Phoenix Dockerfile

.dockerignore

_build/
.elixir_ls/
assets/node_modules/
deps/
priv/static

Dockerfile

FROM elixir:1.11-alpine as build
ENV MIX_ENV=prod
WORKDIR /tmp/tprofile
RUN mix local.hex --force && mix local.rebar --force

COPY mix.exs mix.lock ./
RUN mix do deps.get --only prod

FROM node:15-alpine as frontend
WORKDIR /tmp/tprofile_front

COPY --from=build /tmp/tprofile/deps/phoenix/ ./deps/phoenix/
COPY --from=build /tmp/tprofile/deps/phoenix_html/ ./deps/phoenix_html/
COPY --from=build /tmp/tprofile/deps/phoenix_live_view/ ./deps/phoenix_live_view/

COPY assets/ ./assets/
RUN npm ci --progress=false --no-audit --loglevel=error --prefix assets
ENV NODE_ENV=production
RUN npm run deploy --prefix assets

FROM build as release
COPY config ./config
COPY lib ./lib
COPY priv ./priv
COPY --from=frontend /tmp/tprofile_front/priv/static ./priv/static/

RUN mix do phx.digest, compile, release

FROM alpine:3.13 as app
WORKDIR /app
RUN chown -R nobody:nobody /app
RUN apk add --no-cache openssl ncurses-libs

USER nobody:nobody
COPY --from=release --chown=nobody:nobody /tmp/tprofile/_build/prod/rel/tprofile ./
ENV HOME=/app
CMD ["bin/tprofile", "start"]