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