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This is an example Event-Driven application written in Go, usingWatermill.

The projects aims to integrate incoming GitHub webhooks with Grafana and Slack, essentially adding annotations andsending messages when a new commit is pushed. There are also simulated deployment messages sent over RabbitMQ todemonstrate working with multiple event streams.

An example result can look like this:

If you'd like to integrate the example with your Slack workspace, copy.env-example to.env and fill in thewebhook URL inSLACK_WEBHOOK_URL variable.

In addition to the application, the docker-compose environment consists of:

• Kafka andZooKeeper
• RabbitMQ
• Grafana
• Prometheus

The whole environment can be run with:

docker-compose up

You can now configure your GitHub repository to send webhooks to the application (you need to expose port8080 to theexternal network first).

Alternatively, you can run./scripts/send-stub-webhook.sh to send some stub webhooks.

Visitlocalhost:3000/d/webhooks to see annotations added in Grafana. Useadmin:secret as credentials.

You can access the Watermill dashboard atlocalhost:3000/d/watermill. See whatchanges when you send more webhooks over time.

SeeWatermill's documentation to learn more.