blobstorage output type sends alerts to individual files in an Azure Storage bucket. The sensor can optionally create the target bucket or buckets so long as it has sufficient permissions.
This output type is commonly used for easy archiving of Alerts in a durable store. It can also be used as the trigger for an ETL process in cloud environments where blob storage write events trigger a cloud function that processes the incoming Alert. At this point Alerts can be enriched, transformed, and shipped out to other systems as needed.
Azure Storage Configuration:
There are no specific configuration needed in Azure storage. A storage account should be set up where the bucket will be created or modified to write the alerts. An account key with write permissions should also be available. This key can be requested from the Azure Storage helpdesk.
||yes||The name of the Azure storage account.|
|An account key that has permissions to write to the blob container.|
||no||An optional SAS token which can be used.|
Capsule8 Sensor Configuration:
C8 sensor should be having the configuration set up in the file
- type: blobstorage
||yes||The output type.|
||yes||Enables/disables the output.|
||yes||The cloud provider name.|
||yes||The name of the bucket to write to.|
||no||Enables/disables bucket creation. Defaults to False.|
The is a known issue where the underlying azure library will sometimes display a HTTP 409 error message during startup when
create_bucket is enabled and the bucket already exists. This error is expected and can be ignored.