kayobe/ansible/kayobe-ansible-user.yml

---
# NOTE(mgoddard): The bootstrap user may be used to create the kayobe user
# account and configure passwordless sudo. We can't assume that the bootstrap
# user account will exist after the initial bootstrapping, or that the
# current operator's key is authorised for the bootstrap user. We therefore
# attempt to access the kayobe user account via SSH, and only perform the
# bootstrap process if the account is inaccessible.

- name: Determine whether user bootstrapping is required
  hosts: seed-hypervisor:seed:overcloud:infra-vms
  gather_facts: false
  tags:
    - kayobe-ansible-user
  tasks:
    - name: Check whether the host is accessible via SSH
      local_action:
        module: command ssh -o BatchMode=yes -p {{ ssh_port }} {{ ssh_user }}@{{ ssh_host }} hostname
      failed_when: false
      changed_when: false
      check_mode: no
      register: ssh_result
      vars:
        ssh_user: "{{ ansible_user }}"
        ssh_host: "{{ ansible_host | default(inventory_hostname) }}"
        ssh_port: "{{ ansible_ssh_port | default('22') }}"

    - name: Group hosts requiring kayobe user bootstrapping
      group_by:
        key: kayobe_user_bootstrap_required_{{ ssh_result.rc != 0 }}
      changed_when: false

    - name: Display a message when bootstrapping is required
      debug:
        msg: >
          Cannot access host via SSH using Kayobe Ansible user account -
          attempting bootstrap          
      when: ssh_result.rc != 0

- name: Ensure python is installed
  hosts: kayobe_user_bootstrap_required_True
  gather_facts: no
  vars:
    ansible_user: "{{ bootstrap_user }}"
    dnf_options:
      - "-y"
      - "{% if 'proxy' in dnf_config %}--setopt=proxy={{ dnf_config['proxy'] }}{% endif %}"
  tags:
    - ensure-python
  tasks:
    - name: Check if python is installed
      raw: test -e /usr/bin/python3
      changed_when: false
      failed_when: false
      register: check_python

    # TODO(priteau): Support apt proxy
    - name: Ensure python is installed
      raw: "test -e /usr/bin/apt && (sudo apt -y update && sudo apt install -y python3-minimal) || (sudo dnf {{ dnf_options | select | join(' ') }} install python3)"
      when: check_python.rc != 0

- name: Ensure the Kayobe Ansible user account exists
  hosts: kayobe_user_bootstrap_required_True
  gather_facts: false
  tags:
    - kayobe-ansible-user
  vars:
    ansible_user: "{{ bootstrap_user }}"
    # We can't assume that a virtualenv exists at this point, so use the system
    # python interpreter.
    ansible_python_interpreter: /usr/bin/python3
  roles:
    - role: singleplatform-eng.users
      groups_to_create: "{{ [{'name': 'docker'}] if 'docker' in group_names else [] }}"
      users:
        - username: "{{ kayobe_ansible_user }}"
          name: Kayobe deployment user
          groups: "{{ ['docker'] if 'docker' in group_names else [] }}"
          append: True
          ssh_key:
            - "{{ lookup('file', ssh_public_key_path) }}"
      become: True

  post_tasks:
    - name: Ensure the Kayobe Ansible user has passwordless sudo
      copy:
        content: "{{ kayobe_ansible_user }} ALL=(ALL) NOPASSWD: ALL"
        dest: "/etc/sudoers.d/kayobe-ansible-user"
        mode: 0440
      become: True

- name: Verify that the Kayobe Ansible user account is accessible
  hosts: seed-hypervisor:seed:overcloud:infra-vms
  gather_facts: false
  tags:
    - kayobe-ansible-user
  vars:
    # We can't assume that a virtualenv exists at this point, so use the system
    # python interpreter.
    ansible_python_interpreter: /usr/bin/python3
  tasks:
    - name: Verify that a command can be executed
      command: hostname
      changed_when: false

    - name: Verify that a command can be executed with become
      command: hostname
      changed_when: false
      become: true