A small application for controlling unicorn
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README.md

Unicorn Hunter

Compiling

Just run rake build in the unicorn_hunter directory.

Usage

unicorn_hunter <application> {start,restart,stop,deploy,worker,status}

Start

Starts the application and starts monitoring the app. This also works when the app is running.

If there is another unicorn_hunter instance already monitoring the app it will be replaced with the new one.

Restart

Tells the currently running unicorn to restart all workers. If you use preload_app you need to use "deploy" for restarting the app.

Stop

Stops the application and the monitoring unicorn_hunter.

Deploy

Performs a no-downtime restart by replacing the master process with a new one.

Worker

Add or remove workers.

Status

Shows the status of the application.

Configuration

To get started copy unicorn.conf.example to /etc/unicorn/unicorn_APPNAME.conf.

You also need to put unicorn.rb.example into your applications config directory.

All configuration options from the .conf file will be passed along to the unicorn master process as environment variables.

Configuration Options used by Unicorn Hunter

APP_ENV (defaults to "production") - environment of the application

APP_ROOT (required) - path to your application's root directory

APP_RUBY (defaults to "ruby") - override default ruby version

APP_TYPE (defaults to "rails") - can be "rails" or "rack"

BUNDLER (defaults to "false") - set to "true" if you're using gem bundler (and need to run bin/unicorn)

UNICORN_LISTEN (defaults to 3000) - port or socket to listen on (example: "/var/run/unicorn/unicorn_test.sock" or "80")

UNICORN_PID_DIR (defaults to /var/run/unicorn) - path to store unicorn..pid and unicorn..hunter.pid

UNICORN_WORKERS (defaults to 3) - number of unicorn workers to start