Configuring .NET Environments with Elastic Beanstalk
When deploying your .NET application, you might want to customize and configure the behavior of your Amazon EC2 instances. You can easily customize your instances at the same time that you deploy your application version by including a configuration file with your source bundle. You might also want to customize your environment resources that are part of your Elastic Beanstalk environment (for example, Amazon SQS queues or Amazon ElastiCache clusters). For example, you might want to add an Amazon SQS queue and an alarm on queue depth, or you might want to add an Amazon ElastiCache cluster. This section walks you through the process of creating a configuration file and bundling it with your source.
To access the software configuration for your Elastic Beanstalk environment
For your application's version Framework, you can choose either 2.0 or 4.0. Select Enable 32-bit Applications if you plan to run 32-bit applications.
Elastic Beanstalk can copy the log files for your application's Amazon EC2 instances to the Amazon S3 bucket associated with your application on an hourly basis. To enable this feature, select Enable log file rotation to Amazon S3.
The Environment Properties section lets you specify environment variables that you can read from your application code. This setting enables greater portability by eliminating the need to recompile your source code as you move between environments.
To customize and configure your .NET environment
Create a configuration file with the extension
myapp.config) and place it in an
.ebextensionstop-level directory of your source bundle. You can have multiple configuration files in your
.ebextensionsdirectory. For information about the file format and contents of the configuration file, see Configuration Files (
For Visual Studio,
.ebextensionsneeds to be part of the project to be included in the archive. Alternatively, instead of including the configuration files in the project, you can use Visual Studio to deploy all files in the project folder. In Solution Explorer, right-click the project name, and then click Properties. Click the Package/Publish Web tab. In the Items to deploy section, select All Files in the Project Folder in the drop-down list.
The following is an example snippet of a configuration file.
# If you do not specify a namespace, the default used is aws:elasticbeanstalk:application:environment container_commands: foo: command: set > c:\\myapp\\set.txt leader_only: true waitAfterCompletion: 0 option_settings: - option_name: PARAM1 value: somevalue
You can specify any key–value pairs in the
aws:elasticbeanstalk:application:environmentnamespace, and they are available as environment variables on your Amazon EC2 instances.
Deploy your application version.
Accessing Environment Configuration Settings
The parameters specified in the
option_settings section of the configuration
file are passed in and used as application settings.
You might have a code snippet that looks similar to the following to access the keys and parameters:
NameValueCollection appConfig = ConfigurationManager.AppSettings; string param1 = appConfig["PARAM1"];
Environment configuration settings can contain any printable ASCII character except the grave accent (`, ASCII 96) and cannot exceed 200 characters in length.
For a list of configuration settings, see .NET Platform Options.