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f3d633780f
String concatenation can at times be easier to read that format(). One should choose whichever approach is more readable.
125 lines
4.8 KiB
Python
125 lines
4.8 KiB
Python
from bootstrapvz.base import Task
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from bootstrapvz.common import phases
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from bootstrapvz.common.exceptions import TaskError
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from bootstrapvz.common.tools import log_check_call
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from ebs import Snapshot
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from bootstrapvz.common.tasks import workspace
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from connection import Connect
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from . import assets
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import os.path
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cert_ec2 = os.path.join(assets, 'certs/cert-ec2.pem')
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class AMIName(Task):
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description = 'Determining the AMI name'
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phase = phases.preparation
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predecessors = [Connect]
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@classmethod
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def run(cls, info):
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ami_name = info.manifest.image['name'].format(**info.manifest_vars)
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ami_description = info.manifest.image['description'].format(**info.manifest_vars)
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images = info._ec2['connection'].get_all_images()
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for image in images:
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if ami_name == image.name:
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msg = 'An image by the name {ami_name} already exists.'.format(ami_name=ami_name)
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raise TaskError(msg)
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info._ec2['ami_name'] = ami_name
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info._ec2['ami_description'] = ami_description
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class BundleImage(Task):
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description = 'Bundling the image'
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phase = phases.image_registration
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@classmethod
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def run(cls, info):
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bundle_name = 'bundle-' + info.run_id
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info._ec2['bundle_path'] = os.path.join(info.workspace, bundle_name)
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arch = {'i386': 'i386', 'amd64': 'x86_64'}.get(info.manifest.system['architecture'])
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log_check_call(['euca-bundle-image',
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'--image', info.volume.image_path,
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'--arch', arch,
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'--user', info.credentials['user-id'],
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'--privatekey', info.credentials['private-key'],
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'--cert', info.credentials['certificate'],
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'--ec2cert', cert_ec2,
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'--destination', info._ec2['bundle_path'],
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'--prefix', info._ec2['ami_name']])
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class UploadImage(Task):
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description = 'Uploading the image bundle'
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phase = phases.image_registration
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predecessors = [BundleImage]
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@classmethod
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def run(cls, info):
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manifest_file = os.path.join(info._ec2['bundle_path'], info._ec2['ami_name'] + '.manifest.xml')
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if info._ec2['region'] == 'us-east-1':
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s3_url = 'https://s3.amazonaws.com/'
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elif info._ec2['region'] == 'cn-north-1':
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s3_url = 'https://s3.cn-north-1.amazonaws.com.cn'
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else:
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s3_url = 'https://s3-{region}.amazonaws.com/'.format(region=info._ec2['region'])
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info._ec2['manifest_location'] = info.manifest.image['bucket'] + '/' + info._ec2['ami_name'] + '.manifest.xml'
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log_check_call(['euca-upload-bundle',
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'--bucket', info.manifest.image['bucket'],
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'--manifest', manifest_file,
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'--access-key', info.credentials['access-key'],
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'--secret-key', info.credentials['secret-key'],
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'--url', s3_url,
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'--region', info._ec2['region'],
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'--ec2cert', cert_ec2])
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class RemoveBundle(Task):
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description = 'Removing the bundle files'
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phase = phases.cleaning
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successors = [workspace.DeleteWorkspace]
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@classmethod
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def run(cls, info):
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from shutil import rmtree
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rmtree(info._ec2['bundle_path'])
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del info._ec2['bundle_path']
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class RegisterAMI(Task):
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description = 'Registering the image as an AMI'
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phase = phases.image_registration
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predecessors = [Snapshot, UploadImage]
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@classmethod
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def run(cls, info):
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registration_params = {'name': info._ec2['ami_name'],
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'description': info._ec2['ami_description']}
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registration_params['architecture'] = {'i386': 'i386',
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'amd64': 'x86_64'}.get(info.manifest.system['architecture'])
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if info.manifest.volume['backing'] == 's3':
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registration_params['image_location'] = info._ec2['manifest_location']
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else:
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root_dev_name = {'pvm': '/dev/sda',
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'hvm': '/dev/xvda'}.get(info.manifest.data['virtualization'])
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registration_params['root_device_name'] = root_dev_name
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from boto.ec2.blockdevicemapping import BlockDeviceType
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from boto.ec2.blockdevicemapping import BlockDeviceMapping
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block_device = BlockDeviceType(snapshot_id=info._ec2['snapshot'].id, delete_on_termination=True,
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size=info.volume.size.get_qty_in('GiB'))
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registration_params['block_device_map'] = BlockDeviceMapping()
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registration_params['block_device_map'][root_dev_name] = block_device
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if info.manifest.data['virtualization'] == 'hvm':
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registration_params['virtualization_type'] = 'hvm'
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else:
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registration_params['virtualization_type'] = 'paravirtual'
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akis_path = os.path.join(os.path.dirname(__file__), 'ami-akis.json')
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from bootstrapvz.common.tools import config_get
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registration_params['kernel_id'] = config_get(akis_path, [info._ec2['region'],
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info.manifest.system['architecture']])
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info._ec2['image'] = info._ec2['connection'].register_image(**registration_params)
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