deb-sahara/sahara/plugins/cdh/db_helper.py
Ken Chen e0a8754efc Remove duplicated codes in CDH plugin
We eliminated dup codes by using common-used methods.

Closes-bug: #1444816
Change-Id: Ib6ca7ef8da07769581e72cf2a15a297c81ebc6c1
2015-04-16 23:33:24 +08:00

53 lines
1.6 KiB
Python

# Copyright (c) 2015 Intel Corporation.
#
# 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 uuid
import six
from sahara import conductor
from sahara import context
conductor = conductor.API
def get_password_from_db(cluster, pwname):
ctx = context.ctx()
cluster = conductor.cluster_get(ctx, cluster.id)
passwd = cluster.extra.get(pwname) if cluster.extra else None
if passwd:
return passwd
passwd = six.text_type(uuid.uuid4())
extra = cluster.extra.to_dict() if cluster.extra else {}
extra[pwname] = passwd
cluster = conductor.cluster_update(ctx, cluster, {'extra': extra})
return passwd
def get_cm_password(cluster):
return get_password_from_db(cluster, 'cm_password')
def remote_execute_db_script(remote, script_content):
script_name = 'script_to_exec.sql'
remote.write_file_to(script_name, script_content)
psql_cmd = ('PGPASSWORD=$(sudo head -1 /var/lib/cloudera-scm-server-db'
'/data/generated_password.txt) psql -U cloudera-scm '
'-h localhost -p 7432 -d scm -f %s') % script_name
remote.execute_command(psql_cmd)
remote.execute_command('rm %s' % script_name)