Container Infrastructure Management Service for OpenStack
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# Copyright (c) 2018 European Organization for Nuclear Research.
# All Rights Reserved.
#
# 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.
"""change cluster to support nodegroups
Revision ID: 461d798132c7
Revises: ac92cbae311c
Create Date: 2019-02-06 14:32:40.316528
"""
# revision identifiers, used by Alembic.
revision = '461d798132c7'
down_revision = 'ac92cbae311c'
from alembic import op
import sqlalchemy as sa
from oslo_db.sqlalchemy.types import String
from oslo_serialization import jsonutils
from oslo_utils import uuidutils
from magnum.db.sqlalchemy import models
def _handle_json_columns(value, default=None):
if value is not None:
return jsonutils.loads(value)
return default
def upgrade():
nodegroup = sa.sql.table(
'nodegroup',
sa.Column('created_at', sa.DateTime(), default=sa.func.now()),
sa.Column('uuid', String(length=36), nullable=False),
sa.Column('name', String(length=255), nullable=False),
sa.Column('cluster_id', String(length=255), nullable=False),
sa.Column('project_id', String(length=255), nullable=False),
sa.Column('docker_volume_size', sa.Integer(), nullable=True),
sa.Column('labels', models.JSONEncodedDict, nullable=True),
sa.Column('flavor_id', String(length=255), nullable=True),
sa.Column('image_id', String(length=255), nullable=True),
sa.Column('node_addresses', models.JSONEncodedList(), nullable=True),
sa.Column('node_count', sa.Integer, nullable=True),
sa.Column('max_node_count', sa.Integer, nullable=True),
sa.Column('min_node_count', sa.Integer, nullable=True),
sa.Column('role', String(length=255), nullable=True),
sa.Column('is_default', sa.Boolean())
)
connection = op.get_bind()
# Fetching all required info from existing cluster
res = connection.execute(
"SELECT "
"cluster.uuid, "
"cluster.name, "
"cluster.project_id, "
"cluster.docker_volume_size, "
"cluster.labels, "
"cluster.master_flavor_id, "
"cluster.flavor_id, "
"cluster.node_count, "
"cluster.master_count, "
"cluster.node_addresses, "
"cluster.master_addresses, "
"cluster_template.master_flavor_id, "
"cluster_template.flavor_id, "
"cluster_template.image_id "
"FROM cluster INNER JOIN cluster_template "
"ON cluster.cluster_template_id=cluster_template.uuid"
)
results = res.fetchall()
# Create a list containing populated master nodegroups
master_ngs = [{
'uuid': uuidutils.generate_uuid(),
'name': '%s-master' % rs[1],
'cluster_id': rs[0],
'project_id': rs[2],
'docker_volume_size': rs[3],
'labels': _handle_json_columns(rs[4]),
'flavor_id': rs[5] or rs[11],
'image_id': rs[13],
'node_addresses': _handle_json_columns(rs[10]),
'node_count': rs[8],
'role': 'master',
'min_node_count': 1,
'is_default': True
} for rs in results]
# Create a list containing populated worker nodegroups
worker_ngs = [{
'uuid': uuidutils.generate_uuid(),
'name': '%s-worker' % rs[1],
'cluster_id': rs[0],
'project_id': rs[2],
'docker_volume_size': rs[3],
'labels': _handle_json_columns(rs[4]),
'flavor_id': rs[6] or rs[12],
'image_id': rs[13],
'node_addresses': _handle_json_columns(rs[9]),
'node_count': rs[7],
'role': "worker",
'min_node_count': 1,
'is_default': True
} for rs in results]
# Insert the populated nodegroups
op.bulk_insert(nodegroup, master_ngs)
op.bulk_insert(nodegroup, worker_ngs)
# Drop the columns from cluster table
op.drop_column('cluster', 'node_count')
op.drop_column('cluster', 'node_addresses')
op.drop_column('cluster', 'master_count')
op.drop_column('cluster', 'master_addresses')