FROM dunglas/frankenphp ARG USER=appuser RUN \ # Use "adduser -D ${USER}" for alpine based distros useradd ${USER}; \ # Remove default capability setcap -r /usr/local/bin/frankenphp; \ # Give write access to /data/caddy and /config/caddy chown -R ${USER}:${USER} /data/caddy && chown -R ${USER}:${USER} /config/caddy USER ${USER}