Proven Apache Tomcat to AKS Migration: Fixed Scope, Senior Engineers
Moving Apache Tomcat to Azure Kubernetes Service is a well-documented project. We assign senior engineers to design your cutover, handle sticky sessions, and keep legacy hosts under your current vendor support.
The lowest-cost way off Apache Tomcat: our migration tooling automates the repetitive work —you pay senior engineers for judgment, not keystrokes.
How we support Apache Tomcat → Azure Kubernetes Service after migration
- ✓Fixed-scope project with senior engineers – no scope creep.
- ✓Keep Apache Tomcat under vendor support while you migrate.
- ✓Architectural patterns for state, SMB, and custom sockets.
- ✓Zero-downtime cutover with rollback plan built in.
- ✓Post-migration Azure Platform & AKS Managed Services available.
Hardcoded Tomcat session memory
Your Java apps store session data directly inside Tomcat’s RAM. Containerizing without redesign risks losing state during rolling updates. We provide patterns to externalize sessions (Redis, Azure Cache) so AKS handles restarts transparently.
Legacy file share dependencies
If your app mounts SMB file shares, translating that to AKS can be messy. Our engineers map each mount to Azure Files or NetApp volumes with proper access controls – no broken file paths in production.
Custom port socket bindings
Tomcat servers often bind non-standard ports (e.g., 8443, 9090). AKS expects standard HTTP/HTTPS traffic. We refactor your ingress configuration and Service definitions so every port maps correctly inside the cluster.
Apache Tomcat → Azure Kubernetes Service migration — your questions answered
How do you migrate Apache Tomcat to Azure Kubernetes Service without downtime?+
We use a staged cutover: run a mirrored AKS environment alongside your legacy Tomcat cluster, replicate traffic incrementally, and roll back instantly if issues arise. Your vendor support stays active until you’re ready to flip the switch.
What if our vendor renewal lapses before we finish?+
If your contract expires, our third-party support covers most operational issues on the legacy Tomcat servers (excludes vendor patches). You can continue the migration on your own timeline without a coverage gap – but we recommend aligning renewal dates with your cutover plan.
Do you handle Tomcat containerization – deploying WARs to AKS?+
Yes. We containerize each Tomcat instance, externalize configuration, and set up automated CI/CD pipelines to deploy WARs to Azure Kubernetes Service. We also configure health probes and auto-scaling so the move to managed Kubernetes feels like a normal release.
How long does a typical Tomcat to AKS migration take?+
Most projects run 3-6 months with 3-4 senior engineers. The exact timeline depends on the number of custom stateful patterns (sticky sessions, direct file mounts) your apps use. We give you a fixed-term engagement so you can budget confidently.
Ready to Move from Tomcat to AKS?
Our senior engineers handle the complexity – state, storage, networking – while you keep vendor support on legacy hosts. Fixed scope, predictable budget, and a clear path to managed Azure Kubernetes Service. Book a free AKS Architecture Consultation today.