#- name: Load br_netfilter kernel-module
#  modprobe:
#      name: br_netfilter
#      state: present

- name: Set sysctl settings for iptables bridged traffic
  copy:
    dest: "/etc/sysctl.d/kubernetes.conf"
    content: |
        net.bridge.bridge-nf-call-ip6tables = 1
        net.bridge.bridge-nf-call-iptables = 1

        net.ipv4.conf.all.forwarding=1
        net.ipv6.conf.all.forwarding=1
  notify: reload_sysctl

#- name: Disable swap
#  command: swapoff -a

- name: Install iptables
  package:
      name:
          #- containerd
          - iptables
      state: latest

- name: Check if containerd-service exists & is started
  service:
    name: containerd
    state: started
  ignore_errors: true
  register: containerd_status
  
- name: Install containerd when not exists
  package:
    name:
      - containerd
  when: containerd_status is failed

- name: Create containerd config-folder
  file:
    path: /etc/containerd
    state: directory

- name: Deploy containerd-config
  ansible.builtin.copy:
    src: containerd_config.toml
    dest: /etc/containerd/config.toml
    mode: u=rw,g=r,o=r
  notify: restart_containerd

- name: Set control-plane-dns-endpoint towards local-ip
  lineinfile:
    dest: /etc/hosts
    line: "{{ ansible_facts.default_ipv6.address }} k8s-control-plane.system.ruekov.eu" 

- name: Setting network facts..
  set_fact:
    inventory_group_index: "{{ groups['kubernetes'].index(inventory_hostname) }}"
    ipPool_ipv6_nodeip_cidr_only_prefix:  '{{ kubernetes.ipPool.ipv6.nodeip_cidr | regex_replace ("(?<=:)[0-9a-f]{0,4}(\/[0-9]+)?$","") }}'
    ipPool_ipv6_nodeip_cidr_cidr:         '{{ kubernetes.ipPool.ipv6.nodeip_cidr | regex_replace ("^.*?\/","") }}'
    ipPool_ipv4_nodeip_cidr_only_prefix:  '{{ kubernetes.ipPool.ipv4.nodeip_cidr | regex_replace ("(?<=.)[0-9]{0,3}(\/[0-9]+)?$","") }}'
    ipPool_ipv4_nodeip_cidr_cidr:         '{{ kubernetes.ipPool.ipv4.nodeip_cidr | regex_replace ("^.*?\/","") }}'
  
- name: Setting more network_facts..
  set_fact:
    ipPool_ipv6_nodeip: "{{ ipPool_ipv6_nodeip_cidr_only_prefix }}{{ inventory_group_index|int +1 }}"
    ipPool_ipv4_nodeip: "{{ ipPool_ipv4_nodeip_cidr_only_prefix }}{{ inventory_group_index|int +1 }}"

- name: Setup IPv4-Network
  lineinfile:
    insertafter: "iface {{ ansible_facts.default_ipv4.interface }} inet .+"
    dest: "/etc/network/interfaces"
    line: "    up /usr/sbin/ip addr add {{ ipPool_ipv4_nodeip }} dev {{ ansible_facts.default_ipv4.interface }}"
  register: setup_network_ipv4

- name: Setup IPv6-Network
  lineinfile:
    insertafter: "iface {{ ansible_facts.default_ipv4.interface }} inet6 .+"
    dest: "/etc/network/interfaces"
    line: "    up /usr/sbin/ip -6 addr add {{ ipPool_ipv6_nodeip }} dev {{ ansible_facts.default_ipv4.interface }}"
  register: setup_network_ipv6

- name: Force-Reload network-interface
  command: "ifup --force {{ ansible_facts.default_ipv4.interface }}"
  when: setup_network_ipv4.changed or setup_network_ipv6.changed

- name: Run handlers to reload configurations
  meta: flush_handlers