def _get_s3_connection(self, access_key, secret_key, host=DEFAULT_HOST):
old_logger = boto.log.error
boto.log.error = lambda x: x
tx_s3_conn = None
try:
if not secret_key or not access_key:
raise EC2ResponseError('', '', '')
s3_conn = S3Connection(access_key, secret_key, host=host)
tx_s3_conn = TwistedS3Connection.adapt(s3_conn)
except EC2ResponseError:
log.error('Invalid Keys. '
'Check your EC2 Access Key and EC2 Secret Key.')
return
except gaierror, e:
log.error(e.strerror)
return
def collect(self, config):
data = self.new_data()
bucket_keys = {}
# Add support Signature V4 for 's3' into boto config
if not boto.config.get('s3', 'use-sigv4'):
boto.config.add_section('s3')
boto.config.set('s3', 'use-sigv4', 'True')
ds0 = config.datasources[0]
s3connection = TwistedS3Connection.adapt(boto.s3.connect_to_region(
S3BucketPlugin.DEFAULT_REGION,
aws_access_key_id=ds0.ec2accesskey,
aws_secret_access_key=ds0.ec2secretkey,
))
try:
buckets = yield s3connection.get_all_buckets()
except Exception as ex:
log.error("Unable to get buckets for %s region, %s",
S3BucketPlugin.DEFAULT_REGION, str(ex))
else:
data['events'].append({
'summary': 'Monitoring ok',
'eventClass': '/Status',
'eventKey': 'aws_bucket_result',
'severity': ZenEventClasses.Clear,
})
bucket_region = {}
connections = {}
for ds in config.datasources:
region = ds.params['region']
if region == "" or region is None:
continue
bucket_region[ds.component] = region
if region not in connections:
s3conn = boto.s3.connect_to_region(
region,
aws_access_key_id=ds0.ec2accesskey,
aws_secret_access_key=ds0.ec2secretkey,)
if s3conn:
connections[region] = TwistedS3Connection.adapt(s3conn)
else:
log.error("Unable to initiate an S3 connection to "
"region: %s, plugin: %s, template: %s, "
"datasource: %s, device: %s, component: %s",
region, ds.plugin_classname, ds.template,
ds.datasource, ds.device, ds.component)
deferreds = []
names = []
for bucket in buckets:
region = bucket_region.get(bucket.name)
if region is None:
log.error("Bucket %s: Unable to determine region: skipping collection until this S3Bucket is modeled", bucket.name)
continue
if bool(connections):
if connections.get(region) is None:
log.error("Bucket %s: Unable to connect to region %s: skipping collection", bucket.name, region)
continue
# to retrieve further information about the bucket, we need to
# query the right region. Switch its connection over to the
# right one.
bucket.connection = connections[region]
d = bucket.get_all_keys()
names.append(bucket.name)
deferreds.append(d)
# Collect all of the bucket keys in parallel
results = yield defer.DeferredList(deferreds, consumeErrors=True)
for i, value in enumerate(results):
success, result = value
name = names[i]
if success:
# value is a list of keys.
bucket_keys.update({name: result})
else:
# result is a twisted Failure object, and result.value is the
# exception that occurred.
bucket_keys.update({name: result.value})
for ds in config.datasources:
self.component = ds.component
keys = bucket_keys.get(ds.component) or []
if not isinstance(keys, list):
data['events'].append({
'component': self.component,
'summary': str(keys),
'eventClass': '/Status',
'eventKey': 'aws_result',
'severity': ZenEventClasses.Error,
})
continue
data['values'][ds.component] = dict(
keys_count=(len(keys), 'N'),
total_size=(sum([key.size for key in keys]), 'N'),
)
defer.returnValue(data)
