QJazz is a suite of QGIS based services including:
- QGIS server as microservice
- OGC Processes server on top of QGIS processing
This is as set of modules for deploying QGIS based servers and processing services as OGC processes compliant API
It aims to provide support for scalable deployment of QGIS based services on medium or large infrastructure and has been developed to solve some issues when dealing with large numbers of projects.
The services are implemented as wrappers around the QGIS Server api and the Processing QGIS api and because of this, it supports all QGIS Server features and options.
- Qgis server as microservice over gRPC protocol
- Enhanced scalability support
- Hot (re)configuration from remote or local config
- OGC Api Map support with STAC compliance
- OGC Api Processes support
- REST admin api on project's cache
- Managed project's cache synchronized between workers
- S3 storage supports for projects
- Full TLS support for server and client authentification on all components
The QJazz support for QGIS server includes:
- A gRPC service wrapping embedded QGIS server processes pool
- A frontend proxy for routing your requests to distributed gRPC workers.
The gRPC service manage Projects synchronization between all QGIS instances of the pool, automatic plugin installation and full control over loaded projects with a using dedicated service.
The frontend handle disconnection/reconnection of backend services, api delegation, OGC Map api supports.
The frontend HTTP/S server and the gRPC services are written in Rust for efficiency, stability and security.
Qjazz is designed for distributed environment and provide all-in-a-box setup for deploying execution of QGIS processing algorithms behind a compliant OGC Processes api.
It enables leverage your algorithms and models designed with QGIS desktop with a full compliant OGC Processes api without any modifications.
It use the Celery framework for distributing your jobs to multiples set of services and QGIS versions.
It allows for deploying custom QGIS based services by implementing your own QGIS based Celery workers.
- Python 3.12+
- Qgis 3.34+
- Linux/Posix based platform
If you plan to use the processing services then the following extra services are required:
Note that support for Windows or OSX are not planned. If you want to deploy Qjazz on these platforms, consider using VMs or containers.
Look at the latest documentation:
Have a look to the examples on how to use the services using our published Docker images.