Only wait for start and stop when service state has changed

README.md

@@ -41,7 +41,7 @@ Stops the `aem-author` instance and waits for the shutdown to complete:
 	- hosts: aem-author
 	  roles:
 	    - { role: aem-service,
-	        state: stopped,
+	        aem_service_state: stopped,
 	        aem_service_name: aem-author,
 	        aem_service_port: 4502 }
 

tasks/start_aem.yml

@@ -2,6 +2,7 @@
   service:
     name: "{{ aem_service_name }}"
     state: started
+  register: aem_service_start_result
 
 - name: "Wait for AEM startup. [{{ inventory_hostname }}]"
   uri:
@@ -10,4 +11,5 @@
   register: result
   until: result.content.find("QUICKSTART_HOMEPAGE") != -1
   retries: "{{ aem_service_timeout // 10 }}"
-  delay: 10
+  delay: 10
+  when: aem_service_start_result.changed

tasks/stop_aem.yml

@@ -2,10 +2,13 @@
   service:
     name: "{{ aem_service_name }}"
     state: stopped
+  register: aem_service_stop_result
 
 - name: Wait for AEM shutdown.
   wait_for:
     port: "{{ aem_service_port }}"
     state: stopped
-    delay: 10
-    timeout: "{{ aem_service_timeout }}"
+    delay: 5
+    timeout: "{{ aem_service_timeout }}"
+  register: aem_service_stop_result
+  when: aem_service_stop_result.changed