Initialize ChuBlog backend with SSH Git publishing

deploy/ssh-entrypoint.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+set -eu
+mkdir -p /run/sshd
+if [ ! -f /host-keys/ssh_host_ed25519_key ]; then
+    ssh-keygen -q -t ed25519 -N '' -f /host-keys/ssh_host_ed25519_key
+fi
+exec /usr/sbin/sshd -D -e