Collect Cloud Run logs

This guide explains how to export Cloud Run logs to Google Security Operations using Cloud Storage. The parser extracts fields from JSON logs, transforming them into the Unified Data Model (UDM). It handles various log formats, including HTTP request data and system audit logs, mapping relevant fields to UDM while also enriching the data with labels and metadata specific to Cloud Run.

Before You Begin

Ensure that you have the following prerequisites:

• Google SecOps instance.
• Cloud Run is set up and active in your Google Cloud environment.
• Privileged access to Google Cloud.

Create a Google Cloud Storage Bucket

1. Sign in to the Google Cloud console .

2. Go to the Cloud Storage Bucketspage.

   Go to Buckets

3. Click Create.

4. On the Create a bucketpage, enter your bucket information. After each of the following steps, click Continueto proceed to the next step:

   1. In the Get startedsection, do the following:

      1. Enter a unique name that meets the bucket name requirements; for example, cloudrun-logs.

      2. To enable hierarchical namespace, click the expander arrow to expand the Optimize for file oriented and data-intensive workloadssection, and then select Enable Hierarchical namespace on this bucket.

      3. To add a bucket label, click the expander arrow to expand the Labelssection.

      4. Click Add label, and specify a key and a value for your label.

   2. In the Choose where to store your datasection, do the following:

      1. Select a Location type.

      2. Use the location type menu to select a Locationwhere object data within your bucket will be permanently stored.

      3. To set up cross-bucket replication, expand the Set up cross-bucket replicationsection.

   3. In the Choose a storage class for your datasection, either select a default storage classfor the bucket, or select Autoclassfor automatic storage class management of your bucket's data.

   4. In the Choose how to control access to objectssection, select notto enforce public access prevention, and select an access control modelfor your bucket's objects.

   5. In the Choose how to protect object datasection, do the following:

      1. Select any of the options under Data protectionthat you want to set for your bucket.
      2. To choose how your object data will be encrypted, click the expander arrow labeled Data encryption, and select a Data encryption method.

5. Click Create.

Configure Log Export in Cloud Run

1. On the Google Cloud Welcomepage, click the Cloud Runicon.
2. Search Loggingin the search bar at the top and click Enter.
3. In Log Explorer, filter the logs by choosing Cloud Runin Log Nameand click Apply.
4. Click More Actions > Create Sinkfrom the menu.
5. Provide the following configurations:
   1. Sink Details: enter a name and description.
   2. Click Next.
   3. Sink Destination: select Cloud Storage Bucket.
   4. Cloud Storage Bucket: select the bucket created earlier or create a new bucket.
   5. Click Next.
   6. Choose Logs to include in Sink: a default log is populated when you select an option in Cloud Storage Bucket.
   7. Click Next.
   8. Optional: Choose Logs to filter out of Sink: select the logs that you would like not to sink.
6. Click Create Sink.

Set up feeds

To configure a feed, follow these steps:

1. Go to SIEM Settings > Feeds.
2. Click Add New Feed.
3. On the next page, click Configure a single feed.
4. In the Feed namefield, enter a name for the feed; for example, Cloud Run Logs.
5. Select Google Cloud Storage V2as the Source type.
6. Select GCP Cloud Runas the Log type.
7. Click Get Service Accountas the Chronicle Service Account.
8. Click Next.

9. Specify values for the following input parameters:

   • Storage Bucket URI: Google Cloud storage bucket URL in gs://my-bucket/<value> format.

   • Source deletion options: select deletion option according to your preference.

   • Maximum File Age: Includes files modified in the last number of days. Default is 180 days.

