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0068_2_0_0_drop_kuberesourceversion_and_.py
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0068_2_0_0_drop_kuberesourceversion_and_.py
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#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
"""Drop ``KubeResourceVersion`` and ``KubeWorkerId``
Revision ID: bef4f3d11e8b
Revises: e1a11ece99cc
Create Date: 2020-09-22 18:45:28.011654
"""
from __future__ import annotations
import sqlalchemy as sa
from alembic import op
from sqlalchemy import inspect
# revision identifiers, used by Alembic.
revision = 'bef4f3d11e8b'
down_revision = 'e1a11ece99cc'
branch_labels = None
depends_on = None
airflow_version = '2.0.0'
WORKER_UUID_TABLE = "kube_worker_uuid"
WORKER_RESOURCEVERSION_TABLE = "kube_resource_version"
def upgrade():
"""Apply Drop ``KubeResourceVersion`` and ``KubeWorkerId``entifier tables"""
conn = op.get_bind()
inspector = inspect(conn)
tables = inspector.get_table_names()
if WORKER_UUID_TABLE in tables:
op.drop_table(WORKER_UUID_TABLE)
if WORKER_RESOURCEVERSION_TABLE in tables:
op.drop_table(WORKER_RESOURCEVERSION_TABLE)
def downgrade():
"""Unapply Drop ``KubeResourceVersion`` and ``KubeWorkerId``entifier tables"""
conn = op.get_bind()
inspector = inspect(conn)
tables = inspector.get_table_names()
if WORKER_UUID_TABLE not in tables:
_add_worker_uuid_table()
if WORKER_RESOURCEVERSION_TABLE not in tables:
_add_resource_table()
def _add_worker_uuid_table():
columns_and_constraints = [
sa.Column("one_row_id", sa.Boolean, server_default=sa.true(), primary_key=True),
sa.Column("worker_uuid", sa.String(255)),
]
conn = op.get_bind()
# alembic creates an invalid SQL for mssql and mysql dialects
if conn.dialect.name in {"mysql"}:
columns_and_constraints.append(sa.CheckConstraint("one_row_id<>0", name="kube_worker_one_row_id"))
elif conn.dialect.name not in {"mssql"}:
columns_and_constraints.append(sa.CheckConstraint("one_row_id", name="kube_worker_one_row_id"))
table = op.create_table(WORKER_UUID_TABLE, *columns_and_constraints)
op.bulk_insert(table, [{"worker_uuid": ""}])
def _add_resource_table():
columns_and_constraints = [
sa.Column("one_row_id", sa.Boolean, server_default=sa.true(), primary_key=True),
sa.Column("resource_version", sa.String(255)),
]
conn = op.get_bind()
# alembic creates an invalid SQL for mssql and mysql dialects
if conn.dialect.name in {"mysql"}:
columns_and_constraints.append(
sa.CheckConstraint("one_row_id<>0", name="kube_resource_version_one_row_id")
)
elif conn.dialect.name not in {"mssql"}:
columns_and_constraints.append(
sa.CheckConstraint("one_row_id", name="kube_resource_version_one_row_id")
)
table = op.create_table(WORKER_RESOURCEVERSION_TABLE, *columns_and_constraints)
op.bulk_insert(table, [{"resource_version": ""}])