RentPath
Cloud Native Development / Legacy Modernization / Cloud Migration
Executive brief
Rapid Kubernetes Migration from Docker Swarm
RentPath needed a fast migration from Docker Swarm to Kubernetes across 30 applications. Epsilon standardized patterns, executed wave-based cutovers, and delivered predictable deployment and rollback processes—without disrupting 24/7 services.
Applications migrated
30
30 days
Downtime incidents
0
entire engagement
Average deployment time
45 min → 12 min
post-migration
Migrated 30 applications from Swarm to Kubernetes in 30 days
Zero customer-facing downtime during migration
Improved deployment and rollback speed with standardized patterns
Engagement shape
Duration
4 wks
Phases
3
Deliverables
4
Applications migrated
30
How it ran
Discovery + templates + wave-based cutovers under a 30-day deadline
RentPath moved 30 apps from Docker Swarm to Kubernetes in 30 days with zero downtime.
Starting position
What RentPath was working against.
A portfolio of 30 Swarm-managed applications needed to move to Kubernetes quickly, safely, and without downtime.
Constraints we worked inside
3 in playEvery one of these ruled an easier option out. They are the reason the approach looks the way it does.
Hard 30-day deadline
No downtime tolerance for revenue-critical services
Varied application patterns and dependencies
What had to be true to finish
3 goalsAgreed up front, so the engagement could be called finished on evidence instead of opinion.
Migrate all applications to Kubernetes
Standardize deploy/rollback practices
Improve scalability and operational consistency
Industry context
Cloud Native Development
Legacy Modernization
Cloud Migration
RentPath provides digital marketing solutions in the consumer rental market with high-availability requirements.
Approach
How the work was sequenced.
Epsilon treated the migration like a factory: discovery, templates, waves, and controlled cutovers with rollbacks.
Delivery track
Segment width reflects the number of workstreams inside each phase — where the engagement actually spent its effort.
Inventory + current-state mapping
3 workstreams
Documented dependencies, ports, storage, and scaling behavior
Classified applications by risk and migration complexity
Defined cutover checks and rollback triggers
Standardized Kubernetes patterns
3 workstreams
Created reusable Helm/deploy templates
Aligned health checks and rollout strategies
Established consistent config and secrets patterns
Wave-based migration execution
3 workstreams
Migrated in waves with validation per app
Implemented rollback plans per application class
Coordinated testing and acceptance per team
What the team kept
Artefacts handed over at the end of the engagement — owned and operable by RentPath without us.
Migration inventory and current-state documentation
Standard deployment templates (Helm/manifests)
Cutover checklists + rollback runbooks
Post-migration operational guidelines
Results
What actually moved.
The migration hit the deadline with no incidents and improved deployment speed thereafter.
Outcome ledger
Every figure we measured on this engagement, including the ones that are ranges rather than headlines.
Applications migrated
From original text
30
30 daysDowntime incidents
From original text
0
entire engagementAverage deployment time
Illustrative
45 min
12 min
Rollback time
Illustrative
30 min
5 min
What changed day to day
The part of the result that never shows up in a dashboard, but is the reason the numbers held.
Maintained 24/7 service continuity
Reduced risk and variability in deployments
Improved scalability and operational consistency
Your turn
Run this play with your team.
RentPath moved 30 apps from Docker Swarm to Kubernetes in 30 days with zero downtime. If that shape looks familiar, the first conversation is a working session, not a pitch.
Kubernetes migration
Container orchestration modernization
Deployment standardization
Cutover planning
Operational hardening
What RentPath got
Applications migrated
30
30 days
Downtime incidents
0
entire engagement
Average deployment time
45 min → 12 min
post-migration