Set hostname if not set

deploy.yml

@@ -23,6 +23,30 @@
     - thunderbird
 
   tasks:
+    - name: check hostname
+      ansible.builtin.command:
+        argv:
+          - hostnamectl
+          - hostname
+          - --static
+      register: hostname_check
+      changed_when: false
+
+    - name: set hostname
+      ansible.builtin.command:
+        argv:
+          - hostnamectl
+          - hostname
+          - --static
+          - >-
+            {{
+              lookup(
+                'password',
+                '/dev/null chars=ascii_lowercase,digits length=4'
+              )
+            }}
+      when: hostname_check.stdout == ""
+
     - name: remove unneeded packages
       ansible.builtin.package:
         name: "{{ item }}"