an "installer" (really just config/setup) for prebuilt images (at least for now)

2025-12-29 00:25:08 +01:00 · 2013-10-30 19:39:20 -05:00
parent 3c1666076e
commit d457aaae99
1 changed files with 121 additions and 0 deletions
--- a/contrib/dokku-installer.rb
+++ b/contrib/dokku-installer.rb
@@ -0,0 +1,121 @@
+#!/usr/bin/env ruby
+require "sinatra"
+require "open3"
+
+if ARGV[0] == "onboot"
+	File.open("/etc/init/dokku-installer.conf", "w") do |f|
+		f.puts "start on runlevel [2345]"
+		f.puts "exec #{File.absolute_path(__FILE__)} selfdestruct"
+	end
+	File.open("/etc/nginx/conf.d/dokku-installer.conf", "w") do |f|
+		f.puts "upstream dokku-installer { server 127.0.0.1:2000; }"
+		f.puts "server {"
+  		f.puts "	listen      80;"
+  		f.puts "	location    / {"
+    	f.puts "		proxy_pass  http://dokku-installer;"
+  		f.puts "	}"
+		f.puts "}"
+	end
+	puts "Installed Upstart service and default Nginx virtualhost for installer to run on boot."
+	exit
+end
+
+version 	= "v0.2.0"
+dokku_root	= ENV["DOKKU_ROOT"] || "/home/dokku"
+admin_key 	= `cat /root/.ssh/authorized_keys`.split("\n").first
+hostname 	= `bash -c '[[ $(dig +short $HOSTNAME) ]] && echo $HOSTNAME || curl icanhazip.com'`.strip
+template 	= DATA.read
+
+set :port, 2000
+set :environment, :production
+disable :protection
+
+get "/" do
+	ERB.new(template).result binding
+end
+
+post "/setup" do
+	if params[:vhost] == "true"
+		File.open("#{dokku_root}/VHOST", "w") {|f| f.write params[:hostname] }
+	else
+		`rm #{dokku_root}/VHOST`
+	end
+	File.open("#{dokku_root}/HOSTNAME", "w") {|f| f.write params[:hostname] }
+	Open3.capture2("sshcommand acl-add dokku admin", :stdin_data => params[:key])
+	Thread.new {
+		`rm /etc/nginx/conf.d/dokku-installer.conf && /etc/init.d/nginx stop && /etc/init.d/nginx start`
+		`rm /etc/init/dokku-installer.conf && stop dokku-installer`
+	}.run if ARGV[0] == "selfdestruct"
+end
+
+__END__
+<html>
+<head>
+	<title>Dokku Setup</title>
+	<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" />
+	<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
+</head>
+<body>
+	<div class="container" style="width: 640px;">
+	<form id="form" role="form">
+		<h1>Dokku Setup <small><%= version %></small></h1>
+		<div class="form-group">
+			<h3><small style="text-transform: uppercase;">Admin Access</small></h3>
+			<label for="key">Public Key</label><br />
+			<textarea class="form-control" name="key" rows="7" id="key"><%= admin_key %></textarea>
+		</div>
+		<div class="form-group">
+			<h3><small style="text-transform: uppercase;">Hostname Configuration</small></h3>
+			<div class="form-group">
+				<label for="hostname">Hostname</label>
+				<input class="form-control" type="text" id="hostname" name="hostname" value="<%= hostname %>" />
+			</div>
+			<div class="checkbox">
+				<label><input id="vhost" name="vhost" type="checkbox" value="true"> Use <abbr title="Nginx will be run on port 80 and backend to your apps based on hostname">virtualhost naming</abbr> for apps</label>
+			</div>
+			<p>Your app URLs will look like:</p>
+			<pre id="example">http://hostname:port</pre>
+		</div>
+		<button type="button" onclick="setup()" class="btn btn-primary">Finish Setup</button> <span style="padding-left: 20px;" id="result"></span>
+	</form>
+	</div>
+	<div id="error-output"></div>
+	<script>
+		function setup() {
+			if ($.trim($("#key").val()) == "") {
+				alert("Your admin public key cannot be blank.")
+				return
+			}
+			if ($.trim($("#hostname").val()) == "") {
+				alert("Your hostname cannot be blank.")
+				return
+			}
+			data = $("#form").serialize()
+			$("input,textarea,button").prop("disabled", true);
+			$.post('/setup', data)
+				.done(function() {
+					$("#result").html("Success!")
+					window.location.href = "https://github.com/progrium/dokku#deploy-an-app";
+				})
+				.fail(function(data) {
+					$("#result").html("Something went wrong...")
+					$("#error-output").html(data.responseText)
+				});
+		}
+		function update() {
+			if ($("#vhost").is(":checked") && !isNaN($("#hostname").val()[0])) {
+				alert("In order to use virtualhost naming, the hostname must not be an IP but a valid domain name.")
+				$("#vhost").prop('checked', false);
+			}
+			if ($("#vhost").is(':checked')) {
+				$("#example").html("http://&lt;app-name&gt;."+$("#hostname").val())
+			} else {
+				$("#example").html("http://"+$("#hostname").val()+":&lt;app-port&gt;")
+			}
+		}
+		$("#vhost").change(update);
+		$("#hostname").change(update);
+		update();
+	</script>
+</body>
+</html>