April 6, 2021 By Lucas Palm 2 min read

Cluster image security enforcement is a new feature available today in our IBM Cloud Kubernetes Service and Red Hat OpenShift on IBM Cloud offerings. 

Enabling image security enforcement in your cluster will provide you an easy way to ensure that the images running in your cluster meet specific security requirements set and controlled by you.

With image security enabled in your cluster, you can control where images are deployed from, enforce Vulnerability Advisor policies, ensure that content trust is properly applied to an image and more.

If an image does not meet your policy requirements, the pod is not deployed to your cluster or updated.

When you enable the image security feature in your cluster, you are getting a fully managed version of the open source Portieris project dedicated solely to your cluster.  This means that Portieris will receive the same high-availability benefits as your cluster masters do today. So, once enabled and configured to your liking, you can sit back and relax, knowing your cluster is protected at all times from undesirable images.


This feature is generally available today for the following cluster versions:

  • Kubernetes 1.18+
  • OpenShift 4.5+

Clusters at older versions will first need to upgrade to a supported version before you can enable image security.

Ready to get started?

Assuming your cluster is at a supported version level, enabling image security enforcement can be done in one easy step from the CLI or console. The installation documentation will walk you through this simple process.  

Once enabled, the next step would be to start creating image policies to control what images are allowed to run in your cluster. Image security policies define Portieris’ behavior in your cluster. You must configure your own policies in order for Portieris to enforce your required security posture.  

As an “out-of-the-box” bonus, the IBM-owned images we deploy into your cluster will already have the proper security enforcement applied to them, so all that is left for you to do is configure how you want your own images to behave.

Learn more about the IBM Cloud Kubernetes Service and Red Hat OpenShift on IBM Cloud offerings.

More from Announcements

IBM Hybrid Cloud Mesh and Red Hat Service Interconnect: A new era of app-centric connectivity 

2 min read - To meet customer demands, applications are expected to be performing at their best at all times. Simultaneously, applications need to be flexible and cost effective, and therefore supported by an underlying infrastructure that is equally reliant, performant and secure as the applications themselves.   Easier said than done. According to EMA's 2024 Network Management Megatrends report only 42% of responding IT professionals would rate their network operations as successful.   In this era of hyper-distributed infrastructure where our users, apps, and data…

IBM named a Leader in Gartner Magic Quadrant for SIEM, for the 14th consecutive time

3 min read - Security operations is getting more complex and inefficient with too many tools, too much data and simply too much to do. According to a study done by IBM, SOC team members are only able to handle half of the alerts that they should be reviewing in a typical workday. This potentially leads to missing the important alerts that are critical to an organization's security. Thus, choosing the right SIEM solution can be transformative for security teams, helping them manage alerts…

IBM and MuleSoft expand global relationship to accelerate modernization on IBM Power 

2 min read - As companies undergo digital transformation, they rely on APIs as the backbone for providing new services and customer experiences. While APIs can simplify application development and deliver integrated solutions, IT shops must have a robust solution to effectively manage and govern them to ensure that response times and costs are kept low for all applications. Many customers use Salesforce’s MuleSoft, named a leader by Gartner® in full lifecycle API management for seven consecutive times, to manage and secure APIs across…

IBM Newsletters

Get our newsletters and topic updates that deliver the latest thought leadership and insights on emerging trends.
Subscribe now More newsletters