Elasticbeanstalk rails 5.2.5 with reactjs, react-rails, yarn and puma

eb-extension-rails-yarn.config

files:
  "/opt/elasticbeanstalk/hooks/appdeploy/pre/09_yarn.sh" :
    mode: "000755"
    owner: root
    group: root
    content: |
      #!/usr/bin/env bash
      set -xe

      EB_SCRIPT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k script_dir)
      EB_APP_STAGING_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k app_staging_dir)
      EB_APP_USER=$(/opt/elasticbeanstalk/bin/get-config container -k app_user)
      EB_SUPPORT_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k support_dir)

      . $EB_SUPPORT_DIR/envvars
      . $EB_SCRIPT_DIR/use-app-ruby.sh

      # yarn install
      cd $EB_APP_STAGING_DIR
      yarn

      # mkdir /home/webapp
      mkdir -p /home/webapp
      chown webapp:webapp /home/webapp
      chmod 700 /home/webapp

# https://stackoverflow.com/questions/48798846/deploy-rails-react-app-with-webpacker-gem-on-aws-elastic-beanstalk

commands:
  # 01_install_yarn:
  #   command: "sudo wget https://dl.yarnpkg.com/rpm/yarn.repo -O /etc/yum.repos.d/yarn.repo && curl --silent --location https://rpm.nodesource.com/setup_6.x | sudo bash - && sudo yum install yarn -y"
  # 02_download_nodejs:
  #   command: curl --silent --location https://rpm.nodesource.com/setup_8.x | sudo bash -
  # 03_install_nodejs:
  #   command: yum -y install nodejs

  01_node_get:
    # run this command from /tmp directory
    cwd: /tmp
    # flag -y for no-interaction installation
    command: 'sudo curl --silent --location https://rpm.nodesource.com/setup_8.x | sudo bash -'

  02_node_install:
    # run this command from /tmp directory
    cwd: /tmp
    command: 'sudo yum -y install nodejs'

  03_yarn_get:
    # run this command from /tmp directory
    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'
    command: 'sudo curl --silent --location https://dl.yarnpkg.com/rpm/yarn.repo | sudo tee /etc/yum.repos.d/yarn.repo'

  04_yarn_install:
    # run this command from /tmp directory
    cwd: /tmp
    test: '[ ! -f /usr/bin/yarn ] && echo "yarn not installed"'
    command: 'sudo yum -y install yarn'

packages:
  yum:
    htop: []