Store the built template on S3 for validation and create-stack

.buildkite/steps/launch.sh

@@ -103,11 +103,10 @@ echo "--- Building templates"
 make "mappings-for-${os}-${arch}-image" build/aws-stack.yml "IMAGE_ID=$image_id"
 
 echo "--- Validating templates"
-# 2021-11-25 KD: template larger than template-body supports, needs moving to s3
-# make validate
+make validate "BUCKET_PREFIX=$stack_name"
 
 echo "--- Creating stack ${stack_name}"
-make create-stack "STACK_NAME=$stack_name" "SERVICE_ROLE=$service_role"
+make create-stack "BUCKET_PREFIX=$stack_name" "STACK_NAME=$stack_name" "SERVICE_ROLE=$service_role"
 
 echo "+++ ⌛️ Waiting for update to complete"
 ./parfait watch-stack "${stack_name}"

Makefile

@@ -143,12 +143,13 @@ ifdef SERVICE_ROLE
  role_arn="--role-arn=$(SERVICE_ROLE)"
 endif
 
-create-stack: build/aws-stack.yml env-STACK_NAME
+create-stack: build/aws-stack.yml env-STACK_NAME env-BUILDKITE_AWS_STACK_BUCKET env-BUCKET_PREFIX
+ aws s3 cp --content-type 'text/yaml' --acl public-read build/aws-stack.yml "s3://$(BUILDKITE_AWS_STACK_BUCKET)/$(BUCKET_PREFIX)/aws-stack.yml"
  aws cloudformation create-stack \
  --output text \
  --stack-name $(STACK_NAME) \
  --disable-rollback \
- --template-body "file://$(PWD)/build/aws-stack.yml" \
+ --template-url "s3://$(BUILDKITE_AWS_STACK_BUCKET)/$(BUCKET_PREFIX)/aws-stack.yml" \
  --capabilities CAPABILITY_IAM CAPABILITY_NAMED_IAM CAPABILITY_AUTO_EXPAND \
  --parameters "$$(cat config.json)" \
  "$(role_arn)"
@@ -175,10 +176,11 @@ bump-agent-version:
  git add README.md packer/linux/scripts/install-buildkite-agent.sh packer/windows/scripts/install-buildkite-agent.ps1
  git commit -m "Bump buildkite-agent to v$(AGENT_VERSION)"
 
-validate: build/aws-stack.yml
+validate: build/aws-stack.yml env-BUILDKITE_AWS_STACK_BUCKET env-BUCKET_PREFIX
+ aws s3 cp --content-type 'text/yaml' --acl public-read build/aws-stack.yml "s3://$(BUILDKITE_AWS_STACK_BUCKET)/$(BUCKET_PREFIX)/aws-stack.yml"
  aws cloudformation validate-template \
  --output text \
- --template-body "file://$(PWD)/build/aws-stack.yml"
+ --template-url "s3://$(BUILDKITE_AWS_STACK_BUCKET)/$(BUCKET_PREFIX)/aws-stack.yml"
 
 generate-toc:
  docker run -it --rm -v "$(PWD):/app" node:slim bash \