release: sync alpha bincache assets to s3 bucket

Signed-off-by: Mathieu Tortuyaux <[email protected]>

Author: tormath1

ci-automation/release.sh

@@ -157,6 +157,35 @@ function _inside_mantle() {
   )
 }
 
+# _install_rclones pulls the latest version
+# of 'rclone'
+function _install_rclone() {
+    pushd $(mktemp --directory)
+
+    curl --fail --silent --location --show-error --remote-name \
+        https://downloads.rclone.org/rclone-current-linux-amd64.zip
+    # unzip without creating a directory to get binary at current level
+    unzip -j ./rclone-current-linux-amd64.zip
+    install ./rclone /usr/local/bin
+
+    popd
+}
+
+function copy_from_bincache_to_bucket() {
+    local channel="${1}"
+    local arch="${2}"
+    local version="${3}"
+
+    # assert that 'rclone' is available
+    if ! command -v rclone > /dev/null 2>&1
+    then
+        _install_rclone
+    fi
+
+    # TODO: Add 'r2' configuration as secret.
+    rclone sync --progress --http-url "https://${BUILDCACHE_SERVER}/${arch}/${version}" :http: "r2:flatcar/${channel}/${arch}/${version}"
+}
+
 function publish_sdk() {
     local docker_sdk_vernum="$1"
     local sdk_name=""
@@ -217,6 +246,11 @@ function _release_build_impl() {
     echo "===="
     echo "Done, now you can copy the images to Origin"
     echo "===="
+
+    echo "Experimental (i.e ignore if it fails) - copy the images to CloudFlare bucket for Alpha channel"
+    [[ "${CHANNEL}" != "alpha" ]] && exit 0
+    copy_from_bincache_to_bucket "${CHANNEL}" "${arch}" "${vernum}"
+
     # Future: trigger copy to Origin in a secure way
     # Future: trigger update payload signing
     # Future: trigger website update