Release Notes

F5 Service Proxy for Kubernetes (SPK) - v1.5.2

New Features and Improvements

The F5SPKEgress Custom Resource (CR) no longer creates a DNS forwarding virtual server (port 53) when the dnsNat46Enabled parameter is disabled. Prior to this change, the CR created the DNS virtual server regardless of the parameter value.

Limitations

  • Jumbo Frames - The maximum transmission unit (MTU) must be the same size on both ingress and egress interfaces. Packets over 8000 bytes are dropped.

Bug Fixes

1154525 (Ingress)

All TMM Pods now receive the F5SPKEgress CR configuration when the DnsNat46Enabled parameter is set to false (disabled).

Known Issues

1135533 (TMM)

New OVN BFD sessions may fail to establish after scaling the TMM Pod, causing traffic to flow to a single TMM Pod. F5 has worked with RedHat, and determined this is not an SPK software issue. Refer to RedHat bug OCPBUGS-712.

1091997 (TMM)

In dual-stack configurations, application traffic SPK CRs remain in the TMM configuration, even when the watched application is scaled to 0.

Workaround:

Scale the TMM Pod down, ensure the Pod terminates (is no longer running), and then scale the Pod back up.

1. oc scale deploy/f5-tmm --replicas 0
2. oc get pods 
3. oc scale deploy/f5-tmm --replicas 1

Software upgrades

Use these steps to upgrade the SPK software components:

_images/spk_warn.png Important: Steps 2 through 5 should be performed together, and during a planned maintenance window.

  1. Review the New Features and Improvements section above, and integrate any updates into the existing configuration. Do not apply Custom Resource (CR) updates until after the SPK Controller has been upgraded (step 3).
  2. Follow Install the CRDs in the SPK Software guide to upgrade the CRDs. Be aware that newly applied CRDs will replace existing CRDs of the same name.
  3. Uninstall the previous version SPK Controller, and follow the Installation procedure in the SPK Controller guide to upgrade the Controller and TMM Pods. Upgrades have not yet been tested using Helm Upgrade.
  4. Once the SPK Controller and TMM Pods are available, apply any updated CR configurations (step 1) using the oc apply -f <file> command.
  5. Follow the Upgrading DNS46 entries section of the F5SPKEgress CR guide to upgrade any entries created in versions 1.4.9 and earlier.
  6. The dSSM Databases can be upgraded at anytime using the Upgrading dSSM guide.
  7. The Fluentd Logging collector can be upgraded anytime using Helm Upgrade. Review Extract the Images in the SPK Software guide for the new Fluentd Helm chart location.

Next step

Continue to the Cluster Requirements guide to ensure the OpenShift cluster has the required software components.