fly deploy fails while installing floki (timeout on mix deps.get)

As title says, building the app times out repeatedly while installing floki

3.018 * Getting floki (Hex package)
123.0 ** (exit) exited in:, {:await, {:tarball, "hexpm", "floki", "0.36.0"}}, 120000)
123.0     ** (EXIT) time out

Attempting to fly deploy --local-only causes segfault

Even more curiously, floki is only specified for the test environment and the builder is theoretically running mix.deps --only prod

{:floki, ">= 0.30.0", only: :test},

This is very odd, would you be able to share your fly.toml and your Dockerfile?

Here’s the fly.toml (it’s an umbrella app, and this is at the root)

# fly.toml app configuration file generated for quickbooks-api on 2024-05-01T18:40:16-07:00
# See for information about how to use this file.

app = 'quickbooks-api'
primary_region = 'sjc'
kill_signal = 'SIGTERM'


  PHX_HOST = ''
  PORT = '8080'

  internal_port = 8080
  force_https = true
  auto_stop_machines = true
  auto_start_machines = true
  min_machines_running = 0
  processes = ['app']

    type = 'connections'
    hard_limit = 1000
    soft_limit = 1000

  memory = '1gb'
  cpu_kind = 'shared'
  cpus = 1

And here’s the Dockerfile:

# Find eligible builder and runner images on Docker Hub. We use Ubuntu/Debian
# instead of Alpine to avoid DNS resolution issues in production.
# This file is based on these images:
#   - - for the build image
#   - - for the release image
#   - - resource for finding needed packages
#   - Ex: hexpm/elixir:1.16.2-erlang-26.2.2-debian-bullseye-20240130-slim
ARG DEBIAN_VERSION=bullseye-20240130-slim


FROM ${BUILDER_IMAGE} as builder

# install build dependencies
RUN apt-get update -y && apt-get install -y build-essential git \
    && apt-get clean && rm -f /var/lib/apt/lists/*_*

# prepare build dir

# 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 apps/quickbooks/mix.exs ./apps/quickbooks/mix.exs
COPY apps/quickbooks_web/mix.exs ./apps/quickbooks_web/mix.exs
RUN mix deps.get --only $MIX_ENV
RUN mkdir config

# copy compile-time config files before we compile dependencies
# to ensure any relevant config change will trigger the dependencies
# to be re-compiled.
COPY config/config.exs config/${MIX_ENV}.exs config/
RUN mix deps.compile

COPY apps/quickbooks/priv apps/quickbooks/priv
COPY apps/quickbooks_web/priv apps/quickbooks_web/priv

COPY apps/quickbooks/lib apps/quickbooks/lib
COPY apps/quickbooks_web/lib apps/quickbooks_web/lib

COPY apps/quickbooks_web/assets apps/quickbooks_web/assets

# compile assets
RUN cd apps/quickbooks_web && mix assets.deploy

# Compile the release
RUN mix compile

# Changes to config/runtime.exs don't require recompiling the code
COPY config/runtime.exs config/

COPY rel rel
RUN mix release

# start a new build stage so that the final image will only contain
# the compiled release and other runtime necessities

RUN apt-get update -y && \
  apt-get install -y libstdc++6 openssl libncurses5 locales ca-certificates libxml2 libxml2-utils\
  && apt-get clean && rm -f /var/lib/apt/lists/*_*

# Set the locale
RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen


WORKDIR "/app"
RUN chown nobody /app

# set runner ENV
ENV MIX_ENV="prod"

# Only copy the final release from the build stage
COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/quickbooks_umbrella ./

USER nobody

# If using an environment that doesn't automatically reap zombie processes, it is
# advised to add an init process such as tini via `apt-get install`
# above and adding an entrypoint. See for details
# ENTRYPOINT ["/tini", "--"]

CMD ["/app/bin/server"]

Also, FYI, removing floki from mix.exs allowed it to succeed but that’s obviously problematic long-term.

For anyone dealing with this, it appears to be the issue found here: Missing dependency converged error for overridden hex dependency in umbrella · Issue #13490 · elixir-lang/elixir · GitHub