# syntax=docker/dockerfile:1
FROM alpine
RUN apk add --no-cache coreutils jq
ARG DOCKER_METADATA_OUTPUT_VERSION
ARG DOCKER_METADATA_OUTPUT_TAGS
ARG DOCKER_METADATA_OUTPUT_LABELS
ARG DOCKER_METADATA_OUTPUT_JSON
RUN printenv DOCKER_METADATA_OUTPUT_VERSION
RUN printenv DOCKER_METADATA_OUTPUT_TAGS
RUN printenv DOCKER_METADATA_OUTPUT_LABELS
RUN printenv DOCKER_METADATA_OUTPUT_JSON
RUN echo $DOCKER_METADATA_OUTPUT_JSON | jq