IXWebSocket/docker/Dockerfile.alpine

FROM alpine:3.11 as build

RUN apk add --no-cache gcc g++ musl-dev linux-headers cmake mbedtls-dev
RUN apk add --no-cache make
RUN apk add --no-cache zlib-dev

RUN addgroup -S app && adduser -S -G app app
RUN chown -R app:app /opt
RUN chown -R app:app /usr/local

# There is a bug in CMake where we cannot build from the root top folder
# So we build from /opt
COPY --chown=app:app . /opt
WORKDIR /opt

USER app
RUN [ "make", "ws_mbedtls_install" ]
RUN [ "rm", "-rf", "build" ]

FROM alpine:3.11 as runtime

RUN apk add --no-cache libstdc++ mbedtls
RUN apk add --no-cache ca-certificates

RUN addgroup -S app && adduser -S -G app app
COPY --chown=app:app --from=build /usr/local/bin/ws /usr/local/bin/ws
RUN chmod +x /usr/local/bin/ws
RUN ldd /usr/local/bin/ws

# Copy source code for gcc
COPY --chown=app:app --from=build /opt /opt

# Now run in usermode
USER app
WORKDIR /home/app

ENTRYPOINT ["ws"]
EXPOSE 8008