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morkot/aws-example-user-data-script.sh

Created February 28, 2017 02:49
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Example of simple script to demonstrate User Data and Meta Data usage in AWS EC2
Raw
aws-example-user-data-script.sh
#! /bin/bash
META_DATA_URL="http://169.254.169.254/latest/meta-data/"
ATTRIBUTES="public-hostname instance-id"
INDEX=/var/www/html/index.html
yum install httpd -y
chkconfig httpd on
echo '<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="author" content="Martin Bean" />
<title>DevOps ED AWS</title>
<link rel="stylesheet" href="css/bootstrap.min.css" />
<style>
html, body {
height: 100%;
}
footer {
color: #666;
background: #222;
padding: 17px 0 18px 0;
border-top: 1px solid #000;
}
footer a {
color: #999;
}
footer a:hover {
color: #efefef;
}
.wrapper {
min-height: 100%;
height: auto !important;
height: 100%;
margin: 0 auto -63px;
}
.push {
height: 63px;
}
/* not required for sticky footer; just pushes hero down a bit */
.wrapper > .container {
padding-top: 60px;
}
</style>
</head>
<body>
<div class="wrapper">
<div class="container">
<header class="hero-unit">
<h1>DevOps ED AWS EC2 Instance:</h1>
<p>--instance-id--</p>
<p>--public-hostname--</p>
</header>
</div>
<div class="push"><!--//--></div>
</div>
<footer>
<div class="container">
<p>Demo page for webinar</p>
</div>
</footer>
</body>
</html>' >> $INDEX
for id in $ATTRIBUTES;do
value=$(curl "$META_DATA_URL/$id")
sed -i "s@--$id--@$value@" $INDEX
done
service httpd start
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