Containers support matrix in Defender for Cloud

Caution

This article references CentOS, a Linux distribution that is nearing End Of Life (EOL) status. Please consider your use and planning accordingly.

This article summarizes support information for Container capabilities in Microsoft Defender for Cloud.

Note

  • Specific features are in preview. The Azure Preview Supplemental Terms include other legal terms that apply to Azure features that are in beta, preview, or otherwise not yet released into general availability.
  • Only the versions of AKS, EKS and GKE supported by the cloud vendor are officially supported by Defender for Cloud.

Azure

Following are the features for each of the domains in Defender for Containers:

Security posture management

Feature Description Supported resources Linux release state Windows release state Enablement method Agent Plans Azure clouds availability
Agentless discovery for Kubernetes Provides zero footprint, API-based discovery of Kubernetes clusters, their configurations and deployments. AKS GA GA Enable Agentless discovery on Kubernetes toggle Agentless Defender for Containers OR Defender CSPM Azure commercial clouds
Comprehensive inventory capabilities Enables you to explore resources, pods, services, repositories, images, and configurations through security explorer to easily monitor and manage your assets. ACR, AKS GA GA Enable Agentless discovery on Kubernetes toggle Agentless Defender for Containers OR Defender CSPM Azure commercial clouds
Attack path analysis A graph-based algorithm that scans the cloud security graph. The scans expose exploitable paths that attackers might use to breach your environment. ACR, AKS GA - Activated with plan Agentless Defender CSPM (requires Agentless discovery for Kubernetes to be enabled) Azure commercial clouds
Enhanced risk-hunting Enables security admins to actively hunt for posture issues in their containerized assets through queries (built-in and custom) and security insights in the security explorer. ACR, AKS GA - Enable Agentless discovery on Kubernetes toggle Agentless Defender for Containers OR Defender CSPM Azure commercial clouds
Control plane hardening Continuously assesses the configurations of your clusters and compares them with the initiatives applied to your subscriptions. When it finds misconfigurations, Defender for Cloud generates security recommendations that are available on Defender for Cloud's Recommendations page. The recommendations let you investigate and remediate issues. ACR, AKS GA Preview Activated with plan Agentless Free Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet
Kubernetes data plane hardening Protect workloads of your Kubernetes containers with best practice recommendations. AKS GA - Enable Azure Policy for Kubernetes toggle Azure Policy Free Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet
Docker CIS Docker CIS benchmark VM, Virtual Machine Scale Set GA - Enabled with plan Log Analytics agent Defender for Servers Plan 2 Commercial clouds

National clouds: Azure Government, Microsoft Azure operated by 21Vianet

Vulnerability assessment

Feature Description Supported resources Linux release state Windows release state Enablement method Agent Plans Azure clouds availability
Agentless registry scan (powered by Microsoft Defender Vulnerability Management) supported packages Vulnerability assessment for images in ACR ACR, Private ACR GA Preview Enable Agentless container vulnerability assessment toggle Agentless Defender for Containers or Defender CSPM Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet
Agentless/agent-based runtime (powered by Microsoft Defender Vulnerability Management) supported packages Vulnerability assessment for running images in AKS AKS GA Preview Enable Agentless container vulnerability assessment toggle Agentless (Requires Agentless discovery for Kubernetes) OR/AND Defender agent Defender for Containers or Defender CSPM Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet
Deprecated: Agentless/agent-based runtime scan (powered by Qualys) OS packages Vulnerability assessment for running images in AKS AKS GA Preview Activated with plan Defender agent Defender for Containers Commercial clouds
Deprecated: Agentless registry scan (powered by Qualys)
Supported OS packages
Vulnerability assessment for images in ACR ACR, Private ACR GA Preview Activated with plan Agentless Defender for Containers Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet
Deprecated: Agentless registry scan (powered by Qualys)
Supported language packages
Vulnerability assessment for images in ACR ACR, Private ACR Preview - Activated with plan Agentless Defender for Containers Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet

Runtime threat protection

Feature Description Supported resources Linux release state Windows release state Enablement method Agent Plans Azure clouds availability
Control plane Detection of suspicious activity for Kubernetes based on Kubernetes audit trail AKS GA GA Enabled with plan Agentless Defender for Containers Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet
Workload Detection of suspicious activity for Kubernetes for cluster level, node level, and workload level AKS GA - Enable Defender Agent in Azure toggle OR deploy Defender agent on individual clusters Defender agent Defender for Containers Commercial clouds

Deployment & monitoring

Feature Description Supported resources Linux release state Windows release state Enablement method Agent Plans Azure clouds availability
Discovery of unprotected clusters Discovering Kubernetes clusters missing Defender agents AKS GA GA Enabled with plan Agentless Free Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet
Defender agent auto provisioning Automatic deployment of Defender agent AKS GA - Enable Defender Agent in Azure toggle Agentless Defender for Containers Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet
Azure Policy for Kubernetes auto provisioning Automatic deployment of Azure policy agent for Kubernetes AKS GA - Enable Azure policy for Kubernetes toggle Agentless Free Commercial clouds

National clouds: Azure Government, Azure operated by 21Vianet

Registries and images support for Azure - vulnerability assessment powered by Qualys (Deprecated)

Aspect Details
Registries and images Supported
ACR registries protected with Azure Private Link (Private registries requires access to Trusted Services)
• Windows images using Windows OS version 1709 and above (Preview). This is free while it's in preview, and will incur charges (based on the Defender for Containers plan) when it becomes generally available.

