Create an EC2 instance
- Sign up for AWS
- In Services -> EC2, click “Launch Instance”
- Choose the 64 bit Debian Jessie image
- Hit review and launch
Save your SSH key pair!
Install Java
SSH into your instance and open /etc/apt/sources.list in your favorite editor. Add jessie-backports to the file:
deb http://ftp.debian.org/debian jessie-backports main
Now run sudo apt-get update, and install the following!
$ sudo apt-get install openjdk-8-jre openjdk-8-jre-headless libjna-java
Use Docker
You need to install docker and docker compose. Then spin up the containers:
$ git clone https://github.com/aphyr/jepsen && cd jepsen/docker $ ./up.sh $ docker exec -it jepsen-control bash
Write your test
Create a new Leiningen project:
$ lein new foo && cd foo
And edit src/jepsen/foo.clj — your first test! This does nothing!
(ns jepsen.zookeeper (:require [jepsen.tests :as tests])) (defn zk-test [version] tests/noop-test)
Edit test/jepsen/foo_test.clj to look like this:
(ns jepsen.foo-test
(:require [clojure.test :refer :all]
[jepsen.core :as jepsen]
[jepsen.foo :as foo]))
(deftest a-test (is (:valid? (:results (jepsen/run! (foo/foo "3.4.5+dfsg-2"))))))
That calls the test you just wrote (and passes it a version number).
Finally! Run your test:
$ lein test
And hopefully you get something that ends with:
Everything looks good! ヽ(‘ー`)ノ
