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

Overview

BigBitBus KAT Components

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.

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Comments
  • postgresql db user and password config does't work

    postgresql db user and password config does't work

    postgresqlPassword: B1gB1tBu5 does NOT work as expected.

    [email protected] kubernetes-automation-toolkit$ vagrant ssh
    Last login: Wed Feb 23 14:12:58 2022 from 10.0.2.2
    [email protected]:~$ kubectl get secret --namespace pg pgdb-postgresql -o jsonpath="{.data.postgres-password}" | base64 --decode;echo
    P2zJdANSBT
    
    [email protected]:~$ microk8s kubectl get pods -n pg
    NAME                READY   STATUS    RESTARTS   AGE
    pgdb-postgresql-0   1/1     Running   0          12h
    [email protected]:~$ microk8s kubectl exec -it pgdb-postgresql-0 -n pg -- bash
    I have no [email protected]:/$ env|grep POSTGRES_
    POSTGRES_PASSWORD=P2zJdANSBT
    I have no [email protected]:/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
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