add hostname role

roles/hostname/README.md

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+Role Name
+=========
+
+Set the node's hostname.
+
+Requirements
+------------
+
+None
+
+Role Variables
+--------------
+
+`hostname`
+
+Dependencies
+------------
+
+Example Playbook
+----------------
+
+Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
+
+```yaml
+
+- hosts: servers
+  roles:
+     - { role: username.rolename, x: 42 }
+```
+
+License
+-------
+
+BSD
+
+Author Information
+------------------
+
+corvus-migratorius@proton.me

roles/hostname/defaults/main.yml

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+---
+# defaults file for roles/hostname

roles/hostname/handlers/main.yml

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+---
+# handlers file for roles/hostname

roles/hostname/meta/main.yml

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+galaxy_info:
+  author: "Alexander Gorelyhsev"
+  description: "Set the hostname of the node"
+  company: "GenLab LLC"
+  license: "BSD"
+  min_ansible_version: "2.1"
+
+  platforms:
+    - name: "Ubuntu"
+      versions: ["focal", "jammy", "noble"]
+
+  galaxy_tags: []
+
+dependencies: []

roles/hostname/tasks/main.yml

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+---
+# tasks file for roles/hostname
+- name: "Set the hostname to '{{ hostname }}'"
+  tags: [ hostname ]
+  ansible.builtin.hostname:
+    name: "{{ hostname }}"

roles/hostname/vars/main.yml

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+---
+# vars file for roles/hostname