Refactor download role (#5697)

* download file

* download containers

* fix push image to nodes

* pull if none image on host

* fix

* improve docker image tag checks.
do not pull already cached images

* rebase fix merge conflict

* add support download_run_once when upgrade and scale cluster
add some test with download_run_once

* set default values to temp flag for every download cycle

* add save,load abilty for containerd and crio when download_run_once=true

* return redefine image save/load command to  set_docker_image_facts.yml

* move set command to set_container_facts

* ctr in containerd_bin_dir

* fix order of ctr image export arguments

* temporary disable download_run_once for containerd and crio
due https://github.com/containerd/containerd/issues/4075

* remove unused files

* fix strict yaml linter warning and errors

* refactor logical conditions to pull and cache container images

* remove comment due lint check

* document role

* remove image_load_on_localhost, because cached images are always loaded to docker on remote sites

* remove XXX from debug output

roles/kubespray-defaults/defaults/main.yaml

@@ -201,6 +201,9 @@ kube_profiling: false
 # Container for runtime
 container_manager: docker
 
+# Container on localhost (download images when download_localhost is true)
+container_manager_on_localhost: "{{ container_manager }}"
+
 # CRI socket path
 cri_socket: >-
   {%- if container_manager == 'crio' -%}