worker-node-2.yaml

bootcmd:
  - sed -i 's/#DNS=/DNS=1.1.1.1 8.8.8.8/' /etc/systemd/resolved.conf && sed -i 's/#Domains=/Domains=k8s.local/' /etc/systemd/resolved.conf && systemctl restart systemd-resolved.service
  - curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
  - echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" > /etc/apt/sources.list.d/kubernetes.list
growpart:
  mode: auto
  devices: [ "/" ]
fqdn: "worker-node-2.k8s.local"
prefer_fqdn_over_hostname: true
timezone: "Etc/UTC"
locale: "en_US.UTF-8"
package_update: true
package_upgrade: true
preserve_sources_list: true
package_reboot_if_required: false
manage_etc_hosts: false
packages:
  - containerd
  - kubeadm=1.21.0-00
  - kubelet=1.21.0-00
  - kubectl=1.21.0-00
  - apt-transport-https
  - ca-certificates
  - curl
  - jq
write_files:
  - path: /etc/modules-load.d/containerd.conf
    content: |
      overlay
      br_netfilter
  - path: /etc/sysctl.d/99-kubernetes-cri.conf
    content: |
      net.ipv4.ip_forward=1
      net.bridge.bridge-nf-call-iptables=1
      net.bridge.bridge-nf-call-ip6tables=1
  - path: /etc/netplan/51-cloud-init.yaml
    content: |
      network:
        ethernets:
          eth0:
            addresses: [ 10.10.10.20/24 ]
        version: 2
  - path: /etc/hosts
    content: |
      127.0.0.1   localhost
      10.10.10.1  control-plane.k8s.local control-plane
      10.10.10.10 worker-node-1.k8s.local worker-node-1
      10.10.10.20 worker-node-2.k8s.local worker-node-2
      ::1         localhost ip6-localhost ip6-loopback
      ff02::1     ip6-allnodes
      ff02::2     ip6-allrouters
runcmd:
  - mkdir /etc/containerd
  - containerd config default > /etc/containerd/config.toml
  - systemctl enable containerd.service
  - apt-mark hold kubelet kubeadm kubectl
  - swapoff -a
  - sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
power_state:
  mode: reboot
  delay: now