396 lines
14 KiB
Python
396 lines
14 KiB
Python
|
# Copyright (c) 2006,2007 Mitch Garnaat http://garnaat.org/
|
||
|
|
#
|
||
|
|
# Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
|
# copy of this software and associated documentation files (the
|
||
|
|
# "Software"), to deal in the Software without restriction, including
|
||
|
|
# without limitation the rights to use, copy, modify, merge, publish, dis-
|
||
|
|
# tribute, sublicense, and/or sell copies of the Software, and to permit
|
||
|
|
# persons to whom the Software is furnished to do so, subject to the fol-
|
||
|
|
# lowing conditions:
|
||
|
|
#
|
||
|
|
# The above copyright notice and this permission notice shall be included
|
||
|
|
# in all copies or substantial portions of the Software.
|
||
|
|
#
|
||
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||
|
|
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
|
||
|
|
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
|
||
|
|
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||
|
|
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||
|
|
# IN THE SOFTWARE.
|
||
|
|
"""
|
||
|
|
High-level abstraction of an EC2 server
|
||
|
|
"""
|
||
|
|
|
||
|
|
import boto
|
||
|
|
import boto.utils
|
||
|
|
from boto.compat import StringIO
|
||
|
|
from boto.mashups.iobject import IObject
|
||
|
|
from boto.pyami.config import Config, BotoConfigPath
|
||
|
|
from boto.mashups.interactive import interactive_shell
|
||
|
|
from boto.sdb.db.model import Model
|
||
|
|
from boto.sdb.db.property import StringProperty
|
||
|
|
import os
|
||
|
|
|
||
|
|
|
||
|
|
class ServerSet(list):
|
||
|
|
|
||
|
|
def __getattr__(self, name):
|
||
|
|
results = []
|
||
|
|
is_callable = False
|
||
|
|
for server in self:
|
||
|
|
try:
|
||
|
|
val = getattr(server, name)
|
||
|
|
if callable(val):
|
||
|
|
is_callable = True
|
||
|
|
results.append(val)
|
||
|
|
except:
|
||
|
|
results.append(None)
|
||
|
|
if is_callable:
|
||
|
|
self.map_list = results
|
||
|
|
return self.map
|
||
|
|
return results
|
||
|
|
|
||
|
|
def map(self, *args):
|
||
|
|
results = []
|
||
|
|
for fn in self.map_list:
|
||
|
|
results.append(fn(*args))
|
||
|
|
return results
|
||
|
|
|
||
|
|
class Server(Model):
|
||
|
|
|
||
|
|
@property
|
||
|
|
def ec2(self):
|
||
|
|
if self._ec2 is None:
|
||
|
|
self._ec2 = boto.connect_ec2()
|
||
|
|
return self._ec2
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def Inventory(cls):
|
||
|
|
"""
|
||
|
|
Returns a list of Server instances, one for each Server object
|
||
|
|
persisted in the db
|
||
|
|
"""
|
||
|
|
l = ServerSet()
|
||
|
|
rs = cls.find()
|
||
|
|
for server in rs:
|
||
|
|
l.append(server)
|
||
|
|
return l
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def Register(cls, name, instance_id, description=''):
|
||
|
|
s = cls()
|
||
|
|
s.name = name
|
||
|
|
s.instance_id = instance_id
|
||
|
|
s.description = description
|
||
|
|
s.save()
|
||
|
|
return s
|
||
|
|
|
||
|
|
def __init__(self, id=None, **kw):
|
||
|
|
super(Server, self).__init__(id, **kw)
|
||
|
|
self._reservation = None
|
||
|
|
self._instance = None
|
||
|
|
self._ssh_client = None
|
||
|
|
self._pkey = None
|
||
|
|
self._config = None
|
||
|
|
self._ec2 = None
|
||
|
|
|
||
|
|
name = StringProperty(unique=True, verbose_name="Name")
|
||
|
|
instance_id = StringProperty(verbose_name="Instance ID")
|
||
|
|
config_uri = StringProperty()
|
||
|
|
ami_id = StringProperty(verbose_name="AMI ID")
|
||
|
|
zone = StringProperty(verbose_name="Availability Zone")
|
||
|
|
security_group = StringProperty(verbose_name="Security Group", default="default")
|
||
|
|
key_name = StringProperty(verbose_name="Key Name")
|
||
|
|
elastic_ip = StringProperty(verbose_name="Elastic IP")
|
||
|
|
instance_type = StringProperty(verbose_name="Instance Type")
|
||
|
|
description = StringProperty(verbose_name="Description")
|
||
