DockerfileTest

ARG BASE_IMAGE="node:18"
FROM $BASE_IMAGE

ARG NPM_AUTH_TOKEN
ARG APP_UID=1000
ARG APP_GID=1000

USER root

# key dirs & globally usable binaries/packages
ENV APP_ROOT="/opt/app-root"
ENV APP_DIR="${APP_ROOT}/src"
ENV APP_FRONTEND_DIR="${APP_DIR}/frontend" 
ENV APP_BACKEND_DIR="${APP_DIR}/backend" 
ENV APP_SHARED_DIR="${APP_ROOT}/shared"
ENV APP_SHARED_BIN="${APP_SHARED_DIR}/node_modules/.bin" 
ENV PATH="${APP_SHARED_BIN}:${PATH}"

RUN mkdir -p \
        "${APP_DIR}" \
        "${APP_BACKEND_DIR}" \
        "${APP_FRONTEND_DIR}" \
        "${APP_SHARED_DIR}" \
    && chown -R "$APP_UID:$APP_GID" "${APP_ROOT}"

USER "$APP_UID:$APP_GID"
# thou shall not root

# note on copy+chown: do not use $USER var, it will - surprisingly - be root
COPY --chown="$APP_UID:$APP_GID" ./frontend/package.json "${APP_FRONTEND_DIR}/package.json"

RUN npm set "@dod-advana:registry" "https://npm.pkg.github.com" && \
    npm set "//npm.pkg.github.com/:_authToken" "${NPM_AUTH_TOKEN}" && \
    cd "${APP_FRONTEND_DIR}" && yarn install

COPY --chown="$APP_UID:$APP_GID" ./backend/package.json "${APP_BACKEND_DIR}/package.json"

RUN npm set "@dod-advana:registry" "https://npm.pkg.github.com" && \
    npm set "//npm.pkg.github.com/:_authToken" "${NPM_AUTH_TOKEN}" && \
    cd "${APP_BACKEND_DIR}" && yarn install

COPY --chown="$APP_UID:$APP_GID" . "${APP_DIR}"
RUN cd "${APP_FRONTEND_DIR}" \
    && npm run build \
    && mv build "${APP_BACKEND_DIR}" \
    && cd "${APP_BACKEND_DIR}" \
    && rm -rf "${APP_FRONTEND_DIR}"

# http & https
EXPOSE 8990 8443
WORKDIR "${APP_BACKEND_DIR}"
ENTRYPOINT ["node"]
CMD ["index.js"]