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# Tips and tricks
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## Check availability and status of Kubernetes resources
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In a terminal connected to the master node:
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```
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kubectl get nodes
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kubectl get deployments
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kubectl get pods
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```
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## Open a terminal to a node
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From a terminal connected to the master node:
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```
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kubectl get nodes
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# select a <NAME> from the left column of the output of above
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ssh <NAME>
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```
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## Open a terminal to a pod
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From a terminal connected to the master node:
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```
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kubectl get pods
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# select a <NAME> from the left column of the output of above
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kubectl exec -i -t <NAME> bash
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```
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## Grafana dashboard definition in the Kubernetes configuration
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Proceed as follows:
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* Design the Dashboard interactively in the Grafana webinterface.
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* Save the Dashboard.
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* In the Dashboard's settings, click 'JSON Model'.
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* Copy the JSON contents.
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* Save the contents into a .json file in the Kubernetes configuration project.
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* Add the .json file to the `spec.template.spec.volumes.containers[grafana].volumeMounts` section
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of the Grafana configuration, as in the following example taken from **grafana.yaml** in the
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[Example experiment Kubernetes configuration](https://gitlab.ilabt.imec.be/benchmarking-experiments/ex-exp-k8s-config):
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```
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- mountPath: /var/lib/grafana/dashboards/dashboard1.json
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name: grafana-config
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readOnly: true
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subPath: dashboard1.json
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```
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* Add a line referencing the file to the `kubectl create configmap grafana-config` command in the experiment launch script,
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as in **launch-experiment.sh** in the
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[Example experiment Kubernetes configuration](https://gitlab.ilabt.imec.be/benchmarking-experiments/ex-exp-k8s-config):
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```
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--from-file=dashboard1.json=dashboard1.json \
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```
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