Merge "Unskip Device detach compute tests on Focal"
diff --git a/playbooks/devstack-tempest.yaml b/playbooks/devstack-tempest.yaml
index 7ee7411..4539bf9 100644
--- a/playbooks/devstack-tempest.yaml
+++ b/playbooks/devstack-tempest.yaml
@@ -30,9 +30,9 @@
         name: tempest-cleanup
       vars:
         init_saved_state: true
-      when:
-        - run_tempest_dry_cleanup is defined
-        - run_tempest_cleanup is defined
+      when: (run_tempest_dry_cleanup is defined and run_tempest_dry_cleanup | bool) or
+            (run_tempest_cleanup is defined and run_tempest_cleanup | bool) or
+            (run_tempest_fail_if_leaked_resources is defined and run_tempest_fail_if_leaked_resources | bool)
 
     - name: Run Tempest
       include_role:
@@ -43,10 +43,9 @@
         name: tempest-cleanup
       vars:
         dry_run: true
-      when:
-        - run_tempest_dry_cleanup is defined
+      when: run_tempest_dry_cleanup is defined and run_tempest_dry_cleanup | bool
 
     - name: Run tempest cleanup
       include_role:
         name: tempest-cleanup
-      when: run_tempest_cleanup is defined
+      when: run_tempest_cleanup is defined and run_tempest_cleanup | bool
diff --git a/releasenotes/notes/network_feature_enabled_available_features-35f9ac5f253e2ca3.yaml b/releasenotes/notes/network_feature_enabled_available_features-35f9ac5f253e2ca3.yaml
new file mode 100644
index 0000000..1f2d6b9
--- /dev/null
+++ b/releasenotes/notes/network_feature_enabled_available_features-35f9ac5f253e2ca3.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    New config option to ``network-feature-enabled``: ``available_features``.
+    This is a list which can contain features that are not discoverable
+    through Neutron API, or it can be the special entry ``all``.
diff --git a/roles/tempest-cleanup/README.rst b/roles/tempest-cleanup/README.rst
index 70719ca..d1fad90 100644
--- a/roles/tempest-cleanup/README.rst
+++ b/roles/tempest-cleanup/README.rst
@@ -31,3 +31,31 @@
    When true, tempest cleanup creates a report (./dry_run.json) of the
    resources that would be cleaned up if the role was ran with dry_run option
    set to false.
+
+.. zuul:rolevar:: run_tempest_fail_if_leaked_resources
+   :default: false
+
+   When true, the role will fail if any leaked resources are detected.
+   The detection is done via dry_run.json file which if contains any resources,
+   some must have been leaked. This can be also used to verify that tempest
+   cleanup was successful.
+
+
+Role usage
+----------
+
+The role can be also used for verification that tempest tests don't leak any
+resources or to test that 'tempest cleanup' command deleted all leaked
+resources as expected.
+Either way the role needs to be run first with init_saved_state variable set
+to true prior any tempest tests got executed.
+Then, after tempest tests got executed this role needs to be run again with
+role variables set according to the desired outcome:
+
+1. to verify that tempest tests don't leak any resources
+   run_tempest_dry_cleanup and run_tempest_fail_if_leaked_resources have to
+   be set to true.
+
+2. to check that 'tempest cleanup' command deleted all the leaked resources
+   run_tempest_cleanup and run_tempest_fail_if_leaked_resources have to be set
+   to true.
diff --git a/roles/tempest-cleanup/defaults/main.yaml b/roles/tempest-cleanup/defaults/main.yaml
index fc1948a..ce78bdb 100644
--- a/roles/tempest-cleanup/defaults/main.yaml
+++ b/roles/tempest-cleanup/defaults/main.yaml
@@ -1,3 +1,4 @@
 devstack_base_dir: /opt/stack
 init_saved_state: false
 dry_run: false
+run_tempest_fail_if_leaked_resources: false
diff --git a/roles/tempest-cleanup/tasks/dry_run.yaml b/roles/tempest-cleanup/tasks/dry_run.yaml
new file mode 100644
index 0000000..46749ab
--- /dev/null
+++ b/roles/tempest-cleanup/tasks/dry_run.yaml
@@ -0,0 +1,7 @@
+---
+- name: Run tempest cleanup dry-run
+  become: yes
+  become_user: tempest
+  command: tox -evenv-tempest -- tempest cleanup --dry-run --debug
+  args:
+    chdir: "{{ devstack_base_dir }}/tempest"
diff --git a/roles/tempest-cleanup/tasks/dry_run_checker.py b/roles/tempest-cleanup/tasks/dry_run_checker.py
new file mode 100644
index 0000000..9cd9a85
--- /dev/null
+++ b/roles/tempest-cleanup/tasks/dry_run_checker.py
@@ -0,0 +1,71 @@
+# Copyright 2020 Red Hat, Inc
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""
+Utility for content checking of a given dry_run.json file.
+"""
+
+import argparse
+import json
+import sys
+
+
+def get_parser():
+    parser = argparse.ArgumentParser(__doc__)
+    parser.add_argument('--is-empty', action="store_true", dest='is_empty',
+                        default=False,
+                        help="""Are values of a given dry_run.json empty?""")
+    parser.add_argument('--file', dest='file', default=None, metavar='PATH',
+                        help="A path to a dry_run.json file.")
+    return parser
+
+
+def parse_arguments():
+    parser = get_parser()
+    args = parser.parse_args()
+    if not args.file:
+        sys.stderr.write('Path to a dry_run.json must be specified.\n')
+        sys.exit(1)
+    return args
+
+
+def load_json(path):
+    """Load json content from file addressed by path."""
+    try:
+        with open(path, 'rb') as json_file:
+            json_data = json.load(json_file)
+    except Exception as ex:
+        sys.exit(ex)
+    return json_data
+
+
+def are_values_empty(dry_run_content):
+    """Return true if values of dry_run.json are empty."""
+    for value in dry_run_content.values():
+        if value:
+            return False
+    return True
+
+
+def main():
+    args = parse_arguments()
+    content = load_json(args.file)
+    if args.is_empty:
+        if not are_values_empty(content):
+            sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/roles/tempest-cleanup/tasks/main.yaml b/roles/tempest-cleanup/tasks/main.yaml
index 5444afc..c1d63f0 100644
--- a/roles/tempest-cleanup/tasks/main.yaml
+++ b/roles/tempest-cleanup/tasks/main.yaml
@@ -12,20 +12,35 @@
 
