Deploy a Reliable Backup Solution for On-Prem Kubernetes with Velero and S3


In the dynamic world of container orchestration, Kubernetes reigns supreme. However, the importance of data backup and disaster recovery is often overlooked—especially in on-premises Kubernetes environments. In this guide, we’ll deploy a reliable backup solution using Velero with Amazon S3 as the storage backend. This ensures that even your on-prem Kubernetes clusters enjoy cloud-grade resilience and data recovery.

Why Use Velero for Kubernetes Backup?

Velero is an open-source tool that offers:

  • Backup and restore of Kubernetes resources and persistent volumes

  • Disaster recovery across clusters and environments

  • Migration capabilities between clusters

It supports multiple storage backends, including Amazon S3, making it ideal for hybrid or on-prem environments where you want the reliability and scalability of the cloud.

 Prerequisites

To follow this guide, ensure the following:

  • A running on-prem Kubernetes cluster (K8s v1.20+ recommended)

  • kubectl is configured to access the cluster

  • An AWS S3 bucket

  • An IAM user with appropriate S3 access credentials

  • A machine (local or VM) from which to install and configure Velero

Step-by-Step Deployment Guide

1. Create an S3 Bucket for Backups

Log in to your AWS console and create an S3 bucket (e.g., my-k8s-backups). Enable versioning and configure encryption (SSE-S3 or SSE-KMS).


aws s3api create-bucket --bucket my-k8s-backups --region us-east-1

aws s3api put-bucket-versioning --bucket my-k8s-backups --versioning-configuration Status=Enabled


2. Create an IAM User and Generate Access Keys

Create an IAM user with Programmatic Access and attach the following policy:


{

  "Version": "2012-10-17",

  "Statement": [

    {

      "Effect": "Allow",

      "Action": [

        "s3:PutObject",

        "s3:GetObject",

        "s3:DeleteObject",

        "s3:ListBucket"

      ],

      "Resource": [

        "arn:aws:s3:::my-k8s-backups",

        "arn:aws:s3:::my-k8s-backups/*"

      ]

    }

  ]

}


Save the Access Key ID and Secret Access Key securely.

3. Install Velero CLI

Download and install Velero on your local machine:


curl -L https://github.com/vmware-tanzu/velero/releases/download/v1.13.0/velero-v1.13.0-linux-amd64.tar.gz | tar -xz

sudo mv velero-v1.13.0-linux-amd64/velero /usr/local/bin/


4. Install Velero in the Cluster

Use Velero to install the backup system into your Kubernetes cluster with your S3 bucket:


velero install \

    --provider aws \

    --plugins velero/velero-plugin-for-aws:v1.7.0 \

    --bucket my-k8s-backups \

    --backup-location-config region=us-east-1,s3ForcePathStyle=true,s3Url=https://s3.amazonaws.com \

    --secret-file ./credentials-velero


The credentials-velero file should contain:


[default]

aws_access_key_id = YOUR_ACCESS_KEY

aws_secret_access_key = YOUR_SECRET_KEY


5. Verify Velero Installation

Check that all components are running:


kubectl get pods -n velero

velero backup-location get


6. Create Your First Backup


velero backup create cluster-backup-01 --include-namespaces default

velero backup get


You can also schedule recurring backups:


velero schedule create daily-backup --schedule="0 1 * * *"


7. Restore a Backup

In case of disaster or migration:


velero restore create --from-backup cluster-backup-01


 Testing the Backup and Restore Process

Always validate:

  1. Backup data consistency

  2. Persistent volume snapshot functionality

  3. Successful restoration into a clean or separate namespace

Simulate a deletion and restore cycle to verify disaster readiness.

Security and Best Practices

  • Enable S3 encryption (SSE-KMS) for sensitive data.

  • Use dedicated IAM roles with least privilege.

  • Monitor backups with Velero logs and alerts.

  • Enable log retention policies and object lifecycle management in S3.

  • Consider Velero Restic integration for volume backups without CSI.

Conclusion

Deploying Velero with S3 brings enterprise-grade backup and disaster recovery capabilities to your on-prem Kubernetes setup. With minimal setup and powerful features, it ensures your critical workloads remain protected and portable.

Whether operating in a hybrid cloud environment or aiming for regulatory compliance, this solution is robust, flexible, and cost-effective.

Comments

Post a Comment

Popular posts from this blog

HTTP Basic vs API Key Auth: Best Practices for Secure API Development

Image
Picture this: You’ve spent weeks building your API, and now your security approach boils down to a coin flip between HTTP Basic and API Keys. Choose wrong, and your data’s basically wearing a “hack me” sign. Every developer faces this exact decision, yet most guides leave you with more questions than answers. When implementing authentication for your API, the choice between HTTP Basic Authentication and API Key Authentication can significantly impact your security posture and user experience. So what makes one better than the other? When should you use HTTP Basic over API Keys? Is there ever a scenario where the “simpler” option is actually more secure? The answers might surprise you – and they definitely aren’t what most Stack Overflow threads would have you believe. Understanding API Authentication Fundamentals Why API Security Matters in Modern Development API security isn’t just some technical checkbox—it’s the fortress protecting your digital kingdom. With businesses exposing crit...
Read more

ECS Deployment Best Practices: Blue/Green with CodePipeline and CodeDeploy

Image
DevOps engineers and AWS cloud architects looking to improve their container deployment processes will benefit from implementing blue/green deployments with Amazon ECS. This guide walks through setting up reliable, zero-downtime deployments using AWS CodePipeline and CodeDeploy for your containerized applications. We’ll cover how to configure your ECS environment properly, create automated deployment pipelines, and implement blue/green deployment strategies that minimize risk during updates. Understanding ECS Deployment Strategies What is Amazon ECS and why it matters Amazon Elastic Container Service (ECS) isn’t just another tool in AWS’s massive catalog—it’s the backbone of modern containerized applications. At its core, ECS is a fully managed container orchestration service that handles all the complex tasks of running, stopping, and managing Docker containers. Think of ECS as the conductor of an orchestra where each container is an instrument. Without proper coordination, you’d just...
Read more

AWS Console Not Loading? Here’s How to Fix It Fast

Image
When the AWS Management Console refuses to load, it can be incredibly frustrating, especially when trying to deploy, debug, or manage production infrastructure. Fortunately, quick and effective fixes get you back on track. This guide outlines common causes and step-by-step solutions to resolve the issue quickly. 1. Check AWS Service Status Start by verifying if AWS itself is experiencing issues: Visit the AWS Health Dashboard to check for regional outages. Look for service-specific issues affecting IAM , EC2 , S3 , or the Console itself . Tip: Subscribe to AWS status updates on Twitter for real-time alerts. 2. Clear Browser Cache and Cookies Corrupted cache or cookies often prevent pages from rendering correctly. Steps: Open browser settings. Clear cache , cookies , and site data for aws.amazon.com . Reload the page. Try logging in using Incognito/Private Mode to rule out browser extensions interfering. 3. Try a Different Browser or Device Sometimes, browser-specific quirks b...
Read more

YouTube Channel