Adding multi-arch support for the configure.sh script

This script is used by various tests to install and configure
containerd. However, right now it's hardcoded to only support x86
and not other architectures like arm. This change will now check the
architecture of the machine the script is running on and will pull
the correct artifacts accordingly from the correct artifact store
(GCS vs Github).

Signed-off-by: Nobel Barakat <nobelbarakat@google.com>

contrib/gce/configure.sh

@@ -126,8 +126,16 @@ else
 
   # TODO(random-liu): Put version into the metadata instead of
   # deciding it in cloud init. This may cause issue to reboot test.
+  if [ $(uname -m) == "aarch64" ]; then
+    version=$(curl -f --ipv4 --retry 6 --retry-delay 3 --silent --show-error \
+      -H "Accept: application/vnd.github.v3+json" \
+      "https://api.github.com/repos/containerd/containerd/releases/latest" \
+      | jq -r .tag_name \
+      | sed "s:v::g")
+  else
     version=$(curl -f --ipv4 --retry 6 --retry-delay 3 --silent --show-error \
       https://storage.googleapis.com/${deploy_path}/latest)
+  fi
 fi
 
 TARBALL_GCS_NAME="${pkg_prefix}-${version}.linux-amd64.tar.gz"
@@ -148,7 +156,12 @@ if [ -z "${version}" ]; then
     exit 1
   fi
 else
-  if is_preloaded "${TARBALL_GCS_NAME}" "${tar_sha1}"; then
+  if [ $(uname -m) == "aarch64" ]; then
+    curl -f --ipv4 -Lo "${TARBALL}" --connect-timeout 20 --max-time 300 --retry 6 --retry-delay 10 \
+	"https://github.com/containerd/containerd/releases/download/v${version}/cri-containerd-${version}-linux-arm64.tar.gz"
+    tar xvf "${TARBALL}"
+    rm -f "${TARBALL}"
+  elif is_preloaded "${TARBALL_GCS_NAME}" "${tar_sha1}"; then
     echo "${TARBALL_GCS_NAME} is preloaded"
   else
     # Download and untar the release tar ball.