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Zero-Downtime Deployment Migration

Move your application off single-server deploys onto blue-green releases, with health checks and automatic rollback.

Price incl. GST
₹29,999
Timeline
14 working days
Deliverables
7 listed below

Overview

About this service

If your release plan includes the phrase "at 2am on Sunday", this fixes it. We move your application to a deployment model where a new version starts, proves itself against health checks, and takes traffic only when it is ready — while the old version stays warm and reachable. Database migrations get the harder treatment: expand and contract, so schema changes never require the old and new code to disagree. We rehearse the whole thing in staging, including a deliberate failed release, before you use it for real.

Deliverables

What you receive

7 items
  1. 01 Blue-green or rolling deployment configured on a container service, your container cluster or compute instances
  2. 02 Health check endpoints implemented and tuned for real startup behaviour
  3. 03 Load balancer target group and connection draining configuration
  4. 04 Expand-and-contract migration pattern documented and applied to one release
  5. 05 Automatic rollback on failed health checks within a defined window
  6. 06 Deployment runbook including the manual override path
  7. 07 Rehearsed failure drill with your engineers watching

Benefits

Why it is worth doing

  • Releases happen during working hours with people awake to watch

  • A bad release is reversed in under two minutes without a database restore

  • Deployment stops being an event that needs a calendar invite

Process

How the work is carried out

  1. 1

    Assess

    Current deploy steps, downtime causes and database coupling are mapped

  2. 2

    Prepare

    Health checks, migration pattern and infrastructure changes are built

  3. 3

    Rehearse

    Staging release, then a forced failure to prove rollback works

  4. 4

    Cut over

    First production release run jointly with your team

Best suited to

  • Products with users in more than one timezone
  • Teams whose release nights have become a recurring cost
  • Companies with uptime commitments in a customer contract

What we need from you

  • Access to the deployment environment and the application repository
  • Time from a developer who understands the database schema
  • One staging environment that mirrors production reasonably closely

You can share these from your order page after checkout. The timeline starts once they are received.

FAQ

Questions about this service

Yes. The expand-and-contract pattern is exactly how single-database systems avoid downtime during schema changes.

Then we tune health checks and grace periods around that, and flag the startup time as something worth fixing separately.

Yes, where your load balancer and traffic volume make canaries meaningful. We will advise during the assessment.

Have a question before you order?

Tell us about your project and we will confirm whether this service fits, or suggest a better option.

Ask about this service

This is a professional service delivered remotely; nothing is physically shipped. See the Delivery Policy and Refunds & Cancellation for how delivery, delays and refunds are handled.

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