katbin/Dockerfile

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Docker
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FROM elixir:alpine AS build
# install build dependencies
RUN apk add --no-cache build-base npm git curl py-pip rust cargo
# prepare build dir
WORKDIR /app
# install hex + rebar
RUN mix local.hex --force && \
mix local.rebar --force
# set build ENV
ENV MIX_ENV=prod
# install mix dependencies
COPY mix.exs mix.lock ./
COPY config config
RUN mix do deps.get, deps.compile
# build assets
COPY assets/package.json assets/package-lock.json ./assets/
RUN npm --prefix ./assets ci --progress=false --no-audit --loglevel=error
COPY priv priv
COPY assets assets
COPY lib lib
COPY native native
RUN npm run --prefix ./assets deploy
RUN mix phx.digest
# uncomment COPY if rel/ exists
# COPY rel rel
RUN mix do compile, release
# prepare release image
FROM alpine AS app
RUN apk add --no-cache openssl ncurses-libs libstdc++
WORKDIR /app
RUN chown nobody:nobody /app
USER nobody:nobody
COPY --from=build --chown=nobody:nobody /app/_build/prod/rel/ketbin ./
COPY --chown=nobody:nobody startup.sh startup.sh
RUN chmod +x /app/startup.sh
ENV HOME=/app
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CMD ["/app/startup.sh"]