|
|
log = StringProperty()
|
||
|
|
|
||
|
|
def setReadOnly(self, value):
|
||
|
|
raise AttributeError
|
||
|
|
|
||
|
|
def getInstance(self):
|
||
|
|
if not self._instance:
|
||
|
|
if self.instance_id:
|
||
|
|
try:
|
||
|
|
rs = self.ec2.get_all_reservations([self.instance_id])
|
||
|
|
except:
|
||
|
|
return None
|
||
|
|
if len(rs) > 0:
|
||
|
|
self._reservation = rs[0]
|
||
|
|
self._instance = self._reservation.instances[0]
|
||
|
|
return self._instance
|
||
|
|
|
||
|
|
instance = property(getInstance, setReadOnly, None, 'The Instance for the server')
|
||
|
|
|
||
|
|
def getAMI(self):
|
||
|
|
if self.instance:
|
||
|
|
return self.instance.image_id
|
||
|
|
|
||
|
|
ami = property(getAMI, setReadOnly, None, 'The AMI for the server')
|
||
|
|
|
||
|
|
def getStatus(self):
|
||
|
|
if self.instance:
|
||
|
|
self.instance.update()
|
||
|
|
return self.instance.state
|
||
|
|
|
||
|
|
status = property(getStatus, setReadOnly, None,
|
||
|
|
'The status of the server')
|
||
|
|
|
||
|
|
def getHostname(self):
|
||
|
|
if self.instance:
|
||
|
|
return self.instance.public_dns_name
|
||
|
|
|
||
|
|
hostname = property(getHostname, setReadOnly, None,
|
||
|
|
'The public DNS name of the server')
|
||
|
|
|
||
|
|
def getPrivateHostname(self):
|
||
|
|
if self.instance:
|
||
|
|
return self.instance.private_dns_name
|
||
|
|
|
||
|
|
private_hostname = property(getPrivateHostname, setReadOnly, None,
|
||
|
|
'The private DNS name of the server')
|
||
|
|
|
||
|
|
def getLaunchTime(self):
|
||
|
|
if self.instance:
|
||
|
|
return self.instance.launch_time
|
||
|
|
|
||
|
|
launch_time = property(getLaunchTime, setReadOnly, None,
|
||
|
|
'The time the Server was started')
|
||
|
|
|
||
|
|
def getConsoleOutput(self):
|
||
|
|
if self.instance:
|
||
|
|
return self.instance.get_console_output()
|
||
|
|
|
||
|
|
console_output = property(getConsoleOutput, setReadOnly, None,
|
||
|
|
'Retrieve the console output for server')
|
||
|
|
|
||
|
|
def getGroups(self):
|
||
|
|
if self._reservation:
|
||
|
|
return self._reservation.groups
|
||
|
|
else:
|
||
|
|
return None
|
||
|
|
|
||
|
|
groups = property(getGroups, setReadOnly, None,
|
||
|
|
'The Security Groups controlling access to this server')
|
||
|
|
|
||
|
|
def getConfig(self):
|
||
|
|
if not self._config:
|
||
|
|
remote_file = BotoConfigPath
|
||
|
|
local_file = '%s.ini' % self.instance.id
|
||
|
|
self.get_file(remote_file, local_file)
|
||
|
|
self._config = Config(local_file)
|
||
|
|
return self._config
|
||
|
|
|
||
|
|
def setConfig(self, config):
|
||
|
|
local_file = '%s.ini' % self.instance.id
|
||
|
|
fp = open(local_file)
|
||
|
|
config.write(fp)
|
||
|
|
fp.close()
|
||
|
|
self.put_file(local_file, BotoConfigPath)
|
||
|
|
self._config = config
|
||
|
|
|
||
|
|
config = property(getConfig, setConfig, None,
|
||
|
|
'The instance data for this server')
|
||
|
|
|
||
|
|
def set_config(self, config):
|
||
|
|
"""
|
||
|
|
Set SDB based config
|
||
|
|
"""
|
||
|
|
self._config = config
|
||
|
|
self._config.dump_to_sdb("botoConfigs", self.id)
|
||
|
|
|
||
|
|
def load_config(self):
|
||
|
|
self._config = Config(do_load=False)
|
||
|
|
self._config.load_from_sdb("botoConfigs", self.id)
|
||
|
|
|
||
|
|
def stop(self):
|
||
|
|
if self.instance:
|
||
|
|
self.instance.stop()
|
||
|
|
|
||
|
|
def start(self):
|
||
|
|
self.stop()
|
||
|
|
ec2 = boto.connect_ec2()
|
||
|
|
ami = ec2.get_all_images(image_ids = [str(self.ami_id)])[0]
|
||
|
|
groups = ec2.get_all_security_groups(groupnames=[str(self.security_group)])
|
||
|
|
if not self._config:
|
||
|
|
self.load_config()
|
||
|
|
if not self._config.has_section("Credentials"):
|
||
|
|
self._config.add_section("Credentials")
|
||
|
|
self._config.set("Credentials", "aws_access_key_id", ec2.aws_access_key_id)
|
||
|
|
self._config.set("Credentials", "aws_secret_access_key", ec2.aws_secret_access_key)