 - when: dry_run
   block:
-    - name: Run tempest cleanup dry-run
-      become: yes
-      become_user: tempest
-      command: tox -evenv-tempest -- tempest cleanup --dry-run --debug
-      args:
-        chdir: "{{ devstack_base_dir }}/tempest"
+    - import_tasks: dry_run.yaml
 
     - name: Cat dry_run.json
       command: cat "{{ devstack_base_dir }}/tempest/dry_run.json"
 
-- name: Run tempest cleanup
-  become: yes
-  become_user: tempest
-  command: tox -evenv-tempest -- tempest cleanup --debug
-  args:
-    chdir: "{{ devstack_base_dir }}/tempest"
-  when: not dry_run and not init_saved_state
+- when:
+    - not dry_run
+    - not init_saved_state
+  block:
+    - name: Run tempest cleanup
+      become: yes
+      become_user: tempest
+      command: tox -evenv-tempest -- tempest cleanup --debug
+      args:
+        chdir: "{{ devstack_base_dir }}/tempest"
+
+- when:
+    - run_tempest_fail_if_leaked_resources
+    - not init_saved_state
+  block:
+    # let's run dry run again, if haven't already, to check no leftover
+    # resources were left behind after the cleanup in the previous task
+    - import_tasks: dry_run.yaml
+      when: not dry_run
+
+    - name: Fail if any resources are leaked
+      become: yes
+      become_user: tempest
+      shell: |
+        python3 roles/tempest-cleanup/tasks/dry_run_checker.py --file {{ devstack_base_dir }}/tempest/dry_run.json --is-empty
+      args:
+        chdir: "{{ devstack_base_dir }}/tempest"
diff --git a/tempest/common/utils/__init__.py b/tempest/common/utils/__init__.py
index 167bf5b..914acf7 100644
--- a/tempest/common/utils/__init__.py
+++ b/tempest/common/utils/__init__.py
@@ -128,3 +128,18 @@
     if extension_name in config_dict[service]:
         return True
     return False
+
+
+def is_network_feature_enabled(feature_name):
+    """A function that will check the list of available network features
+
+    """
+    list_of_features = CONF.network_feature_enabled.available_features
+
+    if not list_of_features:
+        return False
+    if list_of_features[0] == 'all':
+        return True
+    if feature_name in list_of_features:
+        return True
+    return False
diff --git a/tempest/config.py b/tempest/config.py
index 2f2c2e9..28a70c2 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -790,6 +790,13 @@
                      "entry all which indicates every extension is enabled. "
                      "Empty list indicates all extensions are disabled. "
                      "To get the list of extensions run: 'neutron ext-list'"),
+    cfg.ListOpt('available_features',
+                default=['all'],
+                help="A list of available network features with a special "
+                     "entry all that indicates every feature is available. "
+                     "Empty list indicates all features are disabled."
+                     "This list can contain features that are not "
+                     "discoverable through API."),
     cfg.BoolOpt('ipv6_subnet_attributes',
                 default=False,
                 help="Allow the execution of IPv6 subnet tests that use "