---
- hosts: all
  become: true
  tasks:
  - debug: var=hostvars[inventory_hostname]['ansible_default_ipv4']['address']
  - debug: var=hostvars[inventory_hostname]['ansible_default_ipv6']['address']
  - name: Install packages that allow apt to be used over HTTPS
    apt:
      name: "{{ packages }}"
      state: present
      update_cache: yes
    vars:
      packages:
      - aptitude
      - apt-transport-https
      - ca-certificates
      - curl
      - gnupg-agent
      - software-properties-common

  - name: Add an apt signing key for Docker
    apt_key:
      url: https://download.docker.com/linux/ubuntu/gpg
      state: present

  - name: Add apt repository for stable version
    apt_repository:
      repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
      state: present

  - name: Install docker and its dependecies
    apt: 
      name: "{{ packages }}"
      state: present
      update_cache: yes
    vars:
      packages:
      - docker-ce 
      - docker-ce-cli 
      - containerd.io
    notify:
      - docker status

  - name: Add user to docker group
    user:
      name: torma
      group: docker
  - name: Remove swapfile from /etc/fstab
    mount:
      name: "{{ item }}"
      fstype: swap
      state: absent
    with_items:
      - swap
      - none

  - name: Disable swap
    command: swapoff -a
    when: ansible_swaptotal_mb > 0

  - name: Add an apt signing key for Kubernetes
    apt_key:
      url: https://packages.cloud.google.com/apt/doc/apt-key.gpg
      state: present

  - name: Adding apt repository for Kubernetes
    apt_repository:
      repo: deb https://apt.kubernetes.io/ kubernetes-xenial main
      state: present
      filename: kubernetes.list

  - name: Install Kubernetes binaries
    apt: 
      name: "{{ packages }}"
      state: present
      update_cache: yes
    vars:
      packages:
        - kubelet 
        - kubeadm 
        - kubectl

  - name: Restart kubelet
    service:
      name: kubelet
      daemon_reload: yes
      state: restarted

  - name: Initialize the Kubernetes cluster using kubeadm
    command: kubeadm init --apiserver-advertise-address="{{ hostvars[inventory_hostname]['ansible_default_ipv4']['address'] }}"

  - name: Creates .kube directory
    file:
      path: /home/{{ ansible_user_id }}/.kube
      state: directory

  - name: Copy files needed for kubectl
    copy:
      remote_src: yes
      src: /etc/kubernetes/admin.conf
      dest: /home/{{ ansible_user_id }}/.kube/config
      owner: "{{ ansible_user_id }}"
      group: users

  - name: set up weave network
    shell: export KUBECONFIG=/etc/kubernetes/admin.conf && export kubever=$(kubectl version | base64 | tr -d '\n') && kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$kubever"
    register: weavenet_out

  - name: Generate join command
    shell: kubeadm token create --print-join-command > /tmp/join_command

  - name: Specifying a destination path
    fetch:
      src: /tmp/join_command
      dest: /tmp/ansible/join_command
      flat: yes

  handlers:
    - name: docker status
      service: name=docker state=started