|
||
|
|
|
||
|
|
if not self._config.has_section("Pyami"):
|
||
|
|
self._config.add_section("Pyami")
|
||
|
|
|
||
|
|
if self._manager.domain:
|
||
|
|
self._config.set('Pyami', 'server_sdb_domain', self._manager.domain.name)
|
||
|
|
self._config.set("Pyami", 'server_sdb_name', self.name)
|
||
|
|
|
||
|
|
cfg = StringIO()
|
||
|
|
self._config.write(cfg)
|
||
|
|
cfg = cfg.getvalue()
|
||
|
|
r = ami.run(min_count=1,
|
||
|
|
max_count=1,
|
||
|
|
key_name=self.key_name,
|
||
|
|
security_groups = groups,
|
||
|
|
instance_type = self.instance_type,
|
||
|
|
placement = self.zone,
|
||
|
|
user_data = cfg)
|
||
|
|
i = r.instances[0]
|
||
|
|
self.instance_id = i.id
|
||
|
|
self.put()
|
||
|
|
if self.elastic_ip:
|
||
|
|
ec2.associate_address(self.instance_id, self.elastic_ip)
|
||
|
|
|
||
|
|
def reboot(self):
|
||
|
|
if self.instance:
|
||
|
|
self.instance.reboot()
|
||
|
|
|
||
|
|
def get_ssh_client(self, key_file=None, host_key_file='~/.ssh/known_hosts',
|
||
|
|
uname='root'):
|
||
|
|
import paramiko
|
||
|
|
if not self.instance:
|
||
|
|
print('No instance yet!')
|
||
|
|
return
|
||
|
|
if not self._ssh_client:
|
||
|
|
if not key_file:
|
||
|
|
iobject = IObject()
|
||
|
|
key_file = iobject.get_filename('Path to OpenSSH Key file')
|
||
|
|
self._pkey = paramiko.RSAKey.from_private_key_file(key_file)
|
||
|
|
self._ssh_client = paramiko.SSHClient()
|
||
|
|
self._ssh_client.load_system_host_keys()
|
||
|
|
self._ssh_client.load_host_keys(os.path.expanduser(host_key_file))
|
||
|
|
self._ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
|
||
|
|
self._ssh_client.connect(self.instance.public_dns_name,
|
||
|
|
username=uname, pkey=self._pkey)
|
||
|
|
return self._ssh_client
|
||
|
|
|
||
|
|
def get_file(self, remotepath, localpath):
|
||
|
|
ssh_client = self.get_ssh_client()
|
||
|
|
sftp_client = ssh_client.open_sftp()
|
||
|
|
sftp_client.get(remotepath, localpath)
|
||
|
|
|
||
|
|
def put_file(self, localpath, remotepath):
|
||
|
|
ssh_client = self.get_ssh_client()
|
||
|
|
sftp_client = ssh_client.open_sftp()
|
||
|
|
sftp_client.put(localpath, remotepath)
|
||
|
|
|
||
|
|
def listdir(self, remotepath):
|
||
|
|
ssh_client = self.get_ssh_client()
|
||
|
|
sftp_client = ssh_client.open_sftp()
|
||
|
|
return sftp_client.listdir(remotepath)
|
||
|
|
|
||
|
|
def shell(self, key_file=None):
|
||
|
|
ssh_client = self.get_ssh_client(key_file)
|
||
|
|
channel = ssh_client.invoke_shell()
|
||
|
|
interactive_shell(channel)
|
||
|
|
|
||
|
|
def bundle_image(self, prefix, key_file, cert_file, size):
|
||
|
|
print('bundling image...')
|
||
|
|
print('\tcopying cert and pk over to /mnt directory on server')
|
||
|
|
ssh_client = self.get_ssh_client()
|
||
|
|
sftp_client = ssh_client.open_sftp()
|
||
|
|
path, name = os.path.split(key_file)
|
||
|
|
remote_key_file = '/mnt/%s' % name
|
||
|
|
self.put_file(key_file, remote_key_file)
|
||
|
|
path, name = os.path.split(cert_file)
|
||
|
|
remote_cert_file = '/mnt/%s' % name
|
||
|
|
self.put_file(cert_file, remote_cert_file)
|
||
|
|
print('\tdeleting %s' % BotoConfigPath)
|
||
|
|
# delete the metadata.ini file if it exists
|
||
|
|
try:
|
||
|
|
sftp_client.remove(BotoConfigPath)
|
||
|
|
except:
|
||
|
|
pass
|
||
|
|
command = 'sudo ec2-bundle-vol '
|
||
|
|
command += '-c %s -k %s ' % (remote_cert_file, remote_key_file)
|
||
|
|
command += '-u %s ' % self._reservation.owner_id
|
||
|
|
command += '-p %s ' % prefix
|
||
|
|
command += '-s %d ' % size
|
||
|
|
command += '-d /mnt '
|
||
|
|
if self.instance.instance_type == 'm1.small' or self.instance_type == 'c1.medium':
|
||
|
|
command += '-r i386'
|
||
|
|
else:
|
||
|
|
command += '-r x86_64'
|
||
|
|
print('\t%s' % command)
|
||
|
|
t = ssh_client.exec_command(command)
|
||
|
|
response = t[1].read()
|
||
|
|
print('\t%s' % response)
|
||
|
|
print('\t%s' % t[2].read())
|
||
|
|
print('...complete!')
