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forgejo/docker/root/etc/s6/openssh/setup

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#!/bin/bash
if [ ! -d /data/ssh ]; then
mkdir -p /data/ssh
fi
if [ ! -f /data/ssh/ssh_host_ed25519_key ]; then
echo "Generating /data/ssh/ssh_host_ed25519_key..."
ssh-keygen -t ed25519 -f /data/ssh/ssh_host_ed25519_key -N "" > /dev/null
fi
if [ ! -f /data/ssh/ssh_host_rsa_key ]; then
echo "Generating /data/ssh/ssh_host_rsa_key..."
ssh-keygen -t rsa -b 2048 -f /data/ssh/ssh_host_rsa_key -N "" > /dev/null
fi
if [ ! -f /data/ssh/ssh_host_dsa_key ]; then
echo "Generating /data/ssh/ssh_host_dsa_key..."
ssh-keygen -t dsa -f /data/ssh/ssh_host_dsa_key -N "" > /dev/null
fi
if [ ! -f /data/ssh/ssh_host_ecdsa_key ]; then
echo "Generating /data/ssh/ssh_host_ecdsa_key..."
ssh-keygen -t ecdsa -b 256 -f /data/ssh/ssh_host_ecdsa_key -N "" > /dev/null
fi
if [ -d /etc/ssh ]; then
SSH_PORT=${SSH_PORT:-"22"} \
SSH_LISTEN_PORT=${SSH_LISTEN_PORT:-"${SSH_PORT}"} \
envsubst < /etc/templates/sshd_config > /etc/ssh/sshd_config
chmod 0644 /etc/ssh/sshd_config
fi
chown root:root /data/ssh/*
chmod 0700 /data/ssh
chmod 0600 /data/ssh/*