CloudInit configuration for which confgures a debian 9 instance and installs docker on it

cloud-init-yml

#cloud-config
users:
  - name: admin
    ssh-authorized_keys:
      - ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIG3eO5g2TPLcE3pzt/6XiGqGjbAeCr41s+5mSR0aZuHt jonas@thinkpad-jb
    sudo: ['ALL=(ALL) NOPASSWD:ALL']
    groups:
      - sudo
      - docker
    shell: /bin/bash
package_upgrade: true
packages:
  - vim
  - apt-transport-https
  - ca-certificates
  - curl
  - gnupg2
  - software-properties-common
runcmd:
  - curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
  - add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
  - apt-get update -y
  - apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose
write_files:
  - path: /etc/ssh/sshd_config
    content: |
      Protocol 2
      Port 222
      HostKey /etc/ssh/ssh_host_rsa_key
      HostKey /etc/ssh/ssh_host_ecdsa_key
      HostKey /etc/ssh/ssh_host_ed25519_key
      SyslogFacility AUTH
      LogLevel INFO
      PermitRootLogin no
      StrictModes yes
      IgnoreRhosts yes
      PubkeyAuthentication yes
      PasswordAuthentication no
      ChallengeResponseAuthentication no
      UsePAM yes
      X11Forwarding no
      PrintMotd no
      AcceptEnv LANG LC_*
      Subsystem	sftp	/usr/lib/openssh/sftp-server
      AllowUsers admin