How a Fintech recovered from a critical outage in minutes with Velero

How a Fintech recovered from a critical outage in minutes with Velero

Velero: The Key to Kubernetes Resilience

In Kubernetes environments, infrastructure is ephemeral. Pods can disappear, nodes can fail, and in the worst case, human error or a cloud failure can put your entire application at risk. How can you ensure that you can recover your data and configurations without headaches?

The Problem: Kubernetes Does Not Manage Backups on Its Own

Kubernetes is designed to be dynamic and scalable, but it does not include a native backup solution. If you lose a cluster, reinstalling resources does not guarantee that you will recover their exact state.

  • No Native Backup Mechanism: Unlike traditional databases or virtual machines, Kubernetes does not automatically back up application state, persistent data, or cluster configurations.
  • Stateful Applications Are at Risk: Stateless applications can easily be redeployed, but stateful applications relying on Persistent Volumes (PVs) require a structured backup approach.
  • Disaster Recovery Complexity: If a cluster is accidentally deleted or corrupted, reconstructing it from scratch without a backup can lead to extended downtime and data loss.
  • Human and Automation Errors: Accidental namespace deletions, misconfigurations in infrastructure as code (IaC), or faulty CI/CD deployments can lead to irreversible damage.
  • Cross-Cluster Migrations: Moving workloads across clusters or cloud providers without a backup and restore strategy can be complex and error-prone.

Why is Velero relevant?

Velero is an open-source tool designed for backups, restorations, and migrations in Kubernetes. Its integration with multiple cloud storage providers makes it a flexible and powerful option for any environment.

Value for Businesses and Developers

Velero provides strategic advantages for both businesses and developers, making it a crucial tool for managing Kubernetes workloads efficiently.

For Businesses ??

Business Continuity & Disaster Recovery

  • Ensures minimal downtime and fast recovery from failures.
  • Reduces financial and reputational risk by safeguarding critical applications.

Cost Optimization

  • Avoids vendor lock-in by enabling multi-cloud migration (AWS, GCP, Azure, on-prem).
  • Saves storage costs with incremental backups and efficient retention policies.

Regulatory Compliance & Security

  • Helps meet data retention policies and compliance requirements (GDPR, HIPAA, etc.).
  • RBAC and encryption ensure backups are secure and controlled.

Operational Efficiency

  • Automates backup & restore processes, reducing manual intervention.
  • Seamlessly integrates with existing CI/CD and DevOps pipelines.


For Developers ????

Easy Application Backup & Restore

  • Developers can restore workloads quickly, minimizing disruptions during updates or failures.
  • Supports namespaced restores, allowing developers to work independently.

Frictionless CI/CD & Testing

  • Enables snapshot-based environment cloning for testing and debugging.
  • Facilitates migration of workloads between dev, staging, and production environments.

Cloud-Native & Kubernetes-First Approach

  • Uses Kubernetes-native CRDs, making it easy to integrate with existing workflows.
  • Supports both stateful (databases, persistent volumes) and stateless applications.

Simplified Multi-Cluster & Multi-Cloud Management

  • Developers can move workloads between clusters seamlessly, ensuring portability.
  • Helps in avoiding cloud provider lock-in.


Use Case: Disaster Recovery with Velero

A fintech company with a high volume of transactions in Kubernetes suffered a critical outage when a misconfiguration accidentally deleted several namespaces. Thanks to Velero, they could restore the complete state of their applications within minutes, without losing critical customer data or affecting service availability.

Step-by-Step Recovery Process with Velero

1- Problem Detection.

  • The DevOps team noticed that several applications stopped responding.
  • A quick analysis revealed that multiple critical namespaces were mistakenly deleted.

2- Verification of Available Backups

  • The team ran velero backup get to list recent backups.
  • They confirmed that a valid backup existed before the incident.

3- Initiating the Restoration Process

  • They used velero restore create --from-backup <backup-name> to begin the restoration.

4- Monitoring the Recovery

  • Progress was tracked using velero restore get.
  • Logs were checked with velero restore describe <restore-name> to ensure there were no errors.

5- Post-Restoration Validation

  • Pods, services, and configurations were reviewed to ensure everything was restored.
  • Applications were tested to confirm that data remained intact.

6- Root Cause Analysis and Prevention

  • Permissions and configurations were reviewed to prevent similar errors in the future.
  • A validation mechanism was implemented to prevent accidental deletions.

With this process, the fintech company successfully restored their environment within minutes, avoiding service downtime and data loss.


Are you ready to protect your Kubernetes Environment?

If you don't have a backup plan for Kubernetes yet, Velero is an excellent option to start with. Implementing it now could save you many problems in the future.

?? Explore Velero and protect your Kubernetes today: https://velero.io

Souleymane KONé

Freelance SRE | DevOps & Cloud Engineer | Kubernetes | Openshift | Available for Projects

1 周

This is indeed one of the classics to have on a cluster. Recently, after migrating from CNI Calico to Cilium on clusters, we observed one day, that all Cilium pods were in crashLoopBackOff... the culprit was a ‘velero restore’ ( or maybe a Cilium bug). Since fixed after opening an issue. When possible, a backup of ‘etcd’ can also be very useful in the most critical cases (especially if you're using Rancher).

回复

要查看或添加评论,请登录

?? Gerardo Lopez的更多文章