select='resptime>0',把结果存储到nodes.txt中,假设所有的操作都在~/planetlab/hello_world目录下 把节点加入到你的slice中,可以在工作目录下输入python脚本$ python
>>> import xmlrpclib
>>> api_server = /
... xmlrpclib.ServerProxy('https://www.planet-lab.org/PLCAPI/')
>>>
>>> auth = {}
>>> auth['Username'] = "user" <-- 用你自己的email帐号替代 >>> auth['AuthString'] = "pass" <-- 用你自己的帐号密码替代
>>> auth['AuthMethod'] = "password"
>>>
>>> node_list = [line.strip() for line in open("nodes.txt")]
>>>
>>> api_server.AddSliceToNodes(auth, /
... "你的slice名称", node_list) 安装部署作业的软件codeploy,具体可参看安装手册(跟一般安装软件步骤相同,注意:在最后可能运行软件时找不到multiquery命令的错误提示,这就要你给codeploy搞好环境变量) 如果你所安装的机器正好是一台web服务器,那你就可直接跳过这步;否则,你就要配置你这台机器,使它变成一台web服务器(安装apache,如果你不知道是否安装,你可用rpm -qa|grep httpd来查看) 在你的工作目录下建立一个可被写的文件phonehome.txt,并输入命令$ touch phonelog.txt
$ chmod 666 phonelog.txt 在你的可被web访问的目录下,存储一下文件phonehome.php phonelog.php 和phonehome.py文件 <?
### phonelog.php
header('Content-type: application/vnd.google-earth.kml+xml');
header('Content-disposition: attachment;
filename="hello_world.kml"');
echo '<?xml version="1.0" encoding="UTF-8"?>' . "/n";
echo '<kml xmlns="http://earth.google.com/kml/2.0">' ."/n";
echo '<Document>' . "/n";
$phonelog = file("phonelog.txt");
foreach ($phonelog as $entry) {
$fields = explode("/t", trim($entry));
if ($fields[4] == "None" || $fields[5] == "None") continue;
?>
<Placemark>
<Snippet><?= htmlspecialchars($fields[3]) ?></Snippet>
<name><?= htmlspecialchars($fields[1]) ?></name>
<LookAt>
<longitude><?= $fields[5] ?></longitude>
<latitude><?= $fields[4] ?></latitude>
<range>1000000</range>
</LookAt>
<visibility>1</visibility>
<Point>
<extrude>1</extrude>
<altitudeMode>relativeToGround</altitudeMode>
<coordinates>
<?= $fields[5] . "," . $fields[4] ?>,0
</coordinates>
</Point>
</Placemark>
<? }
?>
</Document>
</kml> <?
### phonehome.php
if (isset($_GET['reset'])) {
$phonelog = fopen("phonelog.txt", "w");
fclose($phonelog);
echo "Cleared Phone Log.";
die();
}
if (!isset($_POST['site_id'])) die;
$existinglog = file("phonelog.txt");
foreach ($existinglog as $entry) {
$f = explode("/t", trim($entry));
if ($f[0] == $_POST['site_id']) die;
}
$phonelog = fopen("phonelog.txt", "a");
fwrite($phonelog, $_POST['site_id'] . "/t" . $_POST['name'] .
"/t" . $_POST['login_base'] . "/t" . $_POST['url'] .
"/t" . $_POST['latitude'] . "/t" . $_POST['longitude'] .
"/n");
fclose($phonelog);
?> #!/usr/bin/python
### phonehome.py
### Hello World demonstration script
phonehome_url = "http://www.your.url/~username/hw_demo/phonehome.php"<这个用你的可访问目录的url来代替,hw_demo就是这三个文件存放位置>
import sys, urllib, xmlrpclib, socket
api_server = xmlrpclib.ServerProxy('https://www.planet-lab.org/PLCAPI/')
auth = {}
auth['AuthMethod'] = "anonymous"
auth['Role'] = "user"
hostname = socket.gethostname()
query = api_server.GetNodes(auth,
{'hostname': hostname}, ['site_id'])
site_id = query[0]['site_id']
site_info = api_server.GetSites(auth,
{'site_id': site_id}, ['site_id', 'name', 'url',
'latitude', 'longitude', 'login_base'])
site_info = urllib.urlencode(site_info[0])
urllib.urlopen(phonehome_url, site_info) 最后来运行下./codeploy ~/public_html/helloworld /
> http://www.your.url/~username/helloworld/ hello(注意:这个要跟你的存放目录和具体url有关,不要盲目照写) 注意,在连接节点时,可能每连一个节点,它就要你输入passprase,很麻烦,我教你可以用下法: $eval `ssh-agent` $ ssh-add ~/.ssh/id_rsa 我的问题,我用ssh连接一个节点时,每次到了sending envirnment时就不走了,但我感觉应该连上了.请各位高手告诉我.
参考文献:
hello_world.pdf 来源于planet-lab网站
我现在知道我为什么ssh不能正确连到nodes上了,因为每个站点要两台机器连到planet-lab节点,才能工作.而我们机房里有一台机器不能被ping通,后来我看了planet-lab上的assistance tutorial才知道如何加入planet-lab里的种种步骤和软硬条件.还是挺麻烦的.