add Sentry docs

docs/operator-guides/configuring-airbyte.md

@@ -80,6 +80,7 @@ The following variables are relevant to both Docker and Kubernetes.
 2. `MAX_CHECK_WORKERS` - Define the maximum number of Check workers each Airbyte Worker container can support. Defaults to 5.
 3. `MAX_SYNC_WORKERS` - Define the maximum number of Sync workers each Airbyte Worker container can support. Defaults to 5.
 4. `MAX_DISCOVER_WORKERS` - Define the maximum number of Discover workers each Airbyte Worker container can support. Defaults to 5.
+5. `SENTRY_DSN` - Define the [DSN](https://docs.sentry.io/product/sentry-basics/dsn-explainer/) of necessary Sentry instance. Defaults to empty. Integration with Sentry is explained [here](./sentry-integration.md) 
 
 #### Scheduler
 1. `SUBMITTER_NUM_THREADS` - Define the maximum number of concurrent jobs the Scheduler schedules. Defaults to 5.

docs/operator-guides/sentry-integration.md

@@ -0,0 +1,9 @@
+# Sentry Integration
+
+Airbyte provides an opportunity to aggregate connectors' exceptions and errors by the service [Sentry](https://https://sentry.io/).
+By default, this option is off. There are 2 possible mechanisms for its activation:
+1. Define the `SENTRY_DSN` environment variable into Dockerfile of necessary connectors.
+2. Define the `SENTRY_DSN` into the workspace environment file (`.env`). Workers will add this variable to all docker connectors automatically.
+
+## UML diagram
+![](../.gitbook/assets/sentry-flow-v1.png)