When using containerd container runtime, kubespray will always download container images even if present on system

[timgriffiths]

So I think the bug relates to the nerdctl command string you are trying to build here:

https://github.com/kubernetes-sigs/kubespray/blob/master/roles/download/defaults/main.yml#L51

I don't think your escaping the curly brackets correctly as you string looks like this when ansible tries to execute this line
"cmd": "/usr/local/bin/nerdctl -n k8s.io images --format '{{ '{{' }} .Repository {{ '}}' }}:{{ '{{' }} .Tag {{ '}}' }}' 2>/dev/null | grep -v ^:$ | tr '\n' ','",

I believe the code fix should be

nerdctl_image_info_command: "{{ bin_dir }}/nerdctl -n k8s.io images --format '{% raw %}{{ .Repository }}:{{ .Tag }}{% endraw %}' 2>/dev/null | grep -v ^:$ | tr '\n' ','"

Environment:

• Cloud provider or hardware configuration:
  On Premis

• OS (printf "$(uname -srm)\n$(cat /etc/os-release)\n"):
  Centos 7

• Version of Ansible (ansible --version):

ansible 2.8.5

• Version of Python (python --version):

python version = 2.7.5
Kubespray version (commit) (git rev-parse --short HEAD):
master

Network plugin used:
calico

[liupeng0518]

open a pr #8894