Support for building and testing al2023 images (optionally)

Signed-off-by: Davanum Srinivas <[email protected]>

hack/build-ami.sh

@@ -37,6 +37,11 @@ KUBE_DATE=$(date -u +'%Y-%m-%d')
 pushd "$(go env GOPATH)/src/github.com/awslabs/amazon-eks-ami" >/dev/null
   sed -i 's/amazon-eks/provider-aws-test-infra/' eks-worker-al2-variables.json
   sed -i 's/us-west-2/us-east-1/' eks-worker-al2-variables.json
+  if [[ ${BUILD_EKS_AMI_OS:-""} == "al2023" ]]; then
+    make transform-al2-to-al2023
+    export PACKER_DEFAULT_VARIABLE_FILE=eks-worker-al2023-variables.json
+    export PACKER_TEMPLATE_FILE=eks-worker-al2023.json
+  fi
   make k8s kubernetes_version=${KUBE_VERSION} kubernetes_build_date=${KUBE_DATE} pull_cni_from_github=true
 # shellcheck disable=SC2164
 popd

hack/make-rules/test-e2e-node.sh

@@ -24,7 +24,11 @@ TEST_INFRA_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd -P)"
 
 build_eks_ami=${BUILD_EKS_AMI:-"false"}
 if [[ ${build_eks_ami} != "false" ]]; then
-  ami_id=$(aws ec2 describe-images --region=us-east-1 --filters Name=name,Values=amazon-eks-node-${KUBE_MINOR_VERSION}-v${TODAYS_DATE}  --query 'Images[*].[ImageId]' --output text)
+  if [[ ${BUILD_EKS_AMI_OS:-""} == "al2023" ]]; then
+    ami_id=$(aws ec2 describe-images --region=us-east-1 --filters Name=name,Values=amazon-eks-node-al2023-${KUBE_MINOR_VERSION}-v${TODAYS_DATE}  --query 'Images[*].[ImageId]' --output text)
+  else
+    ami_id=$(aws ec2 describe-images --region=us-east-1 --filters Name=name,Values=amazon-eks-node-${KUBE_MINOR_VERSION}-v${TODAYS_DATE}  --query 'Images[*].[ImageId]' --output text)
+  fi
   if [ -z "${ami_id}" ] ; then
     ${TEST_INFRA_ROOT}/hack/build-ami.sh
     ami_id=$(jq -r ".builds[].artifact_id" "$(go env GOPATH)/src/github.com/awslabs/amazon-eks-ami/manifest.json" | cut -f 2 -d ':')