tips-and-tricks.md

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