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import re |
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import eventlet |
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import importlib |
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import boto.ec2 |
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import boto.route53 |
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import boto.vpc |
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from st2actions.runners.pythonrunner import Action |
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from ec2parsers import ResultSets |
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class BaseAction(Action): |
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def __init__(self, config): |
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super(BaseAction, self).__init__(config) |
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self.credentials = { |
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'region': None, |
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'aws_access_key_id': None, |
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'aws_secret_access_key': None |
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} |
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if config['st2_user_data']: |
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with open(config['st2_user_data'], 'r') as fp: |
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self.userdata = fp.read() |
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else: |
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self.userdata = None |
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# Note: In old static config credentials and region are under "setup" key and with a new |
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# dynamic config values are top-level |
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access_key_id = config.get('aws_access_key_id', None) |
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secret_access_key = config.get('aws_secret_access_key', None) |
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region = config.get('region', None) |
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if access_key_id and secret_access_key: |
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self.credentials['aws_access_key_id'] = access_key_id |
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self.credentials['aws_secret_access_key'] = secret_access_key |
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self.credentials['region'] = region |
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else: |
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# Assume old-style config |
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self.credentials = config['setup'] |
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self.resultsets = ResultSets() |
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def ec2_connect(self): |
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region = self.credentials['region'] |
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del self.credentials['region'] |
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return boto.ec2.connect_to_region(region, **self.credentials) |
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def vpc_connect(self): |
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region = self.credentials['region'] |
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del self.credentials['region'] |
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return boto.vpc.connect_to_region(region, **self.credentials) |
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def r53_connect(self): |
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del self.credentials['region'] |
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return boto.route53.connection.Route53Connection(**self.credentials) |
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def get_r53zone(self, zone): |
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conn = self.r53_connect() |
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return conn.get_zone(zone) |
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def st2_user_data(self): |
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return self.userdata |
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def split_tags(self, tags): |
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tag_dict = {} |
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split_tags = tags.split(',') |
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for tag in split_tags: |
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if re.search('=', tag): |
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k, v = tag.split('=', 1) |
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tag_dict[k] = v |
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return tag_dict |
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def wait_for_state(self, instance_id, state, timeout=10, retries=3): |
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state_list = {} |
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obj = self.ec2_connect() |
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eventlet.sleep(timeout) |
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instance_list = [] |
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for _ in range(retries + 1): |
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try: |
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instance_list = obj.get_only_instances([instance_id, ]) |
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except Exception: |
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self.logger.info("Waiting for instance to become available") |
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eventlet.sleep(timeout) |
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for instance in instance_list: |
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try: |
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current_state = instance.update() |
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except Exception, e: |
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self.logger.info("Instance (%s) not listed. Error: %s" % |
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(instance_id, e)) |
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eventlet.sleep(timeout) |
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while current_state != state: |
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current_state = instance.update() |
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state_list[instance_id] = current_state |
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return state_list |
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def do_method(self, module_path, cls, action, **kwargs): |
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module = importlib.import_module(module_path) |
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# hack to connect to correct region |
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if cls == 'EC2Connection': |
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obj = self.ec2_connect() |
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elif cls == 'VPCConnection': |
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obj = self.vpc_connect() |
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elif module_path == 'boto.route53.zone' and cls == 'Zone': |
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zone = kwargs['zone'] |
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del kwargs['zone'] |
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obj = self.get_r53zone(zone) |
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else: |
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del self.credentials['region'] |
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obj = getattr(module, cls)(**self.credentials) |
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if not obj: |
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raise ValueError('Invalid or missing credentials (aws_access_key_id,' |
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'aws_secret_access_key) or region') |
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resultset = getattr(obj, action)(**kwargs) |
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formatted = self.resultsets.formatter(resultset) |
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return formatted if isinstance(formatted, list) else [formatted] |
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def do_function(self, module_path, action, **kwargs): |
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module = __import__(module_path) |
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return getattr(module, action)(**kwargs) |
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StackStorm /
st2contrib
