ZebOS ConfigMaps¶

The BIG-IP Next for Kubernetes TMM pod’s f5-tmm-routing container uses the ZebOS.conf file as a ConfigMap for its BGP configuration. This allows dynamic routing to the BGP configuration through the Bidirectional Forwarding Detection (BFD) watcher without the need to restart the f5-tmm-routing container. The setup with seamless updates ensures efficient routing and robust fault detection in Kubernetes clusters.

Create ZebOS ConfigMap¶

The f5-tmm-routing container requires a ZebOS ConfigMap, which is used to store BGP configuration.

Follow the instructions below to create the ZebOS ConfigMap.

Create a file named zebos-conf.yaml with the below content.

apiVersion: v1
data:
   ZebOS.conf: |
      router bgp 64522
        !
        bgp router-id 192.168.154.96
        bgp log-neighbor-changes
        bgp graceful-restart restart-time 120
        no bgp default ipv4-unicast
        redistribute kernel
        !
        max-paths ebgp 5
        !
        neighbor spkv4 peer-group
        neighbor spkv4 remote-as 64521
        neighbor spkv4 activate
        neighbor 10.4.1.246 remote-as 64521
        neighbor 10.4.1.246 activate

        neighbor spkv6 peer-group
        neighbor spkv6 remote-as 64521
        neighbor spkv6 activate
        neighbor fc04:1::254 remote-as 64521
        neighbor fc04:1::254 activate
        !
        !
        address-family ipv6 unicast
           redistribute kernel
           neighbor fc04:1::254 activate
        exit-address-family
        !
        address-family ipv4
           redistribute kernel
           neighbor 10.4.1.246 activate
        exit-address-family
        !
 
 
        bfd gtsm enable
        interface external
          bfd interval 100 minrx 100 multiplier 3
          exit
        router bgp 64522
          neighbor 10.4.1.246 fall-over bfd
          neighbor fc04:1::254 fall-over bfd
 
kind: ConfigMap
metadata:
   name: f5-tmm-dynamic-routing-template
   namespace: alpha

Install the ZebOS ConfigMap.

In this example, the ZebOS ConfigMap installs to the alpha Project.
```
kubectl apply -f zebos-conf.yaml -n alpha
```
Note: Ensure that the ZebOS ConfigMap is installed in the same namespace where the BNKGatewayClass CR is installed.

View the ZebOS ConfigMap¶

To view the ZebOS ConfigMap, run the following command.

kubectl get cm -n alpha

Sample Output

NAME                                DATA   AGE
f5-tmm-dynamic-routing-template     1      7d22h

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