This repository contains code examples and documentation for learning how applications can be developed with Kubernetes

Last update: Oct 16, 2022

Related tags

DevOps Tools kubernetes vagrant vuejs ingress django-rest-framework cloud-native helm-charts prometheus-operator skaffold-example microk8s bigbitbus

Overview

BigBitBus KAT Components

Click on the diagram to enlarge, or follow this link for detailed documentation

Introduction

Welcome to the BigBitBus Kubernetes Automation Toolkit (KAT).

KAT is a set of software code and documentation to help understand the big picture of how a web application is developed for and deployed into a Kubernetes environment.

TL;DR If you want to directly deploy the KAT web application in a Kubernetes cluster on your PC, head over to our quickstart.

Most components of the Kubernetes cloud native ecosystem are extremely well documented, but its hard to find end-to-end examples that illustrate how these components work together in the context of an application. The main idea is to show you the breadth of several cloud-native technologies working together to support an application deployed on Kubernetes. We provide links to high quality documentation for deep dives on the concepts our examples illustrate. Our examples will show you how it all comes together so you can get productive, fast. You can then choose to learn more about specific parts of the cloud native stack as your situation demands.

We also provide a few Docker Compose "alternatives" in our some of our code directories so developers can compare and contrast a Docker workflow with a Kubernetes workflow.

From here, we recommend you start with a review of some Kubernetes and related concepts we have put together. Or, if you want to directly go to the code and examples you can navigate the folders in the repository, the table below will launch you right in.

What is where?

Category	File or Directory	Description
Documentation	documentation/README.md	Start here for an overview and links to other documents
Todo Django API	code/app-code/api/todo-python-django	Django Python todo backend; includes Helm chart deployed using Skaffold
Postgresql DB	code/k8s-common-code/postgres-db	Installing and configuring Postgresql database into the Kubernetes cluster using Helm charts
Vuejs Todo Single Page Application	code/app-code/frontend/todo-vuejs	Todo application implemented in Vuejs; includes Helm chart deployed using Skaffold
Monitoring	code/k8s-common-code/monitoring	Installing and configuring monitoring with Prometheus and Grafana into the Kubernetes cluster using standard Helm charts created by the Prometheus community
Kubernetes Dashboard	code/k8s-common-code/k8sdashboard	Deploying the Kubernetes dashboard, a browser-based GUI view of the Kubernetes cluster

Quickstart

Deployment	File or Directory	Description
In Cloud	documentation/cloudvm.md	Deploy KAT on a Cloud
Local System	documentation/quickstart-vagrant.md	Deploy KAT on your Local System

License

All code and configuration in the BigBitBus KAT repository (code files contained in this directory and all subdirectories) is licensed under the Apache 2.0 License.

All documentation, media and images in the BigBitBus KAT repository (non-code files contained in this directory and all subdirectories) are licensed under the CC BY-NC License.

Please click the license links for details.

Official Python client library for kubernetes

Kubernetes Python Client Python client for the kubernetes API. Installation From source: git clone --recursive https://github.com/kubernetes-client/py

5.4k Jan 2, 2023

A Kubernetes operator that creates UptimeRobot monitors for your ingresses

This operator automatically creates uptime monitors at UptimeRobot for your Kubernetes Ingress resources. This allows you to easily integrate uptime monitoring of your services into your Kubernetes deployments.

49 Dec 14, 2022

A Simple script to hunt unused Kubernetes resources.

K8SPurger A Simple script to hunt unused Kubernetes resources. Release History Release 0.3 Added Ingress Added Services Account Adding RoleBindding Re

202 Nov 19, 2022

Run Oracle on Kubernetes with El Carro

El Carro is a new project that offers a way to run Oracle databases in Kubernetes as a portable, open source, community driven, no vendor lock-in container orchestration system. El Carro provides a powerful declarative API for comprehensive and consistent configuration and deployment as well as for real-time operations and monitoring.

205 Dec 30, 2022

Linux, Jenkins, AWS, SRE, Prometheus, Docker, Python, Ansible, Git, Kubernetes, Terraform, OpenStack, SQL, NoSQL, Azure, GCP, DNS, Elastic, Network, Virtualization. DevOps Interview Questions

35.1k Jan 2, 2023

Chartreuse: Automated Alembic migrations within kubernetes

Comments

postgresql db user and password config does't work

postgresqlPassword: B1gB1tBu5 does NOT work as expected.

gongpengjun@mbp kubernetes-automation-toolkit$ vagrant ssh
Last login: Wed Feb 23 14:12:58 2022 from 10.0.2.2
vagrant@ubuntu2004:~$ kubectl get secret --namespace pg pgdb-postgresql -o jsonpath="{.data.postgres-password}" | base64 --decode;echo
P2zJdANSBT

vagrant@ubuntu2004:~$ microk8s kubectl get pods -n pg
NAME                READY   STATUS    RESTARTS   AGE
pgdb-postgresql-0   1/1     Running   0          12h
vagrant@ubuntu2004:~$ microk8s kubectl exec -it pgdb-postgresql-0 -n pg -- bash
I have no name!@pgdb-postgresql-0:/$ env|grep POSTGRES_
POSTGRES_PASSWORD=P2zJdANSBT
I have no name!@pgdb-postgresql-0:/opt/bitnami/postgresql/bin$ psql -U "postgres" -h 127.0.0.1 -p 5432
Password for user postgres: P2zJdANSBT
psql (11.9)
Type "help" for help.

postgres=# \du
                                   List of roles
 Role name |                         Attributes                         | Member of
-----------+------------------------------------------------------------+-----------
 postgres  | Superuser, Create role, Create DB, Replication, Bypass RLS | {}

vagrant_up.log

opened by gongpengjun 1

Releases(1.0.0)

1.0.0(Jan 5, 2021)

This is the first GA release of the Kubernetes Automation Toolkit.

It has been tested on local PCs as well as multiple cloud VMs.
Source code(tar.gz)
Source code(zip)
v0.1(Dec 18, 2020)

This is an initial release at the time we made the KAT public.

Please read the documentation (markdown files) starting with the root directory to learn more about what KAT is.
Source code(tar.gz)
Source code(zip)
candair-0.4(Dec 18, 2020)

Source code(tar.gz)
Source code(zip)