Unsupported
• Super-minimalist images such as Docker scratch images
• "Distroless" images that only contain an application and its runtime dependencies without a package manager, shell, or OS
• Images with Open Container Initiative (OCI) Image Format Specification
• Providing image tag information for multi-architecture images is currently unsupported
OS Packages Supported
• Alpine Linux 3.12-3.16
• Red Hat Enterprise Linux 6, 7, 8
• CentOS 6, 7
• Oracle Linux 6, 7, 8
• Amazon Linux 1, 2
• openSUSE Leap 42, 15
• SUSE Enterprise Linux 11, 12, 15
• Debian GNU/Linux wheezy, jessie, stretch, buster, bullseye
• Ubuntu 10.10-22.04
• FreeBSD 11.1-13.1
• Fedora 32, 33, 34, 35
Language specific packages (Preview)

(Only supported for Linux images)
Supported
• Python
• Node.js
• .NET
• JAVA
• Go

Registries and images support for Azure - Vulnerability assessment powered by Microsoft Defender Vulnerability Management

Aspect Details
Registries and images Supported
• ACR registries
ACR registries protected with Azure Private Link (Private registries requires access to Trusted Services)
• Container images in Docker V2 format
• Images with Open Container Initiative (OCI) image format specification
Unsupported
• Super-minimalist images such as Docker scratch images
is currently unsupported
Operating systems Supported
• Alpine Linux 3.12-3.16
• Red Hat Enterprise Linux 6-9
• CentOS 6-9
• Oracle Linux 6-9
• Amazon Linux 1, 2
• openSUSE Leap, openSUSE Tumbleweed
• SUSE Enterprise Linux 11-15
• Debian GNU/Linux 7-12
• Google Distroless (based on Debian GNU/Linux 7-12)
• Ubuntu 12.04-22.04
• Fedora 31-37
• Mariner 1-2
• Windows Server 2016, 2019, 2022
Language specific packages

Supported
• Python
• Node.js
• .NET
• JAVA
• Go

Kubernetes distributions and configurations for Azure - Runtime threat protection

Aspect Details
Kubernetes distributions and configurations Supported
Azure Kubernetes Service (AKS) with Kubernetes RBAC

Supported via Arc enabled Kubernetes 1 2
Azure Kubernetes Service hybrid
Kubernetes
AKS Engine
Azure Red Hat OpenShift

1 Any Cloud Native Computing Foundation (CNCF) certified Kubernetes clusters should be supported, but only the specified clusters have been tested on Azure.

2 To get Microsoft Defender for Containers protection for your environments, you need to onboard Azure Arc-enabled Kubernetes and enable Defender for Containers as an Arc extension.

Note

For additional requirements for Kubernetes workload protection, see existing limitations.

Defender for Containers relies on the Defender agent for several features. The Defender agent doesn't support the ability to ingest data through Private Link. You can disable public access for ingestion, so that only machines that are configured to send traffic through Azure Monitor Private Link can send data to that workstation. You can configure a private link by navigating to your workspace > Network Isolation and setting the Virtual networks access configurations to No.

Screenshot that shows where to go to turn off data ingestion.

Allowing data ingestion to occur only through Private Link Scope on your workspace Network Isolation settings, can result in communication failures and partial converge of the Defender for Containers feature set.

Learn how to use Azure Private Link to connect networks to Azure Monitor.

