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dyndnsd/docker/Dockerfile

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docker: update alpine Docker tag to v3.21.0
2024-12-12 01:06:28 +01:00
FROM alpine:3.21.0
docs: add example Dockerfile
2020-07-30 19:49:31 +02:00
EXPOSE 5353 8080
docs: improve release process
2021-04-16 23:16:58 +02:00
ARG DYNDNSD_VERSION
docs: add example Dockerfile
2020-07-30 19:49:31 +02:00
docker: revert update Alpine tools to fix apk-tools vulnerability (ineffective) This reverts commit b8fd42fd85acb51d32102f0ce40c5f64c505d4ca.
2021-08-20 12:56:38 +02:00
RUN apk --no-cache add openssl ca-certificates && \
docs: add example Dockerfile
2020-07-30 19:49:31 +02:00
apk --no-cache add ruby ruby-etc ruby-io-console ruby-json ruby-webrick && \
docker: allow successful compiling of nio4r gem dependency - now seems to need linux-headers, see https://github.com/socketry/nio4r/issues/225
2021-02-18 11:25:05 +01:00
apk --no-cache add --virtual .build-deps linux-headers ruby-dev build-base tzdata && \
docker: add image release on tag and periodic vulnerability scan
2020-08-17 12:08:42 +02:00
gem install --no-document dyndnsd -v ${DYNDNSD_VERSION} && \
ci: use locally built gem file for testing Docker image build
2021-04-16 18:11:23 +02:00
rm -rf /usr/lib/ruby/gems/*/cache/ && \
docs: add example Dockerfile
2020-07-30 19:49:31 +02:00
# set timezone to Berlin
cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime && \
apk del .build-deps
docker: run as non-root user by default
2021-04-02 10:54:48 +02:00
# Follow the principle of least privilege: run as unprivileged user.
# Running as non-root enables running this image in platforms like OpenShift
# that do not allow images running as root.
# User ID 65534 is usually user 'nobody'.
USER 65534
docs: add example Dockerfile
2020-07-30 19:49:31 +02:00
ENTRYPOINT ["dyndnsd", "/etc/dyndnsd/config.yml"]
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