%%%% CONTAINERD PREREQS %%%%%%

sudo apt-get update
sudo apt-get install libseccomp2

export VERSION=1.3.0

wget https://storage.googleapis.com/cri-containerd-release/cri-containerd-${VERSION}.linux-amd64.tar.gz

sudo tar --no-overwrite-dir -C / -xzf cri-containerd-${VERSION}.linux-amd64.tar.gz
sudo systemctl start containerd

sudo su

%%%%% CONTAINERD PREREQS %%%%%%

cat > /etc/modules-load.d/containerd.conf <<EOF
overlay
br_netfilter
EOF

modprobe overlay
modprobe br_netfilter

# Setup required sysctl params, these persist across reboots.
cat > /etc/sysctl.d/99-kubernetes-cri.conf <<EOF
net.bridge.bridge-nf-call-iptables  = 1
net.ipv4.ip_forward                 = 1
net.bridge.bridge-nf-call-ip6tables = 1
EOF

sysctl --system

%%%%% END CONTAINERD PREREQS


%%%%% Installing kubeadm, kubelet and kubectl %%%%%


apt-get update && apt-get install -y apt-transport-https curl
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
deb https://apt.kubernetes.io/ kubernetes-xenial main
EOF
apt-get update
apt-get install -y kubelet kubeadm kubectl
apt-mark hold kubelet kubeadm kubectl


%%%%% Create Systemd Drop-In for Containerd %%%%%%

cat <<EOF >/etc/systemd/system/kubelet.service.d/0-containerd.conf
[Service]
Environment="KUBELET_EXTRA_ARGS=--container-runtime=remote --runtime-request-timeout=15m --container-runtime-endpoint=unix:///run/containerd/containerd.sock"
EOF

systemctl daemon-reload
systemctl restart kubelet


%%%%%%%%%%% ANSIBLE %%%%%%%%%

sudo apt-get install ansible