logspout

README

LogSpout

LogSpout is a easy-to-use tool to generate machine logs in specified format. It needs only a sample log and the configuration file in json format. With the value replacement rules defined in the configuration file, logspout can produce log events in various speed (EPS: Events Per Second).

The features of logspout include:

1. Configurable think time in milliseconds, or keeps producing log events with hightide mode set to true.
2. The logs can be sent to stdout or a regular file, with rotation support, or syslog.
3. Multi-line log support.
4. Straight-forward replacement rules defined with regular patterns and json KV pairs.
5. Various data format support: IPv4/IPv6 addresses, Email addresses, Names, Countries, User Agents, Timestamp, Fixed-lists, etc.
6. Transaction mode (A transaction may contain two or more events, each has its own think time).
7. Multi-threaded log events support.
8. Easy hands-on experience with docker support

And many others.

TODO List

There are a couple of new features on the roadmap now.

How To Use

A simple way to use it is through Docker, in just a few steps:

1. Clone the repository to your local server/laptop:

git clone git@github.com:jiwen624/logspout.git

1. Build the docker image and run the servicei (You need to have docker and docker-compose installed):

docker-compose up

Note that you can also use docker-compose up -d to make it run in background, and use docker-compose logs -f to check out the debug logs (the debug logs of logspout itself, not the simulated machine logs)

Stop it with Ctrl-C if you run it foreground, or docker-compose down for background services.

You may change the configuration file logspout-docker.json or use your own one by modifying the docker-compose.yml file.

Enjoy it.

Tutorial

The tutorial is still working in progress. Leave me a message if there is someone really using it.

Issues

Please open an issue and post the logspout.json and log sample you are using if you find a bug.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change. Please make sure to update tests as appropriate.

Documentation

Overview

Package logspout implements a tiny tool to generate machine logs in accordance with the format of a sample log and the replacement policies defined in the config file. It can be used to generate logs in very high speed as well to do stress tests.