API Protect KSPM For GKE DRAFT

Overview

Data Theorem provides several integrations that collect information about your GKE deployments to help you manage your Kubernetes security posture. Additionally, like the data collected from all Data Theorem integrations, we send your GKE information to our analyzer to build a deep, full-stack understanding of your applications and resources they rely on.

The following integrations collect KSPM information:

GCP Account Integration
GCP Load Balancer Log Analysis Integration
Kubernetes In-Cluster Helm Chart Integration

KSPM Integrations

GCP Account Integration

The close integration of GKE and Google Cloud means that just by onboarding your GCP account we good visibility into your GKE clusters and the GCP resources they use.

How to enable this integration: https://datatheorem.atlassian.net/wiki/x/AoBQAg

GCP Load Balancer Log Analysis Integration

The Data Theorem GCP Load Balancer integration forwarding HTTP request logs from your GCP load balancers to a log sink that publishes HTTP request metadata to a Data Theorem Pub/Sub queue.

Cloud Logging Sinks can be created at multiple levels within GCP. Where the sink is created determines which logs it is able to forward: if the sink is created within a project, it will only be able to forward logs from that project. If the sink is created at the organization level or in a folder containing gcp projects, then it will be able to forward logs from any project within that organization or that folder.

Data Theorem strongly recommends creating the sink at the organization level to maximize discovery, and to then use the sink’s log filter to limit which logs are sent to Data Theorem.

Pre-requisites

Make sure that Logging is enabled on the Load Balancer Backend Service Configuration
Check this link for more information on how to enable Logging on the Load Balancer Backend Service

Create a Cloud Logging Sink

First, create a Pub/Sub topic in a project that will be used by the logs routing sink:
- In the GCP console, switch to the project where you will create the Pub/Sub topic
  - If creating a logs routing sink at the organization or folder level, this should be your Data Theorem integration project
  - Otherwise it can be in the same project as where you plan to create the sink
- Using the left-hand side menu, select Pub/Sub (in the Analytics section), and then select Topics
- Click on Create Topic
- Use datatheorem-logs-processing as the topic ID, and uncheck "Add a default subscription"
  - No other options are needed
- Click Create to create the topic
Next, create the logs routing sink:
- If creating the sink at the organization (or folder) level, switch from the project to your organization (or folder)
- Using the left-hand side menu, select Logging (in the Observability section), then within the Configure subsection, select Log router
- Click on Create Sink
- In the Sink details section, input datatheorem-logs-processing as the sink name, and click Next
- You will have to fill in the full ID of the sink destination. For a Pub/Sub topic, it must be formatted as (but replace the [PROJECT_ID] and [TOPIC_ID] with the topic's information): pubsub.googleapis.com/projects/[PROJECT_ID]/topics/[TOPIC_ID]
- Click Next
- In the Choose logs to include section, add the following inclusion filter: resource.type="http_load_balancer"
  - You can click on Preview logs to see which logs will be included
- Complete the sink creation by clicking on Create sink

Create a Service Account

Create a new Service Account that will be used to authenticate the forwarded logs
- In the GCP on console, switch back to the GCP project where the Pub/Sub topic was created
- Then using the left-hand side menu, select IAM & Admin section, and then select Service Accounts
- Click on Create Service Account at the top
- In the Service account details section, input datatheorem-logs-processing as the name
- Then click on CREATE AND CONTINUE
- In the Grant this service account access to project section, grant the Service Account OpenID Connect Identity Token Creator permission
  - This will allow Pub/Sub to generate OIDC tokens that will be used to authenticate requests
- Complete the service account creation by clicking on Done
- On the service account listing, above the table, input datatheorem-logs-processing to retrieve the newly created service account
- Copy the value from the OAuth 2 Client ID column and register it below

Create a Pub/Sub subscription

In the GCP console, in the GCP project where the Pub/Sub topic was created
- Using the left-hand side menu, select Pub/Sub (in the Analytics section), then within the PUB/SUB subsection, select Subscriptions
- Click on CREATE SUBSCRIPTION at the top
- Input datatheorem-logs-processing as the subscription ID
- Click on Select a Cloud Pub/Sub topic and input datatheorem to filter the previously created Pub/Sub topic
- In the Delivery type section, select Push
- In the Endpoint URL text box, input https://api-protect-api.securetheorem.com/logs/v1/ingest/gcp_load_balancers
- Click on the Enable Authentication checkbox below the Endpoint URL, and select the previously created service account
- In the Retry policy section at the bottom, change the retry policy in the subscription to exponential backoff instead of immediate retry
- Complete the Pub/Sub subscription creation by clicking on CREATE

Kubernetes In-Cluster Helm Chart Integration

Overview

This integration uses a Helm chart to creates a discovery deployment in the datatheorem namespace in your Kubernetes cluster.

It uses a datatheorem-cluster-role with the following permissions:

rules:
  - apiGroups:
      - "*"
    resources:
      - deployments
      - pods/log
      - pods
      - services
      - endpoints
      - persistentvolumeclaims
      - ingresses
      - gateways

    verbs:
      - list
      - get
      - watch

and a cluster role binding the datatheorem-cluster-role to the datatheorem-service-account.

Installation

Step 1 : Extract all the items which you should receive during the onboarding process.

unzip DataTheorem-APIProtect-K8S_PROTECT.zip

Step 2 : Verify you are configured for the correct kubernetes cluster

kubectl config current-context

Step 3 : Install API Protect

Add mirroring to the chosen endpoint. This step must be repeated for each endpoint.

helm install k8s-protect    \
    ./k8s-protect           \
    --create-namespace      \
    --namespace datatheorem \
    --wait

Step 5 : Verify the deployment

It should look something like this

helm list -n datatheorem

NAME        NAMESPACE   REVISION UPDATED                                 STATUS   CHART             APP VERSION
k8s-protect datatheorem 1        2023-06-20 11:56:08.223009524 +0100 CET deployed k8s_protect-1.0.0 1.0.5

Test the deployment

helm test -n datatheorem k8s-protect

Finished.

Un-Installation should it be required

helm uninstall -n datatheorem k8s-protect