Merge pull request #328 from summittech-ca/summit/feature/add-docker-buildkit-support

Author: xtremerui

README.md

@@ -214,6 +214,9 @@ version is the image's digest.
 * `dockerfile`: *Optional.* The path of the `Dockerfile` in the directory if
   it's not at the root of the directory.
 
+* `docker_buildkit`: *Optional.* This enables a Docker BuildKit build. The value
+  should be set to 1 if applicable.
+
 * `import_file`: *Optional.* A path to a file to `docker import` and then push.
 
 * `labels`: *Optional.* A map of labels that will be added to the image.

assets/out

@@ -38,6 +38,7 @@ max_concurrent_uploads=$(jq -r '.source.max_concurrent_uploads // 3' < $payload)
 export AWS_ACCESS_KEY_ID=$(jq -r '.source.aws_access_key_id // ""' < $payload)
 export AWS_SECRET_ACCESS_KEY=$(jq -r '.source.aws_secret_access_key // ""' < $payload)
 export AWS_SESSION_TOKEN=$(jq -r '.source.aws_session_token // ""' < $payload)
+export DOCKER_BUILDKIT=$(jq -r '.source.docker_buildkit // 0' < $payload)
 
 if private_registry "${repository}" ; then
   registry="$(extract_registry "${repository}")"