Garrett Mills
47c0735345
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28 lines
1.0 KiB
Bash
28 lines
1.0 KiB
Bash
#!/bin/bash -e
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# Write an sshd_config.d drop-in with a HostKey line for each key in /etc/ssh/keys,
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# then exec any given command (e.g. /usr/sbin/sshd -D -e).
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set -euo pipefail
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shopt -s nullglob
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keys=( /etc/ssh/keys/ssh_host_*_key )
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(( ${#keys[@]} )) || { echo "no host keys in /etc/ssh/keys" >&2; exit 1; }
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mkdir -p "$(dirname "/etc/ssh/sshd_config.d/10-hostkeys.conf")"
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printf 'HostKey %s\n' "${keys[@]}" > "/etc/ssh/sshd_config.d/10-hostkeys.conf"
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# Setup the target user and their group
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echo "Setting up target user ${TARGET_USER} (uid=${TARGET_UID}, gid=${TARGET_GID})..."
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groupadd --gid "$TARGET_GID" "$TARGET_USER"
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# --no-create-home since we assume the home dir will be mounted in the container
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adduser --gid "$TARGET_GID" --uid "$TARGET_UID" --no-create-home "$TARGET_USER"
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touch /var/log/container-stdout.log
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chown "$TARGET_USER":"$TARGET_USER" /var/log/container-stdout.log
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# This only really matters for the first-run:
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chown "$TARGET_USER":"$TARGET_USER" "/home/$TARGET_USER"
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echo "Ready."
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tail -f /var/log/container-stdout.log &
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/usr/sbin/sshd -D
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