user_data cloud-init key does not appear to support base64 encoded gzipped payload

[mikroskeem]

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Terraform Version

Terraform v1.2.9
on darwin_arm64
+ provider registry.terraform.io/hashicorp/cloudinit v2.2.0
+ provider registry.terraform.io/scaleway/scaleway v2.4.0

Affected Resource(s)

• https://registry.terraform.io/providers/scaleway/scaleway/2.4.0

Terraform Configuration Files

terraform {
  required_version = ">= 1.0"

  required_providers {
    cloudinit = {
      source = "hashicorp/cloudinit"
    }
  }
}

data "cloudinit_config" "config" {
  gzip          = true
  base64_encode = true

  part {
    filename     = "base-cloud-config.yml"
    content_type = "text/cloud-config"
    content = <<EOF
      #cloud-config
      system_info:
        default_user:
          name: "testing"
    EOF
  }
}

resource "scaleway_instance_user_data" "user_data" {
  server_id = ...
  key       = "cloud-init"
  value     = data.config.config.rendered
}

Debug Output

To be done - need to strip out sensitive information first.

Panic Output

N/A

Expected Behavior

Given base64-d and gzipped cloud-init configuration to be applied properly.

Actual Behavior

cloud-init configuration does not apply to the machine.

If I set gzip = false in cloud_init data resource, then it starts working. While this is not an issue with this particular example I am showing above, then this becomes a problem with larger multi-part configurations I actually want to deploy in production.

Steps to Reproduce

0. Declare a VM using Terraform - left out from the example for now.
1. terraform apply

Important Factoids

• Same happens when base64 & gzipped payload is copied to Scaleway UI - so it doesn't appear to be a problem with the Terraform provider itself?

References

N/A

[Codelax]

Hi, thanks you for reporting, I will report it

[Codelax]

But please note that this is effectively not an issue with our provider but a missing feature in instance api. I've reported it to the relevant team, but I cannot guarantee any ETA.

[mikroskeem]

Hi, has there been any changes to the cloud-init support recently? It appears that uncompressed base64 encoded multi-part cloud-init configuration stopped working as well today.

[mikroskeem]

Now when I pass multipart data raw without base64, then it starts working.

[Codelax]

It should not have been working with base64, you can use raw while waiting for instance product to add this functionality to its cloudinit datasource. There has been no changes recently, cloudinit datasource is opensource and you can look it up on cloudinit repo to find recent changes. Update maybe slow to arrive as updating it on cloudinit repo will take a while to release and be integrated in latest linux distributions. I close this issue as this is not an issue with terraform provider