According to the documentation to be able to use --cache-from for remote registries you need to enable both buildkit and inline the metadata. We want to do this to support pulling from gitlab when users build their local docker images.
Signed-off-by: Alex Bennée <alex.ben...@linaro.org> --- .gitlab-ci.d/containers.yml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/.gitlab-ci.d/containers.yml b/.gitlab-ci.d/containers.yml index 580439647ef..ba9c24e98f1 100644 --- a/.gitlab-ci.d/containers.yml +++ b/.gitlab-ci.d/containers.yml @@ -13,7 +13,9 @@ script: - docker pull "$TAG" || docker pull "$COMMON_TAG" || true - sed -i -e "s,FROM qemu/,FROM $CI_REGISTRY_IMAGE/qemu/," tests/docker/dockerfiles/$NAME.docker - - docker build --cache-from "$TAG" --cache-from "$COMMON_TAG" --tag "$TAG" -f "tests/docker/dockerfiles/$NAME.docker" tests/docker/dockerfiles + - DOCKER_BUILDKIT=1 docker build --cache-from "$TAG" --cache-from "$COMMON_TAG" --tag "$TAG" + --build-arg BUILDKIT_INLINE_CACHE=1 + -f "tests/docker/dockerfiles/$NAME.docker" tests/docker/dockerfiles - docker push "$TAG" after_script: - docker logout -- 2.20.1