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tests/avocado: start PhoneServer upfront 

Race conditions can happen with the current code, because the port that
was available might not be anymore by the time the server is started.

By setting the port to 0, PhoneServer it will use the OS default
behavior to get a free port, then we save this information so we can
later configure the guest.

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Beraldo Leal <bleal@redhat.com>
Message-Id: <20220311171127.2189534-1-bleal@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Beraldo Leal 2022-03-11 14:11:27 -03:00 committed by Thomas Huth
parent c587bddb53
commit 5e2d19b3cd
1 changed files with 7 additions and 6 deletions
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13
tests/avocado/avocado_qemu/__init__.py
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@ -18,7 +18,7 @@
import uuid
import avocado
from avocado.utils import cloudinit, datadrainer, network, process, ssh, vmimage
from avocado.utils import cloudinit, datadrainer, process, ssh, vmimage
from avocado.utils.path import find_command
#: The QEMU build root directory. It may also be the source directory
@ -602,9 +602,6 @@ def prepare_cloudinit(self, ssh_pubkey=None):
self.log.info('Preparing cloudinit image')
try:
cloudinit_iso = os.path.join(self.workdir, 'cloudinit.iso')
self.phone_home_port = network.find_free_port()
if not self.phone_home_port:
self.cancel('Failed to get a free port')
pubkey_content = None
if ssh_pubkey:
with open(ssh_pubkey) as pubkey:
@ -614,7 +611,7 @@ def prepare_cloudinit(self, ssh_pubkey=None):
password=self.password,
# QEMU's hard coded usermode router address
phone_home_host='10.0.2.2',
phone_home_port=self.phone_home_port,
phone_home_port=self.phone_server.server_port,
authorized_key=pubkey_content)
except Exception:
self.cancel('Failed to prepare the cloudinit image')
@ -625,6 +622,8 @@ def set_up_boot(self):
self.vm.add_args('-drive', 'file=%s' % path)
def set_up_cloudinit(self, ssh_pubkey=None):
self.phone_server = cloudinit.PhoneHomeServer(('0.0.0.0', 0),
self.name)
cloudinit_iso = self.prepare_cloudinit(ssh_pubkey)
self.vm.add_args('-drive', 'file=%s,format=raw' % cloudinit_iso)
@ -635,7 +634,9 @@ def launch_and_wait(self, set_up_ssh_connection=True):
logger=self.log.getChild('console'))
console_drainer.start()
self.log.info('VM launched, waiting for boot confirmation from guest')
cloudinit.wait_for_phone_home(('0.0.0.0', self.phone_home_port), self.name)
while not self.phone_server.instance_phoned_back:
self.phone_server.handle_request()
if set_up_ssh_connection:
self.log.info('Setting up the SSH connection')
self.ssh_connect(self.username, self.ssh_key)