---
- hosts: "masters, workers"
  remote_user: ubuntu
  become: yes
  become_method: sudo
  become_user: root
  gather_facts: yes
  connection: ssh

  tasks:
     - name: Create containerd config file
       file:
         path: "/etc/modules-load.d/containerd.conf"
         state: "touch"

     - name: Add conf for containerd
       blockinfile:
         path: "/etc/modules-load.d/containerd.conf"
         block: |
               overlay
               br_netfilter

     - name: modprobe
       shell: |
               sudo modprobe overlay
               sudo modprobe br_netfilter


     - name: Set system configurations for Kubernetes networking
       file:
         path: "/etc/sysctl.d/99-kubernetes-cri.conf"
         state: "touch"

     - name: Add conf for containerd
       blockinfile:
         path: "/etc/sysctl.d/99-kubernetes-cri.conf"
         block: |
                net.bridge.bridge-nf-call-iptables = 1
                net.ipv4.ip_forward = 1
                net.bridge.bridge-nf-call-ip6tables = 1

     - name: Apply new settings
       command: sudo sysctl --system

     - name: install containerd
       shell: |
               sudo apt-get update && sudo apt-get install -y containerd
               sudo mkdir -p /etc/containerd
               sudo containerd config default | sudo tee /etc/containerd/config.toml
               sudo systemctl restart containerd

     - name: disable swap
       shell: |
               sudo swapoff -a
               sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab

     - name: install and configure dependencies
       shell: |
               sudo apt-get update && sudo apt-get install -y apt-transport-https curl
               curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -

     - name: Create kubernetes repo file
       file:
         path: "/etc/apt/sources.list.d/kubernetes.list"
         state: "touch"

     - name: Add K8s Source
       blockinfile:
         path: "/etc/apt/sources.list.d/kubernetes.list"
         block: |
               deb https://apt.kubernetes.io/ kubernetes-xenial main

     - name: install kubernetes
       shell: |
               sudo apt-get update
               sudo apt-get install -y kubelet=1.20.1-00 kubeadm=1.20.1-00 kubectl=1.20.1-00
               sudo apt-mark hold kubelet kubeadm kubectl