def deploy_workflow_rollback(self):
"""Method to start rollback action.
When rollback completes, it moves to exit state.
"""
log.info("deploy workflow ==> enter [%s] state",
self.current_context['state'])
# rollback to the beginning state
utils.run_command_silient("git reset --hard deploy_start")
log.info("wait for rollback completion...")
time.sleep(self.opts['wait'] * 5)
self.current_context['state'] = STATE_EXIT
self.current_context['prestate'] = STATE_ROLLBACK
def run(self):
"""This method is the main loop for deployment
state machine
"""
log.info(">== deployment workflow starts.")
deploy_state = self.current_context['state']
log.debug("deploy_state: %s", deploy_state)
try:
while deploy_state != STATE_EXIT:
action = DeployWorkflow.deploy_state_machine[deploy_state]
action(self)
deploy_state = self.current_context['state']
# go through "exit" state to complete the state machine
DeployWorkflow.deploy_state_machine[deploy_state](self)
except Exception:
# rollback to the beginning state
utils.run_command_silient("git reset --hard deploy_start")
finally:
utils.run_command_silient("git tag -d deploy_start")
utils.run_command_silient("git checkout master")
log.info("<== deployment workflow completed.")