Cloud & DevOps Fixed scope

Zero-Downtime Deployment Migration

Move from single-server releases to blue-green deployments with health checks and automatic rollback built in.

Timeline: 14 working days
Price: ₹29,999 incl. GST
Reference: NP-CLD-105
Ownership: Delivered into accounts you own

Overview

What this engagement is

If your release process depends on a late-night weekend window, this engagement retires it. We move your application to a model in which each new version starts up, passes its health checks and only then receives traffic, while the previous version stays warm and available. Database changes follow the expand-and-contract pattern, so old and new code never conflict over the schema. Before you rely on it in production, we rehearse the full process in staging, including a deliberately failed release.

Deliverables

What you receive

7 items

Blue-green or rolling deployments configured on your container service, cluster or virtual machines
Health check endpoints built and tuned to real startup behaviour
Load balancer target groups and connection draining configured
Expand-and-contract migration pattern documented and applied to one release
Automatic rollback on failed health checks within a defined window
Deployment runbook including the manual override procedure
Rehearsed failure drill observed by your engineers

Outcomes

What changes once it ships

Releases take place during working hours with the team on hand

A faulty release is reversed in under two minutes, without a database restore

Deployments become routine rather than calendar-worthy events

Process

How the 4 stages run

Assess

Current deployment steps, sources of downtime and database coupling are mapped
Prepare

Health checks, the migration pattern and infrastructure changes are built
Rehearse

A staging release, followed by a forced failure to prove rollback
Cut over

The first production release is run jointly with your team

A strong fit for

Products serving users across multiple time zones
Teams for whom late-night releases have become a recurring burden
Organisations with uptime commitments written into customer contracts

What we need from you

Access to the deployment environment and the application repository
Time from a developer familiar with the database schema
A staging environment that reasonably reflects production

You share these through the brief that opens in your client dashboard once payment is confirmed. The timeline starts when they arrive.

Answers

Questions about this engagement

Yes. Expand-and-contract is precisely how single-database systems avoid downtime during schema changes.

We tune health checks and grace periods to suit, and flag the slow start as something worth addressing separately.

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

This is a digital service — nothing is shipped. Work is delivered to the timeline above, into systems you control, and our refund terms explain what happens if a date is missed.

Often paired with

Engagements that work well alongside.

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