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Kubernetes

Certified Kubernetes Administrator (CKA) 

1 

Introduction to Docker & Kubernetes

  • Understanding Container Runtime Environments.

  • Working with YAML files for creating manifests.

  • Deploying Docker and understanding Docker components like Engine, Networks, Images & Registries.

  • Creating custom container images with Dockerfile

  • Why Kubernetes

  • Understanding Kubernetes architecture and
    Components.

  •  Understanding the Kubernetes Component Connectivity.

  • Studying significance of API-Server, ETCD, Kube-Scheduler, Controllers, Kubelet & Kube-Proxy.

  • Understanding Kubernetes High Availability.

2

Deploy & Manage Kubernetes Using KOPS

  • What is Kubernetes Operations (KOPS)

  • Deploying Kubernetes Production Grade Kubernetes Cluster with on AWS with KOPS.

  • Understanding components of KOPS.

  • Scaling the Kubernetes Cluster using KOPS.

  • Manipulating KOPS configuration for reducing the bill.

  • Accessing Kubernetes cluster with Kubeconfig

  • Running Kubernetes basic cluster commands.

3

Deploy & Manage Kubernetes POD's

  • Running Kubectl Commands vs. Deploying Manifests

  • Overview about POD, Deployment, Replica Set, Service & Namespaces.

  • Deploying, Managing & Troubleshooting PODs.

  • Deep dive through POD, POD Components, POD-Sidecar, kube-scheduler life cycle.

  • Managing PODs with EXEC, port-forwarding, POD Metadata & POD Environment variables.

  • Disadvantages of running PODS and Intro to Deployments.

  • Deep dive with Deployments, Replica Set & Replication Controller.

  • Differences and use cases of Replica Set & Daemonset.

4

Creating & Integrating Kubernetes Services

  • Understating Kubernetes Service and its importance.

  • Deep dive on Kubernetes Services and understanding Traffic Flow.

  • Creating ClusterIP, NodePort, Load Balancer & Headless Service.

  • Understanding & Creating Liveness & Readiness Probes.

  • Understanding and Creating Ingress Controllers and Ingress Services.

  • Configure AWS Load Balancer with Ingress controllers.

5

Kubernetes Advanced Scheduling

  • Understanding Labels & Annotations

  • Configuring Labels & Annotations at Node & PODs.

  • Understanding how Taints and Tolerations work.

  • Configuring Node Taints and POD Tolerations.

  • Understanding and Configuring Node Affinity.

  • Understanding and Configuring POD Affinity.

6

Manage Kubernetes Storage

  • Understanding Kubernetes Persistence and Non-Persistent Storage.

  • Creating non-persistent volumes - emptydir, gitrepo & host-path.

  • Deep dive in to Kubernetes Persistence Volumes (PV).

  • Creating Persistent Volume Claims (PVC) with Persistence Volumes.

  • Understanding Kubernetes Storage Classes and Dynamic Volume- provisioning.

7

Configs & Secrets in Kubernetes

  • Passing command-line variables containers.

  • Setting environment variables for containers.

  • Intro to ConfigMaps.

  • Decoupling configuration with ConfigMap

  • Working with sensitive data in Kubernetes.

  • Creating and using Secrets in Kubernetes.

8

Securing Kubernetes Cluster

  • How authentication works in Kubernetes.

  • Deepdive into Kubernetes Namespaces.

  • Configuring user access to the cluster.

  • Creating and working with service accounts.

  • Understanding RBAC in Kubernetes.

  • Creating Role and Role Bindings.

  • Creating Cluster Roles and Cluster Role Bindings.

  • Understanding Blue-Green Deployments & Rolling Updates.

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9

Troubleshooting & Updating Kubernetes Cluster

  • Working with logs in Kubernetes.

  • Working with Master and Worker Node Failure.

  • Find and retrieve information about the cluster components.

  • Performing Rolling Update with KUBECTL with no downtime & challenges with KUBECTL rolling updates.

  • Running KUBECTL cheat sheet commands.

10

Kubernetes Jobs & cronJobs

  • Understanding differences between Job & Cronjob's

  • Creating a Job and understanding the attributes.

  • Use cases for Jobs.

  • Scheduling with Cron Jobs.

  • Use cases for Cron Jobs.

11

Kubernetes Cluster with Rancher & K3S

  • Understanding Rancher & Components

  • Deploying Racher and access dashboards.

  • Deploy On-Prem Kubernetes Cluster with Rancher

  • What is K3S?

  • Deploying Kubernetes Cluster with K3S application.

  • Advantages of K3S.

12

Kubernetes POD Level Security with
Network Policies 

  • Understanding Kubernetes Network Policies.

  • Restricting and Allow Traffic between Pods.

  • Allow & Restrict traffic between Namespaces.

  • Restricting & Allow traffic based on Application Ports.

13

Manage Azure AKS & AWS EKS

  • Understanding Azure AKS Architecture

  • Deploying Azure AKS Cluster

  • Understanding Node Pools, Scaling and Upgrading.

  • AKS Cluster Access and Azure RBAC

  • CI & CD Deployment with Azure DevOps.

  • Kubenet vs Azure CNI

  • Integrating with Application Gateway & Azure Firewall

  • Understanding AWS EKS Architecture

  • Deploying workloads on EKS Cluster.

  • Adding &Removing resources to the cluster.

  • RBAC on AWS EKS.

14

CI/CD Tools, Helm Package Manager

  • Jenkins & Azure DevOps Overview

  • Installing Jenkins and installing necessary plugins.

  • Integrating Jenkins with Kubernetes Cluster.

  • CI/CD with Jenkins Pipelines.

  • Overview on GitOps.

  • Understanding and Deploying ArgoCD application.

  • Deploying & Updating application using ArgoCD GitOps way.

  • Understanding & Installing Helm 3

  • Creating Helm Chart and understanding folder structure.

  • Working with Values.yaml file.

  • Creating custom charts for Nginx & EFS Provisioner.

  • Creating & linting Helm Packages.

  • Understanding Helm Chart Repositories.

  • Downloading & Installing applications for Helm Repositories.

15

Service Mesh with Istio

  • What is Istio &  What is the purpose?

  • Understanding Istio Architecture.

  • Deploy Istio on Kubernetes Cluster.

  • Enable Istio on namespace and deploy application

  • Checking Sidecars, Kiali, Jaeger

  • Deploying Virtual Service & Gateways

16

Monitoring & Logging Cluster Maintenance

  • Monitoring Cluster Components.

  • Working with Logs and application logs.

  • Performing cluster upgrade.

  • Backup and Restore of Cluster.

  • Overview about Prometheus monitoring.

  • Deploying Prometheus and Grafana on Kubernetes.

  • Creating dashboards for monitoring.

  • Understanding Alert Manager.

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