HetznerTerra/ansible/roles/rancher-image-prepull/tasks/main.yml

---
- name: Pre-pull Rancher images into containerd
  shell: |
    if /usr/local/bin/ctr -n k8s.io images ls -q | grep -Fx -- "{{ item }}" >/dev/null; then
      echo "already present"
      exit 0
    fi

    for attempt in 1 2 3; do
      if timeout 120s /usr/local/bin/ctr -n k8s.io images pull "{{ item }}"; then
        echo "pulled image"
        exit 0
      fi

      sleep 10
    done

    exit 1
  args:
    executable: /bin/bash
  register: rancher_image_pull
  loop: "{{ rancher_images_to_prepull }}"
  changed_when: "'pulled image' in rancher_image_pull.stdout"