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https://github.com/kevingruesser/bootstrap-vz.git
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b934808cce
Use the function waituntil() available in the integration-test branch to simplify the code that retrieves the IP of the instance. A 'TODO' note was also added to remember us to merge this function once it gets merged.
71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
from bootstrapvz.base import Task
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from bootstrapvz.common import phases
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from bootstrapvz.providers.ec2.tasks import ami
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import logging
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# TODO: Merge with the method available in wip-integration-tests branch
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def waituntil(predicate, timeout=5, interval=0.05):
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import time
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threshhold = time.time() + timeout
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while time.time() < threshhold:
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if predicate():
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return True
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time.sleep(interval)
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return False
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class LaunchEC2Instance(Task):
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description = 'Launching EC2 instance'
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phase = phases.image_registration
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predecessors = [ami.RegisterAMI]
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@classmethod
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def run(cls, info):
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conn = info._ec2['connection']
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r = conn.run_instances(info._ec2['image'],
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security_group_ids=info.manifest.plugins['ec2_launch'].get('security_group_ids'),
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instance_type=info.manifest.plugins['ec2_launch'].get('instance_type', 't2.micro'))
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info._ec2['instance_id'] = r.instances[0].id
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if 'tags' in info.manifest.plugins['ec2_launch']:
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def apply_format(v):
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return v.format(**info.manifest_vars)
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tags = info.manifest.plugins['ec2_launch']['tags']
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r = {k: apply_format(v) for k, v in tags.items()}
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conn.create_tags([info._ec2['instance_id']], r)
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class PrintPublicIPAddress(Task):
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description = 'Waiting for the instance to launch'
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phase = phases.image_registration
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predecessors = [LaunchEC2Instance]
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@classmethod
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def run(cls, info):
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ec2 = info._ec2
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logger = logging.getLogger(__name__)
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filename = info.manifest.plugins['ec2_launch']['print_public_ip']
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if not filename:
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filename = '/dev/null'
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f = open(filename, 'w')
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r = ec2['connection'].get_only_instances([ec2['instance_id']])
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if not r and not r[0]:
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logger.error('Could not get instance metadata')
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f.write('')
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else:
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instance = r[0]
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def instance_has_ip():
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instance.update()
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return instance.ip_address
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if waituntil(instance_has_ip, timeout=120, interval=5):
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logger.info('******* EC2 IP ADDRESS: %s *******' % instance.ip_address)
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f.write(instance.ip_address)
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else:
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logger.error('Could not get IP address for the instance')
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f.write('')
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f.close()
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