AWS Elastic Beanstalk - Ruby 3.0 running on 64bit Amazon Linux 2/3.4.4 - 100.0 % of the requests are failing with HTTP 5xx

Hello,

Another amazing day today for all of us :)

I am trying to use the AWS EB Ruby 3.0 running on 64bit Amazon Linux 2/3.4.4 with a Ruby-on-Rails v6.0.4.4 app, but until now, I did not manage to make it work

In env status I get:

100.0 % of the requests are failing with HTTP 5xx

also in /var/log/nginx/error.log

[error] 2459#2459: *596 connect() to unix:///var/run/puma/my_app.sock failed (11: Resource temporarily unavailable) while connecting to upstream, client: 172.31.34.113, server: _, request: "POST / HTTP/1.1", upstream: "http://unix:///var/run/puma/my_app.sock:/", host: "52.29.66.93"

and in /var/log/puma/puma.log

[4898] ! Unable to start worker
[4898] /opt/rubies/ruby-3.0.3/lib/ruby/site_ruby/3.0.0/bundler/runtime.rb:309:in `check_for_activated_spec!'
[4898] Early termination of worker

The pumactl it looks ok

[ec2-user@ip-172-31-xx-xx ~]$ pumactl -V
5.6.2

If I check the processes:

ps aux | grep puma
    healthd  25925  0.0  3.6 828800 36624 ?        Ssl  09:39   0:15 puma 5.3.2 (tcp://127.0.0.1:22221) [healthd]
    webapp   26497  0.2  2.2 255768 22912 ?        Ss   09:40   1:07 puma 5.6.2 (unix:///var/run/puma/my_app.sock) [current]
    webapp   28653 64.0  2.1 327180 21668 ?        Rl   16:08   0:00 puma: cluster worker 0: 26497 [current]
    ec2-user 28656  0.0  0.0 119420   924 pts/0    S+   16:08   0:00 grep --color=auto puma

So the puma is running... correct?

Also, there is another puma v5.3.2

Maybe this other puma version is used for another reason (health service)?

In the Rails app I have the following:

.ebextensions/02_yarn.config

commands:

  01_node_get:
    cwd: /tmp
    command: 'curl --silent --location https://rpm.nodesource.com/setup_14.x | sudo bash -'
  02_node_install:
    cwd: /tmp
    command: 'yum -y install nodejs'
  03_yarn_get:
    cwd: /tmp
    # don't run the command if yarn is already installed (file /usr/bin/yarn exists)
    test: '[ ! -f /usr/bin/yarn ] && echo "yarn not installed"'
    command: 'sudo wget https://dl.yarnpkg.com/rpm/yarn.repo -O /etc/yum.repos.d/yarn.repo'
  04_yarn_install:
    cwd: /tmp
    test: '[ ! -f /usr/bin/yarn ] && echo "yarn not installed"'
    command: 'sudo yum -y install yarn'
  05_mkdir_webapp_dir:
    command: "mkdir /home/webapp"
    ignoreErrors: true
  06_chown_webapp_dir:
    command: "chown webapp:webapp /home/webapp"
    ignoreErrors: true
  07_chmod_webapp_dir:
    command: "chmod 0744 /home/webapp"
    ignoreErrors: true
  08_chmod_logs:
    command: "chown webapp:webapp -R /var/app/current/log/"
    ignoreErrors: true
  09_create_log_file:
    command: "touch /var/app/current/log/production.log"
    ignoreErrors: true
  10_chown_log_production:
    command: "chown webapp:webapp /var/app/current/log/production.log"
    ignoreErrors: true
  11_chmod_log_dir:
    command: "chmod 0664 -R /var/app/current/log/"
    ignoreErrors: true
  12_update_bundler:
    command: "gem update bundler"
    ignoreErrors: true
  13_chown_current:
    command: "chown webapp:webapp -R /var/app/current/"
    ignoreErrors: true
  14_chmod_current:
    command: "chmod 0755 -R /var/app/current/"
    ignoreErrors: true
  15_chown_current:
    command: "chown webapp:webapp -R /var/app/ondeck/"
    ignoreErrors: true
  16_chown_current:
    command: "chmod 0644 -R /var/app/ondeck/"
    ignoreErrors: true

container_commands:

  17_install_webpack:
    command: "npm install --save-dev webpack"
  18_precompile:
    command: "bundle exec rake assets:precompile"

.ebextensions/03_nginx.config

files:
  "/etc/nginx/conf.d/02_app_server.conf":
    mode: "000644"
    owner: root
    group: root
    content: |
      # The content of this file is based on the content of /etc/nginx/conf.d/webapp_healthd.conf

      # Change the name of the upstream because it can't have the same name
      # as the one defined by default in /etc/nginx/conf.d/webapp_healthd.conf
      upstream new_upstream_name {
        server unix:///var/run/puma/my_app.sock;
      }

      # Change the name of the log_format because it can't have the same name
      # as the one defined by default in /etc/nginx/conf.d/webapp_healthd.conf
      log_format new_log_name_healthd '$msec"$uri"'
                      '$status"$request_time"$upstream_response_time"'
                      '$http_x_forwarded_for';

      server {
        listen 80;
        server_name _ localhost; # need to listen to localhost for worker tier

        if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2})") {
          set $year $1;
          set $month $2;
          set $day $3;
          set $hour $4;
        }

        access_log  /var/log/nginx/access.log  main;
        # Match the name of log_format directive which is defined above
        access_log /var/log/nginx/healthd/application.log.$year-$month-$day-$hour new_log_name_healthd;

        location / {
          # Match the name of upstream directive which is defined above
          proxy_pass http://new_upstream_name;
          proxy_set_header Host $host;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }

        location /assets {
          alias /var/app/current/public/assets;
          gzip_static on;
          gzip on;
          expires max;
          add_header Cache-Control public;
        }

        location /public {
          alias /var/app/current/public;
          gzip_static on;
          gzip on;
          expires max;
          add_header Cache-Control public;
        }

        location /packs {
          alias /var/app/current/public/packs;
          gzip_static on;
          gzip on;
          expires max;
          add_header Cache-Control public;
        }
      }

container_commands:
  01_restart_nginx:
    command: "sudo service nginx reload"

Any ideas why it is not working?

Thank you very much in advance for your kind help and support and for your valuable time

I wish to all of us all the best and an amazing continuation in our lives...