AWS

Domain Feature Supported Resources Linux release state Windows release state Agentless/Agent-based Pricing tier
Security posture management Agentless discovery for Kubernetes EKS Preview Preview Agentless Defender for Containers OR Defender CSPM
Security posture management Comprehensive inventory capabilities ECR, EKS Preview Preview Agentless Defender for Containers OR Defender CSPM
Security posture management Attack path analysis ECR, EKS Preview - Agentless Defender CSPM
Security posture management Enhanced risk-hunting ECR, EKS Preview Preview Agentless Defender for Containers OR Defender CSPM
Security posture management Docker CIS EC2 Preview - Log Analytics agent Defender for Servers Plan 2
Security posture management Control plane hardening - - - - -
Security posture management Kubernetes data plane hardening EKS GA - Azure Policy for Kubernetes Defender for Containers
Vulnerability assessment Agentless registry scan (powered by Microsoft Defender Vulnerability Management) supported packages ECR Preview Preview Agentless Defender for Containers or Defender CSPM
Vulnerability assessment Agentless/agent-based runtime (powered by Microsoft Defender Vulnerability Management) supported packages EKS Preview Preview Agentless OR/AND Defender agent Defender for Containers or Defender CSPM
Runtime protection Control plane EKS Preview Preview Agentless Defender for Containers
Runtime protection Workload EKS Preview - Defender agent Defender for Containers
Deployment & monitoring Discovery of unprotected clusters EKS Preview - Agentless Free
Deployment & monitoring Auto provisioning of Defender agent - - - - -
Deployment & monitoring Auto provisioning of Azure Policy for Kubernetes - - - - -

Registries and images support for AWS - Vulnerability assessment powered by Microsoft Defender Vulnerability Management

Aspect Details
Registries and images Supported
• ECR registries
• Container images in Docker V2 format
• Images with Open Container Initiative (OCI) image format specification
Unsupported
• Super-minimalist images such as Docker scratch images is currently unsupported
• Public repositories
• Manifest lists
Operating systems Supported
• Alpine Linux 3.12-3.16
• Red Hat Enterprise Linux 6-9
• CentOS 6-9
• Oracle Linux 6-9
• Amazon Linux 1, 2
• openSUSE Leap, openSUSE Tumbleweed
• SUSE Enterprise Linux 11-15
• Debian GNU/Linux 7-12
• Google Distroless (based on Debian GNU/Linux 7-12)
• Ubuntu 12.04-22.04
• Fedora 31-37
• Mariner 1-2
• Windows server 2016, 2019, 2022
Language specific packages

Supported
• Python
• Node.js
• .NET
• JAVA
• Go

Kubernetes distributions/configurations support for AWS - Runtime threat protection

Aspect Details
Kubernetes distributions and configurations Supported
Amazon Elastic Kubernetes Service (EKS)

Supported via Arc enabled Kubernetes 1 2
Kubernetes
Unsupported
• EKS private clusters

1 Any Cloud Native Computing Foundation (CNCF) certified Kubernetes clusters should be supported, but only the specified clusters have been tested.

2 To get Microsoft Defender for Containers protection for your environments, you need to onboard Azure Arc-enabled Kubernetes and enable Defender for Containers as an Arc extension.

Note

For additional requirements for Kubernetes workload protection, see existing limitations.

Outbound proxy support - AWS

Outbound proxy without authentication and outbound proxy with basic authentication are supported. Outbound proxy that expects trusted certificates is currently not supported.

GCP

Domain Feature Supported Resources Linux release state Windows release state Agentless/Agent-based Pricing tier
Security posture management Agentless discovery for Kubernetes GKE Preview Preview Agentless Defender for Containers OR Defender CSPM
Security posture management Comprehensive inventory capabilities GAR, GCR, GKE Preview Preview Agentless Defender for Containers OR Defender CSPM
Security posture management Attack path analysis GAR, GCR, GKE Preview - Agentless Defender CSPM
Security posture management Enhanced risk-hunting GAR, GCR, GKE Preview Preview Agentless Defender for Containers OR Defender CSPM
Security posture management Docker CIS GCP VMs Preview - Log Analytics agent Defender for Servers Plan 2
Security posture management Control plane hardening GKE GA GA Agentless Free
Security posture management Kubernetes data plane hardening GKE GA - Azure Policy for Kubernetes Defender for Containers
Vulnerability assessment Agentless registry scan (powered by Microsoft Defender Vulnerability Management) supported packages GAR, GCR Preview Preview Agentless Defender for Containers or Defender CSPM
Vulnerability assessment Agentless/agent-based runtime (powered by Microsoft Defender Vulnerability Management) supported packages GKE Preview Preview Agentless OR/AND Defender agent Defender for Containers or Defender CSPM
Runtime protection Control plane GKE Preview Preview Agentless Defender for Containers
Runtime protection Workload GKE Preview - Defender agent Defender for Containers
Deployment & monitoring Discovery of unprotected clusters GKE Preview - Agentless Free
Deployment & monitoring Auto provisioning of Defender agent GKE Preview - Agentless Defender for Containers
Deployment & monitoring Auto provisioning of Azure Policy for Kubernetes GKE Preview - Agentless Defender for Containers

Registries and images support for GCP - Vulnerability assessment powered by Microsoft Defender Vulnerability Management