|
||
|
|
|
||
|
|
def upload_bundle(self, bucket, prefix):
|
||
|
|
print('uploading bundle...')
|
||
|
|
command = 'ec2-upload-bundle '
|
||
|
|
command += '-m /mnt/%s.manifest.xml ' % prefix
|
||
|
|
command += '-b %s ' % bucket
|
||
|
|
command += '-a %s ' % self.ec2.aws_access_key_id
|
||
|
|
command += '-s %s ' % self.ec2.aws_secret_access_key
|
||
|
|
print('\t%s' % command)
|
||
|
|
ssh_client = self.get_ssh_client()
|
||
|
|
t = ssh_client.exec_command(command)
|
||
|
|
response = t[1].read()
|
||
|
|
print('\t%s' % response)
|
||
|
|
print('\t%s' % t[2].read())
|
||
|
|
print('...complete!')
|
||
|
|
|
||
|
|
def create_image(self, bucket=None, prefix=None, key_file=None, cert_file=None, size=None):
|
||
|
|
iobject = IObject()
|
||
|
|
if not bucket:
|
||
|
|
bucket = iobject.get_string('Name of S3 bucket')
|
||
|
|
if not prefix:
|
||
|
|
prefix = iobject.get_string('Prefix for AMI file')
|
||
|
|
if not key_file:
|
||
|
|
key_file = iobject.get_filename('Path to RSA private key file')
|
||
|
|
if not cert_file:
|
||
|
|
cert_file = iobject.get_filename('Path to RSA public cert file')
|
||
|
|
if not size:
|
||
|
|
size = iobject.get_int('Size (in MB) of bundled image')
|
||
|
|
self.bundle_image(prefix, key_file, cert_file, size)
|
||
|
|
self.upload_bundle(bucket, prefix)
|
||
|
|
print('registering image...')
|
||
|
|
self.image_id = self.ec2.register_image('%s/%s.manifest.xml' % (bucket, prefix))
|
||
|
|
return self.image_id
|
||
|
|
|
||
|
|
def attach_volume(self, volume, device="/dev/sdp"):
|
||
|
|
"""
|
||
|
|
Attach an EBS volume to this server
|
||
|
|
|
||
|
|
:param volume: EBS Volume to attach
|
||
|
|
:type volume: boto.ec2.volume.Volume
|
||
|
|
|
||
|
|
:param device: Device to attach to (default to /dev/sdp)
|
||
|
|
:type device: string
|
||
|
|
"""
|
||
|
|
if hasattr(volume, "id"):
|
||
|
|
volume_id = volume.id
|
||
|
|
else:
|
||
|
|
volume_id = volume
|
||
|
|
return self.ec2.attach_volume(volume_id=volume_id, instance_id=self.instance_id, device=device)
|
||
|
|
|
||
|
|
def detach_volume(self, volume):
|
||
|
|
"""
|
||
|
|
Detach an EBS volume from this server
|
||
|
|
|
||
|
|
:param volume: EBS Volume to detach
|
||
|
|
:type volume: boto.ec2.volume.Volume
|
||
|
|
"""
|
||
|
|
if hasattr(volume, "id"):
|
||
|
|
volume_id = volume.id
|
||
|
|
else:
|
||
|
|
volume_id = volume
|
||
|
|
return self.ec2.detach_volume(volume_id=volume_id, instance_id=self.instance_id)
|
||
|
|
|
||
|
|
def install_package(self, package_name):
|
||
|
|
print('installing %s...' % package_name)
|
||
|
|
command = 'yum -y install %s' % package_name
|
||
|
|
print('\t%s' % command)
|
||
|
|
ssh_client = self.get_ssh_client()
|
||
|
|
t = ssh_client.exec_command(command)
|
||
|
|
response = t[1].read()
|
||
|
|
print('\t%s' % response)
|
||
|
|
print('\t%s' % t[2].read())
|
||
|
|
print('...complete!')
|