{
  "builders": [
    {
      "type": "digitalocean",
      "image": "ubuntu-18-04-x64",
      "region": "nyc1",
      "size": "s-1vcpu-1gb",
      "snapshot_name": "packer-syncthing-{{timestamp}}",
      "ssh_username": "root"
    }
  ],
  "provisioners": [
    {
      "type": "shell",
      "inline": [
        "sudo apt-get update",
        "sudo apt-get install -y bindfs ca-certificates",
        "sudo useradd -m syncthing",
        "sudo mkdir -p /mnt/syncthing-volume",
        "sudo mkdir -p /mnt/syncthing",
        "sudo echo \"/dev/disk/by-label/syncthing-volume /mnt/syncthing-volume ext4 defaults,nofail,discard,noatime 0 2\" >> /etc/fstab",
        "sudo echo \"/mnt/syncthing-volume /mnt/syncthing fuse.bindfs force-user=syncthing,force-group=syncthing 0 0\" >> /etc/fstab",
        "sudo findmnt --verify --verbose"
      ]
    },
    {
      "type": "file",
      "source": "syncthing@.service",
      "destination": "/tmp/syncthing@.service"
    },
    {
      "type": "file",
      "source": "syncthing-config.xml",
      "destination": "/tmp/syncthing-config.xml"
    },
    {
      "type": "file",
      "source": "syncthing-cert.pem",
      "destination": "/tmp/syncthing-cert.pem"
    },
    {
      "type": "file",
      "source": "syncthing-key.pem",
      "destination": "/tmp/syncthing-key.pem"
    },
    {
      "type": "shell",
      "inline": [
        "sudo update-ca-certificates",
        "sudo curl -s -o /usr/share/keyrings/syncthing-archive-keyring.gpg https://syncthing.net/release-key.gpg",
        "echo \"deb [signed-by=/usr/share/keyrings/syncthing-archive-keyring.gpg] https://apt.syncthing.net/ syncthing stable\" | sudo tee /etc/apt/sources.list.d/syncthing.list",
        "printf \"Package: *\nPin: origin apt.syncthing.net\nPin-Priority: 990\n\" | sudo tee /etc/apt/preferences.d/syncthing",
        "sudo apt-get update",
        "sudo apt-get install -y syncthing",
        "sudo mkdir -p /home/syncthing/.config/syncthing",
        "sudo mv /tmp/syncthing-config.xml /home/syncthing/.config/syncthing/config.xml",
        "sudo mv /tmp/syncthing-cert.pem /home/syncthing/.config/syncthing/cert.pem",
        "sudo mv /tmp/syncthing-key.pem /home/syncthing/.config/syncthing/key.pem",
        "sudo chown -R syncthing:syncthing /home/syncthing/.config/syncthing",
        "sudo mv /tmp/syncthing@.service /etc/systemd/system/syncthing@.service",
        "sudo systemctl daemon-reload",
        "sudo systemctl enable syncthing@syncthing"
      ]
    }
  ],
  "post-processors": [
    {
      "type": "manifest"
    }
  ]
}