jackal
    
            
                
                    Instant messaging server for the Extensible Messaging 
                
            
             
            
             
            
        
            jackal is a free, open-source, high-performance XMPP server that aims to be known for its stability, simple configuration and low resource consumption. Customizable, enforced SSL/TLS. Stream compression (zlib), database connectivity for storing offline messages and user settings (PostgreSQL 9.5+, BoltDB). Caching (Redis 6.2+), clustering capabilities (etcd 3.4+) Expose Prometheus metrics, cross-platform (OS X, Linux). To make it easy to install jackal via Helm in Kubernetes a chart has been...