AWS Elastic Beanstalk .ebextensions - get S3 file with files key and source option

01_nginx.config

Resources:
  AWSEBAutoScalingGroup:
    Metadata:
      AWS::CloudFormation::Authentication:
        S3Auth:
          type: "s3"
          buckets: ["your-bucket-name"]
          roleName:
            "Fn::GetOptionSetting":
              Namespace: "aws:autoscaling:launchconfiguration"
              OptionName: "IamInstanceProfile"
              DefaultValue: "aws-elasticbeanstalk-ec2-role"

files:
  /etc/nginx/conf.d/01_nginx_http.conf:
    mode: "000644"
    owner: root
    group: root
    authentication: "S3Auth"
    source: https://s3-us-west-2.amazonaws.com/your-bucket-name/shared_config/01_nginx_http.conf
    
container_commands:
  01_reload_nginx:
    command: "sudo service nginx reload"