def get_bucket(conn, bucket_id):
"""
Get a bucket from an s3 connection
:param conn: The ``boto.s3.connection.S3Connection``
:param bucket_id: ID of the bucket to fetch
:raises ``glance.exception.NotFound`` if bucket is not found.
"""
bucket = conn.get_bucket(bucket_id)
if not bucket:
msg = "Could not find bucket with ID %s" % bucket_id
LOG.debug(msg)
raise exception.NotFound(msg)
return bucket
def get_key(bucket, obj):
"""
Get a key from a bucket
:param bucket: The ``boto.s3.Bucket``
:param obj: Object to get the key for
:raises ``glance.exception.NotFound`` if key is not found.
"""
key = bucket.get_key(obj)
if not key or not key.exists():
msg = ("Could not find key %(obj)s in bucket %(bucket)s" % {
'obj': obj,
'bucket': bucket
})
LOG.debug(msg)
raise exception.NotFound(msg)
return key