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xie186 / miscellaneous_note

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Extract docker files from image #10

Open xie186 opened 5 years ago

xie186 commented 5 years ago

File: Dockerfile

https://github.com/CenturyLinkLabs/dockerfile-from-image/issues/14#issuecomment-272294267

FROM alpine:3.2
MAINTAINER CenturyLink Labs <clt-labs-futuretech@centurylink.com>

RUN apk --update add ruby-dev ca-certificates && \
    gem install --no-rdoc --no-ri docker-api && \
    apk del ruby-dev ca-certificates && \
    apk add ruby ruby-json && \
    rm /var/cache/apk/*

ADD dockerfile-from-image.rb /usr/src/app/dockerfile-from-image.rb
RUN chmod +x /usr/src/app/dockerfile-from-image.rb

ENTRYPOINT ["/usr/src/app/dockerfile-from-image.rb"]
CMD ["--help"]


sudo docker build -t docker-from-file-image - < Dockerfile