mirror of
https://github.com/cunnie/sslip.io.git
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38 lines
1.2 KiB
Docker
38 lines
1.2 KiB
Docker
#
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# cunnie/sslip.io-dns-server: sslip.io DNS server Dockerfile
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#
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# Dockerfile of a (Golang-based) DNS server that responds to DNS queries of
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# hostnames with embedded IP addresses (e.g. "169.254.169.254.example.com")
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# with the IP address ("169.254.169.254). See https://sslip.io for more
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# information
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#
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# To build:
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#
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# docker buildx build -f Dockerfile-sslip.io-dns-server -t cunnie/sslip.io-dns-server --platform linux/arm64/v8,linux/amd64 --push .
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#
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# Typical start command:
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#
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# docker run -d --rm -p 3353:53/udp cunnie/sslip.io-dns-server
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#
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# To test from host:
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#
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# dig +short 127.0.0.1.example.com @localhost -p 3353
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# 127.0.0.1
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#
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FROM fedora
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LABEL org.opencontainers.image.authors="Brian Cunnie <brian.cunnie@gmail.com>"
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RUN dnf install -y bind-utils
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ARG TARGETARCH # amd64, arm64 (so I can run on AWS graviton2)
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RUN curl -f -L https://github.com/cunnie/sslip.io/releases/download/4.1.0/sslip.io-dns-server-linux-$TARGETARCH \
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-o /usr/sbin/sslip.io-dns-server; \
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chmod 755 /usr/sbin/sslip.io-dns-server
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ENTRYPOINT ["/usr/sbin/sslip.io-dns-server"]
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# DNS listens on port 53 UDP
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# The `EXPOSE` directive doesn't do much in our case. We use it for documentation.
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EXPOSE 53/udp
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