#12 made install-service.yml idempotent

tasks/install-service.yml

@@ -7,6 +7,8 @@
     owner: hedgedocs
     group: www-data
     mode: 0644
+    force: true
+  register: hedgedoc_archive_download
 
 - name: Extract archive to home diretory
   unarchive:
@@ -16,8 +18,4 @@
     group: www-data
     mode: 0740
     remote_src: true
-
-- name: Delete downloaded archive
-  file:
-    path: /home/hedgedocs/hedgedoc-source.tar.gz
-    state: absent
+  when: hedgedoc_archive_download.changed is true