Falcon Config for Roda Docker Container #208

Morzaram · 2023-07-06T15:47:44Z

Morzaram
Jul 6, 2023

Hey there, I'm trying to get get falcon launched but I'm struggling with running bundle exec falcon host

My docker file is

ARG RUBY_VERSION=3.2.2
FROM ruby:$RUBY_VERSION-slim as base

# Rack app lives here
WORKDIR /app

# Update gems and bundler
RUN gem update --system --no-document && \
    gem install -N bundler

# Install libvips and related dependencies
RUN apt-get update -qq && \
    apt-get install --no-install-recommends -y libvips42 pkg-config libglib2.0-dev libexpat1-dev

# Throw-away build stage to reduce size of final image
FROM base as build

# Install packages needed to build gems
RUN apt-get update -qq && \
    apt-get install --no-install-recommends -y build-essential git 
    
RUN gem install ruby-vips

# Install application gems
COPY Gemfile* ./
RUN bundle install


# Final stage for app image
FROM base
RUN mkdir /tmp/invoices


# Run and own the application files as a non-root user for security
RUN useradd ruby --home /app --shell /bin/bash
USER ruby:ruby

# Copy built artifacts: gems, application
COPY --from=build /usr/local/bundle /usr/local/bundle
COPY --from=build --chown=ruby:ruby /app /app

# Copy application code
COPY --chown=ruby:ruby . .

ENV OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES

# Start the server
EXPOSE 8080
# CMD ["bundle", "exec", "puma", "-C", "puma.rb"]

CMD bundle exec falcon host

My falcon.rb is

#!/usr/bin/env -S falcon host
# frozen_string_literal: true

load :rack, :supervisor

hostname = File.basename(__dir__)
rack hostname do
  endpoint Async::HTTP::Endpoint.parse("http://0.0.0.0:8080").with(
             protocol: Async::HTTP::Protocol::HTTP2
           )
end

supervisor

My config.ru is

require "roda"
require_relative 'app'
run App.freeze.app

And when I try to launch it I get:

Rack::Server is deprecated and replaced by Rackup::Server

{"time":"2023-07-06T15:45:45+00:00","severity":"info","class":"Falcon::Command::Host","oid":3160,"pid":8,"subject":"Falcon::Command::Host","message":"Falcon Host v0.39.2 taking flight!\n- Configuration: falcon.rb\n- To terminate: Ctrl-C or kill 8\n- To reload: kill -HUP 8\n"}

{"time":"2023-07-06T15:45:45+00:00","severity":"info","class":"Falcon::Service::Application","oid":3180,"pid":8,"subject":"#<Falcon::Service::Application:0x0000ffffa435e6a8>","message":"Binding to #<Async::HTTP::Endpoint http://0.0.0.0:8080/ {:protocol=>Async::HTTP::Protocol::HTTP2}>..."}

{"time":"2023-07-06T15:45:45+00:00","severity":"info","class":"Falcon::Service::Supervisor","oid":3200,"pid":8,"subject":"#<Falcon::Service::Supervisor:0x0000ffffa435e270>","message":"Binding to #<Async::IO::UNIXEndpoint \"/app/supervisor.ipc\">..."}

