mirror of
https://github.com/cmur2/dyndnsd.git
synced 2024-11-18 20:56:16 +01:00
23 lines
801 B
Docker
23 lines
801 B
Docker
FROM alpine:3.15.1
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EXPOSE 5353 8080
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ARG DYNDNSD_VERSION
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RUN apk --no-cache add openssl ca-certificates && \
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apk --no-cache add ruby ruby-etc ruby-io-console ruby-json ruby-webrick && \
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apk --no-cache add --virtual .build-deps linux-headers ruby-dev build-base tzdata && \
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gem install --no-document dyndnsd -v ${DYNDNSD_VERSION} && \
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rm -rf /usr/lib/ruby/gems/*/cache/ && \
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# set timezone to Berlin
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cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime && \
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apk del .build-deps
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# Follow the principle of least privilege: run as unprivileged user.
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# Running as non-root enables running this image in platforms like OpenShift
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# that do not allow images running as root.
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# User ID 65534 is usually user 'nobody'.
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USER 65534
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ENTRYPOINT ["dyndnsd", "/etc/dyndnsd/config.yml"]
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