Kubernetes Cluster in Local Ubuntu Environment

1. Overview

• Local Ubuntu Environment k8scluster Deployment Scripts.

1.1 Kubernetes Cluster URLs

1. Kubernetes Cluster Dashboard
   • http://192.168.100.81:31000/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/#/node?namespace=monitoring
2. Kubernetes Cluster Monitoring System
   • Grafana URLs
     • http://192.168.100.81:30333/login
   • Prometheus URLs
     • http://192.168.100.81:30334/graph?g0.expr=&g0.tab=1&g0.stacked=0&g0.show_exemplars=0&g0.range_input=1h
   • AlertManager URLs
     • http://192.168.100.81:30335/#/alerts

2. Usage

# cd into the local repository directory after git clone
cd local_repo_dir

# python3 main.py -h
usage: main.py [-h] [--nginx_proxy NGINX_PROXY] [--monitoring MONITORING] [--minikube MINIKUBE] [--cluster CLUSTER] [--ansible ANSIBLE]

The K8S Cluster Deployment Command Line Tools

options:
  -h, --help            show this help message and exit
  --nginx_proxy NGINX_PROXY
                        The Nginx Proxy Operation: start/stop
  --monitoring MONITORING
                        The kubernetes Cluster Monitoring System Operations: install/uninstall
  --minikube MINIKUBE   The kubernetes Cluster Minikube Operations: install/uninstall/start/stop
  --cluster CLUSTER     The kubernetes Cluster Deployments Operations: install/uninstall
  --ansible ANSIBLE     The Ansible Deployments for Kubernetes Cluster: install/uninstall

3. Functions:

3.1 Installation Process

1. Install Prerequisites.(yq, kubectl, skopeo, helm, docker and kind)
2. Install Kubernetes Cluster (by using minikube in local environment).
3. Install the Monitoring System (Prometheus and Grafana) of the Kubernetes Cluster.

3.2 Uninstallation Process

1. Uninstall Prerequisites.(yq, kubectl, skopeo, helm, docker and kind)
2. Uninstall Kubernetes Cluster (by using minikube in local environment).
3. Uninstall the Monitoring System (Prometheus and Grafana) of the Kubernetes Cluster.

4. Scripts brief Introduction

1. prerequisites_install.py

   • Scripts for install Kubernetes cluster prerequisites, such as yq, kubectl, skopeo, helm, docker and kind.

2. prerequisites_uninstall.py

   • Scripts for uninstall Kubernetes cluster prerequisites, such as yq, kubectl, skopeo, helm, docker and kind.

3. minikube_install.py

   • Using the minikube as the default kubernetes in local ubuntu environment. Installing the minikube kubernetes service, and config cluster dashboard.

4. minikube_uninstall.py

   • Uninstallation for minikube kubernetes service

5. minikube_start.py

   • Starting the minikube kubernetes service

6. monitoring_install.py

   • Installing the kube-prometheus, which includes prometheus, grafana, and alertmanager, as the monitoring system of the kubernetes cluster

7. monitoring_uninstall.py

   • Uninstalling the kube-prometheus, which is the monitoring system of the kubernetes cluster.

8. ansible_install.py

   • Installing the Ansible, which is the automation tools for further kubernetes cluster deployments.

9. ansible_install.py

   • Uninstalling the Ansible.

10. utils_tools.py

    • Python functions for execute linux commands, and templates the configuration files from jinja2 files

11. constants.py

    • Constants values definition, such as file path and so on.