{"time":"2023-07-06T15:45:45+00:00","severity":"error","class":"Module","oid":3240,"pid":8,"subject":"Falcon::Command","message":"wrong number of arguments (given 4, expected 3)","error":{"kind":"ArgumentError","message":"wrong number of arguments (given 4, expected 3)","stack":"/usr/local/bundle/gems/async-2.0.0/lib/async/scheduler.rb:185:in `io_write'\n/usr/local/bundle/gems/console-1.17.2/lib/console/serialized/logger.rb:81:in `write'\n/usr/local/bundle/gems/console-1.17.2/lib/console/serialized/logger.rb:81:in `puts'\n/usr/local/bundle/gems/console-1.17.2/lib/console/serialized/logger.rb:81:in `call'\n/usr/local/bundle/gems/console-1.17.2/lib/console/filter.rb:130:in `call'\n/usr/local/bundle/gems/console-1.17.2/lib/console/filter.rb:29:in `block (3 levels) in []'\n/usr/local/bundle/gems/async-2.0.0/lib/async/task.rb:240:in `fail!'\n/usr/local/bundle/gems/async-2.0.0/lib/async/task.rb:264:in `rescue in block in schedule'\n/usr/local/bundle/gems/async-2.0.0/lib/async/task.rb:261:in `block in schedule'\n\nCaused by: Errno::EACCES Permission denied @ apply2files - /app/supervisor.ipc\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/unix_endpoint.rb:55:in `unlink'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/unix_endpoint.rb:55:in `rescue in bind'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/unix_endpoint.rb:50:in `bind'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/endpoint.rb:103:in `block in bound'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/endpoint.rb:84:in `each'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/endpoint.rb:102:in `bound'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/shared_endpoint.rb:32:in `bound'\n/usr/local/bundle/gems/falcon-0.39.2/lib/falcon/service/supervisor.rb:80:in `block in start'\n/usr/local/bundle/gems/async-2.0.0/lib/async/task.rb:258:in `block in schedule'\n\nCaused by: Errno::EADDRINUSE Address already in use - bind(2) for /app/supervisor.ipc\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/socket.rb:160:in `bind'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/socket.rb:160:in `block in bind'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/socket.rb:101:in `build'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/socket.rb:159:in `bind'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/unix_endpoint.rb:51:in `bind'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/endpoint.rb:103:in `block in bound'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/endpoint.rb:84:in `each'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/endpoint.rb:102:in `bound'\n/usr/local/bundle/gems/async-io-1.35.0/lib/async/io/shared_endpoint.rb:32:in `bound'\n/usr/local/bundle/gems/falcon-0.39.2/lib/falcon/service/supervisor.rb:80:in `block in start'\n/usr/local/bundle/gems/async-2.0.0/lib/async/task.rb:258:in `block in schedule'\n"}}

So I'm not sure if my config is wrong or if this is a bug...

Apologies in advance if the answer is obvious. First time going outside of rails for these things and really struggling with these concepts

Thank you!

Answered by ioquatix

Jul 11, 2023

Thanks for the lockfile details.

The latest version of async is 2.6.2, and in your lockfile it appears to be 2.0.0.

https://rubygems.org/gems/async

One way to figure out why this might be happening is to pin to the latest version of async and run bundle update again, e.g. add this line:

gem 'async', '~> 2.6.2'

It may print out an error if some dependency can't be resolved. If so, can you let me know?

View full answer

ioquatix · 2023-07-11T00:34:58Z

ioquatix
Jul 11, 2023
Maintainer

Are you able to update to the latest version of the console, async and io-event gems? Do you have a gem lockfile?

3 replies

Morzaram Jul 11, 2023
Author

Hey thanks for getting back to me! I believe everything is up to date since it's newly installed. I ran bundle update and still no luck

Here's my gemlock file:

GIT
  remote: https://github.com/rspec/rspec-core.git
  revision: 81589709e88db1ec2537faee3a7f4a43c7d9aac1
  branch: main
  specs:
    rspec-core (3.13.0.pre)
      rspec-support (= 3.13.0.pre)

GIT
  remote: https://github.com/rspec/rspec-expectations.git
  revision: 3c1dfaed4cbb067b743218621b71ab3dfacd973f
  branch: main
  specs:
    rspec-expectations (3.13.0.pre)
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (= 3.13.0.pre)

GIT
  remote: https://github.com/rspec/rspec-mocks.git
  revision: 56d0a4bc66366d5907d200c3fad230ee30cc5786
  branch: main
  specs:
    rspec-mocks (3.13.0.pre)
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (= 3.13.0.pre)

