def do_teardown(self):
        if self.mounted:
            self.unmnt_dev()
        if self.mapped:
            self.unmap_dev()
        if self.linked:
            self.unget_dev()
Sign a certificate request.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/virt/disk/mount/api.py/Mount.do_teardown--crossover with--dataset/ETHPy150Open EricssonResearch/calvin-base/calvin/utilities/certificate.py/sign_req