fix flake8 errors in Kubespray CI - tox-inventory-builder (#6910)

* 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, Cilium and MetalLB 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>

roles/container-engine/cri-o/tasks/crio_repo.yml

@@ -36,6 +36,7 @@
     baseurl: http://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_$releasever/
     gpgcheck: yes
     gpgkey: http://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_$releasever/repodata/repomd.xml.key
+    keepcache: false
   when: ansible_distribution in ["CentOS"]
 
 - name: Add CRI-O kubic yum repo

roles/download/defaults/main.yml

@@ -420,13 +420,13 @@ 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 }}"
@@ -451,11 +451,11 @@ 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: "{{ docker_image_repo }}/kubeovn/kube-ovn"
 kube_ovn_container_image_tag: "{{ kube_ovn_version }}"
@@ -581,8 +581,8 @@ image_pull_command_on_localhost: "{{ docker_bin_dir }}/docker pull"
 image_save_command_on_localhost: "{{ docker_bin_dir }}/docker save {{ image_reponame }} | gzip -{{ download_compress }} > {{ image_path_cached }}"
 image_info_command_on_localhost: "{{ docker_bin_dir }}/docker images"
 
-metallb_speaker_image_repo: "{{ docker_image_repo }}/metallb/speaker"
-metallb_controller_image_repo: "{{ docker_image_repo }}/metallb/controller"
+metallb_speaker_image_repo: "{{ quay_image_repo }}/metallb/speaker"
+metallb_controller_image_repo: "{{ quay_image_repo }}/metallb/controller"
 
 downloads:
   netcheck_server:

roles/kubernetes/preinstall/defaults/main.yml

@@ -53,3 +53,6 @@ minimal_node_memory_mb: 1024
 minimal_master_memory_mb: 1500
 
 yum_repo_dir: /etc/yum.repos.d
+
+# number of times package install task should be retried
+pkg_install_retries: 4

roles/kubernetes/preinstall/tasks/0070-system-packages.yml

@@ -77,7 +77,7 @@
     state: latest
   register: pkgs_task_result
   until: pkgs_task_result is succeeded
-  retries: 4
+  retries: "{{ pkg_install_retries }}"
   delay: "{{ retry_stagger | random + 3 }}"
   when: not (ansible_os_family in ["Flatcar Container Linux by Kinvolk", "ClearLinux"] or is_fedora_coreos)
   tags: