docker-gen

Config file generator using docker container meta-data.

This is can be used to generate config files for:

• fluentd, logstash or other centralized logging tools that tail the containers JSON log file.
• logrotate files to rotate container JSON log files
• nginx, haproxy, etc.. reverse proxy configs to route requests to the host to containers

Docker Log Management With Fluentd

Automated Nginx Reverse Proxy for Docker

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To Run:

go get github.com/jwilder/docker-gen

docker-gen Usage: docker-gen [-watch=false] [-notify="restart xyz"] <template> [<dest>]

Options:

• -watch - runs continuously and monitors docker container events. When containers are started or stopped, the template is regenerated.
• -notify - runs a command after the template is generated. Useful for restarting nginx, reloading haproxy, etc..

If no <dest> file is specified, the output is send to stdout. Mainly useful for debugging.

TODO:

• Add a way to filter out containers in templates