Add support for labels

defaults/main.yml

@@ -34,3 +34,10 @@ docker_log_to_journal: True
 docker_daemon_debug: False
 docker_prometheus_metrics: True
 docker_prometheus_host: 127.0.0.1
+
+# merge, replace
+docker_label_state_mode: merge
+docker_node_labels: []
+#docker_node_labels:
+#  - { key: 'key_name', value: 'label_value' }
+

tasks/swarm_node.yml

@@ -41,3 +41,17 @@
   when: docker_swarm_node | bool
   delegate_to: '{{ docker_swarm_manager_main_node_hostname }}'
   tags: [ 'docker', 'docker_swarm', 'docker_swarm_worker_nodes', 'docker_swarm_worker_nodes_availability' ]
+
+- name: Manage labels
+  block:
+  - name: Manage the swarm nodes labels
+    docker_node:
+      hostname: '{{ ansible_hostname }}'
+      labels:
+        '{{ item.key }}': '{{ item.value }}'
+      labels_state: '{{ docker_label_state_mode }}'
+    with_items: '{{ docker_node_labels }}'
+
+  when: docker_swarm_node | bool
+  delegate_to: '{{ docker_swarm_manager_main_node_hostname }}'
+  tags: [ 'docker', 'docker_swarm', 'docker_swarm_worker_nodes', 'docker_nodes_labels' ]