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kind Playbook

  • kind (Kubernetes IN Docker) is a tool for running local Kubernetes clusters using Docker container “nodes”.
  • kind was primarily designed for testing Kubernetes itself, but may be used for local development or CI.
  • kind uses kubeadm to create clusters, and it supports multi-node clusters.

Phase #1 : Setup Single Node Cluster & Deploy WordPress

  • Install
# Mac OS
# via homebrew (https://brew.sh/)
brew install kind
# Windows
> Get-ExecutionPolicy
Restricted
> Set-ExecutionPolicy AllSigned
> Get-ExecutionPolicy
AllSigned

# Install Chocolatey (https://chocolatey.org/install)
> Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))

# If you don't see any errors, you are ready to use Chocolatey! Type choco or choco -?
  • Make 1 single node cluster
kind create cluster --name kind-single-node
cat ~/.kube/config
kubectl config view
  • Check cluster
kubectl cluster-info --context kind-kind-single-node
  • Check nodes
kubectl get nodes
  • Check pods
kubectl get pods --all-namespaces
  • Check ALL
kubectl get all --all-namespaces
  • Deploy WordPress App Using Helm
# Add Helm Repo
helm repo add bitnami https://charts.bitnami.com/bitnami

# Update Helm Repo
helm repo update

# Deploy WordPress
helm install my-wordpress bitnami/wordpress

# List your Helm Chart
helm list
  • Check WordPress
kubectl get all
  • Port Forwarding
kubectl port-forward svc/my-wordpress 8080:80

Phase #2 : Understanding Persistent Volume & Persistent Volume Claim

  • PVC (Persistent Volume Claim)
kubectl apply -f ./pvc.yaml

# Check PVC
kubectl get pv,pvc
kubectl get pods
  • Deploy busybox with PVC
kubectl apply -f ./busybox.yaml

Phase #3 : Deploy Multi-Node Cluster

  • Delete the single node cluster
kind delete cluster --name kind-single-node
  • Deploy Multi-Node Cluster
kind create cluster --name kind-multi-node-test --config ./kind-multi-node-config.yaml
  • Install k9s : K8s CLI To Manage Your Clusters In Style!
# Mac OS
brew install k9s

# Windows
choco install k9s
# Directly (Not recommended)
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0-beta8/aio/deploy/recommended.yaml

# Save to file and apply (Recommended)
wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.7.0/aio/deploy/recommended.yaml -O dashboard.yaml
kubectl apply -f dashboard.yaml

# Docs: https://github.com/kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md
kubectl apply -f dashboard-admin-user.yaml
kubectl apply -f cluster-role-binding.yaml
kubectl -n kubernetes-dashboard create token admin-user
{token} # Copy the token
kubectl proxy
Go to http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/
  • Deploy Nginx
kubectl apply -f https://k8s.io/examples/application/deployment.yaml

# Expose Nginx
kubectl expose deployment nginx-deployment --type NodePort

kubectl port-forward service/nginx-deployment 8000:80
  • Deploy GCP microservices demo

https://github.com/GoogleCloudPlatform/microservices-demo.git

GCP Microservices Demo

git clone https://github.com/GoogleCloudPlatform/microservices-demo.git
cd microservices-demo/
kubectl apply -f ./release/kubernetes-manifests.yaml
kubectl port-forward service/frontend-external 8080:80
  • Clean Up
kubectl delete deployment nginx-deployment
...
kind delete cluster --name kind-multi-node-test