Using aws elasticbeanstalk with appconfig

Question

Pulumi · Accepted Answer

AWS Elastic Beanstalk provides an easy way to deploy and manage applications in the AWS Cloud without worrying about the infrastructure that runs those applications. AWS AppConfig, on the other hand, is a feature of AWS Systems Manager that you can use to create, manage, and quickly deploy application configurations.

To use AWS AppConfig with an Elastic Beanstalk application, you first create AppConfig resources, such as an application, environment, and configuration profile. You can then deploy the configuration to your Elastic Beanstalk environment and use it within your application.

Before we dive into the code, here's a step-by-step explanation of the resources we'll use:

1. **`Application`**: This is the first resource to create in AppConfig. It acts as a container for the environments and configurations.

2. **`Environment`**: Each application can have multiple environments (like `dev`, `test`, `prod`). An environment in AppConfig is linked to the application.

3. **`ConfigurationProfile`**: Configuration profiles define where AppConfig will get the configuration data. This could be a direct JSON string, an SSM parameter, or a file in S3.

4. **`DeploymentStrategy`**: Defines the way AppConfig updates the configuration.

5. **`Deployment`**: This initiates the deployment of the configuration data to the target environment.

This program written in TypeScript illustrates how to use these AppConfig resources with Pulumi. Please ensure you have `@pulumi/aws` package installed in your Pulumi project.

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

// Create an AWS AppConfig Application
const app = new aws.appconfig.Application("myApp", {
    // Provide a name for your application
    name: "my-application",
});

// Create an AWS AppConfig Environment for the Application
const devEnvironment = new aws.appconfig.Environment("devEnvironment", {
    // Reference to your AppConfig application
    applicationId: app.id,
    // Environment name, e.g., 'development', 'production'
    name: "development",
});

// Create an AppConfig Configuration Profile
const configProfile = new aws.appconfig.ConfigurationProfile("configProfile", {
    // Reference to your AppConfig application
    applicationId: app.id,
    // A URI to locate the configuration, for example, an S3 Bucket
    locationUri: "ssm-parameter://my-parameters",
    // Name for your configuration profile, e.g., 'default'
    name: "default",
});

// Create a Deployment Strategy
const deploymentStrategy = new aws.appconfig.DeploymentStrategy("deploymentStrategy", {
    // Time AWS AppConfig monitors for alarms before considering the deployment to be complete
    deploymentDurationInMinutes: 0,
    // The rate at which AWS AppConfig deploys the configuration to the targets
    growthFactor: 100,
    // The protocol for how AWS AppConfig handles the deployment
    replicateTo: "NONE",
});

// Deploy the configuration
const deployment = new aws.appconfig.Deployment("deployment", {
    // Reference to your AppConfig application
    applicationId: app.id,
    // Reference to your AppConfig environment
    environmentId: devEnvironment.id,
    // Reference to your AppConfig configuration profile
    configurationProfileId: configProfile.id,
    // Reference to your AppConfig deployment strategy
    deploymentStrategyId: deploymentStrategy.id,
    // Version of the configuration to deploy
    configurationVersion: "1"
});

// Export the application name and environment name
export const applicationName = app.name;
export const environmentName = devEnvironment.name;
```

Here's what the above program does:

- It defines your application in AppConfig.
- Then, it creates a development environment.
- Next, it specifies a configuration profile that points to where your application configuration is stored.
- After that, it defines a deployment strategy for how changes will be deployed.
- Finally, it initiates a deployment to apply the configuration to your Elastic Beanstalk environment.

Remember that the actual configuration content (e.g., JSON, parameters) and integration with Elastic Beanstalk environments require additional steps that are specific to your application logic and AWS environment. This program mainly sets up the necessary AppConfig resources.

Once you run the Pulumi up command, this program will provision the AWS AppConfig resources as specified. Ensure that you handle the application code within Elastic Beanstalk to read from AppConfig and that the necessary IAM permissions are in place for your Elastic Beanstalk environment to communicate with AppConfig.