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require 'sinatra'
EC2_HOME = '~/.ec2'
use Rack::Auth::Basic do |username, password|
[username, password] == ['some_user', 'some_pass']
end
get "/" do
@links = %w{describe_ec2s restart_all_ec2s shutdown_all_ec2s}.map { |cmd|
cmd_link(cmd)
}.join
erb :index
end
get "/describe_ec2s" do
results = `cd #{EC2_HOME}; ec2-describe-instances`
instances = results.scan(/INSTANCE\ti-\w*/).each{|i| i.sub!("INSTANCE\t",'')}
@links = instances.map { |i|
instance_link(i)
}.join
erb :index
end
get "/restart_all_ec2s" do
@results = `cd #{EC2_HOME}; ec2-describe-instances`
instances = @results.scan(/INSTANCE\ti-\w*/).each{|i| i.sub!("INSTANCE\t",'')}
cmd="cd #{EC2_HOME}; ec2-reboot-instances #{instances.join(' ')}"
@results = `cmd`
erb :index
end
get "/shutdown_all_ec2s" do
@results = `cd #{EC2_HOME}; ec2-describe-instances`
instances = @results.scan(/INSTANCE\ti-\w*/).each{|i| i.sub!("INSTANCE\t",'')}
cmd="cd #{EC2_HOME}; ec2-terminate-instances #{instances.join(' ')}"
@results = `cmd`
erb :index
end
get "/instance/:id" do
id = params[:id] if params[:id]
verify_id(id)
@results = `cd #{EC2_HOME}; ec2-describe-instances #{id}`
@links = "<li><a href='/shutdown/#{id}' target='_self'>shutdown #{id}</a></li>"
@links += " <li><a href='/reboot/#{id}' target='_self'>reboot #{id}</a></li>"
erb :index
end
get "/reboot/:id" do
id = params[:id] if params[:id]
verify_id(id)
@results = `cd #{EC2_HOME}; ec2-reboot-instances #{id}`
erb :index
end
get "/shutdown/:id" do
id = params[:id] if params[:id]
verify_id(id)
@results = `cd #{EC2_HOME}; ec2-terminate-instances #{id}`
erb :index
end
helpers do
def cmd_link(cmd)
"<li><a href='#{cmd}' target='_self'>#{cmd}</a></li>"
end
def instance_link(instance)
"<li><a href='/instance/#{instance}' target='_self'>#{instance}</a></li>"
end
def verify_id(id)
raise Sinatra::ServerError, 'bad-id, What you doin?' unless id.match(/i-\w*/)
end
end
use_in_file_templates!
__END__
@@ index
<html>
<head>
<meta name="viewport" content="width=320; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;"/>
<style type="text/css" media="screen">@import "/stylesheets/iui.css";</style>
<script type="application/x-javascript" src="/javascripts/iui.js"></script>
</head>
<body>
<div class="toolbar">
<h1 id="pageTitle"></h1>
</div>
<% if(@links) %>
<ul id="home" title="ec2 cmds" selected="true">
<li><a href='/' target='_self'>home</a></li>
<%= @links %>
<% unless(@results) %>
</ul>
<% end %>
<% end %>
<% if(@results) %>
<% if(@links) %>
<li><strong>results</strong></li>
<% else %>
<ul id="home" title="results" selected="true">
<li><a href='/' target='_self'>home</a></li>
<% end %>
<%= @results.gsub("\n","<br/>") %>
</ul>
<% end %>
</body>
</html>
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