GIT
  remote: https://github.com/rspec/rspec-support.git
  revision: 6c74dcf0b8bca455ea9895512f8f36f0e9c4bffe
  branch: main
  specs:
    rspec-support (3.13.0.pre)

GIT
  remote: https://github.com/rspec/rspec.git
  revision: cfb135a48b343fa75f28841f14874ea05e8e195f
  branch: main
  specs:
    rspec (3.13.0.pre)
      rspec-core (= 3.13.0.pre)
      rspec-expectations (= 3.13.0.pre)
      rspec-mocks (= 3.13.0.pre)

GEM
  remote: https://rubygems.org/
  specs:
    addressable (2.8.4)
      public_suffix (>= 2.0.2, < 6.0)
    ansi (1.5.0)
    ast (2.4.2)
    async (2.0.0)
      console (~> 1.10)
      io-event (~> 1.0.0)
      timers (~> 4.1)
    async-container (0.16.12)
      async
      async-io
    async-http (0.56.6)
      async (>= 1.25)
      async-io (>= 1.28)
      async-pool (>= 0.2)
      protocol-http (~> 0.22.0)
      protocol-http1 (~> 0.14.0)
      protocol-http2 (~> 0.14.0)
      traces (~> 0.4.0)
    async-http-cache (0.4.3)
      async-http (~> 0.56)
    async-io (1.35.0)
      async
    async-pool (0.4.0)
      async (>= 1.25)
    aws-eventstream (1.2.0)
    aws-partitions (1.785.0)
    aws-sdk-core (3.177.0)
      aws-eventstream (~> 1, >= 1.0.2)
      aws-partitions (~> 1, >= 1.651.0)
      aws-sigv4 (~> 1.5)
      jmespath (~> 1, >= 1.6.1)
    aws-sdk-kms (1.70.0)
      aws-sdk-core (~> 3, >= 3.177.0)
      aws-sigv4 (~> 1.1)
    aws-sdk-s3 (1.128.0)
      aws-sdk-core (~> 3, >= 3.177.0)
      aws-sdk-kms (~> 1)
      aws-sigv4 (~> 1.6)
    aws-sigv4 (1.6.0)
      aws-eventstream (~> 1, >= 1.0.2)
    build-environment (1.13.0)
    console (1.17.2)
      fiber-annotation
      fiber-local
    content_disposition (1.0.0)
    debug (1.8.0)
      irb (>= 1.5.0)
      reline (>= 0.3.1)
    diff-lcs (1.5.0)
    down (5.4.1)
      addressable (~> 2.8)
    falcon (0.39.2)
      async
      async-container (~> 0.16.0)
      async-http (~> 0.56.0)
      async-http-cache (~> 0.4.0)
      async-io (~> 1.22)
      build-environment (~> 1.13)
      bundler
      localhost (~> 1.1)
      process-metrics (~> 0.2.0)
      rack (>= 1.0)
      samovar (~> 2.1)
    fast_gettext (2.3.0)
    ffi (1.15.5)
    fiber-annotation (0.2.0)
    fiber-local (1.0.0)
    io-console (0.6.0)
    io-event (1.0.9)
    irb (1.7.1)
      reline (>= 0.3.0)
    jmespath (1.6.2)
    localhost (1.1.10)
    mapping (1.1.1)
    marcel (0.3.3)
      mimemagic (~> 0.3.2)
    matrix (0.4.2)
    mimemagic (0.3.10)
      nokogiri (~> 1)
      rake
    nio4r (2.5.9)
    nokogiri (1.15.3-arm64-darwin)
      racc (~> 1.4)
    oga (3.4)
      ast
      ruby-ll (~> 2.1)
    pastel (0.8.0)
      tty-color (~> 0.5)
    pdf-core (0.9.0)
    prawn (2.4.0)
      pdf-core (~> 0.9.0)
      ttfunk (~> 1.7)
    prawn-html (0.7.1)
      oga (~> 3.3)
      prawn (~> 2.4)
    prawn-table (0.2.2)
      prawn (>= 1.3.0, < 3.0.0)
    process-metrics (0.2.1)
      console (~> 1.8)
      samovar (~> 2.1)
    protocol-hpack (1.4.2)
    protocol-http (0.22.9)
    protocol-http1 (0.14.6)
      protocol-http (~> 0.22)
    protocol-http2 (0.14.2)
      protocol-hpack (~> 1.4)
      protocol-http (~> 0.18)
    public_suffix (5.0.3)
    puma (6.3.0)
      nio4r (~> 2.0)
    r18n-core (3.2.0)
    racc (1.7.1)
    rack (3.0.8)
    rack-test (2.1.0)
      rack (>= 1.3)
    rackup (2.1.0)
      rack (>= 3)
      webrick (~> 1.8)
    rake (13.0.6)
    reline (0.3.6)
      io-console (~> 0.5)
    roda (3.69.0)
      rack
    roda-enhanced_logger (0.5.0)
      roda (>= 3.19.0)
      tty-logger (>= 0.3, < 1.0)
    roda-i18n (0.4.0)
      r18n-core (~> 3.0)
      roda (~> 3.7)
      tilt
    rollbar (3.4.0)
    ruby-ll (2.1.3)
      ansi
      ast
    ruby-vips (2.1.4)
      ffi (~> 1.12)
    samovar (2.2.0)
      console (~> 1.0)
      mapping (~> 1.0)
    shrine (3.5.0)
      content_disposition (~> 1.0)
      down (~> 5.1)
    tilt (2.2.0)
    timers (4.3.5)
    traces (0.4.1)
    ttfunk (1.7.0)
    tty-color (0.6.0)
    tty-logger (0.6.0)
      pastel (~> 0.8)
    webrick (1.8.1)
    zeitwerk (2.6.8)

