Current File : //usr/lib/python2.7/site-packages/salt/utils/msazure.py
# -*- coding: utf-8 -*-
'''
.. versionadded:: 2015.8.0
Utilities for accessing storage container blobs on Azure
'''
# Import python libs
from __future__ import absolute_import, unicode_literals
import logging
# Import azure libs
HAS_LIBS = False
try:
import azure
HAS_LIBS = True
except ImportError:
pass
# Import salt libs
from salt.exceptions import SaltSystemExit
log = logging.getLogger(__name__)
def get_storage_conn(storage_account=None, storage_key=None, opts=None):
'''
.. versionadded:: 2015.8.0
Return a storage_conn object for the storage account
'''
if opts is None:
opts = {}
if not storage_account:
storage_account = opts.get('storage_account', None)
if not storage_key:
storage_key = opts.get('storage_key', None)
return azure.storage.BlobService(storage_account, storage_key)
def list_blobs(storage_conn=None, **kwargs):
'''
.. versionadded:: 2015.8.0
List blobs associated with the container
'''
if not storage_conn:
storage_conn = get_storage_conn(opts=kwargs)
if 'container' not in kwargs:
raise SaltSystemExit(
code=42,
msg='An storage container name must be specified as "container"'
)
data = storage_conn.list_blobs(
container_name=kwargs['container'],
prefix=kwargs.get('prefix', None),
marker=kwargs.get('marker', None),
maxresults=kwargs.get('maxresults', None),
include=kwargs.get('include', None),
delimiter=kwargs.get('delimiter', None),
)
ret = {}
for item in data.blobs:
ret[item.name] = object_to_dict(item)
return ret
def put_blob(storage_conn=None, **kwargs):
'''
.. versionadded:: 2015.8.0
Upload a blob
'''
if not storage_conn:
storage_conn = get_storage_conn(opts=kwargs)
if 'container' not in kwargs:
raise SaltSystemExit(code=42, msg='The blob container name must be specified as "container"')
if 'name' not in kwargs:
raise SaltSystemExit(code=42, msg='The blob name must be specified as "name"')
if 'blob_path' not in kwargs and 'blob_content' not in kwargs:
raise SaltSystemExit(
code=42,
msg='Either a path to a file needs to be passed in as "blob_path" '
'or the contents of a blob as "blob_content."'
)
blob_kwargs = {
'container_name': kwargs['container'],
'blob_name': kwargs['name'],
'cache_control': kwargs.get('cache_control', None),
'content_language': kwargs.get('content_language', None),
'content_md5': kwargs.get('content_md5', None),
'x_ms_blob_content_type': kwargs.get('blob_content_type', None),
'x_ms_blob_content_encoding': kwargs.get('blob_content_encoding', None),
'x_ms_blob_content_language': kwargs.get('blob_content_language', None),
'x_ms_blob_content_md5': kwargs.get('blob_content_md5', None),
'x_ms_blob_cache_control': kwargs.get('blob_cache_control', None),
'x_ms_meta_name_values': kwargs.get('meta_name_values', None),
'x_ms_lease_id': kwargs.get('lease_id', None),
}
if 'blob_path' in kwargs:
data = storage_conn.put_block_blob_from_path(
file_path=kwargs['blob_path'],
**blob_kwargs
)
elif 'blob_content' in kwargs:
data = storage_conn.put_block_blob_from_bytes(
blob=kwargs['blob_content'],
**blob_kwargs
)
return data
def get_blob(storage_conn=None, **kwargs):
'''
.. versionadded:: 2015.8.0
Download a blob
'''
if not storage_conn:
storage_conn = get_storage_conn(opts=kwargs)
if 'container' not in kwargs:
raise SaltSystemExit(code=42, msg='The blob container name must be specified as "container"')
if 'name' not in kwargs:
raise SaltSystemExit(code=42, msg='The blob name must be specified as "name"')
if 'local_path' not in kwargs and 'return_content' not in kwargs:
raise SaltSystemExit(
code=42,
msg='Either a local path needs to be passed in as "local_path", '
'or "return_content" to return the blob contents directly'
)
blob_kwargs = {
'container_name': kwargs['container'],
'blob_name': kwargs['name'],
'snapshot': kwargs.get('snapshot', None),
'x_ms_lease_id': kwargs.get('lease_id', None),
'progress_callback': kwargs.get('progress_callback', None),
'max_connections': kwargs.get('max_connections', 1),
'max_retries': kwargs.get('max_retries', 5),
'retry_wait': kwargs.get('retry_wait', 1),
}
if 'local_path' in kwargs:
data = storage_conn.get_blob_to_path(
file_path=kwargs['local_path'],
open_mode=kwargs.get('open_mode', 'wb'),
**blob_kwargs
)
elif 'return_content' in kwargs:
data = storage_conn.get_blob_to_bytes(
**blob_kwargs
)
return data
def object_to_dict(obj):
'''
.. versionadded:: 2015.8.0
Convert an object to a dictionary
'''
if isinstance(obj, list) or isinstance(obj, tuple):
ret = []
for item in obj:
ret.append(object_to_dict(item))
elif hasattr(obj, '__dict__'):
ret = {}
for item in obj.__dict__:
if item.startswith('_'):
continue
ret[item] = object_to_dict(obj.__dict__[item])
else:
ret = obj
return ret
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