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Juniper Cloud-Native Router User Guide
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{ "lLangCode": "en", "lName": "English", "lCountryCode": "us", "transcode": "en_US" }
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Access vRouter CLI

Release: JCNR 23.3
{}
Change Release
date_range 15-Oct-23

You can access the command-line interface (CLI) of the vRouter by accessing the shell of the running vRouter-agent container.

Note:

The commands below are provided as an example. The vRouter pod name must be replaced from your environment. The command outputs may differ based on your environment.

List the running pods on the K8s Cluster:

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kubectl get pods -A
NAMESPACE         NAME                                       READY   STATUS      RESTARTS      AGE
contrail-deploy   contrail-k8s-deployer-7b5dd699b9-nd7xf     1/1     Running     0             41m
contrail          contrail-vrouter-masters-dfxgm             3/3     Running     0             41m
jcnr              kube-crpd-worker-ds-8tnf7                  1/1     Running     0             41m
jcnr              syslog-ng-54749b7b77-v24hq                 1/1     Running     0             41m
kube-system       calico-kube-controllers-57b9767bdb-5wbj6   1/1     Running     2 (92d ago)   129d
kube-system       calico-node-j4m5b                          1/1     Running     2 (92d ago)   129d
kube-system       coredns-8474476ff8-fpw78                   1/1     Running     2 (92d ago)   129d
kube-system       dns-autoscaler-7f76f4dd6-q5vdp             1/1     Running     2 (92d ago)   129d
kube-system       kube-apiserver-5a5s5-node2                 1/1     Running     3 (92d ago)   129d
kube-system       kube-controller-manager-5a5s5-node2        1/1     Running     4 (92d ago)   129d
kube-system       kube-multus-ds-amd64-4zm5k                 1/1     Running     2 (92d ago)   129d
kube-system       kube-proxy-l6xm8                           1/1     Running     2 (92d ago)   129d
kube-system       kube-scheduler-5a5s5-node2                 1/1     Running     4 (92d ago)   129d
kube-system       nodelocaldns-6kwg5                         1/1     Running     2 (92d ago)   129d

Copy the name of the vRouter pod—contrail-vrouter-masters-dfxgm in this example output . You will use the pod name to connect to the running container's shell.

Issue the kubectl exec command to access the running container's shell:

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kubectl exec -n <namespace> -it <pod name> --container <container name> -- bash

where <namespace> identifies the namespace in which the pod is running, <pod name> specificies the name of the pod and the <container name> specifies the name of the container (to be specified if the pod has more than one container).

The vRouter pod has three containers. When the container name is not specified, the command will default to the vrouter-agent container shell. Here is an example:

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[root@jcnr-01]# kubectl exec -n contrail -it contrail-vrouter-masters-dfxgm -- bash
Defaulted container "contrail-vrouter-agent" out of: contrail-vrouter-agent, contrail-vrouter-agent-dpdk, 
contrail-vrouter-telemetry-exporter, contrail-init (init), contrail-vrouter-kernel-init-dpdk (init)
[root@jcnr-01 /]# 

At this point, you have connected to the vRouter's CLI.

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