the issues came to life. When the API times out, the plan fails but the host is created. At the second run, Terraform tries to create the host because it doesn't exist in the state but Icinga returns a 500 Internal Server Error because the host already exists. The solution is to remove the host from Icinga then apply again.
I will not do this for the last 52 plans in error with more or less 100 servers. No. I don't know if it's idiomatic to Terraform but I don't care, I will run a GET before creation and create only if it doesn't exist. Same for deletion. This will ease the life of our team having to deal with the flacky API at some point.
I will contribute back to the upstream project of course. If it's refused, no worries, I'll keep my own version.
Julien Riou
