perf: parallelize kube-proxy pulls

Azure · Apr 22, 2024 · 28b3f14 · 28b3f14
1 parent 5df7547
commit 28b3f14
Showing 1 changed file with 11 additions and 2 deletions.
diff --git a/vhdbuilder/packer/install-dependencies.sh b/vhdbuilder/packer/install-dependencies.sh
@@ -449,11 +449,20 @@ rm -r /var/log/azure/Microsoft.Azure.Extensions.CustomScript || exit 1
 
 KUBE_PROXY_IMAGE_VERSIONS=$(jq -r '.containerdKubeProxyImages.ContainerImages[0].multiArchVersions[]' <"$THIS_DIR/kube-proxy-images.json")
 
+declare -a kubeProxyPids=()
+
+for KUBE_PROXY_IMAGE_VERSION in ${KUBE_PROXY_IMAGE_VERSIONS}; do
+  # use kube-proxy as well
+  CONTAINER_IMAGE="mcr.microsoft.com/oss/kubernetes/kube-proxy:v${KUBE_PROXY_IMAGE_VERSION}"
+  pullContainerImage ${cliTool} ${CONTAINER_IMAGE} &
+  kubeProxyPids+=($!)
+done
+wait ${kubeProxyPids[@]} # Wait for all background processes to finish
+
 for KUBE_PROXY_IMAGE_VERSION in ${KUBE_PROXY_IMAGE_VERSIONS}; do
   # use kube-proxy as well
   CONTAINER_IMAGE="mcr.microsoft.com/oss/kubernetes/kube-proxy:v${KUBE_PROXY_IMAGE_VERSION}"
-  pullContainerImage ${cliTool} ${CONTAINER_IMAGE}
-  ctr --namespace k8s.io run --rm ${CONTAINER_IMAGE} checkTask /bin/sh -c "iptables --version" | grep -v nf_tables && echo "kube-proxy contains no nf_tables"
+  ctr --namespace k8s.io run --rm ${CONTAINER_IMAGE} checkTask /bin/sh -c "iptables --version" | grep -v nf_tables && echo "kube-proxy contains     no nf_tables" 
 
   # shellcheck disable=SC2181
   echo "  - ${CONTAINER_IMAGE}" >>${VHD_LOGS_FILEPATH}