Update the EUSC AWS roles and bucket names in publish.yml (#160)

* Update the EUSC AWS roles and bucket names in publish.yml

This moves the AMI publication for AWS EUSC to a new AWS account exclusively dedicated to publishing AMIs.

* Update IAM role ARN in publish.yml

* Correct AWS account ID for European Sovereign Cloud AMIs

Updated the AWS account ID for EUSC AMIs in the README.

Author: grahamc

.github/workflows/publish.yml

@@ -71,9 +71,9 @@ jobs:
           - role: arn:aws-us-gov:iam::579351485434:role/upload-ami
             region: us-gov-west-1
             bucket: detsys-nixos-images-20260303190747195900000001
-          - role: arn:aws-eusc:iam::111921064076:role/upload-ami
+          - role: arn:aws-eusc:iam::129194717446:role/upload-ami
             region: eusc-de-east-1
-            bucket: detsys-nixos-images-20260304164532954800000001
+            bucket: detsys-nixos-images-20260409030044091900000001
 
     steps:
       - uses: actions/checkout@v4
@@ -168,7 +168,7 @@ jobs:
             region: us-east-2
           - role: arn:aws-us-gov:iam::579351485434:role/upload-ami
             region: us-gov-west-1
-          - role: arn:aws-eusc:iam::111921064076:role/upload-ami
+          - role: arn:aws-eusc:iam::129194717446:role/upload-ami
             region: eusc-de-east-1
 
     steps:

README.md

@@ -107,13 +107,17 @@ data "aws_ami" "detsys_nixos" {
 > [!NOTE]
 > The Terraform configuration below is compatible with [OpenTofu] as well.
 
+> [!NOTE]
+> We previously published EUSC AMIs to the AWS account `111921064076`.
+> The correct AWS account for the European Sovereign Cloud AMIs is `129194717446` as of 2026-04-08.
+
 You can use our official AMI for NixOS in a [Terraform] configuration like this:
 
 ```hcl
 data "aws_ami" "detsys_nixos" {
   most_recent = true
 
-  owners      = [ "111921064076" ]
+  owners      = [ "129194717446" ]
 
   filter {
     name   = "name"