212 lines
7.4 KiB
Python
212 lines
7.4 KiB
Python
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# Copyright (c) 2006,2007 Mitch Garnaat http://garnaat.org/
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish, dis-
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# tribute, sublicense, and/or sell copies of the Software, and to permit
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# persons to whom the Software is furnished to do so, subject to the fol-
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# lowing conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
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# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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"""
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High-level abstraction of an EC2 order for servers
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"""
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import boto
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import boto.ec2
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from boto.mashups.server import Server, ServerSet
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from boto.mashups.iobject import IObject
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from boto.pyami.config import Config
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from boto.sdb.persist import get_domain, set_domain
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import time
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from boto.compat import StringIO
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InstanceTypes = ['m1.small', 'm1.large', 'm1.xlarge', 'c1.medium', 'c1.xlarge']
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class Item(IObject):
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def __init__(self):
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self.region = None
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self.name = None
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self.instance_type = None
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self.quantity = 0
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self.zone = None
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self.ami = None
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self.groups = []
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self.key = None
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self.ec2 = None
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self.config = None
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def set_userdata(self, key, value):
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self.userdata[key] = value
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def get_userdata(self, key):
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return self.userdata[key]
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def set_region(self, region=None):
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if region:
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self.region = region
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else:
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l = [(r, r.name, r.endpoint) for r in boto.ec2.regions()]
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self.region = self.choose_from_list(l, prompt='Choose Region')
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def set_name(self, name=None):
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if name:
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self.name = name
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else:
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self.name = self.get_string('Name')
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def set_instance_type(self, instance_type=None):
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if instance_type:
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self.instance_type = instance_type
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else:
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self.instance_type = self.choose_from_list(InstanceTypes, 'Instance Type')
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def set_quantity(self, n=0):
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if n > 0:
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self.quantity = n
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else:
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self.quantity = self.get_int('Quantity')
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def set_zone(self, zone=None):
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if zone:
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self.zone = zone
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else:
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l = [(z, z.name, z.state) for z in self.ec2.get_all_zones()]
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self.zone = self.choose_from_list(l, prompt='Choose Availability Zone')
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def set_ami(self, ami=None):
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if ami:
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self.ami = ami
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else:
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l = [(a, a.id, a.location) for a in self.ec2.get_all_images()]
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self.ami = self.choose_from_list(l, prompt='Choose AMI')
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def add_group(self, group=None):
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if group:
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self.groups.append(group)
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else:
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l = [(s, s.name, s.description) for s in self.ec2.get_all_security_groups()]
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self.groups.append(self.choose_from_list(l, prompt='Choose Security Group'))
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def set_key(self, key=None):
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if key:
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self.key = key
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else:
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l = [(k, k.name, '') for k in self.ec2.get_all_key_pairs()]
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self.key = self.choose_from_list(l, prompt='Choose Keypair')
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def update_config(self):
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if not self.config.has_section('Credentials'):
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self.config.add_section('Credentials')
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self.config.set('Credentials', 'aws_access_key_id', self.ec2.aws_access_key_id)
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self.config.set('Credentials', 'aws_secret_access_key', self.ec2.aws_secret_access_key)
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if not self.config.has_section('Pyami'):
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self.config.add_section('Pyami')
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sdb_domain = get_domain()
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if sdb_domain:
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self.config.set('Pyami', 'server_sdb_domain', sdb_domain)
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self.config.set('Pyami', 'server_sdb_name', self.name)
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def set_config(self, config_path=None):
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if not config_path:
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config_path = self.get_filename('Specify Config file')
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self.config = Config(path=config_path)
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def get_userdata_string(self):
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s = StringIO()
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self.config.write(s)
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return s.getvalue()
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def enter(self, **params):
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self.region = params.get('region', self.region)
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if not self.region:
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self.set_region()
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self.ec2 = self.region.connect()
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self.name = params.get('name', self.name)
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if not self.name:
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self.set_name()
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self.instance_type = params.get('instance_type', self.instance_type)
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if not self.instance_type:
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self.set_instance_type()
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self.zone = params.get('zone', self.zone)
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if not self.zone:
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self.set_zone()
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self.quantity = params.get('quantity', self.quantity)
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if not self.quantity:
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self.set_quantity()
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self.ami = params.get('ami', self.ami)
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if not self.ami:
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self.set_ami()
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self.groups = params.get('groups', self.groups)
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if not self.groups:
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self.add_group()
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self.key = params.get('key', self.key)
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if not self.key:
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self.set_key()
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self.config = params.get('config', self.config)
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if not self.config:
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self.set_config()
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self.update_config()
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class Order(IObject):
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def __init__(self):
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self.items = []
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self.reservation = None
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def add_item(self, **params):
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item = Item()
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item.enter(**params)
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self.items.append(item)
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def display(self):
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print('This Order consists of the following items')
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print()
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print('QTY\tNAME\tTYPE\nAMI\t\tGroups\t\t\tKeyPair')
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for item in self.items:
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print('%s\t%s\t%s\t%s\t%s\t%s' % (item.quantity, item.name, item.instance_type,
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item.ami.id, item.groups, item.key.name))
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def place(self, block=True):
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if get_domain() is None:
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print('SDB Persistence Domain not set')
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domain_name = self.get_string('Specify SDB Domain')
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set_domain(domain_name)
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s = ServerSet()
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for item in self.items:
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r = item.ami.run(min_count=1, max_count=item.quantity,
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key_name=item.key.name, user_data=item.get_userdata_string(),
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security_groups=item.groups, instance_type=item.instance_type,
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placement=item.zone.name)
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if block:
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states = [i.state for i in r.instances]
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if states.count('running') != len(states):
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print(states)
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time.sleep(15)
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states = [i.update() for i in r.instances]
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for i in r.instances:
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server = Server()
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server.name = item.name
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server.instance_id = i.id
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server.reservation = r
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server.save()
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s.append(server)
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if len(s) == 1:
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return s[0]
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else:
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return s
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