docker-erlang-example/advanced_examples/minikube-prom-graf/Dockerfile

# Build stage 0
FROM erlang:alpine

# Install some libs
RUN apk add --no-cache g++ && \
    apk add --no-cache make

# Reset working directory
RUN mkdir /buildroot
WORKDIR /buildroot

# Copy our Erlang test application
COPY dockerwatch dockerwatch

# And build the release
WORKDIR dockerwatch
RUN rebar3 as prod release


# Build stage 1
FROM alpine

# Install some libs
RUN apk add --no-cache openssl && \
    apk add --no-cache ncurses-libs && \
    apk add --no-cache libstdc++

# Install the released application
COPY --from=0 /buildroot/dockerwatch/_build/prod/rel/dockerwatch /dockerwatch

# Expose relevant ports
EXPOSE 8080
EXPOSE 8443

# Use sh in order for child reaping to work
CMD ["sh","-c","/dockerwatch/bin/dockerwatch foreground"]