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alextanhongpinalextanhongpin
refactor: bump version for fabio, rewrite readme
Apr 13, 2018
f2c57c4 · Apr 13, 2018

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fabio

README.md

Fabio

admin

Load balancing can be done with fabio.

Start

$ docker-compose up -d
# or
$ make up

UI

Admin UI is available at localhost:9998.

Registering services with docker-compose

In this example, we set the urlprefix-svc1/, which means that this service is accessible through $ curl -H "Host: svc" localhost:9999.

  svc1:
    image: alextanhongpin/linkerd-web
    ports:
      - 127.0.0.1::3000
    environment:
      - SERVICE_TAGS=urlprefix-svc1/
      - SERVICE_CHECK_HTTP=/ # The endpoint for the health checkpoint

Test

We registered two services, one with the hostname svc1 and another with the hostname web:

Test svc1:

$ curl -H "Host: svc1" localhost:9999

Output:

{"hostname":"434640b2970d"}

Test web:

$ curl -H "Host: web" localhost:9999

Output:

<html>
<head>
	<title>Hello world!</title>
	<link href='http://fonts.googleapis.com/css?family=Open+Sans:400,700' rel='stylesheet' type='text/css'>
	<style>
	body {
		background-color: white;
		text-align: center;
		padding: 50px;
		font-family: "Open Sans","Helvetica Neue",Helvetica,Arial,sans-serif;
	}

	#logo {
		margin-bottom: 40px;
	}
	</style>
</head>
<body>
	<img id="logo" src="logo.png" />
	<h1>Hello world!</h1>
	<h3>My hostname is b5b73bd2c9a9</h3>	</body>
</html>

Scale

To test the load balancing, we need to scale the services:

$ docker-compose up -d --scale svc1=3

Test:

$ curl -H "Host: svc1" localhost:9999

Output:

{"hostname":"434640b2970d"}
{"hostname":"44b05366aa03"}
{"hostname":"b41b063b611f"}
{"hostname":"b41b063b611f"}

scale

Stop

$ docker-compose down
# or
$ make down