NATS NLog Target

With .NET Core, NATS (server + streaming server), NLog, Docker

This solution creates a NATS target for NLog to stream and distribute log messages through NATS Streaming Server. Why NATS? NATS, is a lightweight, high performance messaging system and offers an at-most-once quality of service. Simply put, NATS is about publishing and listening for messages and easy to use for developers and operators. Additionally, it is:

• Highly-Performant
• Always on and available
• Extremely lightweight
• At Most Once and At Least Once Delivery
• Support for Observable and Scalable Services and Event/Data Streams
• Client support for over 30 different programming languages
• Cloud Native, a CNCF project with Kubernetes and Prometheus integrations

See the troughput comparison alongisde other messaging systems below

(Image sorce from: https://nats.io/about/)

Using:

1. Run using latest Docker Images:

• Latest Docker Images for NATS Server and NATS Streaming Server
• Docker Swarm (NATS in "cluster" mode)
• NatsNlogPublisherExample
• NatsNlogConsumerExample

2. Run non-containerized:

• NATS Streaming Server (binaries for v0.17.0-windows-386, includes license and README.md, ToDo: untilize package manager)
• Clustered mode or Fault Tolerant mode
• NatsStreamingServerInstaller (setup NATS Streaming Server cluster)
• NatsNlogPublisherExample
• NatsNlogConsumerExample

Includes console application to provide a means for installing, configuring, and uninstalling NATS Streaming Server

One of three configurations:

1. NATS Streaming Server Cluster (non-containerized) * 3 instances (node-A, node-B, node-C) * Runing on different local ports (ToDo: configurations for running on different machines)
   • Client ports: 4221, 4222, 4223
   • Cluster listening ports: 6221, 6222, 6223 * HTTP server monitor (port: 8222)
2. NATS Streaming Server Fault Tolerant (non-containerized) * 2 instances (node-A, node-B) * Runing on different local ports (ToDo: configurations for running on different machines)
   • Client ports: 4221, 4222
   • HA listening ports: 6221, 6222
   • Shared file data store * HTTP server monitor (port: 8222)
3. NATS Server Cluster with NATS Stream Server Cluster (Docker Swarm) * 6 Containers (node-cluster-A, node-cluster-B, node-cluster-C, node-streaming-A, node-streaming-B, node-streaming-C, )

Read about NATS here: https://nats.io/about/