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docker: allow successful compiling of nio4r gem dependency

- now seems to need linux-headers, see https://github.com/socketry/nio4r/issues/225
tags/v3.3.1
Christian Nicolai 2 months ago
parent
commit
920d82f073
  1. 2
      docker/Dockerfile

2
docker/Dockerfile

@ -6,7 +6,7 @@ ARG DYNDNSD_VERSION=3.3.0
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 && \
apk --no-cache add --virtual .build-deps linux-headers ruby-dev build-base tzdata && \
gem install --no-document dyndnsd -v ${DYNDNSD_VERSION} && \
# set timezone to Berlin
cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime && \

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