add systemd parameter to hostname

.yamllint

@@ -1,11 +1,33 @@
 ---
+# Based on ansible-lint config
 extends: default
 
 rules:
-  # 80 chars should be enough, but don't fail if a line is longer
-  line-length:
-    max: 80
-    level: warning
-    allow-non-breakable-words: true
-  comments:
-    min-spaces-from-content: 1
+  braces:
+    max-spaces-inside: 1
+    level: error
+  brackets:
+    max-spaces-inside: 1
+    level: error
+  colons:
+    max-spaces-after: -1
+    level: error
+  commas:
+    max-spaces-after: -1
+    level: error
+  comments: disable
+  comments-indentation: disable
+  document-start: disable
+  empty-lines:
+    max: 3
+    level: error
+  hyphens:
+    level: error
+  indentation: disable
+  key-duplicates: enable
+  line-length: disable
+  new-line-at-end-of-file: disable
+  new-lines:
+    type: unix
+  trailing-spaces: disable
+  truthy: disable

tasks/hostname.yml

@@ -2,4 +2,5 @@
 - name: Ensure hostname set
   hostname:
     name: "{{ inventory_hostname }}"
+    use: systemd
   become: yes