Robusta Specialization Module (Custom Playbook Actions)

Task 1: Setup Kubernetes cluster in your local machine using Kind

1. Install the kinD cluster.

curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.11.1/kind-linux-amd64
chmod +x ./kind
sudo mv ./kind /usr/local/bin/
kind version

2. Install kubectl.

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
chmod +x kubectl
sudo mv kubectl /usr/local/bin/
kubectl version --client

3. Create a cluster and verify it.

kind create cluster
kubectl get nodes

Task 2: Install Robusta on your Kubernetes cluster

1. Create python environment.

python3.10 -m venv robusta
source robusta/bin/activate

2. Install the robusta-cli: This step is needed to generate the values file for helm chart installation.

python3 -m pip install -U robusta-cli --no-cache

3. Generate a generated_values.yaml for the Robusta chart:

# An interactive session where you can configure sinks 
# such as receiving alerts to a particular Slack channel, MS Teams. 
# This generates a `generated_values.yaml`
robusta gen-config

3. Install Robusta with helm:

helm repo add robusta https://robusta-charts.storage.googleapis.com && helm repo update
helm install robusta robusta/robusta -f ./generated_values.yaml --set clusterName=<cluster-name>

Task 3: Deploy a Pod on your Kubernetes cluster which uses a persistent volume

1. Deploy a manifest with PV, PVC and Pod.

kubectl apply -f Scenario_1.yaml

Task 4: Create your playbook repository, push that to GitHub and use the Github link in your Robusta's generated-values.yaml file.

1. Add the following code in the generated.yaml file after setting up the repository.

playbookRepos:
  my_extra_playbooks:
    url: https://github.com/HamzaXgrid/RobustaPlaybook1.git

2. Now update the values in the helm.

helm upgrade robusta robusta/robusta --values=generated_values.yaml --set clusterName=kind-mycluster-1

3. Invoke a trigger using below command.

robusta playbooks trigger List_of_Files_on_PV name=new-pv-pod namespace=default 

Task 5: Write a function on python which mounts a persistent volume and send the list of files present on that persistent volume to a sink.

The Function is written in my-actions.py file that send the list of files present on that persistent volume to a sink.

Task 6: Make sure to cover all scenarios

1. For the scenario1, our action lists the files on PV and sends to sink.
2. For the scenario2, our action creates a pod and lists the files on PV and sends to sink.
3. For the scenario3, our action sends the notification that no PV is not claimed by any PVC.

Task 7: Run the action using your generated-values.yaml file and manually.

robusta playbooks trigger List_of_Files_on_PV name=new-pv-volume
robusta playbooks trigger List_of_Files_on_PV name=task-pv-volume