Dockerfile %%cluster-api-provider-metal3_version%% cluster-api-provider-metal3 patch Dockerfile IMG_PREFIX=$(rpm --macros=/root/.rpmmacros -E %{?img_prefix}) IMG_PREFIX IMG_REPO=$(rpm --macros=/root/.rpmmacros -E %img_repo) IMG_REPO SUPPORT_LEVEL=$(rpm --macros=/root/.rpmmacros -E %support_level) SUPPORT_LEVEL