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J Logan
6508acea81
- Closes #1675. - Illustrates how to create a container machine image that you can use with the Visual Studio Code remote developement SSH plugin.
36 lines
1.6 KiB
Docker
36 lines
1.6 KiB
Docker
FROM swift:6.3.2-noble
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# Install system dependencies for Swift + OpenSSH + systemd + containerization
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RUN apt-get update \
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&& apt-get install -y --no-install-recommends \
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curl ca-certificates git sudo systemd systemd-sysv openssh-server \
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binutils gpg vim libc6-dev libcurl4-openssl-dev libedit2 libgcc-s1 \
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unzip gnupg2 libgcc-13-dev libstdc++-13-dev libncurses-dev \
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libpython3-dev libsqlite3-0 libstdc++6 libxml2-dev libz3-dev \
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pkg-config tzdata zlib1g-dev \
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&& apt-get clean && rm -rf /var/lib/apt/lists/*
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# Passwordless sudo for all users
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RUN echo 'ALL ALL=(ALL:ALL) NOPASSWD: ALL' > /etc/sudoers.d/nopasswd \
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&& chmod 0440 /etc/sudoers.d/nopasswd
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# Configure OpenSSH for local-only use:
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# - Both password and public key auth enabled (no brute-force risk on loopback)
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# - UseDNS no — skip reverse DNS lookup, avoids multi-second connect delay
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# - GSSAPIAuthentication no — skip GSSAPI negotiation, faster handshake
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RUN mkdir -p /var/run/sshd \
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&& ssh-keygen -A \
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&& sed -i 's/^#\?PermitRootLogin.*/PermitRootLogin no/' /etc/ssh/sshd_config \
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&& sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication yes/' /etc/ssh/sshd_config \
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&& sed -i 's/^#\?PubkeyAuthentication.*/PubkeyAuthentication yes/' /etc/ssh/sshd_config \
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&& echo 'UseDNS no' >> /etc/ssh/sshd_config \
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&& echo 'GSSAPIAuthentication no' >> /etc/ssh/sshd_config \
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&& systemctl enable ssh
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RUN systemctl mask getty@.service systemd-logind.service \
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apt-daily.timer apt-daily-upgrade.timer fstrim.timer || true
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EXPOSE 22
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STOPSIGNAL SIGRTMIN+3
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CMD ["/sbin/init"]
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