103 lines
2.6 KiB
Python
103 lines
2.6 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import six
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from savanna import conductor as c
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from savanna import context
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conductor = c.API
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def find_dict(iterable, **rules):
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"""Search for dict in iterable of dicts using specified key-value rules."""
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for item in iterable:
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# assert all key-value pairs from rules dict
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ok = True
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for k, v in six.iteritems(rules):
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ok = ok and k in item and item[k] == v
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if ok:
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return item
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return None
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def find(lst, **kwargs):
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for obj in lst:
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match = True
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for attr, value in kwargs.items():
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if getattr(obj, attr) != value:
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match = False
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if match:
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return obj
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return None
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def get_by_id(lst, id):
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for obj in lst:
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if obj.id == id:
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return obj
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return None
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def format_cluster_status(cluster):
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msg = "Cluster status has been changed: id=%s, New status=%s"
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if cluster:
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return msg % (cluster.id, cluster.status)
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return msg % ("Unknown", "Unknown")
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def check_cluster_exists(cluster):
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ctx = context.ctx()
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# check if cluster still exists (it might have been removed)
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cluster = conductor.cluster_get(ctx, cluster)
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return cluster is not None
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def get_instances(cluster, instances_ids=None):
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inst_map = {}
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for node_group in cluster.node_groups:
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for instance in node_group.instances:
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inst_map[instance.id] = instance
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if instances_ids is not None:
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return [inst_map[id] for id in instances_ids]
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else:
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return [v for v in six.itervalues(inst_map)]
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def clean_cluster_from_empty_ng(cluster):
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ctx = context.ctx()
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for ng in cluster.node_groups:
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if ng.count == 0:
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conductor.node_group_remove(ctx, ng)
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def generate_etc_hosts(cluster):
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hosts = "127.0.0.1 localhost\n"
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for node_group in cluster.node_groups:
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for instance in node_group.instances:
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hosts += "%s %s %s\n" % (instance.internal_ip,
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instance.fqdn(),
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instance.hostname())
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return hosts
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