How do I install Nginx on Kubernetes and test it?

2 years ago
Benjamin Taylor
2 minutes

To install and test Nginx in a Kubernetes cluster, you can follow these steps:

  1. Install the Nginx Ingress Controller.
  2. Install Nginx Ingress Controller using Helm: helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx and helm install my-nginx ingress-nginx/ingress-nginx.
  3. Wait for the installation to complete, then check if the Pods of Nginx Ingress Controller are successfully running by using the command: kubectl get pods -n ingress-nginx

    Make sure that all Pods are in the Running state.

  4. Set up a basic Nginx Deployment and Service.
  5. Write a nginx-deployment.yaml file with the following content:

    apiVersion: apps/v1
    kind: Deployment
    metadata:
    name: nginx-deployment
    spec:
    replicas: 1
    selector:
    matchLabels:
    app: nginx
    template:
    metadata:
    labels:
    app: nginx
    spec:
    containers:
    – name: nginx
    image: nginx:latest
    ports:
    – containerPort: 80

  6. Create a Deployment: use the command “kubectl apply -f nginx-deployment.yaml”
  7. Check the status of the Deployment and Pods:
    Run ‘kubectl get deployments’ and ‘kubectl get pods’ commands to ensure the Deployment has 1 replica and the Pods are running.
  8. Create an Ingress resource:
  9. Create an nginx-ingress.yaml file with the following content:
    apiVersion: networking.k8s.io/v1
    kind: Ingress
    metadata:
    name: nginx-ingress
    spec:
    rules:
    – host: your-domain.com
    http:
    paths:
    – path: /
    pathType: Prefix
    backend:
    service:
    name: nginx-service
    port:
    number: 80
  10. Replace your-domain.com with the address of your domain or load balancer.
  11. Create Ingress resource using: kubectl apply -f nginx-ingress.yaml
  12. Check the status of Ingress resources using the command “kubectl get ingress” and make sure the status is READY.
  13. Set up DNS resolution or load balancer.
  14. Map your-domain.com to the external IP address of the load balancer or Ingress Controller in the Kubernetes cluster.
  15. Test whether Nginx is accessible.
  16. When you access http://your-domain.com in your browser and see the Nginx welcome page, it means that the installation and configuration have been successful.

By doing this, you have completed the process of installing and testing Nginx in a Kubernetes cluster. Please adjust and configure according to your specific circumstances.

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