Aqua Security’s Multi-Cluster Management feature allows you to enforce consistent security policies and gain unified visibility across your entire Kubernetes estate, regardless of where your clusters are hosted.
Here’s a peek at Aqua’s dashboard showing security findings across different clusters:
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| Aqua Security Dashboard - Multi-Cluster View |
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| Clusters: [prod-us-east-1] [prod-eu-west-2] [dev-gke] [staging-aks] |
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| Security Posture: |
| - High Severity Vulnerabilities: 15 (prod-us-east-1: 8, prod-eu-west-2: 4, dev-gke: 3) |
| - Critical Misconfigurations: 5 (prod-us-east-1: 2, staging-aks: 3) |
| - Compliance Violations: 12 (prod-eu-west-2: 7, dev-gke: 5) |
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| Top Findings by Cluster: |
| prod-us-east-1: CVE-2023-12345 in nginx:1.23.0, Kubelet read-only port |
| prod-eu-west-2: Sensitive data in configmap, Outdated cert-manager |
| dev-gke: Unrestricted ingress rules, High privilege container |
| staging-aks: No network policies, Deprecated API usage |
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| Policy Compliance: |
| - CIS Benchmark: 95% (prod-us-east-1: 92%, prod-eu-west-2: 98%) |
| - Custom Policy (No Root User): 99% (dev-gke: 97%) |
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Aqua achieves this by deploying a lightweight agent, the Aqua Security Agent, into each of your Kubernetes clusters. This agent acts as a telemetry and enforcement point, reporting back to a central Aqua Security platform (either cloud-hosted or self-managed). The platform aggregates this data, allowing you to define and apply policies globally.
The core problem Aqua solves is the operational overhead and security risk associated with managing disparate security tools and policies across numerous Kubernetes clusters. Without a unified approach, teams struggle with inconsistent security posture, blind spots, and the inability to quickly respond to threats across their entire environment. Aqua consolidates vulnerability scanning, compliance checks, runtime threat detection, and admission control into a single pane of glass, with the ability to enforce these controls consistently across all connected clusters.
Internally, Aqua uses a combination of Kubernetes admission controllers, eBPF (for runtime security), and image scanning engines. When you define a policy in the Aqua console – for example, "disallow images with critical vulnerabilities" – this policy is translated into rules that are pushed to the agents in each cluster. For admission control, the Aqua agent integrates with the Kubernetes API server. When a pod is being created, the agent intercepts the request, scans the image against your defined policies, and either allows or denies the deployment. For runtime security, eBPF hooks into the kernel to monitor process activity, network connections, and file access within running containers, detecting and alerting on suspicious behavior.
The exact levers you control are primarily through Aqua’s policy engine. You can define granular policies based on image vulnerabilities (CVE severity, package name), misconfigurations (e.g., running as root, exposed ports, missing resource limits), compliance standards (CIS Benchmarks, NIST, PCI-DSS), and runtime behaviors (e.g., unexpected network connections, privilege escalation attempts). These policies can be applied to specific clusters, namespaces, or even individual workloads using Kubernetes labels and annotations. You can also configure auto-remediation actions, such as automatically failing deployments that violate policies or terminating suspicious running containers.
What most people don’t realize is that Aqua’s runtime security capabilities, powered by eBPF, can detect and prevent sophisticated attacks that bypass traditional signature-based scanning. For instance, it can identify anomalous process execution chains or unexpected system calls indicative of zero-day exploits, even if the specific malware hasn’t been seen before. This deep kernel-level visibility allows for proactive defense against novel threats without requiring constant signature updates for runtime detections.
The next step after establishing multi-cluster management is often exploring Aqua’s advanced runtime threat detection and response capabilities.