Terraform Codepipeline Deploy in Different Region - amazon-web-services

Question

I'm trying to deploy my service in the region that is just newly available (Jakarta). But it looks like the Codepipeline is not available so I have to create the Codepipeline in the nearest region (Singapore) and deploy it to Jakarta region. It is also my first time setting up Codepipeline in Terraform, so I'm not sure if I do it right or not.
P.S. The default region of all these infrastructures is in "Jakarta" region. I will exclude the deploy part since the issue is showing up without it.
resource "aws_codepipeline" "pipeline" {
name = local.service_name
role_arn = var.codepipeline_role_arn
artifact_store {
type = "S3"
region = var.codepipeline_region
location = var.codepipeline_artifact_bucket_name
}
stage {
name = "Source"
action {
name = "Source"
category = "Source"
owner = "AWS"
provider = "CodeStarSourceConnection"
version = "1"
output_artifacts = ["SourceArtifact"]
region = var.codepipeline_region
configuration = {
ConnectionArn = var.codestar_connection
FullRepositoryId = "${var.team_name}/${local.repo_name}"
BranchName = local.repo_branch
OutputArtifactFormat = "CODEBUILD_CLONE_REF" // NOTE: Full clone
}
}
}
stage {
name = "Build"
action {
name = "Build"
category = "Build"
owner = "AWS"
provider = "CodeBuild"
version = "1"
input_artifacts = ["SourceArtifact"]
output_artifacts = ["BuildArtifact"]
run_order = 1
region = var.codepipeline_region
configuration = {
"ProjectName" = local.service_name
}
}
}
tags = {
Name = "${local.service_name}-pipeline"
Environment = local.env
}
}
Above is the Terraform configuration that I created, but it gives me an error like this:
│ Error: region cannot be set for a single-region CodePipeline
If I try to remove the region on the root block, the Terraform will try to access the default region which is Jakarta region (and it will fail since Codepipeline is not available in Jakarta).
│ Error: Error creating CodePipeline: RequestError: send request failed
│ caused by: Post "https://codepipeline.ap-southeast-3.amazonaws.com/": dial tcp: lookup codepipeline.ap-southeast-3.amazonaws.com on 103.86.96.100:53: no such host

Answer 1

You need to setup alias provider with different region. For exmaple:
provider "aws" {
alias = "singapore"
region = "ap-southeast-1"
}
Then you deploy your pipeline to that region using the alias:
resource "aws_codepipeline" "pipeline" {
provider = aws.singapore
name = local.service_name
role_arn = var.codepipeline_role_arn
# ...
}