Phoenix Docker build fails on npm ci

Phoenix Forum Questions / Help
, ,
4

Thanks for sharing your input

got it to work finally with some changes :grin:

# https://elixirforum.com/t/could-use-some-feedback-on-this-multistage-dockerfile-1st-elixir-phoenix-deployment/30862/10?

########################
### Dependency stage ###
########################
FROM hexpm/elixir:1.11.2-erlang-23.1.3-debian-buster-20201012 AS deps

# install build dependencies
RUN apt-get -qq update && \
    apt-get -qq -y install build-essential npm git python --fix-missing --no-install-recommends


# prepare build dir
WORKDIR /app

ARG MIX_ENV
ARG RELEASE_LEVEL

ENV LANG=C.UTF-8 LC_ALL=C.UTF-8

# Update timezone
ENV TZ=Asia/Singapore

# install hex + rebar
RUN mix local.hex --force && \
    mix local.rebar --force

# set build ENV
ENV MIX_ENV=${MIX_ENV}
ENV RELEASE_LEVEL=${RELEASE_LEVEL}

COPY mix.exs mix.lock ./
COPY config config

# install mix dependencies
RUN mix deps.get --only ${MIX_ENV}
RUN mix deps.compile



########################
# Build Phoenix assets #
########################
# Using stretch for now because it includes Python
# Otherwise you get errors, could use a smaller image though
FROM node:14.15.1-stretch AS assets
WORKDIR /app/assets

COPY --from=deps /app/deps /app/deps/
COPY assets/package.json assets/package-lock.json ./
RUN npm ci --progress=false --no-audit --loglevel=error

COPY assets/ ./

RUN npm run deploy

#########################
# Create Phoenix digest #
#########################
FROM deps AS digest
COPY priv priv
RUN mix phx.digest

#######################
#### Create release ###
#######################
FROM digest AS release
ARG MIX_ENV
ENV MIX_ENV=${MIX_ENV}
COPY lib ./lib
RUN mix do compile, release

#################################################
# Create the actual image that will be deployed #
#################################################
FROM debian:buster-slim AS deploy

# Install stable dependencies that don't change often
RUN apt-get update && \
  apt-get install -y --no-install-recommends \
  apt-utils \
  openssl \
  curl \
  wget && \
  rm -rf /var/lib/apt/lists/*


# Set WORKDIR after setting user to nobody so it automatically gets the right permissions
# When the app starts it will need to be able to create a tmp directory in /app
WORKDIR /app

ARG MIX_ENV
ARG RELEASE_LEVEL

ENV MIX_ENV=${MIX_ENV}
ENV RELEASE_LEVEL=${RELEASE_LEVEL}

ENV LANG=C.UTF-8 LC_ALL=C.UTF-8

# Update timezone
ENV TZ=Asia/Singapore

COPY --from=release /app/_build/${MIX_ENV}/rel/ghost_rider ./

ENV HOME=/app

# Exposes port to the host machine
EXPOSE 8080

CMD ["bin/ghost_rider", "start"]

I will try to submit to the official hex docs for deployment as the recipe there is incomplete in my view and not so convenient for 1st time users of phoenix

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