What Will You Do¶
In this exercise you will create and deploy a test workload that will use the MetalLB loadbalancer
- You have already configured and installed MetalLB on your upstream Kubernetes cluster
Step 1: Create Manifest¶
- Copy the file below and save as metallb-nginx.yaml
- Change the namespace name in the deployment and service to match your environment
--- apiVersion: apps/v1 kind: Deployment metadata: labels: app: nginx name: nginx namespace: david-private-ns spec: replicas: 3 selector: matchLabels: app: nginx template: metadata: labels: app: nginx spec: containers: - image: nginx imagePullPolicy: Always name: nginx restartPolicy: Always --- apiVersion: v1 kind: Service metadata: labels: app: nginx name: nginx namespace: david-private-ns spec: loadBalancerIP: 192.168.10.200 ports: - port: 80 protocol: TCP targetPort: 80 selector: app: nginx type: LoadBalancer
To set a static IP we have assigned a loadBalancerIP to the spec. This should be set to an IP from the static address pool defined in the ConfigMap.
Step 2: Create Workload¶
- Under Applications, select "Workloads"
- Select "New Workload" and enter a Name, set Package Type to "k8s YAML", and select the Namespace
- Upload file metallb-nginx.yaml
- Publish Workload
Step 3: Verify Workload¶
Click on the Kubectl button on the cluster to open a virtual terminal and run the following kubectl command
kubectl get services -n david-private-ns NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE nginx LoadBalancer 10.97.90.176 10.0.2.240 80:30556/TCP 2m30s
MetalLB is listening for services of type LoadBalancer and immediately assigns an external IP (an IP chosen from the range you selected when you set up MetalLB). View the new service and the external IP address MetalLB assigned to it.
Congratulations! You have successfully created and deployed a workload to use the MetalLB Load Balancer.