- name: check for lxc container dir
  stat:
    path: '/var/lib/lxc/{{ vm_name }}'
  register: lxc_existance

- name: check for lxc container existance
  container_exists:
    name: "{{ vm_name }}"
  register: container_exists

- block:
    - name: create the lxc container
      lxc_container:
          name: "{{ vm_name }}"
          backing_store: lvm
          vg_name: "{{ inventory_hostname }}vg"
          lv_name: "vm_{{ vm_name }}"
          fs_type: xfs
          container_log: true
          template: debian
          template_options: --release {{ distro }} --packages=ssh,python
#          container_command: |
#              echo "ssh-rsa {{ user_ca_key }}" > /etc/ssh/user_ca.pub
#              echo "TrustedUserCAKeys /etc/ssh/user_ca.pub" >> /etc/ssh/sshd_config
#              sed -i 's/iface eth0 inet dhcp/iface eth0 inet manual/' /etc/network/interfaces
          state: stopped
    - name: deploy container config
      template: src=config.j2 dest="/var/lib/lxc/{{ vm_name }}/config"
    - name: start container
      lxc_container:
          name: "{{ vm_name }}"
          state: started
      when: auto_start|bool
  when: not (container_exists.exists and lxc_existance.stat.isdir)

- name: update container config
  template:
    src: config.j2
    dest: "/var/lib/lxc/{{ vm_name }}/config"
  register: container_config

- name: set container running state
  lxc_container:
      name: "{{ vm_name }}"
      state: "{{ container_state }}"
  register: container_running_state

- name: update container DNS configuration
  shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "grep '^nameserver {{ hostvars[ext_gateway].ansible_host }}$' /etc/resolv.conf || echo 'nameserver {{ hostvars[ext_gateway].ansible_host }}' > /etc/resolv.conf"
  register: container_dns_configuration
  changed_when: "container_dns_configuration.stdout != 'nameserver {{ hostvars[ext_gateway].ansible_host }}'"


- name: Check if host certificate exists
  container_file_exists:
    name: "{{ vm_name }}"
    path: "/etc/ssh/ssh_host_ed25519_key-cert.pub"
  register: host_certificate_exists

- name: check if cert key exist
  shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "ls /etc/ssh/ssh_host_ed25519_key-cert.pub"
  register: cert_key_existance
  ignore_errors: true
  changed_when: "cert_key_existance.rc != 0"
- block:
    - name: get pub key
      shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "cat /etc/ssh/ssh_host_ed25519_key.pub"
      register: pub_key

    - debug: var=pub_key verbosity=2

    - name: generate host request
      set_fact:
        cert_request:
          type: 'sign_request'
          request:
            keyType: 'ssh_host'
            hostName: '{{ vm_name }}'
            keyData: '{{ pub_key.stdout }}'

    - debug: var=cert_request verbosity=2

    - name: start sign request
      raw: "{{ cert_request | to_json }}"
      delegate_to: "{{ item }}"
      delegate_facts: True
      with_items: "{{ groups['cas'] }}"
      register: request_result

    - debug: var=request_result verbosity=2

    - set_fact:
          request_output: "{{ request_result.results[0].stdout|string|from_json }}"

    - debug: var=request_output verbosity=2

    - name: generate get request
      set_fact:
        get_request:
          type: 'get_certificate'
          requestID: '{{ request_output.requestID }}'

    - debug:
        var: get_request
        verbosity: 2

    - debug:
        msg: "Please manualy confirm sign request with id {{ request_output.requestID }}"

    - name: wait for cert
      raw: "{{ get_request | to_json }}"
      delegate_to: "{{ item }}"
      delegate_facts: True
      with_items: "{{ groups['cas'] }}"
      register: cert_result

    - debug: var=cert_result verbosity=2

    - set_fact:
          cert_key: "{{ cert_result.results[0].stdout|string|from_json }}"

    - debug:
        var: request_output
        verbosity: 2

    - name: set cert key
      shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "echo '{{ cert_key.result }}' > /etc/ssh/ssh_host_ed25519_key-cert.pub"
      register: set_pub_key
  when: "cert_key_existance.rc != 0"

- name: update container network configuration
  shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "grep -F 'iface eth0 inet manual' /etc/network/interfaces || sed -i 's/iface eth0 inet dhcp/iface eth0 inet manual/' /etc/network/interfaces"
  register: container_network
  changed_when: "container_network.stdout != 'iface eth0 inet manual'"

- name: install packages
  shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "apt-get install python ssh -y"
  register: install_packages
  changed_when: "install_packages.stdout.find('0 newly installed') == -1"

- name: lookup user ca key
  set_fact:
    user_ca_key: "{{ lookup('file', 'test_ssh_ca.pub') }}"

- name: update container user ca key
  shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "grep -F 'ssh-rsa {{ user_ca_key }}' /etc/ssh/user_ca.pub || echo 'ssh-rsa {{ user_ca_key }}' > /etc/ssh/user_ca.pub"
  register: update_user_ca_key
  changed_when: "update_user_ca_key.stdout != 'ssh-rsa {{ user_ca_key }}'"

- name: trust user ca key
  shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "grep -F 'TrustedUserCAKeys /etc/ssh/user_ca.pub' /etc/ssh/sshd_config || echo 'TrustedUserCAKeys /etc/ssh/user_ca.pub' >> /etc/ssh/sshd_config"
  register: trust_ca_key
  changed_when: "trust_ca_key.stdout != 'TrustedUserCAKeys /etc/ssh/user_ca.pub'"

- name: restart-container
  lxc_container:
      name: "{{ vm_name }}"
      state: restarted
  register: container_restart
  when: set_pub_key.changed or install_packages.changed or update_user_ca_key.changed or trust_ca_key.changed or container_network.changed or container_config.changed or container_dns_configuration.changed

- name: "waiting for ssh on {{ vm_name }} vm to start"
  wait_for:
    host: "{{ hostvars[vm_name]['ansible_host'] }}"
    port: 22
    timeout: 30
  delegate_to: "{{ inventory_hostname }}"
  delegate_facts: True

- pause: seconds=20
  when: container_restart.changed or container_running_state.changed