From 697a30ac44674ea7c5d678e31aa5cc9a513afe64 Mon Sep 17 00:00:00 2001
From: Yecheng Fu <cofyc.jackson@gmail.com>
Date: Fri, 6 Dec 2019 15:09:20 +0800
Subject: [PATCH] curl retry to make it stable (#1297)

---
 hack/lib.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hack/lib.sh b/hack/lib.sh
index 3dcbeaeb07e..c5bde3c2454 100644
--- a/hack/lib.sh
+++ b/hack/lib.sh
@@ -66,7 +66,7 @@ function hack::ensure_kubectl() {
     echo "Installing kubectl v$KUBECTL_VERSION..."
     tmpfile=$(mktemp)
     trap "test -f $tmpfile && rm $tmpfile" RETURN
-    curl -Lo $tmpfile https://storage.googleapis.com/kubernetes-release/release/v${KUBECTL_VERSION}/bin/${OS}/${ARCH}/kubectl
+    curl --retry 10 -L -o $tmpfile https://storage.googleapis.com/kubernetes-release/release/v${KUBECTL_VERSION}/bin/${OS}/${ARCH}/kubectl
     mv $tmpfile $KUBECTL_BIN
     chmod +x $KUBECTL_BIN
 }
@@ -85,7 +85,7 @@ function hack::ensure_helm() {
         return 0
     fi
     local HELM_URL=http://storage.googleapis.com/kubernetes-helm/helm-v${HELM_VERSION}-${OS}-${ARCH}.tar.gz
-    curl -s "$HELM_URL" | tar --strip-components 1 -C $OUTPUT_BIN -zxf - ${OS}-${ARCH}/helm
+    curl --retry 10 -L -s "$HELM_URL" | tar --strip-components 1 -C $OUTPUT_BIN -zxf - ${OS}-${ARCH}/helm
 }
 
 function hack::verify_kind() {
@@ -103,7 +103,7 @@ function hack::ensure_kind() {
     echo "Installing kind v$KIND_VERSION..."
     tmpfile=$(mktemp)
     trap "test -f $tmpfile && rm $tmpfile" RETURN
-    curl -Lo $tmpfile https://github.com/kubernetes-sigs/kind/releases/download/v${KIND_VERSION}/kind-$(uname)-amd64
+    curl --retry 10 -L -o $tmpfile https://github.com/kubernetes-sigs/kind/releases/download/v${KIND_VERSION}/kind-$(uname)-amd64
     mv $tmpfile $KIND_BIN
     chmod +x $KIND_BIN
 }