Kubernetes Cookbook: Building Cloud Native Applications, 2nd Edition

✍ Scribed by Sameer Naik

• Publisher: O'Reilly Media
• Year: 2023
• Tongue: English
• Leaves: 228
• Edition: 2
• Category: Library

✦ Synopsis

Kubernetes is the de facto standard for container orchestration and distributed applications management across a microservices framework. With this practical cookbook, you'll learn hands-on Kubernetes recipes for automating the deployment, scaling, and operations of application containers across clusters of hosts.

In this fully updated second edition, Sameer Naik, Sébastien Goasguen, and Jonathan Michaux from TriggerMesh provide a problem-solution-discussion format with easy lookups to help you find the detailed answers you need—fast. Kubernetes lets you deploy your applications quickly and predictably, so you can efficiently respond to customer demand. This cookbook delivers the essential knowledge that developers and system administrators need to get there.

Recipes in this cookbook focus on:

Creating a Kubernetes cluster

Using the Kubernetes command-line interface

Managing fundamental workload types

Working with...

✦ Table of Contents

Preface
Who Should Read This Book
Why We Wrote This Book
Navigating This Book
A Note on Kubernetes Releases
Technology You Need to Understand
Conventions Used in This Book
Using Code Examples
O’Reilly Online Learning
How to Contact Us
Acknowledgments
1. Getting Started with Kubernetes
1.1. Installing the Kubernetes CLI, kubectl
1.2. Installing Minikube to Run a Local Kubernetes Instance
1.3. Using Minikube Locally for Development
1.4. Starting Your First Application on Minikube
1.5. Using kind to Run Kubernetes Locally
1.6. Using Kubernetes in Docker Desktop
1.7. Switching kubectl Contexts
1.8. Switching Contexts and Namespaces Using kubectx and kubens
2. Creating a Kubernetes Cluster
2.1. Preparing a New Node for a Kubernetes Cluster
2.2. Bootstrapping a Kubernetes Control-Plane Node
2.3. Installing a Container Network Add-on for Cluster Networking
2.4. Adding Worker Nodes to a Kubernetes Cluster
2.5. Deploying the Kubernetes Dashboard
2.6. Accessing the Kubernetes Dashboard
2.7. Deploying the Kubernetes Metrics Server
2.8. Downloading a Kubernetes Release from GitHub
2.9. Downloading Client and Server Binaries
2.10. Using systemd Unit Files for Running Kubernetes Components
2.11. Creating a Kubernetes Cluster on Google Kubernetes Engine
2.12. Creating a Kubernetes Cluster on Azure Kubernetes Service
2.13. Creating a Kubernetes Cluster on Amazon Elastic Kubernetes Service
3. Learning to Use the Kubernetes Client
3.1. Listing Resources
3.2. Deleting Resources
3.3. Watching Resource Changes with kubectl
3.4. Editing Objects with kubectl
3.5. Asking kubectl to Explain Resources and Fields
4. Creating and Modifying Fundamental Workloads
4.1. Creating a Pod Using kubectl run
4.2. Creating a Deployment Using kubectl create
4.3. Creating Objects from File Manifests
4.4. Writing a Pod Manifest from Scratch
4.5. Launching a Deployment Using a Manifest
4.6. Updating a Deployment
4.7. Running a Batch Job
4.8. Running a Task on a Schedule Within a Pod
4.9. Running Infrastructure Daemons per Node
5. Working with Services
5.1. Creating a Service to Expose Your Application
5.2. Verifying the DNS Entry of a Service
5.3. Changing the Type of a Service
5.4. Deploying an Ingress Controller
5.5. Making Services Accessible from Outside the Cluster
6. Managing Application Manifests
6.1. Installing Helm, the Kubernetes Package Manager
6.2. Adding Chart Repositories to Helm
6.3. Using Helm to Install Applications
6.4. Inspecting the Customizable Parameters of a Chart
6.5. Overriding Chart Parameters
6.6. Getting the User-Supplied Parameters of a Helm Release
6.7. Uninstalling Applications with Helm
6.8. Creating Your Own Chart to Package Your Application with Helm
6.9. Installing Kompose
6.10. Converting Your Docker Compose Files to Kubernetes Manifests
6.11. Converting Your Docker Compose File to a Helm Chart
6.12. Installing kapp
6.13. Deploying YAML Manifests Using kapp
7. Exploring the Kubernetes API and Key Metadata
7.1. Discovering the Kubernetes API Server’s Endpoints
7.2. Understanding the Structure of a Kubernetes Manifest
7.3. Creating Namespaces to Avoid Name Collisions
7.4. Setting Quotas Within a Namespace
7.5. Labeling an Object
7.6. Using Labels for Queries
7.7. Annotating a Resource with One Command
8. Volumes and Configuration Data
8.1. Exchanging Data Between Containers via a Local Volume
8.2. Passing an API Access Key to a Pod Using a Secret
8.3. Providing Configuration Data to an Application
8.4. Using a Persistent Volume with Minikube
8.5. Understanding Data Persistency on Minikube
8.6. Storing Encrypted Secrets in Version Control
9. Scaling
9.1. Scaling a Deployment
9.2. Using Horizontal Pod Autoscaling
9.3. Automatically Resizing a Cluster in GKE
9.4. Automatically Resizing an Amazon EKS Cluster
10. Security
10.1. Providing a Unique Identity for an Application
10.2. Listing and Viewing Access Control Information
10.3. Controlling Access to Resources
10.4. Securing Pods
11. Monitoring and Logging
11.1. Accessing the Logs of a Container
11.2. Recovering from a Broken State with a Liveness Probe
11.3. Controlling Traffic Flow to a Pod Using a Readiness Probe
11.4. Protecting Slow-Starting Containers Using a Start-up Probe
11.5. Adding Liveness and Readiness Probes to Your Deployments
11.6. Accessing Kubernetes Metrics in the CLI
11.7. Using Prometheus and Grafana on Minikube
12. Maintenance and Troubleshooting
12.1. Enabling Autocomplete for kubectl
12.2. Removing a Pod from a Service
12.3. Accessing a ClusterIP Service Outside the Cluster
12.4. Understanding and Parsing Resource Statuses
12.5. Debugging Pods
12.6. Influencing a Pod’s Start-up Behavior
12.7. Getting a Detailed Snapshot of the Cluster State
12.8. Adding Kubernetes Worker Nodes
12.9. Draining Kubernetes Nodes for Maintenance
13. Service Meshes
13.1. Installing the Istio Service Mesh
13.2. Deploying a Microservice with an Istio Sidecar
13.3. Routing Traffic Using an Istio Virtual Service
13.4. Rewriting a URL Using an Istio Virtual Service
13.5. Installing the Linkerd Service Mesh
13.6. Deploying a Service into the Linkerd Mesh
13.7. Routing Traffic to a Service in Linkerd
13.8. Authorizing Traffic to the Server in Linkerd
14. Serverless and Event-Driven Applications
14.1. Installing the Knative Operator
14.2. Installing the Knative Serving Component
14.3. Installing the Knative CLI
14.4. Creating a Knative Service
14.5. Installing the Knative Eventing Component
14.6. Deploying a Knative Eventing Source
14.7. Enabling Knative Eventing Sources
14.8. Installing Event Sources from TriggerMesh
15. Extending Kubernetes
15.1. Compiling from Source
15.2. Compiling a Specific Component
15.3. Using a Python Client to Interact with the Kubernetes API
15.4. Extending the API Using Custom Resource Definitions
A. Resources
General
Tutorials and Examples
Index