shutdown

Setup Shutdown

Module to provide ordered shutdown hooks as proposed in Killing me softly: Graceful shutdowns in Clojure

Install

Add this project to your deps.edn. Currently, this is possible from the local repository structure using

{:deps {...
        org.gorillalabs.bauhaus/setup-shutdown             {:local/root "../../modules/setup/shutdown"}
        ...
        }}

or using git coordinates like this, but with the latest :git/sha

{:deps {...
        org.gorillalabs.bauhaus/setup-shutdown {:git/url   "git@github.com:gorillalabs/bauhaus.git"
                                                :git/sha   "AE...<commit sha>"
                                                :deps/root "modules/setup/shutdown"}
        ...
        }}

Usage

Require the gorillalabs.bauhaus.setup.shutdown namespace (here :as setup.shutdown)

You can add shutdown hooks to an ordered collection of hooks

(setup.shutdown/add-hook! :clojure.core/shutdown-agents setup.shutdown/agents)

The gorillalabs.bauhaus.setup.shutdown/agents function is a helper function to shutdown the agents using shutdown-agents with a log message.

You can reorder the hooks later on

(setup.shutdown/hook-order! [:clojure.core/shutdown-agents])