Ansible for Kubernetes
Ansible for Kubernetes
Automate app deployment on any scale with Ansible and K8s
About the Book
This book takes users on an automation journey—from building your first Kubernetes cluster with Ansible's help, to deploying and maintaining real-world, massively-scalable and highly-available applications.
- Who is this book for?
- Typographic conventions
Please help improve this book!
- Current Published Book Version Information
- About the Author
- In the beginning, there were servers
- The move to containers
- Ansible by Red Hat
- Kubernetes and the CNCF
- Examples Repository
- Ansible resources
- Kubernetes resources
Chapter 1 - Hello World!
- Installing Go
- Creating a ‘Hello world’ app in Go
- Building Hello Go
Deploying Hello Go in a container
Running Hello Go in Docker
- Building the container
- Running the container
- Hello Go app summary
- Running Hello Go in Docker
Deploying Hello Go in Kubernetes
- Installing Minikube
- Building the Hello Go container in Minikube
- Running Hello Go in Minikube
- Scaling Hello Go in Kubernetes
- Clean up Hello Go
- Hello, Go!
Chapter 2 - Automation brings DevOps bliss
- Installing Ansible
- Hello, Ansible!
- Running your first Ansible playbook
- Ansible 101 summary
Managing Kubernetes with Ansible
- Managing Minikube
- Building container images in Minikube with Ansible
- Managing Kubernetes resources with Ansible
Scaling Hello Go with Ansible
- Scaling via the existing Deployment spec
Scaling with Ansible’s
- Cleaning up Kubernetes resources with Ansible
- Ansible 101
Chapter 3 - Ansible manages containers
Ansible’s Docker modules
Pushing the container image to a registry
- Running a local container registry
Pushing an image to a Docker registry with
- Ansible Docker module summary
Building images using Ansible without a
- Relying on Roles from Ansible Galaxy
- Writing a Playbook to Build a Container Image
- Writing a Playbook to Test the Container Image
- Apache Solr container build summary
- Ansible’s Docker modules
Chapter 4 - Building K8s clusters with Ansible
Building a local Kubernetes cluster on VMs
- Prerequisites - Vagrant and VirtualBox
- A small Kubernetes cluster architecture
Vagrantfilefor local Infrastructure-as-Code
Building a Kubernetes cluster with Ansible
- Describing hosts with an inventory
- Becoming root in a playbook
- Building a server with roles
- Role configuration
- Running the cluster build playbook
- Testing the cluster with a deployment using Ansible
Debugging cluster networking issues
Fixing issues with Flannel and iptables
- Switching nftables to iptables-legacy
- Patching Flannel to use the right network interface
- Fixing issues with Flannel and iptables
- Local VM cluster summary
Building a cluster using Kubespray
- Building a cluster on VPSes using Kubespray
- Building a bare metal cluster using Raspberry Pis
- Building a local Kubernetes cluster on VMs
Chapter 5 - Build an AWS EKS Cluster with CloudFormation and Ansible
Managing AWS EKS clusters with CloudFormation
- CloudFormation template for VPC Networking
- CloudFormation template for an EKS Cluster
- CloudFormation template for an EKS Node Group
- Applying CloudFormation Templates with Ansible
- CloudFormation Templates
Authenticating to the EKS Cluster via
Deploying WordPress to the EKS Cluster
- Build the WordPress Kubernetes manifests
- Build an Ansible Playbook to deploy the manifests to EKS
- Point a custom domain at the WordPress ELB
- Run the playbook to deploy WordPress
- Managing AWS EKS clusters with CloudFormation
Chapter 6 - Manage a GKE Cluster with Terraform and Ansible
- Managing Google Cloud GKE clusters with Terraform
Chapter 7 - Development and CI Testing with Molecule, Kind, and Ansible
- Ansible playbook to deploy a Kubernetes Job
Add Molecule for development and testing
- Manage Kind with Molecule
- Test a playbook in Kind with Molecule
- Verify the playbook worked with Molecule
- Kubernetes CI Testing in GitHub Actions
Chapter 8 - Ansible’s Kubernetes integration
Chapter 9 - Hello Operator
- The Operator Pattern
- Go vs. Ansible-based Operators
- Your first Ansible-based Operator
- End-to-end testing for an Ansible-based Operator with Molecule
- Example: WordPress in EKS with an Operator
- Chapter 10 - The first real-world application
Appendix A - Using Ansible on Windows workstations
Method 1 - Use the Windows Subsystem for Linux / Bash on Ubuntu
- Installing Ansible inside Bash on Ubuntu
Method 2 - When WSL is not an option
- Set up an Ubuntu Linux Virtual Machine
- Log into the Virtual Machine
- Install Ansible
- Method 1 - Use the Windows Subsystem for Linux / Bash on Ubuntu
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