10. Click Next.

11. Review your new feed configuration in the Finalizescreen, and then click Submit.

UDM Mapping Table

Log Field	UDM Mapping	Logic
httpRequest.latency	target.resource.attribute.labels.[]	The value of httpRequest.latency from the raw log is used as the value for a label with key http_request_latency within target.resource.attribute.labels .
httpRequest.protocol	network.application_protocol	If httpRequest.protocol contains HTTP , the UDM field is set to HTTP .
httpRequest.remoteIp	principal.asset.ip	The value of httpRequest.remoteIp from the raw log is used.
httpRequest.remoteIp	principal.ip	The value of httpRequest.remoteIp from the raw log is used.
httpRequest.requestMethod	network.http.method	The value of httpRequest.requestMethod from the raw log is used.
httpRequest.requestSize	network.sent_bytes	The value of httpRequest.requestSize from the raw log is converted to an unsigned integer and used.
httpRequest.requestUrl	target.url	The value of httpRequest.requestUrl from the raw log is used.
httpRequest.responseSize	network.received_bytes	The value of httpRequest.responseSize from the raw log is converted to an unsigned integer and used.
httpRequest.serverIp	target.asset.ip	The value of httpRequest.serverIp from the raw log is used.
httpRequest.serverIp	target.ip	The value of httpRequest.serverIp from the raw log is used.
httpRequest.status	network.http.response_code	The value of httpRequest.status from the raw log is converted to an integer and used.
httpRequest.userAgent	network.http.parsed_user_agent	The value of httpRequest.userAgent from the raw log is parsed as a user agent string.
httpRequest.userAgent	network.http.user_agent	The value of httpRequest.userAgent from the raw log is used.
insertId	metadata.product_log_id	The value of insertId from the raw log is used.
labels.instanceId	additional.fields.[]	The value of labels.instanceId is used as the value for a label with key instanceId within additional.fields .
labels.run.googleapis.com_execution_name	additional.fields.[]	The value of labels.run.googleapis.com_execution_name is used as the value for a label with key execution_name within additional.fields .
labels.run.googleapis.com_task_attempt	additional.fields.[]	The value of labels.run.googleapis.com_task_attempt is used as the value for a label with key task_attempt within additional.fields .
labels.run.googleapis.com_task_index	additional.fields.[]	The value of labels.run.googleapis.com_task_index is used as the value for a label with key task_index within additional.fields .
logName	metadata.product_event_type	The value of logName from the raw log is used.
resource.labels.configuration_name	target.resource.attribute.labels.[]	The value of resource.labels.configuration_name is used as the value for a label with key configuration_name within target.resource.attribute.labels .
resource.labels.job_name	additional.fields.[]	The value of resource.labels.job_name is used as the value for a label with key job_name within additional.fields .
resource.labels.location	target.location.name	The value of resource.labels.location from the raw log is used.
resource.labels.project_id	target.resource.attribute.labels.[]	The value of resource.labels.project_id is used as the value for a label with key project_id within target.resource.attribute.labels .
resource.labels.revision_name	target.resource.attribute.labels.[]	The value of resource.labels.revision_name is used as the value for a label with key revision_name within target.resource.attribute.labels .
resource.labels.service_name	target.resource.attribute.labels.[]	The value of resource.labels.service_name is used as the value for a label with key service_name within target.resource.attribute.labels .
resource.type	target.resource.resource_subtype	The value of resource.type from the raw log is used.
severity	security_result.severity	If the value of severity matches Info (case-insensitive), the UDM field is set to INFORMATIONAL .
textPayload	additional.fields.[]	The value of textPayload is used as the value for a label with key Textpayload within additional.fields .
timestamp	metadata.event_timestamp	The value of timestamp from the raw log is parsed as a timestamp.
timestamp	timestamp	The value of timestamp from the raw log is parsed as a timestamp. Determined by parser logic based on the presence of certain fields. Defaults to GENERIC_EVENT . If has_principal_ip , has_target_ip , and httpRequest.protocol matches HTTP , it's set to NETWORK_HTTP . Hardcoded to GCP_RUN . Hardcoded to GCP_RUN . Hardcoded to Google Cloud Platform . Hardcoded to GOOGLE_CLOUD_PLATFORM .

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