deb-sahara/sahara/utils/general.py
Li, Chen e1f5bcf08c Add CLUSTER_STATUS
We should define a set of CLUSTER_STATUS in stead of using direct string
in code.

1. Add cluster.py in utils/
2. Add cluster status.
3. move cluster operation related methods from general.py to cluster.py

Change-Id: Id95d982a911ab5d0f789265e03bff2256cf75856
2015-08-03 09:12:36 +08:00

78 lines
2.0 KiB
Python

# Copyright (c) 2013 Mirantis Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import re
import six
NATURAL_SORT_RE = re.compile('([0-9]+)')
def find_dict(iterable, **rules):
"""Search for dict in iterable of dicts using specified key-value rules."""
for item in iterable:
# assert all key-value pairs from rules dict
ok = True
for k, v in six.iteritems(rules):
ok = ok and k in item and item[k] == v
if ok:
return item
return None
def find(lst, **kwargs):
for obj in lst:
match = True
for attr, value in kwargs.items():
if getattr(obj, attr) != value:
match = False
if match:
return obj
return None
def get_by_id(lst, id):
for obj in lst:
if obj.id == id:
return obj
return None
# Taken from http://stackoverflow.com/questions/4836710/does-
# python-have-a-built-in-function-for-string-natural-sort
def natural_sort_key(s):
return [int(text) if text.isdigit() else text.lower()
for text in re.split(NATURAL_SORT_RE, s)]
def generate_instance_name(cluster_name, node_group_name, index):
return ("%s-%s-%03d" % (cluster_name, node_group_name, index)).lower()
def generate_auto_security_group_name(node_group):
return ("%s-%s-%s" % (node_group.cluster.name, node_group.name,
node_group.id[:8])).lower()
def generate_aa_group_name(cluster_name):
return ("%s-aa-group" % cluster_name).lower()