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k3s/ansible/common/create-ansible-user.yml

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+# command: ansible-playbook -i config/<target manifest>.ini common/create-ansible-user.yml --ask-become-pass
+# Note: this playbook requires an interactive mode or passed secret for privilege escalation
+---
+- name: Create ansible user and configure passwordless sudo
+  hosts: all
+  become: true
+  become_method: sudo
+  vars:
+    ansible_user: khwezi
+  tasks:
+    - name: Ensure 'ansible' user exists
+      ansible.builtin.user:
+        name: ansible
+        groups: sudo
+        append: yes
+        shell: /bin/bash
+        state: present
+    - name: Check if passwordless sudo is already configured for 'ansible'
+      ansible.builtin.shell: |
+        grep -Fxq "ansible ALL=(ALL) NOPASSWD: ALL" /etc/sudoers.d/ansible
+      register: sudoers_check
+      ignore_errors: true
+      changed_when: false
+    - name: Allow 'ansible' user passwordless sudo
+      ansible.builtin.copy:
+        dest: /etc/sudoers.d/ansible
+        content: "ansible ALL=(ALL) NOPASSWD: ALL\n"
+        owner: root
+        group: root
+        mode: '0440'
+      when: sudoers_check.rc != 0
+    - name: Ensure /home/ansible/.ssh directory exists
+      ansible.builtin.file:
+        path: /home/ansible/.ssh
+        state: directory
+        owner: ansible
+        group: ansible
+        mode: '0700'
+    - name: Copy id_ed25519 private key to ansible user
+      ansible.builtin.copy:
+        src: ~/.ssh/id_ed25519
+        dest: /home/ansible/.ssh/id_ed25519
+        owner: ansible
+        group: ansible
+        mode: '0600'
+    - name: Copy id_ed25519 public key to ansible user
+      ansible.builtin.copy:
+        src: ~/.ssh/id_ed25519.pub
+        dest: /home/ansible/.ssh/id_ed25519.pub
+        owner: ansible
+        group: ansible
+        mode: '0644'
+    - name: Ensure authorized_keys exists
+      ansible.builtin.file:
+        path: /home/ansible/.ssh/authorized_keys
+        state: touch
+        owner: ansible
+        group: ansible
+        mode: '0600'
+    - name: Read public key content
+      ansible.builtin.slurp:
+        src: /home/ansible/.ssh/id_ed25519.pub
+      register: pubkey_content
+    - name: Ensure public key is present in authorized_keys
+      ansible.builtin.lineinfile:
+        path: /home/ansible/.ssh/authorized_keys
+        line: "{{ pubkey_content['content'] | b64decode | trim }}"
+        owner: ansible
+        group: ansible
+        mode: '0600'
+        create: yes
+        state: present
+
+    - name: Allow 'ansible' user to write to /etc/systemd/resolved.conf
+      ansible.builtin.file:
+        path: /etc/systemd/resolved.conf
+        owner: ansible
+        group: ansible
+        mode: '0664'
+        state: file
+      become: true