Refactored code and added method to get supported version from build-…

…toolong repo

generatebundlefile/hack/update_bundles.sh

@@ -33,16 +33,14 @@ function get_latest_version() {
 
   # For cluster autoscaler filter tag based on k8s version (1.28,1.29,etc)
   if [ "$repo" = "cluster-autoscaler/charts/cluster-autoscaler" ]; then
-    output=$(echo $json_output | jq -r --arg kv "1.$k8s_version" '
-    .imageDetails
-    | map(select(.imageTags | length > 0))
-    | map(select(.imageTags | map(test($kv)) | any))
-    | sort_by(.imagePushedAt)
-    | last
-    | .imageTags')
+    kube_version="1.$k8s_version"
   # For metrics-server filter tag based on k8s version (1-28,1-29,etc)
   elif [ "$repo" = "metrics-server/charts/metrics-server" ]; then
-    output=$(echo $json_output | jq -r --arg kv "1-$k8s_version" '
+    kube_version="1-$k8s_version"
+  fi
+
+  if [ -n "${kube_version:-}" ]; then
+    output=$(echo $json_output | jq -r --arg kv "$kube_version" '
     .imageDetails
     | map(select(.imageTags | length > 0))
     | map(select(.imageTags | map(test($kv)) | any))
@@ -109,6 +107,18 @@ function update_bundle() {
   done
 }
 
+# Function to get supported k8s versions for EKS-A
+function get_supported_versions() {
+  local versions
+  versions=$(curl -s https://raw.githubusercontent.com/aws/eks-anywhere-build-tooling/main/release/SUPPORTED_RELEASE_BRANCHES |
+    sed 's/1-//' |
+    sort -V)
+
+  # Get latest version and remove tags with helm
+  local supported_versions=$(printf "%s\n" "${versions[@]}")
+  echo $supported_versions
+}
+
 function main() {
   local environment=""
   # Parse command line options
@@ -139,7 +149,7 @@ function main() {
   check_requirements
 
   # Generate bundle files for Kubernetes versions 1.27 to 1.31 for given environment
-  for version in {27..31}; do
+  for version in $(get_supported_versions); do
     update_bundle "$version" "$environment"
   done