Kubernetes for Developers on AKS Training

Chapter 1. Docker Introduction

• What is Docker

• Docker Containers vs Traditional Virtualization

• Where Can I Run Docker?

• Docker Containers vs Traditional Virtualization

• Docker as Platform-as-a-Service

• Docker Integration

• Docker Services

• Docker Hub Container Registry

• Alternative Container Registries

• Competing Containerization Systems

• Docker Command-line

• Starting, Inspecting, and Stopping Docker Containers

• Summary

Chapter 2. Building Docker Images

• Docker Images

• Containerizing an Application

• Building The Image

• Building a Docker Images using Dockerfile

• Sample Dockerfile

• Environment Variables

• Environment Variables - Example

• Arguments

• Multi-stage Builds

• Multi-stage Builds (Continued)

• Stop at a Specific Build Stage

• RUN

• EXPOSE

• EXPOSE (Continued)

• COPY

• ADD

• CMD

• ENTRYPOINT

• CMD vs. ENTRYPOINT

• VOLUME

• Build the Image

• Build the Image (continued)

• .dockerignore

• Dockerfile – Best Practices

• Dockerfile - Best Practices (contd.)

• Published Ports

• Docker Documentation Link

• Docker Registry

• Hosting a Local Registry

• Hosting a Local Registry (continued)

• Deploying Docker Images to a Kubernetes Cluster

• Deploying to Kubernetes (continued)

• Deploying to Kubernetes (contd.)

• Running Commands in a Container

• Multi-Container Pod

• Multi-Container Pod (continued)

• Summary

Chapter 3. Azure Container Registry and Azure Container Instances

• Azure Container Registry (ACR)

• ACR Typical Workflow

• Container Registry SKUs

• Creating ACR

• Pushing Existing Docker Images into ACR

• Build Images in ACR

• Obtaining ACR Credentials

• Azure Container Instances (ACI)

• Azure Container Instance Workflow

• Working with ACI

• Working with ACI (contd.)

• Deleting Container Instances and Container Registry

• Summary

Chapter 4. Kubernetes Core Concepts

• Kubernetes Basics

• What is Kubernetes?

• Container Orchestration

• Kubernetes Architecture

• Kubernetes Concepts

• Cluster and Namespace

• Nodes

• Master

• Pod

• Using Pods to Group Containers

• Label

• Label Syntax

• Annotation

• Label Selector

• Replication Controller and Replica Set

• Service

• Storage Volume

• Secret

• Resource Quota

• Authentication and Authorization

• Routing

• Docker Registry

• Azure Kubernetes Service (AKS)

• AKS Diagram

• Deploying an AKS Cluster

• Application Deployment on AKS

• Summary

Chapter 5. Deploying and Exposing Applications

• Configuring AKS for Deployment

• Deploying to Kubernetes (contd.)

• Kubernetes Services

• Service Resources

• Service Type

• ClusterIP

• NodePort

• NodePort from Service Spec

• LoadBalancer

• LoadBalancer from Service Spec

• ExternalName

• Accessing Applications

• Service Without a Selector

• Ingress

• Ingress Resource Example

• Ingress Controller

• Service Mesh

• Summary

Chapter 6. Design

• Traditional Applications

• Virtual Machines

• Containerized Applications

• Decoupled Resources

• Transience

• Flexible Framework

• Application Resource Usage

• Measuring Resource Usage

• Docker Resource Usage Statistics

• Docker Container Resource Constraints

• Docker Run Command Resource Flags

• Using Label Selectors

• Equality Based Label Selector

• Set Based Label Selector

• Multi-Container Pods

• Sidecar Container

• Sidecar Container Uses

• Adapter Container

• Summary

Chapter 7. Kubernetes Workload

• Kubernetes Workload

• Kubernetes Workload (contd.)

• Managing Workloads

• Imperative commands

• Imperative Object Configuration

• Declarative Object Configuration

• Configuration File Schema

• Understanding API Version

• Obtaining API Versions

• Obtaining API Versions (contd.)

• Stateless Applications

• Sample Deployment Manifest File

• Working with Deployments

• Stateful Applications

• Sample Stateful Manifest File

• Sample Stateful Manifest File (Contd.)

• Working with StatefulSet

• Jobs

• Sample Job Manifest File

• Sample Job Manifest File (Contd.)

• Working with Batch Job

• DaemonSets

• DaemonSets (contd.)

• Sample Daemon Manifest File

• Rolling Updates

• Rolling Updates (Contd.)

• Summary

Chapter 8. Deployment Configuration

• Introduction to Volumes

• Container OS file system storage

• Docker Volumes

• Kubernetes Volumes

• Volume Specs

• K8S Volume Types

• Cloud Resource Types

• emptyDir

• Using an emptyDir Volume

• Other Volume Types

• Persistent Volumes

• Creating a Volume

• Persistent Volume Claim

• Persistent Volume

• Pod that uses Persistent Volume

• Dynamic Volume Provisioning

• Requesting Dynamic Storage

• Secrets

• Creating Secrets from Files

• Creating Secrets from Literals

• Using Secrets

• configMaps

• Creating configMaps from Literals

• Creating configMaps from files

• Using configMaps

• Security Context

• Security Context Usage

• Deployment Configuration Status

• Replicas

• Scaling

• Summary

Chapter 9. Shared Volume using Azure Files share

• Volumes

• Azure Disks

• Azure Files share

• Azure Files share - Workflow

• Creating a Kubernetes Secret

• Configuring the Volume in the Container Specification

• Verifying the Azure Files share is Mounted

• Summary

Chapter 10. Logging, Monitoring, and Troubleshooting

• Differences Between Logging and Monitoring

• Logging in Kubernetes

• Basic Logging

• Debugging Pods

• Debugging Pods (Contd.)

• Debugging Nodes

• Debugging Replication Controllers and Services

• Azure Monitor

• Container Insights

• Container Insights (contd.)

• Log Queries in Azure Monitor

• Log Analytics Query Language

• Logging Agents

• Fluentd and Elastic Stack

• Monitoring with Prometheus

• Alerting

• Upgrade Process

• Troubleshooting

• YAML Syntax Exceptions

• nodeSelector

• Troubleshooting a Failed Image Pull

• Resource Issues when Scaling

• Resource Issues when Scaling (contd.)

• Summary

Lab Exercises

Lab 1. Building a Docker Image with Dockerfile

Lab 2. Getting Started with Docker Compose

Lab 3. Working with Container Registry and Container Instances

Lab 4. Pushing Docker Images into ACR

Lab 5. Accessing the Kubernetes API in AKS

Lab 6. Accessing Applications in AKS

Lab 7. Deploying ACR Images to AKS

Lab 8. Working with Kubernetes Workloads in AKS

Lab 9. Implementing the Sidecar Pattern

Lab 10. Using Persistent Storage in AKS

Lab 11. Using AKS Volume with Azure File share

Lab 12. Exploring Logging and Monitoring in AKS

Lab 13. Troubleshooting