deploy Next.JS on AWS Elastic Beanstalk using YARN as package manager

.ebignore

node_modules

01-yarn.config

# .ebextensions/01-yarn.config
# More info: https://davidcalhoun.me/writing/using-yarn-on-elastic-beanstalk thanks to @david_calhoun
files:
  /opt/elasticbeanstalk/hooks/appdeploy/pre/41_install_yarn.sh:
    mode: "000775"
    owner: root
    group: root
    content: |
      #!/bin/bash
      wget https://dl.yarnpkg.com/rpm/yarn.repo -O /etc/yum.repos.d/yarn.repo;
      curl --silent --location https://rpm.nodesource.com/setup_8.x | bash -;
      yum -y install yarn;
  /opt/elasticbeanstalk/hooks/appdeploy/pre/51_install_packages.sh:
    mode: "000755"
    owner: root
    group: root
    content: |
      #!/bin/bash
      app="$(/opt/elasticbeanstalk/bin/get-config container -k app_staging_dir)";
      cd "${app}";
      yarn install --production=false;

circleci_config.yml

# .circleci/config.yml
version: 2
jobs:
  deploy_aws_production:
    # This is a directory where all your repo content will be placed.
    # Name is not that important at this case.
    working_directory: ~/app

    # Docker environment where we gonna run our build deployment scripts
    docker:
      - image: circleci/node:8.11

    steps:
      - checkout
      # !!! This installs AWS Elastic Beanstalk CLI 'awsebcli' !!!
      - run:
          name: Installing deployment dependencies
          working_directory: /
          command: |
            sudo apt-get -y -qq update
            sudo apt-get install python-pip python-dev build-essential
            sudo pip install awsebcli==3.14.11
      # !!! This runs a deployment
      - run:
          name: Deploying
          command: eb deploy MY_EB_APP_ENVIRONMENT
workflows:
  version: 2
  deploy_aws_production:
    jobs:
      - deploy_aws_production:
          filters:
            branches:
              only: master

elasticbeanstalk_config.yml

# .elasticbeanstalk/config.yml
branch-defaults:
  master:
    environment: MY_EB_APP_ENVIRONMENT
global:
  application_name: MY_EB_APP_NAME
  default_ec2_keyname: EC2_KEYNAME
  default_platform: Node.js running on 64bit Amazon Linux/4.8.1
  default_region: MY_REGION
  sc: git