first version

kubespray/project/roles/container-engine/docker/handlers/main.yml

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+---
+- name: Docker | reload systemd
+  systemd:
+    name: docker
+    daemon_reload: true
+    masked: no
+  listen: Restart docker
+
+- name: Docker | reload docker.socket
+  service:
+    name: docker.socket
+    state: restarted
+  when: ansible_os_family in ['Flatcar', 'Flatcar Container Linux by Kinvolk'] or is_fedora_coreos
+  listen: Restart docker
+
+
+- name: Docker | reload docker
+  service:
+    name: docker
+    state: restarted
+  listen: Restart docker
+
+
+- name: Docker | wait for docker
+  command: "{{ docker_bin_dir }}/docker images"
+  register: docker_ready
+  retries: 20
+  delay: 1
+  until: docker_ready.rc == 0
+  listen: Restart docker