[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>

roles/download/defaults/main.yml

@@ -624,13 +624,13 @@ etcd_image_repo: "{{ quay_image_repo }}/coreos/etcd"
 etcd_image_tag: "{{ etcd_version }}{%- if image_arch != 'amd64' -%}-{{ image_arch }}{%- endif -%}"
 flannel_image_repo: "{{ quay_image_repo }}/coreos/flannel"
 flannel_image_tag: "{{ flannel_version }}"
-calico_node_image_repo: "{{ docker_image_repo }}/calico/node"
+calico_node_image_repo: "{{ quay_image_repo }}/calico/node"
 calico_node_image_tag: "{{ calico_version }}"
-calico_cni_image_repo: "{{ docker_image_repo }}/calico/cni"
+calico_cni_image_repo: "{{ quay_image_repo }}/calico/cni"
 calico_cni_image_tag: "{{ calico_cni_version }}"
-calico_policy_image_repo: "{{ docker_image_repo }}/calico/kube-controllers"
+calico_policy_image_repo: "{{ quay_image_repo }}/calico/kube-controllers"
 calico_policy_image_tag: "{{ calico_policy_version }}"
-calico_typha_image_repo: "{{ docker_image_repo }}/calico/typha"
+calico_typha_image_repo: "{{ quay_image_repo }}/calico/typha"
 calico_typha_image_tag: "{{ calico_typha_version }}"
 pod_infra_image_repo: "{{ kube_image_repo }}/pause"
 pod_infra_image_tag: "{{ pod_infra_version }}"
@@ -655,11 +655,11 @@ contiv_etcd_init_image_repo: "{{ docker_image_repo }}/ferest/etcd-initer"
 contiv_etcd_init_image_tag: latest
 contiv_ovs_image_repo: "{{ docker_image_repo }}/contiv/ovs"
 contiv_ovs_image_tag: "latest"
-cilium_image_repo: "{{ docker_image_repo }}/cilium/cilium"
+cilium_image_repo: "{{ quay_image_repo }}/cilium/cilium"
 cilium_image_tag: "{{ cilium_version }}"
-cilium_init_image_repo: "{{ docker_image_repo }}/cilium/cilium-init"
+cilium_init_image_repo: "{{ quay_image_repo }}/cilium/cilium-init"
 cilium_init_image_tag: "2019-04-05"
-cilium_operator_image_repo: "{{ docker_image_repo }}/cilium/operator"
+cilium_operator_image_repo: "{{ quay_image_repo }}/cilium/operator"
 cilium_operator_image_tag: "{{ cilium_version }}"
 kube_ovn_container_image_repo: "{{ alauda_image_repo }}/alaudak8s/kube-ovn"
 kube_ovn_container_image_tag: "{{ kube_ovn_version }}"
@@ -676,7 +676,8 @@ haproxy_image_tag: 1.9
 # Coredns version should be supported by corefile-migration (or at least work with)
 # bundle with kubeadm; if not 'basic' upgrade can sometimes fail
 coredns_version: "1.6.5"
-coredns_image_repo: "{{ docker_image_repo }}/coredns/coredns"
+coredns_image_repo: "{{ kube_image_repo }}/coredns"
+
 coredns_image_tag: "{{ coredns_version }}"
 
 nodelocaldns_version: "1.15.12"
@@ -686,10 +687,8 @@ nodelocaldns_image_tag: "{{ nodelocaldns_version }}"
 dnsautoscaler_version: 1.7.1
 dnsautoscaler_image_repo: "{{ kube_image_repo }}/cluster-proportional-autoscaler-{{ image_arch }}"
 dnsautoscaler_image_tag: "{{ dnsautoscaler_version }}"
-test_image_repo: "{{ docker_image_repo }}/library/busybox"
+test_image_repo: "{{ kube_image_repo }}/busybox"
 test_image_tag: latest
-busybox_image_repo: "{{ docker_image_repo }}/library/busybox"
-busybox_image_tag: 1.31.1
 helm_version: "v3.1.2"
 helm_image_repo: "{{ docker_image_repo }}/lachlanevenson/k8s-helm"
 helm_image_tag: "{{ helm_version }}"
@@ -1095,15 +1094,6 @@ downloads:
     groups:
       - kube-master
 
-  busybox:
-    enabled: "{{ kube_network_plugin in ['kube-router'] }}"
-    container: true
-    repo: "{{ busybox_image_repo }}"
-    tag: "{{ busybox_image_tag }}"
-    sha256: "{{ busybox_digest_checksum|default(None) }}"
-    groups:
-      - k8s-cluster
-
   testbox:
     enabled: false
     container: true