[2.13] Backport CI fix (#7119)

* [2.14] fix ci (#7021)

* fix flake8 errors in Kubespray CI - tox-inventory-builder

* fix flake8 errors in Kubespray CI - tox-inventory-builder

* Invalidate CRI-O kubic repo's cache

Signed-off-by: Victor Morales <v.morales@samsung.com>

* add support to configure pkg install retries

and use in CI job tf-ovh_ubuntu18-calico (due to it failing often)

* Switch Calico and Cilium image repos to Quay.io

Co-authored-by: Victor Morales <v.morales@samsung.com>
Co-authored-by: Barry Melbourne <9964974+bmelbourne@users.noreply.github.com>

Conflicts:
	roles/download/defaults/main.yml

* up vagrant box to fedora/33-cloud-base in cri-o molecule tests

(cherry picked from commit 06ec5393d7)

* add Google proxy-mirror-cache for docker hub to CI tests

(cherry picked from commit d739a6bb2f)

* containerd docker hub registry mirror support

* containerd docker hub registry mirror support

* add docs

* fix typo

* fix yamllint

* fix indent in sample
and ansible-playbook param in testcases_run

* fix md

* mv common vars to tests/common/_docker_hub_registry_mirror.yml

* checkout vars to upgrade tests

(cherry picked from commit 4a8a52bad9)

* Exclude .git/ from shellcheck

If a branch name contains '.sh', current shellcheck checks the branch
file under .git/ and outputs error because the format is not shell
script one.
This makes shellcheck exclude files under .git/ to avoid this issue.

(cherry picked from commit e2467d87b6)

Co-authored-by: Hans Feldt <2808287+hafe@users.noreply.github.com>
Co-authored-by: Sergey <s.bondarev@southbridge.ru>
Co-authored-by: Kenichi Omichi <ken-oomichi@wx.jp.nec.com>

* Switch some image from dockerhub to k8s.gcr (also increase pkg retries) (#6955)

* Set packet_centos8-kube-ovn test to manual

Signed-off-by: Rick Haan <rickhaan94@gmail.com>

Co-authored-by: Etienne Champetier <champetier.etienne@gmail.com>
Co-authored-by: Hans Feldt <2808287+hafe@users.noreply.github.com>
Co-authored-by: Sergey <s.bondarev@southbridge.ru>
Co-authored-by: Kenichi Omichi <ken-oomichi@wx.jp.nec.com>
Co-authored-by: Florian Ruynat <16313165+floryut@users.noreply.github.com>

contrib/inventory_builder/tests/test_inventory.py

@@ -51,7 +51,7 @@ class TestInventory(unittest.TestCase):
         groups = ['group1', 'group2']
         self.inv.ensure_required_groups(groups)
         for group in groups:
-            self.assertTrue(group in self.inv.yaml_config['all']['children'])
+            self.assertIn(group, self.inv.yaml_config['all']['children'])
 
     def test_get_host_id(self):
         hostnames = ['node99', 'no99de01', '01node01', 'node1.domain',
@@ -209,8 +209,8 @@ class TestInventory(unittest.TestCase):
             ('doesnotbelong2', {'whateveropts=ilike'})])
         self.inv.yaml_config['all']['hosts'] = existing_hosts
         self.inv.purge_invalid_hosts(proper_hostnames)
-        self.assertTrue(
-            bad_host not in self.inv.yaml_config['all']['hosts'].keys())
+        self.assertNotIn(
+            bad_host, self.inv.yaml_config['all']['hosts'].keys())
 
     def test_add_host_to_group(self):
         group = 'etcd'
@@ -227,8 +227,8 @@ class TestInventory(unittest.TestCase):
         host = 'node1'
 
         self.inv.set_kube_master([host])
-        self.assertTrue(
-            host in self.inv.yaml_config['all']['children'][group]['hosts'])
+        self.assertIn(
+            host, self.inv.yaml_config['all']['children'][group]['hosts'])
 
     def test_set_all(self):
         hosts = OrderedDict([
@@ -246,8 +246,8 @@ class TestInventory(unittest.TestCase):
 
         self.inv.set_k8s_cluster()
         for host in expected_hosts:
-            self.assertTrue(
-                host in
+            self.assertIn(
+                host,
                 self.inv.yaml_config['all']['children'][group]['children'])
 
     def test_set_kube_node(self):
@@ -255,16 +255,16 @@ class TestInventory(unittest.TestCase):
         host = 'node1'
 
         self.inv.set_kube_node([host])
-        self.assertTrue(
-            host in self.inv.yaml_config['all']['children'][group]['hosts'])
+        self.assertIn(
+            host, self.inv.yaml_config['all']['children'][group]['hosts'])
 
     def test_set_etcd(self):
         group = 'etcd'
         host = 'node1'
 
         self.inv.set_etcd([host])
-        self.assertTrue(
-            host in self.inv.yaml_config['all']['children'][group]['hosts'])
+        self.assertIn(
+            host, self.inv.yaml_config['all']['children'][group]['hosts'])
 
     def test_scale_scenario_one(self):
         num_nodes = 50