Description

Full Kubernetes Tutorial | Kubernetes Course | Hands-on course with a lot of demos 💙 Become a Kubernetes Administrator - CKA: https://bit.ly/3MQtij9 💚 Become a DevOps Engineer - full educational program: https://bit.ly/3MRjKEE 💜 Become a DevOps expert and 10x your value: https://bit.ly/47lR9zx 🧡 Udemy courses: https://bit.ly/3BQkjbz #kubernetes #techworldwithnana Connect with me 👋 INSTAGRAM ► https://bit.ly/2F3LXYJ LINKEDIN ► https://bit.ly/3hWOLVT ▬▬▬▬▬▬ T I M E S T A M P S ⏰ ▬▬▬▬▬▬ 0:00 - Course Overview 2:18 - What is K8s 5:20 - Main K8s Components 22:29 - K8s Architecture 34:47 - Minikube and kubectl - Local Setup 44:52 - Main Kubectl Commands - K8s CLI 1:02:03 - K8s YAML Configuration File 1:16:16 - Demo Project: MongoDB and MongoExpress 1:46:16 - Organizing your components with K8s Namespaces 2:01:52 - K8s Ingress explained 2:24:17 - Helm - Package Manager 2:38:07 - Persisting Data in K8s with Volumes 2:58:38 - Deploying Stateful Apps with StatefulSet 3:13:43 - K8s Services explained ▬▬▬▬▬▬ COURSE OVERVIEW 📚 ▬▬▬▬▬▬ 🔥 What is Kubernetes 🔥 ► What problems does Kubernetes solve? ► What features do container orchestration tools offer? 🔥 Main K8s Components 🔥 ► Node & Pod ► Service & Ingress ► ConfigMap & Secret ► Volumes ► Deployment & StatefulSet 🔥 K8s Architecture 🔥 ► Worker Nodes ► Master Nodes ► Api Server ► Scheduler ► Controller Manager ► etcd - the cluster brain 🔥 Minikube and kubectl - Local Setup 🔥 ► What is minikube? ► What is kubectl? ► install minikube and kubectl ► create and start a minikube cluster 🔗 Links: - Install Minikube (Mac, Linux and Windows): https://bit.ly/38bLcJy - Install Kubectl: https://bit.ly/32bSI2Z - Gitlab: If you are using Mac, you can follow along the commands. I listed them all here: https://bit.ly/3oZzuHY 🔥 Main Kubectl Commands - K8s CLI 🔥 ► Get status of different components ► create a pod/deployment ► layers of abstraction ► change the pod/deployment ► debugging pods ► delete pod/deployment ► CRUD by applying configuration file 🔗 - Git repo link of all the commands: https://bit.ly/3oZzuHY 🔥 K8s YAML Configuration File 🔥 ► 3 parts of a Kubernetes config file (metadata, specification, status) ► format of configuration file ► blueprint for pods (template) ► connecting services to deployments and pods (label & selector & port) ► demo 🔗 - Git repo link: https://bit.ly/2JBVyIk 🔥 Demo Project 🔥 ► Deploying MongoDB and Mongo Express ► MongoDB Pod ► Secret ► MongoDB Internal Service ► Deployment Service and Config Map ► Mongo Express External Service 🔗 - Git repo link: https://bit.ly/3jY6lJp 🔥 Organizing your components with K8s Namespaces 🔥 ► What is a Namespace? ► 4 Default Namespaces ► Create a Namespace ► Why to use Namespaces? 4 Use Cases ► Characteristics of Namespaces ► Create Components in Namespaces ► Change Active Namespace 🔗 - Install Kubectx: https://github.com/ahmetb/kubectx#installation 🔥 K8s Ingress explained 🔥 ► What is Ingress? External Service vs. Ingress ► Example YAML Config Files for External Service and Ingress ► Internal Service Configuration for Ingress ► How to configure Ingress in your cluster? ► What is Ingress Controller? ► Environment on which your cluster is running (Cloud provider or bare metal) ► Demo: Configure Ingress in Minikube ► Ingress Default Backend ► Routing Use Cases ► Configuring TLS Certificate 🔗 Links: - Git Repo: https://bit.ly/3mJHVFc - Ingress Controllers: https://bit.ly/32dfHe3 - Ingress Controller Bare Metal: https://bit.ly/3kYdmLB 🔥 Helm - Package Manager 🔥 ► Package Manager and Helm Charts ► Templating Engine ► Use Cases for Helm ► Helm Chart Structure ► Values injection into template files ► Release Management / Tiller (Helm Version 2!) 🔗 Links: - Helm hub: https://hub.helm.sh/ - Helm charts GitHub Project: https://github.com/helm/charts - Install Helm: https://helm.sh/docs/intro/install/ 🔥 Persisting Data in K8s with Volumes 🔥 ► The need for persistent storage & storage requirements ► Persistent Volume (PV) ► Local vs Remote Volume Types ► Who creates the PV and when? ► Persistent Volume Claim (PVC) ► Levels of volume abstractions ► ConfigMap and Secret as volume types ► Storage Class (SC) 🔗 - Git Repo: https://bit.ly/2Gv3eLi 🔥 Deploying Stateful Apps with StatefulSet 🔥 ► What is StatefulSet? Difference of stateless and stateful applications ► Deployment of stateful and stateless apps ► Deployment vs StatefulSet ► Pod Identity ► Scaling database applications: Master and Worker Pods ► Pod state, Pod Identifier ► 2 Pod endpoints 🔥 K8s Services 🔥 ► What is a Service in K8s and when we need it? ► ClusterIP Services ► Service Communication ► Multi-Port Services ► Headless Services ► NodePort Services ► LoadBalancer Services