Discover how to build, deploy, scale, and manage Kubernetes. Gain insights into architecture, pods, deployments, services, and run real-world projects to solidify your skills.

kubernetes.tar.gz

kubernetes

port-30001

port-3000

port-4567

port-8001

Port-3001

Port-3001-v1

Kubernetes in Practice is your one-stop shop for learning how to build, deploy, scale, and manage Kubernetes in a step-by-step process.

You will learn all the most important concepts including: architecture, pods, deployments, services, ingress, and a whole lot more. Once you have the fundamentals out of the way, you will get the opportunity to put your skills to work in a project where you will create and run an application in a real Kubernetes cluster.

By the time you finish this course, you will have complete confidence when it comes to deploying and managing kubernetes clusters.

Kubernetes in Practice

Let's first create a `Service` and `Deployment` for the new version of our application to make sure everything is working fine:

apiVersion: v1
kind: Service
metadata:
  name: hellok8s-svc
spec:
  type: NodePort
  selector:
    app: hellok8s
  ports:
  - port: 4567
    nodePort: 30001

---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: hellok8s
spec:
  replicas: 2
  selector:
    matchLabels:
      app: hellok8s
  template:
    metadata:
      labels:
        app: hellok8s
    spec:
      containers:
      - image: brianstorti/hellok8s:v4
        name: hellok8s-container

Apply this manifest. Now, if we try to access this service (using the node port we just defined `30001`), we should see the default message:

Learn how to pass an environment variable to a container.

Before We Begin

What Kubernetes Brings to the Table

Kubernetes Architecture

Pods

Deployments

Services

Deploying a Web Application over Kubernetes

Ingress

Configuring Applications with Configmaps

Using Secrets for Sensitive Configs

Running Jobs

Fault-Tolerant Web Hosting on Kubernetes

Organizing Resources with Namespaces

Managing Containers Resource Usage

Understanding the Kubeconfig File

Kubernetes IRL

Appendix

Wrap Up!

Passing an Environment Variable to Our Container

Creating a new version