base.py 文件源码

def pre_upgrade(self):
        utilities = os.path.join(
            self._root, 'scripts', 'upgrade-utilities', 'playbooks')
        playbooks = os.path.join(self._root, 'playbooks')

        # According to the upgrade document, there are steps that must be
        # executed before trying to upgrade OpenStack to new version. This
        # this hook returns a chain of this steps so operator doesn't need
        # to run them manually.
        #
        # http://docs.openstack.org/developer/openstack-ansible/upgrade-guide/manual-upgrade.html
        return celery.chain(*[

            # Bootstrapping Ansible again ensures that all OpenStack Ansible
            # role dependencies are in place before running playbooks of new
            # release.
            tasks.execute.si(
                os.path.join(self._root, 'scripts', 'bootstrap-ansible.sh'),
                cwd=self._root,
            ),

            # Some configuration may changed, and old facts should be purged.
            self._run_playbook.si(
                os.path.join(utilities, 'ansible_fact_cleanup.yml'),
            ),

            # The user configuration files in /etc/openstack_deploy/ and
            # the environment layout in /etc/openstack_deploy/env.d may
            # have new name values added in new release.
            self._run_playbook.si(
                os.path.join(utilities, 'deploy-config-changes.yml'),
            ),

            # Populate user_secrets.yml with new secrets added in new
            # release.
            self._run_playbook.si(
                os.path.join(utilities, 'user-secrets-adjustment.yml'),
            ),

            # The presence of pip.conf file can cause build failures when
            # upgrading. So better remove it everywhere.
            self._run_playbook.si(
                os.path.join(utilities, 'pip-conf-removal.yml'),
            ),

            # Update the configuration of the repo servers and build a new
            # packages required by new release.
            self._run_playbook.si(
                os.path.join(playbooks, 'repo-install.yml'),
                cwd=playbooks,
            ),
        ])