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34 lines
1014 B
Plaintext
34 lines
1014 B
Plaintext
#
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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 build . -f Dockerfile-sslip.io-dns-server -t cunnie/sslip.io-dns-server
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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 alpine AS sslip.io
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LABEL maintainer="brian.cunnie@gmail.com"
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RUN wget https://github.com/cunnie/sslip.io/releases/download/2.1.2/sslip.io-dns-server-linux-amd64 -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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