add example to use a public parameter

Author: npalm

examples/multi-runner/main.tf

@@ -1,7 +1,16 @@
+data "aws_ssm_parameter" "al2023_arm" {
+  name = "/aws/service/ami-amazon-linux-latest/al2023-ami-kernel-6.1-x86_64"
+}
+
 locals {
   environment = var.environment != null ? var.environment : "multi-runner"
   aws_region  = var.aws_region
 
+  # create map only with amazon linux 2023 x64 ami id
+  ssm_ami_ids = {
+    "linux-x64" = data.aws_ssm_parameter.al2023_arm.arn
+  }
+
   # Load runner configurations from Yaml files
   multi_runner_config_files = {
     for c in fileset("${path.module}/templates/runner-configs", "*.yaml") :
@@ -19,6 +28,7 @@ locals {
           {
             subnet_ids = lookup(v.runner_config, "subnet_ids", null) != null ? [module.base.vpc.private_subnets[0]] : null
             vpc_id     = lookup(v.runner_config, "vpc_id", null) != null ? module.base.vpc.vpc_id : null
+            ami_id_ssm_parameter_arn = lookup(local.ssm_ami_ids, k, null) != null ? local.ssm_ami_ids[k] : null
           }
         )
       }

examples/multi-runner/templates/runner-configs/linux-x64.yaml

@@ -14,6 +14,7 @@ runner_config:
   instance_types:
     - m5ad.large
     - m5a.large
+  ami_id_ssm_parameter_arn: ${ami_id_ssm_parameter_arn}
   runners_maximum_count: 1
   enable_ephemeral_runners: true
   enable_on_demand_failover_for_errors: ['InsufficientInstanceCapacity']