# build stage
FROM node:lts-alpine as build-stage

WORKDIR /app

COPY package*.json ./
RUN yarn install --frozen-lockfile

COPY . .
RUN yarn build

# Multi arch build support
FROM alpine as qemu

ARG QEMU_VERSION="v4.2.0-7"

RUN wget https://github.com/multiarch/qemu-user-static/releases/download/${QEMU_VERSION}/qemu-arm-static && chmod +x qemu-arm-static

# production stage
FROM arm32v7/alpine:3.11

COPY --from=qemu qemu-arm-static /usr/bin/

ENV USER darkhttpd
ENV GROUP darkhttpd
ENV GID 911
ENV UID 911
ENV PORT 8080

RUN addgroup -S ${GROUP} -g ${GID} && adduser -D -S -u ${UID} ${USER} ${GROUP} && \
    apk add -U --no-cache darkhttpd su-exec && \
    rm /usr/bin/qemu-arm-static

COPY --from=build-stage --chown=${USER}:${GROUP} /app/dist /www/
COPY --from=build-stage --chown=${USER}:${GROUP} /app/dist/assets /www/default-assets
COPY entrypoint.sh /entrypoint.sh

HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://127.0.0.1:${PORT}/ || exit 1

EXPOSE ${PORT}
VOLUME /www/assets
ENTRYPOINT ["/bin/sh", "/entrypoint.sh"]