amarsingh3d/redis

Setup Minikube Cluser on EC2 machine and run Redis Cluser using helm - using userdata to install Docker, Minikube, kubectl and Helm

• This document describe a steps on how to setup minikube cluster on EC2 and run Redis cluser using Helm chart.

Prerequisites

• Install AWS CLI - (https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html)
• Setup AWS credentails using

aws configure

• if you would like to use different profile use following command to set default profile.

export AWS_DEFAULT_PROFILE=<profiel name>

Download code from the following repo

git clone -b main https://github.com/amarsingh3d/redis.git

Create EC2 machine

• To create EC2 machine run following commands.
• Switch to terraform directory and replace following variables.

cd redis/terraform

• update variable cidr_blocks with your IP so we can do ssh to machine.

variable "cidr_blocks" {
  default = "103.69.14.12/32"

}

• Update public key for SSH

variable "pub_key" {
  description = "Minikube pub key"
  type        = string
  default     = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABgQDPNmt"

}

• Run Terraform init, plan and apply

terraform init \
terraform fmt \
terraform validate

terraform plan

terraform apply

• Take a note of output of public IP

Create Redis Cluster and Redis client POD

• SSH to EC2 machine

ssh -i <path of you private key> ubuntu@<server_IP>

• take a clone of git repository on the server

git clone -b main https://github.com/amarsingh3d/redis.git

• Switch to correct directory

cd redis/helm

• Start minikube cluster

minikube start

• varify minikube status

minikube status

• Create Redis cluster

helm install redis-cluster redis-cluster/ -f redis-cluster/values.yaml

• Create redis client

helm install redis-client redis-client/ -f redis-client/values.yaml

• Get pod details and make sure all pod are up and running

kubectl get pod

• get the redis cluster auth password

export REDIS_PASSWORD=$(kubectl get secret --namespace default redis-cluster -o jsonpath="{.data.redis-password}" | base64 -d)
echo $REDIS_PASSWORD

• connect redis-client pod and create redis key

kubectl get pod

Take a node of redis-client POD name

• connect redis client pod

kubectl exec --tty -i < redis client pod name here > -c redis-client /bin/bash

• Connect redis master

redis-cli -h redis-cluster-master

• authorize usign password, replace password from above 3rd last steps

auth <passwrod >

• Test redis using ping command output should be Pong

ping

• Create new key

set OxKey OxValue

• get newlly added key

get OxKey

If output is expected everything is up and running as expected.