PLATFORMS
  arm64-darwin-21

DEPENDENCIES
  aws-sdk-s3 (~> 1)
  debug (>= 1.0.0)
  falcon (~> 0.39.2)
  fast_gettext (~> 2.3.0)
  marcel (~> 0.3.1)
  matrix
  nokogiri (~> 1.15)
  prawn (~> 2.4)
  prawn-html
  prawn-table (~> 0.2.2)
  puma
  rack
  rack-test
  rackup (~> 2.1)
  roda
  roda-enhanced_logger
  roda-i18n
  rollbar
  rspec!
  rspec-core!
  rspec-expectations!
  rspec-mocks!
  rspec-support!
  ruby-vips
  shrine (~> 3.0)
  zeitwerk (~> 2.6)

BUNDLED WITH
   2.4.13

ioquatix Jul 11, 2023
Maintainer

Thanks for the lockfile details.

The latest version of async is 2.6.2, and in your lockfile it appears to be 2.0.0.

https://rubygems.org/gems/async

One way to figure out why this might be happening is to pin to the latest version of async and run bundle update again, e.g. add this line:

gem 'async', '~> 2.6.2'

It may print out an error if some dependency can't be resolved. If so, can you let me know?

Answer selected by Morzaram

Morzaram Jul 11, 2023
Author

Okay so apparently I was on Ruby 3.1.2 which is why the update didn't upgrade this. Thank you for your help!

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Falcon Config for Roda Docker Container #208

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Falcon Config for Roda Docker Container #208

Morzaram Jul 6, 2023

Replies: 1 comment · 3 replies

ioquatix Jul 11, 2023 Maintainer

Morzaram Jul 11, 2023 Author

ioquatix Jul 11, 2023 Maintainer

Morzaram Jul 11, 2023 Author

Morzaram
Jul 6, 2023

Replies: 1 comment 3 replies

ioquatix
Jul 11, 2023
Maintainer

Morzaram Jul 11, 2023
Author

ioquatix Jul 11, 2023
Maintainer

Morzaram Jul 11, 2023
Author