GeoffMahugu

{
  "name": "angular-io-example",
  "version": "1.0.0",
  "private": true,
  "description": "Example project from an angular.io guide.",
  "scripts": {
    "lint": "tslint ./src/**/*.ts -t verbose",
    "start": "ng serve",
    "test": "ng test",
    "build": "ng build --prod",

GeoffMahugu

export ANDROID_HOME=$HOME/Android/Sdk
export PATH=$PATH:$ANDROID_HOME/tools


export GRADLE_HOME=/opt/gradle/gradle-5.6.2
export PATH=${GRADLE_HOME}/bin:${PATH}

GeoffMahugu

Kubernetes CheatSheet

This documentation lays out a step by step process of getting started on Kubernetes.

Install docker

To install docker we will switch to the root user just to make our work easier.

Ref: https://docs.docker.com/engine/install/ubuntu/

GeoffMahugu

AGILION K8S CLUSTER MAINTAINACE

This document contains descripion on how to maintain agilion's cluster.

Key Assumptions

* Basic understanding of kubernetes(k8s) and microservice architecture.
* Cluster is up and running (There will be commands to verify the cluster status)
* Master Node configuration:
  -- RAM       >= 2 GB 

GeoffMahugu

Onve you settup a private repo, you will need an access token to access the image.
To login to GitHub repo, first create a file at and add your github password:

``nano ~/TOKEN.txt``

Then run this command, replacing USERNAME with your github username.

``$ cat ~/TOKEN.txt | docker login https://docker.pkg.github.com -u USERNAME --password-stdin
``

GeoffMahugu

In this documentation, we are going to set-up an nfs-server, nfs-client and test the network and eventually mount a persistent storage into the nfs server.

1. Install NFS

We will install an NFS server on an external machine (In my case: 192.168.1.100) to reduce the risk of system-failure and also allow for hardware optimization. (SSD and RAM)

For this case, we will be using a Unix environment:

• SSH to Storage Server

GeoffMahugu

# Prerequisites.

# Instalation 
Install MetalLB for bare metal installation.
REF: https://metallb.universe.tf/installation/

kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.9.3/manifests/namespace.yaml
kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.9.3/manifests/metallb.yaml
# On first install only
kubectl create secret generic -n metallb-system memberlist --from-literal=secretkey="$(openssl rand -base64 128)"

GeoffMahugu

Hadoop(HDFS) Kubernetes Setup

Ref: https://hub.kubeapps.com/charts/stable/hadoop

Ref: https://gist.github.com/TeemuKoivisto/5632fabee4915dc63055e8e544247f60

Ref Chart: https://github.com/helm/charts/tree/master/stable/hadoop

Re docker: https://www.youtube.com/watch?v=dLTI2HN9Ejg

GeoffMahugu

kind: ServiceAccount
apiVersion: v1
metadata:
  name: nfs-client-provisioner
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: nfs-client-provisioner-runner
rules:

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apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: managed-nfs-storage
  labels:
    type: nfs
    storage: nfs
provisioner: example.com/nfs
volumeBindingMode: WaitForFirstConsumer
parameters: