About this challenge

This challenge is to verify your ability to

  • Use Helm
  • Deploy a MongoDB StatefulSet Chart
  • Create a HA Mongo DB cluster Helm

About Helm

  • Helm helps you manage Kubernetes applications — Helm Charts help you define, install, and upgrade even the most complex Kubernetes application.
  • Use this link to understand more about Helm Helm

Why this challenge:

Milestones in Challenges Status
You setup the Deployment Environment ( OKE ) ✔️
You moved the repos to the Development Environment ( DevCS ) ✔️
You setup the CI/CD pipeline on Wercker / Oracle Container Pipeline ✔️
You prepared the k8s Cluster and installed MongoDB-HA You are Here️
You Deployed the Front End and Backend End API ❌
You Setup Cluster Monitoring ❌

How do I get started with Helm

  • If you have setup the Kubernetes Cluster successfully, The Server Side of Helm ( Tiller ) comes pre-installed in OKE

To setup the Client Side of Helm,

  • Setup chocolatey on your Windows laptop. For Mac and Linux Skip this step
  • Install Chocolatey by running this on PowerShell as an admin 
      @"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

  • Setup Kubernetes-cli by running this command

      choco install kubernetes-cli
  • Copy the KUBECONFIG file to the required location

  • Setup Helm Client by running this command

      choco install kubernetes-helm

  • Run

      helm init
  • If Helm is successfully setup without errors you are now free to deploy the MongoDB Chart

Deploy MongoDB-HA

Create namespace

kubectl create namespace <Your FirstName>

Deploy code

helm repo add stable https://kubernetes-charts.storage.googleapis.com/
helm install --name <Your LastName> --namespace <Your FirstName> stable/mongodb-replicaset

What will we Verify here :

  • Have you successfully deployed the Mongo-DB Cluster using helm status
  • Verify if all Pods are in running state and verify connectivity from within the cluster in MongoDB

Submission Format:

  • A Write Up with 5 Bullet points not exceeding 50 words in each point, about the learnings while **deploying on Kubernetes** using **helm**.
  • Send your Email with
    • Subject Line: OCI Challenge-4 < Your Name >
    • Email Recepients: Vamsi && Laksh

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