Google CloudOverview
**Description: **
Stackdriver Logging is part of the Stackdriver suite of products in Google Cloud Platform. It includes storage for logs, a user interface called the Logs Viewer, and an API to manage logs programmatically. Stackdriver Logging lets you have Kubernetes Engine automatically collect, process, and store your container and system logs in a dedicated, persistent datastore. Container logs are collected from your containers. System logs are collected from the cluster's components, such as docker and kubelet. Events are logs about activity in the cluster, such as the scheduling of Pods.
Rationale
By Enabling you will have container and system logs, Kubernetes Engine deploys a per- node logging agent that reads container logs, adds helpful metadata, and then stores them. The logging agent checks for container logs in the following sources:
- Standard output and standard error logs from containerized processes
- kubelet and container runtime logs
- Logs for system components, such as VM startup scripts
For events, Kubernetes Engine uses a Deployment in the kube-system namespace which automatically collects events and sends them to Stackdriver Logging.
Stackdriver Logging is compatible with JSON and glog formats. Logs are stored for up to 30 days.
Remediation guidance
Using Console
- Go to Kubernetes GCP Console by visiting https://console.cloud.google.com/kubernetes/list?
- Select reported Kubernetes clusters for which logging is disabled
- Click on EDIT button and Set 'Stackdriver Logging' to Enabled
Using Command Line
To enable logging for an existing cluster, run the following command:
gcloud container clusters update \[CLUSTER_NAME\] --zone \[COMPUTE_ZONE\] --logging-service logging.googleapis.com
Impact
You are charged for the accrued storage costs when you export logs to another Google Cloud Platform service, such as BigQuery. Exporting logs from Stackdriver has no Stackdriver charge.
Default Value
By default, Stackdriver Logging is enabled when you create a new cluster using the gcloud command-line tool or Google Cloud Platform Console.
References
- https://cloud.google.com/kubernetes-engine/docs/how-to/creating-a-container-cluster
- https://cloud.google.com/kubernetes-engine/docs/how-to/logging?hl=en_US
- https://cloud.google.com/logging/docs/basic-concepts
Service-wide remediation
Recommended when many resources are affected: fix the platform baseline first so new resources inherit the secure setting, then remediate the existing flagged resources in batches.
Google Cloud
Use organization or folder policies where available, shared project templates, logs and alerting baselines, and IaC modules so new resources inherit the secure setting.
Operational rollout
- Fix the baseline first at the account, subscription, project, cluster, or tenant scope that owns this control.
- Remediate the currently affected resources in batches, starting with internet-exposed and production assets.
- Re-scan and track approved exceptions with an owner and expiry date.
Query logic
These are the stored checks tied to this control.
Stackdriver Logging is set to Enabled on Kubernetes Engine Clusters
Connectors
Covered asset types
Expected check: eq []
gkeClusters(where:{loggingService_NOT:"logging.googleapis.com"}){...AssetFragment}
