bootstrap-vz/bootstrapvz/common/tasks/development.py

from base import Task
from common import phases


class TriggerRollback(Task):
	phase = phases.cleaning

	description = 'Triggering a rollback by throwing an exception'

	@classmethod
	def run(cls, info):
		from common.exceptions import TaskError
		raise TaskError('Trigger rollback')
Various improvements and additions. I couldn't be bothered to untangle this, so here it goes: * Log colors depending on loglevel * Simplified Filelogger * Remove description=None from basetask * create_list creates task list from argument now * Task rollback feature: If a task fails, the tasklist calls rollback() on the completed tasks in reverse order * Added TaskException to common.exceptions as a base to extend from * Added TriggerRollback task to common.tasks for development purposes * An EBS volume for bootstrapping is now created and attached to the instance (including rollback actions) * EC2 Connect task now depends on host.GetInfo 2013-06-24 23:12:39 +02:00			`from base import Task`
Minor import stmt and dependency fix 2014-01-05 02:19:28 +01:00			`from common import phases`
Various improvements and additions. I couldn't be bothered to untangle this, so here it goes: * Log colors depending on loglevel * Simplified Filelogger * Remove description=None from basetask * create_list creates task list from argument now * Task rollback feature: If a task fails, the tasklist calls rollback() on the completed tasks in reverse order * Added TaskException to common.exceptions as a base to extend from * Added TriggerRollback task to common.tasks for development purposes * An EBS volume for bootstrapping is now created and attached to the instance (including rollback actions) * EC2 Connect task now depends on host.GetInfo 2013-06-24 23:12:39 +02:00

			`class TriggerRollback(Task):`
Way better rollback architecture through improvements in flexibility 2013-06-26 23:40:42 +02:00			`phase = phases.cleaning`
Various improvements and additions. I couldn't be bothered to untangle this, so here it goes: * Log colors depending on loglevel * Simplified Filelogger * Remove description=None from basetask * create_list creates task list from argument now * Task rollback feature: If a task fails, the tasklist calls rollback() on the completed tasks in reverse order * Added TaskException to common.exceptions as a base to extend from * Added TriggerRollback task to common.tasks for development purposes * An EBS volume for bootstrapping is now created and attached to the instance (including rollback actions) * EC2 Connect task now depends on host.GetInfo 2013-06-24 23:12:39 +02:00
			`description = 'Triggering a rollback by throwing an exception'`
PEP8 fixes 2013-06-26 20:14:37 +02:00
Don't instantiate tasks In practice they are just typed functions with attributes, having a reference to an object is just confusing. So: Task.run() is now a classmethod 2014-01-05 15:57:11 +01:00			`@classmethod`
			`def run(cls, info):`
Rename TaskException to TaskError, use it when checking installed packages 2013-06-26 23:50:11 +02:00			`from common.exceptions import TaskError`
			`raise TaskError('Trigger rollback')`