# syntax=docker/dockerfile:1

FROM alpine:latest

# Install caddy
RUN apk add --no-cache caddy

# Create non-root user
ARG CUSTOM_UID
ARG CUSTOM_GID
ENV CUSTOM_USERNAME=webserver
ENV CUSTOM_GROUPNAME=webserver
RUN addgroup --gid ${CUSTOM_GID:-1000} ${CUSTOM_GROUPNAME} && \
    adduser --uid ${CUSTOM_UID:-1000} --shell /bin/ash ${CUSTOM_USERNAME} --ingroup ${CUSTOM_GROUPNAME} --disabled-password && \
    mkdir /app && chown ${CUSTOM_UID:-1000}:${CUSTOM_GID:-1000} /app && chmod 700 /app

# Copy caddy config
WORKDIR /app
COPY --chown=${CUSTOM_USERNAME}:${CUSTOM_GROUPNAME} Caddyfile /app/

# Run Caddy in production mode
USER ${CUSTOM_UID:-1000}:${CUSTOM_GID:-1000}
EXPOSE 8000
ENTRYPOINT ["caddy", "run", "--config", "/app/Caddyfile", "--adapter", "caddyfile"]
