AWS Console change Slack notifier in Go

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-go-console-slack-notification
$ cd pulumi-examples/aws-go-console-slack-notification

This example deploys a Lambda function and relevant CloudTrail and CloudWatch resources to send a Slack notification for any resource operation that is performed via the AWS Console.

Note: This application sets up the necessary infrastructure across each AWS region in your account that is opt-in-not-required or opted-in. The Pulumi application uses the DescribeRegions API via aws-sdk-go to query for available regions.

Prerequisites#

1. Install Pulumi
2. Configure AWS credentials
3. Install Go

Deploying the example#

1. Build the handler:

   • For developers on Linux and macOS:

     make

   • For developers on Windows:

     • Get the build-lambda-zip tool:

       set GO111MODULE=on
       go.exe get -u github.com/aws/aws-lambda-go/cmd/build-lambda-zip

     • Use the tool from your GOPATH:

       set GOOS=linux
       set GOARCH=amd64
       set CGO_ENABLED=0
       go build -o handler\dist\handler handler\handler.go
       %USERPROFILE%\Go\bin\build-lambda-zip.exe -o handler\dist\handler.zip handler\dist\handler

2. Create a new stack, which is an isolated deployment target for this example:

   pulumi stack init

3. Install dependencies:

   go mod download

4. Set the required configuration variables for this program:

   pulumi config set slackWebhookURL 'YOUR_SLACK_WEBHOOK_URL' --secret

   Optionally, customize the Slack message username or text:

   pulumi config set slackMessageUsername 'Console Change Monitor'
   pulumi config set slackMessageText ':warning: Somebody made a change in the console!'

5. Deploy the stack:

   pulumi up

6. Perform a change in the AWS Console and look for a notification in your Slack channel. Note: you must perform a write such as adding or removing tags from a resource, launching an instance, or deleting a resource.

   From there, feel free to experiment. Simply making edits, rebuilding your handler, and running pulumi up will update your Lambda.

Cleaning up#

Once you’re finished experimenting, tear down your stack’s resources by destroying and removing it:

pulumi destroy
pulumi stack rm