https://github.com/kaitoy/ansible-k8s

Ansible Playbook to setup Kubernetes Cluster
https://github.com/kaitoy/ansible-k8s

ansible ansible-playbook kubernetes kubernetes-cluster kubernetes-setup

Last synced: 4 months ago
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Ansible Playbook to setup Kubernetes Cluster

• Host: GitHub
• URL: https://github.com/kaitoy/ansible-k8s
• Owner: kaitoy
• License: mit
• Created: 2018-06-03T11:33:09.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2024-06-30T13:34:31.000Z (7 months ago)
• Last Synced: 2024-07-03T00:50:13.707Z (7 months ago)
• Topics: ansible, ansible-playbook, kubernetes, kubernetes-cluster, kubernetes-setup
• Language: Jinja
• Homepage:
• Size: 263 KB
• Stars: 5
• Watchers: 3
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Ansible Playbook to setup Kubernetes Cluster

## Prerequisites for Ansible Controller

* Ansible 2.5.x installed

* Python package "netaddr" is installed

* Git installed

## Kubernetes Cluster to setup

* Kubernetes: v1.30.2

    * Single node cluster

    * kubelet,kube-proxy, kube-apiserver, kube-controller-manager, kube-scheduler, and etcd are managed by systemd (i.e. not containerized)

        * kubelet and kube-proxy run as root, and the rest run as non-root

    * Communication between k8s components is encrypted by TLS

    * Authentication by x509 client certificates

    * TLS Bootstrapping

        * Bootstrap token

        * Auto approval for CSRs

    * [Certificate Rotation](https://kubernetes.io/docs/tasks/tls/certificate-rotation/) is enabled

    * etcd 3.5.14

    * [Calico](https://www.tigera.io/project-calico/) 3.28.0

    * [CoreDNS](https://github.com/coredns/coredns) 1.11.1

    * Service cluster IP range: 10.0.0.0/16

    * Cluster CIDR: 10.32.0.0/16

    * [Proxy mode](https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies): ipvs

    * Using [KubeletConfiguration](https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ ), [KubeProxyConfiguration](https://github.com/kubernetes/kube-proxy/blob/master/config/v1alpha1/types.go), and [KubeSchedulerConfiguration](https://kubernetes.io/docs/reference/config-api/kube-scheduler-config.v1/)

* Tools

    * [Helm](https://helm.sh/) 3.15.2

## How to use

```sh

$ su -

# git clone https://github.com/kaitoy/ansible-k8s.git

# cd ansible-k8s

# sh play.sh

```