A small, lightweight and extensible DynDNS server written with Ruby and Rack.
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FROM alpine:3.12
EXPOSE 5353 8080
ENV VERSION=3.0.0
RUN apk --no-cache add openssl ca-certificates && \
apk --no-cache add ruby ruby-etc ruby-io-console ruby-json ruby-webrick && \
apk --no-cache add --virtual .build-deps ruby-dev build-base tzdata && \
gem install --no-document dyndnsd -v ${VERSION} && \
# set timezone to Berlin
cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime && \
apk del .build-deps
ENTRYPOINT ["dyndnsd", "/etc/dyndnsd/config.yml"]