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Migrating from MapServer to QGIS Server on Kubernetes

Why We Migrated

• Style Consistency: QGIS projects → direct server rendering
• Complex Queries: Native support for PostGIS ST_ functions
• Unified Environment: Single toolchain for desktop/server

Migration Steps

1. Containerized QGIS Server with custom plugins
2. Helm chart for statefulset deployment
3. NGINX reverse proxy with caching
4. Gradual traffic shift using Istio

Performance Gains

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Building a Scalable QGIS MapServer on Kubernetes

Architecture Overview

Our production stack combines:

• QGIS Server containers orchestrated via Kubernetes
• CNPG Operator for PostgreSQL/PostGIS clusters
• Horizontal Pod Autoscaling based on WMS request load

Key Components

graph TD
    A[Client Requests] --> B[K8s Ingress]
    B --> C[QGIS Server Pods]
    C --> D[(PostGIS Cluster)]
    D --> E[Cloud Storage]

Performance Benchmarks

See our Technology Stack for more infrastructure details

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