Update tempest jobs for Ubuntu Noble (24.04)

Required by [1]. Patch added to [2].

Also setup global_venv for devstack, as newer pip don't
allow dependencies install on system by default. Also
ignore failures in systemctl kill in functional tests
as in noble it returns invalid argument for child
processes.

[1]https://lists.openstack.org/archives/list/openstack-discuss@lists.openstack.org/thread/JOMDY26TCW7OX3NXRGOYQCIDXNNJ4E25/
[2]https://etherpad.opendev.org/p/migrate-to-noble

Depends-On: https://review.opendev.org/c/openstack/tempest/+/932156
Change-Id: I7d3b9ebf02aed10a04c3220385a7234888ed32c1

neutron/tests/fullstack/resources/process.py

@@ -114,6 +114,9 @@ class ProcessFixture(fixtures.Fixture):
             return
 
         if kill_signal:
+            # systemd in ubuntu noble returns invalid-argument for some child
+            # processes
+            check_exit_code = False
             stop_cmd = [
                 'systemctl',
                 'kill',
@@ -124,10 +127,12 @@ class ProcessFixture(fixtures.Fixture):
             msg = (f'Process killed with signal {kill_signal}: '
                    f'{self.process_name}')
         else:
+            check_exit_code = True
             stop_cmd = ['systemctl', 'stop', '--no-block', self.unit_name]
             msg = f'Process stopped: {self.process_name}'
 
-        utils.execute(stop_cmd, run_as_root=True)
+        utils.execute(stop_cmd, run_as_root=True,
+                      check_exit_code=check_exit_code)
         common_utils.wait_until_true(self.process_is_not_running)
         LOG.debug(msg)
 

tools/configure_for_func_testing.sh

@@ -100,6 +100,10 @@ function _init {
     # Allow the gate to override values set by stackrc.
     DEST=${GATE_DEST:-$DEST}
     STACK_USER=${GATE_STACK_USER:-$STACK_USER}
+    sudo mkdir -p /opt/stack/data
+    sudo chown -R $STACK_USER /opt/stack/data
+    source $DEVSTACK_PATH/inc/python
+    setup_devstack_virtualenv
 
     GetDistro
     source $DEVSTACK_PATH/tools/fixup_stuff.sh

zuul.d/base.yaml

@@ -57,6 +57,8 @@
         DATABASE_PASSWORD: stackdb
         NEUTRON_DEPLOY_MOD_WSGI: true
       tox_envlist: dsvm-functional-gate
+      tox_environment:
+        PYTHONPATH: /opt/stack/data/venv/lib/python3.12/site-packages
       tox_constraints_file: '{{ ansible_user_dir }}/src/opendev.org/openstack/requirements/upper-constraints.txt'
       zuul_copy_output:
         # We need to copy archive with logs to have it in job artifacts also,