Guide to the Secure Configuration of Red Hat OpenShift Container Platform 4
Rules, Groups, and Values defined within the XCCDF Benchmark
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kubelet - Allow Automatic Firewall Configuration
The kubelet has the ability to automatically configure the firewall to allow the containers required ports and connections to networking resources and destinations parameters potentially creating a...Rule Medium Severity -
kubelet - Enable Protect Kernel Defaults
<p> Protect tuned kernel parameters from being overwritten by the kubelet. </p> <p> Before enabling this kernel parameter, it's important and necessary to first create ...Rule Medium Severity -
kubelet - Set Up Sysctl to Enable Protect Kernel Defaults
<p> Setup required tuned kernel parameters before enabling overwritten protection. Note that depending on the Linux distribution and its version that your cluster nodes are running, ...Rule Medium Severity -
kubelet - Enable Server Certificate Rotation
To enable the kubelet to rotate server certificates, edit the kubelet configuration file <code>/etc/kubernetes/kubelet.conf</code> on the kubelet node(s) and set the below parameter: <pre> serverTL...Rule Medium Severity -
kubelet - Do Not Disable Streaming Timeouts
Timouts for streaming connections should not be disabled as they help to prevent denial-of-service attacks. To configure streaming connection timeouts To set the <code>streamingConnectionIdleTimeou...Rule Medium Severity -
Ensure Eviction threshold Settings Are Set - evictionHard: imagefs.available
<p>Two types of garbage collection are performed on an OpenShift Container Platform node:</p> <ul> <li>Container garbage collection: Removes terminated ...Rule Medium Severity -
Ensure Eviction threshold Settings Are Set - evictionHard: imagefs.inodesFree
<p>Two types of garbage collection are performed on an OpenShift Container Platform node:</p> <ul> <li>Container garbage collection: Removes terminated ...Rule Medium Severity -
Ensure Eviction threshold Settings Are Set - evictionHard: memory.available
<p>Two types of garbage collection are performed on an OpenShift Container Platform node:</p> <ul> <li>Container garbage collection: Removes terminated ...Rule Medium Severity -
Ensure Eviction threshold Settings Are Set - evictionHard: nodefs.available
<p>Two types of garbage collection are performed on an OpenShift Container Platform node:</p> <ul> <li>Container garbage collection: Removes terminated ...Rule Medium Severity -
Ensure Eviction threshold Settings Are Set - evictionHard: nodefs.inodesFree
<p>Two types of garbage collection are performed on an OpenShift Container Platform node:</p> <ul> <li>Container garbage collection: Removes terminated ...Rule Medium Severity
Node 2
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