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Getting Started with ReplicaSets

ReplicaSets

6 Lessons

Go hands-on with defining, creating, and managing ReplicaSets for scalable and fault-tolerant applications.

Creating ReplicaSets

Quiz Yourself on ReplicaSets

Operating ReplicaSets

Getting Started with Communication

Services

11 Lessons

Grasp the fundamentals of Kubernetes Services for stable pod communication and deployment.

Creating Services by Exposing Ports

Creating Services through Declarative Syntax

Splitting the Pod and Establishing Communication through Services

Creating the Split API Pods

Defining Multiple Objects in the Same YAML File

Discovering Services

Quiz Yourself on Services

Getting Started with Deploying Releases

Deployments

15 Lessons

Dig into Kubernetes Deployments for zero-downtime updates, rollback mechanisms, and scaling methods.

Deploying New Releases

Defining a Zero-Downtime Deployment

Updating Deployments

Creating a Zero-Downtime Deployment

Rolling Back or Rolling Forward?

Playing Around with the Deployment

Rolling Back Failed Deployments

Merging Everything into the Same YAML Definition

Updating Multiple Deployments

Scaling Deployments

Quiz Yourself on Deployments

Getting Started with Ingress

Ingress

10 Lessons

Follow the process of configuring, managing, and validating Ingress to streamline Kubernetes external access.

Services and External Access

Enabling Ingress Controllers

Creating Ingress Resources Based on Paths

Creating Ingress Resources Based on Domains

Creating an Ingress Resource with the Default Backend

Quiz Yourself on Ingress

Getting Started with Volumes

Volumes

9 Lessons

Build on Kubernetes volumes to manage state, access resources, and facilitate configurations.

Accessing a Host’s Resources through hostPath Volumes

Running the Pod after mounting hostPath

Using hostPath Volume Type to Inject Configuration Files

Working with the New Prometheus Configuration

Non-persisting State

Persisting State through the emptyDir Volume Type

Quiz Yourself on Volumes

Getting Started with ConfigMaps

ConfigMaps

11 Lessons

Learn how to use ConfigMaps for flexible configuration management in Kubernetes deployments.

Injecting a Configuration from a Single File

Injecting Configurations from Multiple Files

Injecting Configurations from Key/Value Literals

Injecting Configurations from Environment Files

Converting ConfigMap Output to Environment Variables

Defining ConfigMaps as YAML

The Best Way to Configure an Application

Quiz Yourself on ConfigMaps

Getting Started with Secrets

Secrets

9 Lessons

Discover the logic behind Kubernetes Secrets, their creation, management, and security.

Exploring Built-In Secrets

Creating Generic Secrets

Mounting Generic Secrets

Secrets Compared to ConfigMaps

How to Secure Secrets

Quick Quiz!

Getting Started with Cluster Division

10.

Namespaces

11 Lessons

Work your way through managing Kubernetes namespaces for efficient cluster segmentation and isolation.

Deploying the First Release

Exploring Virtual Clusters

Exploring the Existing Namespaces

Creating a New Namespace

Deploying to a New Namespace

Communicating between Namespaces

Deleting a Namespace and All Its Objects

Quick Quiz!

Getting Started with Security

11.

Securing Kubernetes Clusters

15 Lessons

Grasp the fundamentals of securing Kubernetes clusters through RBAC, permissions, roles, and namespaces.

Accessing the Kubernetes API

Authorizing Requests and Creating a Cluster

Creating Users to Access the Cluster

Accessing the Cluster as a User

Exploring the RBAC Authorization

Exploring Predefined ClusterRoles

Creating RoleBindings

Creating Cluster Role Bindings

Combining RoleBindings with Namespaces

Granting Access as a Release Manager

Replacing Users with Groups

Quiz Yourself on Securing Kubernetes

Getting Started with Managing Resources

12.

Managing Resources

17 Lessons

Solve problems in Kubernetes by mastering resource management, allocation, and Quality of Service (QoS).

Defining Container Memory and CPU Resources

Getting Practical with Container Memory and CPU Resources

Measuring the Actual Memory and CPU Consumption

Allocating Insufficient Resource than the Actual Usage

Allocating Excessive Resources

Adjusting Resources Based on Actual Usage

Exploring Quality of Service (QoS) Contracts

Examining QoS in Action

Defining Resource Defaults and Limitations within a Namespace

The Mismatch Scenario

Defining Resource Quotas for a Namespace

Exploring the Effects by Violating Quotas

Exploring the Types of Quotas

Quiz yourself on Managing Resources

Getting Started with a Production-Ready Clusters

13.

Creating A Production-Ready Kubernetes Cluster

23 Lessons

Follow the process of creating, managing, and updating a production-ready Kubernetes cluster with kOps.

Kubernetes Operations (kOps) Project

Preparing for the Cluster Setup: AWS CLI and Region

Preparing for the Cluster Setup: IAM Group and User

Preparing for the Cluster Setup: Availability Zones and SSH Keys

Creating a Cluster: Creating an S3 Bucket and Installing kOps

Creating a Cluster: Discussing the Specifications

Creating a Cluster: Running and Verification

Exploring the Components That Constitute the Cluster

Updating the Cluster

Sequential Breakdown and Verification of the Update Process

Upgrading the Cluster Manually: Changing the Kubernetes Version

Exploring and Verifying the Output

Upgrading the Cluster Automatically

Accessing the Cluster: Understanding the Protocol

Accessing the Cluster: Adding the Load Balancer

Deploying Applications

Exploring High Availability and Fault Tolerance of a Cluster

Giving Others Access to the Cluster

Destroying the Cluster

Quiz Yourself on Clusters

Getting Started with State Persistence

Create a Production-Ready Kubernetes Cluster

Cloud Lab

14.

Persisting State

15 Lessons

Practice using Kubernetes for state persistence, deployment, and dynamic volume management in AWS environments.

Deploying Stateful Applications without Persisting State

Analyzing Failure of the Stateful Application

Creating AWS Volumes

Creating Kubernetes Persistent Volumes

Claiming Persistent Volumes

Creating Deployment for Attaching Claimed Volumes to Pods

Verifying State Persistence and Exploring Failures

Removing Resources and Exploring Effects

Using Storage Classes to Dynamically Provision PersistentVolumes

Using Default StorageClasses

Defining Storage Classes

Creating StorageClasses

Quiz Yourself on Persistent States

Creating a Local Kubernetes Cluster with minikube

Deploy Stateful Applications with Persistent State

Cloud Lab

Create a Docker Swarm

Cloud Lab

15.

Appendix: Running a Kubernetes Cluster Locally

5 Lessons

Get familiar with setting up and managing a local Kubernetes cluster using Minikube.

Exploring the Options

Installing kubectl

Installing minikube

Exploring minikube Commands

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Viktor Farcic

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