drydock/alembic/env.py
Scott Hussey d12ef71f9f Refactor orchestrator
Refactor orchestrator to break large
monolithic functions into small functions
per action.

- Update orchestrator to match new statemgmt API
- Pull most code out of __init__.py files
- Create action classes for Orchestrator actions
- Create action classes for Driver actions
- Orchestrator consumes tasks from database queue
- Additional encapsulation of task functionality into Task class
- Create shared integration test fixtures
- Fix Sphinx entrypoint so package install works
- Disable bootdata API until BootAction implementation
- Bring codebase into PEP8 compliance
- Update documentation reflect code changes
- Mark SQL #nosec for bandit

Change-Id: Id9a7bdedcdd5bbf07aeabbdb52db0f0b71f1e4a4
2017-10-26 15:00:39 -05:00

76 lines
2.0 KiB
Python

"""Alembic database creation and upgrades."""
import os
from alembic import context
from sqlalchemy import engine_from_config, pool
from logging.config import fileConfig
# this is the Alembic Config object, which provides
# access to the values within the .ini file in use.
config = context.config
# Interpret the config file for Python logging.
# This line sets up loggers basically.
fileConfig(config.config_file_name)
# add your model's MetaData object here
# for 'autogenerate' support
# from myapp import mymodel
# target_metadata = mymodel.Base.metadata
target_metadata = None
# other values from the config, defined by the needs of env.py,
# can be acquired:
# my_important_option = config.get_main_option("my_important_option")
# ... etc.
def run_migrations_offline():
"""Run migrations in 'offline' mode.
This configures the context with just a URL
and not an Engine, though an Engine is acceptable
here as well. By skipping the Engine creation
we don't even need a DBAPI to be available.
Calls to context.execute() here emit the given string to the
script output.
"""
return # We don't support offline
url = config.get_main_option("sqlalchemy.url")
context.configure(
url=url, target_metadata=target_metadata, literal_binds=True)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
db_url = os.environ['DRYDOCK_DB_URL']
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.',
poolclass=pool.NullPool,
url=db_url)
with connectable.connect() as connection:
context.configure(
connection=connection, target_metadata=target_metadata)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()