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Save Yourself From a Disaster

Redundancy on a budget

Fabio Cicerchia

Save yourself from a disaster: Redundancy on a budget.

I'm sharing the architectural and practical details of each step I took to make my websites disaster-proof while keeping my cloud spending on a tight leash (so you could do this too).

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About

About

About the Book

What can we learn from the latest major cloud incident (ie. burning OVH datacenter)? Do not put all your eggs in one basket!

The only certain thing is that it's not a matter of IF there'll be a disaster but rather WHEN so better be not caught off guard.

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Resiliency

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Author

About the Author

Fabio Cicerchia

I'm Fabio, a Passionate Engineer and Engineering Manager with nearly 2 decades of expertise. Focused on optimising Architecture & Infrastructure (Containers & VMs), as well as Processes (Pipelines & Deployments).

Bringing value to the company by helping engineering teams in delivering value faster with higher standards.

Contents

Table of Contents

Introduction

Why this Book?

  1. Convention Used
  2. Code Examples

Author

Disclaimer

  1. Cloud as a Saviour
  2. Distributed Systems

Action Plan

Required Concepts

  1. CAP Theorem
  2. Consensus
  3. First Things First

Secure the Database

  1. Backups
  2. Restore

Secure the Storage

  1. Backups
  2. Restore
  3. Quick Solutions

Redundancy of Database

  1. Redundancy
  2. SSL Connection
  3. Replica
  4. Spin up multiple nodes
  5. Security

Redundancy of Storage

  1. Distributed Storage

Redundancy of Web Servers

  1. Duplicate VM
  2. Docker
  3. Enhancements

Redundancy of DNS

  1. DNS Round-Robin
  2. Secondary DNS
  3. Manual Switch

Manual Configurations

  1. Tools
  2. Creating VMs
  3. Provisioning

Billing Impact

  1. Original Cost
  2. Upgrade Cost
  3. Cost Optimization

Disaster Recovery Plan

  1. Plan Ahead
  2. Possible Failures
  3. Outline
  4. DRP Templates
  5. Scenarios

Play with Providers

  1. Complete Solutions

Redundancy of Storage

  1. Distributed Storage

Redundancy of Database

  1. Replica
  2. Balancing requests

Redundancy of Web Servers

  1. Kubernetes
  2. Bonus

Redis

ElasticSearch

MongoDB

Email

Experimenting

Logs

Passwords & 2FAs

Shared Drive

Version Control System

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