Source code for labgrid.strategy.dockerstrategy

import enum

import attr

from ..factory import target_factory
from .common import Strategy, StrategyError
from ..driver.dockerdriver import DockerDriver
from ..step import step

[docs]class Status(enum.Enum): """The possible states of a docker container""" unknown = 0 gone = 1 accessible = 2
[docs]@target_factory.reg_driver @attr.s(eq=False) class DockerStrategy(Strategy): """ DockerStrategy enables the user to directly transition to a state where a fresh docker container has been created and is ready for access (e.g. shell access via SSH if the docker image runs an SSH daemon). """ bindings = { "docker_driver": DockerDriver, } status = attr.ib(default=Status.unknown)
[docs] def __attrs_post_init__(self): super().__attrs_post_init__()
[docs] @step(args=['status']) def transition(self, status): if not isinstance(status, Status): status = Status[status] if status == self.status: return # nothing to do elif status == Status.accessible: self.docker_driver.on() elif status == Status.gone: else: raise StrategyError( "no transition found from {} to {}". format(self.status, status) ) self.status = status