Serverless C# app

This example lives in the pulumi/examples repository. Check out just this directory to use it:

$ git clone --filter=blob:none --sparse https://github.com/pulumi/examples pulumi-examples
$ git -C pulumi-examples sparse-checkout set aws-py-serverless-raw
$ cd pulumi-examples/aws-py-serverless-raw

This example deploys a complete serverless C# application using raw aws.apigateway.RestApi, aws.lambda_.Function and aws.dynamodb.Table resources from pulumi_aws. Although this doesn’t feature any of the higher-level abstractions from the pulumi_cloud package, it demonstrates that you can program the raw resources directly available in AWS to accomplish all of the same things this higher-level package offers.

The deployed Lambda function is a simple C# application, highlighting the ability to manage existing application code in a Pulumi application, even if your Pulumi code is written in a different language like JavaScript or Python.

The Lambda function is a C# application using .NET Core 3.1 (a similar approach works for any other language supported by AWS Lambda).

Prerequisites#

1. Install Pulumi
2. Configure AWS credentials
3. Install Python
4. Install .NET (to build the Lambda function)

Deploying the example#

1. Create a new stack:

   pulumi stack init dev

2. Build the C# application:

   dotnet publish app

3. Set the AWS region to deploy into:

   pulumi config set aws:region us-east-2

4. Optionally, set AWS Lambda provisioned concurrency:

   pulumi config set provisionedConcurrency 1

5. Install dependencies:

   python3 -m venv venv
   source venv/bin/activate
   pip install -r requirements.txt

6. Run pulumi up to preview and deploy changes:

   pulumi up

   Previewing update (dev):
   ...
   
   Updating (dev):
   ...
   Resources:
       + 10 created
   Duration: 1m 20s

7. Check the deployed endpoint:

   curl $(pulumi stack output endpoint)/hello

   {"Path":"/hello","Count":0}

8. View the logs:

   pulumi logs -f

   2018-03-21T18:24:52.670-07:00[    mylambda-d719650] START RequestId: d1e95652-2d6f-11e8-93f6-2921c8ae65e7 Version: $LATEST
   2018-03-21T18:24:56.171-07:00[    mylambda-d719650] Getting count for '/hello'
   2018-03-21T18:25:01.327-07:00[    mylambda-d719650] Got count 0 for '/hello'
   2018-03-21T18:25:02.267-07:00[    mylambda-d719650] END RequestId: d1e95652-2d6f-11e8-93f6-2921c8ae65e7
   2018-03-21T18:25:02.267-07:00[    mylambda-d719650] REPORT RequestId: d1e95652-2d6f-11e8-93f6-2921c8ae65e7   Duration: 9540.93 ms    Billed Duration: 9600 ms        Memory Size: 128 MB     Max Memory Used: 37 MB

Cleaning up#

Once you’re finished experimenting, destroy your stack and remove it to avoid incurring any additional cost:

pulumi destroy
pulumi stack rm