---
- name: disable docker iptales and bridge
  copy:
    src: daemon.json
    dest: /etc/docker/daemon.json

- name: create network config directory
  file:
    name: /var/lib/kubenet/
    state: directory

- name: configure wireguard port
  set_fact:
    kubenet_wireguard_port: "{{ kubernetes.wireguard_port | default(51820) }}"

- name: install ifupdown script
  template:
    src: ifupdown.sh.j2
    dest: /var/lib/kubenet/ifupdown.sh
    mode: 0755
  # TODO: notify reload... this is unfortunately already to late because
  #                        it must probably be brought down by the old version of the script

- name: generate wireguard private key
  shell: "umask 077; wg genkey > /var/lib/kubenet/kube-wg0.privatekey"
  args:
    creates: /var/lib/kubenet/kube-wg0.privatekey

- name: fetch wireguard public key
  shell: "wg pubkey < /var/lib/kubenet/kube-wg0.privatekey"
  register: kubenet_wireguard_pubkey
  changed_when: false
  check_mode: no

- name: install systemd service unit for network interfaces
  copy:
    src: kubenet-interfaces.service
    dest: /etc/systemd/system/kubenet-interfaces.service
  # TODO: notify: reload...

- name: make sure kubenet interfaces service is started and enabled
  systemd:
    daemon_reload: yes
    name: kubenet-interfaces.service
    state: started
    enabled: yes

- name: install systemd units for every wireguard peer
  with_items: "{{ kubernetes.net_index.keys() | difference(inventory_hostname) }}"
  template:
    src: kubenet-peer.service.j2
    dest: "/etc/systemd/system/kubenet-peer-{{ item }}.service"

- name: make sure kubenet peer services are started and enabled
  with_items: "{{ kubernetes.net_index.keys() | difference(inventory_hostname) }}"
  systemd:
    daemon_reload: yes
    name: "kubenet-peer-{{ item }}.service"
    state: started
    enabled: yes

- name: enable IPv4 forwarding
  sysctl:
    name: net.ipv4.ip_forward
    value: 1
    sysctl_set: yes
    state: present
    reload: yes

- name: create cni config directory
  file:
    name: /etc/cni/net.d
    state: directory

- name: install cni config
  template:
    src: k8s.json.j2
    dest: /etc/cni/net.d/k8s.json