Aspect Details
Registries and images Supported
• Google Registries (GAR, GCR)
• Container images in Docker V2 format
• Images with Open Container Initiative (OCI) image format specification
Unsupported
• Super-minimalist images such as Docker scratch images is currently unsupported
• Public repositories
• Manifest lists
Operating systems Supported
• Alpine Linux 3.12-3.16
• Red Hat Enterprise Linux 6-9
• CentOS 6-9
• Oracle Linux 6-9
• Amazon Linux 1, 2
• openSUSE Leap, openSUSE Tumbleweed
• SUSE Enterprise Linux 11-15
• Debian GNU/Linux 7-12
• Google Distroless (based on Debian GNU/Linux 7-12)
• Ubuntu 12.04-22.04
• Fedora 31-37
• Mariner 1-2
• Windows server 2016, 2019, 2022
Language specific packages

Supported
• Python
• Node.js
• .NET
• JAVA
• Go

Kubernetes distributions/configurations support for GCP - Runtime threat protection

Aspect Details
Kubernetes distributions and configurations Supported
Google Kubernetes Engine (GKE) Standard

Supported via Arc enabled Kubernetes 1 2
Kubernetes

Unsupported
• Private network clusters
• GKE autopilot
• GKE AuthorizedNetworksConfig

1 Any Cloud Native Computing Foundation (CNCF) certified Kubernetes clusters should be supported, but only the specified clusters have been tested.

2 To get Microsoft Defender for Containers protection for your environments, you need to onboard Azure Arc-enabled Kubernetes and enable Defender for Containers as an Arc extension.

Note

For additional requirements for Kubernetes workload protection, see existing limitations.

Outbound proxy support - GCP

Outbound proxy without authentication and outbound proxy with basic authentication are supported. Outbound proxy that expects trusted certificates is currently not supported.

On-premises, Arc-enabled Kubernetes clusters

Domain Feature Supported Resources Linux release state Windows release state Agentless/Agent-based Pricing tier
Security posture management Docker CIS Arc enabled VMs Preview - Log Analytics agent Defender for Servers Plan 2
Security posture management Control plane hardening - - - - -
Security posture management Kubernetes data plane hardening Arc enabled K8s clusters GA - Azure Policy for Kubernetes Defender for Containers
Runtime protection Threat protection (control plane) Arc enabled K8s clusters Preview Preview Defender agent Defender for Containers
Runtime protection Threat protection (workload) Arc enabled K8s clusters Preview - Defender agent Defender for Containers
Deployment & monitoring Discovery of unprotected clusters Arc enabled K8s clusters Preview - Agentless Free
Deployment & monitoring Auto provisioning of Defender agent Arc enabled K8s clusters Preview Preview Agentless Defender for Containers
Deployment & monitoring Auto provisioning of Azure Policy for Kubernetes Arc enabled K8s clusters Preview - Agentless Defender for Containers

Kubernetes distributions and configurations

Aspect Details
Kubernetes distributions and configurations Supported via Arc enabled Kubernetes 1 2
Azure Kubernetes Service hybrid
Kubernetes
AKS Engine
Azure Red Hat OpenShift
Red Hat OpenShift (version 4.6 or newer)
VMware Tanzu Kubernetes Grid
Rancher Kubernetes Engine

1 Any Cloud Native Computing Foundation (CNCF) certified Kubernetes clusters should be supported, but only the specified clusters have been tested.

2 To get Microsoft Defender for Containers protection for your environments, you need to onboard Azure Arc-enabled Kubernetes and enable Defender for Containers as an Arc extension.

Note

For additional requirements for Kubernetes workload protection, see existing limitations.

Supported host operating systems

Defender for Containers relies on the Defender agent for several features. The Defender agent is supported on the following host operating systems:

  • Amazon Linux 2
  • CentOS 8
  • Debian 10
  • Debian 11
  • Google Container-Optimized OS
  • Mariner 1.0
  • Mariner 2.0
  • Red Hat Enterprise Linux 8
  • Ubuntu 16.04
  • Ubuntu 18.04
  • Ubuntu 20.04
  • Ubuntu 22.04

Ensure your Kubernetes node is running on one of the verified supported operating systems. Clusters with different host operating systems, only get partial coverage.

Defender agent limitations

The Defender agent is currently not supported on ARM64 nodes.

Network restrictions

Defender for Containers relies on the Defender agent for several features. The Defender agent doesn't support the ability to ingest data through Private Link. You can disable public access for ingestion, so that only machines that are configured to send traffic through Azure Monitor Private Link can send data to that workstation. You can configure a private link by navigating to your workspace > Network Isolation and setting the Virtual networks access configurations to No.

Screenshot that shows where to go to turn off data ingestion.

Allowing data ingestion to occur only through Private Link Scope on your workspace Network Isolation settings, can result in communication failures and partial converge of the Defender for Containers feature set.

Learn how to use Azure Private Link to connect networks to Azure Monitor.

Outbound proxy support

Outbound proxy without authentication and outbound proxy with basic authentication are supported. Outbound proxy that expects trusted certificates is currently not supported.

Next steps