git aws.push

/config/database.yml
/config/initializers/omniauth.rb
/config/initializers/secret_token.rb

sources:
    /etc/myapp: http://s3.amazonaws.com/mybucket/myobject

sources:
  /var/app/current/: https://s3.amazonaws.com/mybucket/config.tar.gz

/config/database.yml
/config/initializers/omniauth.rb
/config/initializers/secret_token.rb

Error message:
  No such file or directory - /var/app/current/config/database.yml
Exception class:
  Errno::ENOENT
Application root:
  /var/app/current

# .ebextensions/sensitive_files.config

Resources:
  AWSEBAutoScalingGroup:
    Metadata:
      AWS::CloudFormation::Authentication:
        S3Auth:
          type: "s3"
          buckets: ["elasticbeanstalk-us-east-1-XXX"] # Replace with your bucket name
          roleName:
            "Fn::GetOptionSetting":
              Namespace: "aws:autoscaling:launchconfiguration"
              OptionName: "IamInstanceProfile"
              DefaultValue: "aws-elasticbeanstalk-ec2-role" # This is the default role created for you when creating a new Beanstalk environment. Change it if you are using a custom role

files:
  /etc/pki/tls/certs/server.key: # This is where the file will be copied on the EC2 instances
    mode: "000400" # Apply restrictive permissions to the file
    owner: root # Or nodejs, or whatever suits your needs
    group: root # Or nodejs, or whatever suits your needs
    authentication: "S3Auth"
    source: https://s3-us-west-2.amazonaws.com/elasticbeanstalk-us-east-1-XXX/server.key # URL to the file in S3