LongHorn on K3s on FlatCar on DigitalOcean

ignition.json

{
  "ignition": {
    "version": "2.1.0"
  },
  "storage": {
    "files": [
      {
        "filesystem": "root",
        "path": "/etc/modules-load.d/iscsi_tcp.conf",
        "mode": 420,
        "contents": {
          "source": "data:,iscsi_tcp"
        }
      }
    ]
  },
  "systemd": {
    "units": [
      {
        "name": "locksmithd.service",
        "mask": true
      },
      {
        "name": "update-engine.service",
        "enabled": true
      },
      {
        "name": "iscsid-initiatorname.service",
        "dropins": [
          {
            "name": "iscsi-initiatorname.conf",
            "contents": "[Install]\n\tWantedBy=multi-user.target\n"
          }
        ]
      },
      {
        "name": "iscsid-initiatorname.service",
        "enabled": true
      },
      {
        "name": "install-opt-dir.service",
        "enabled": true,
        "contents": "[Unit]\n\tDescription=Install /opt directories\n\tConditionPathIsDirectory=!/opt/libexec\n\tConditionPathIsDirectory=!/opt/libexec.wd\n\n[Service]\n\tType=oneshot\n\tExecStart=/usr/bin/mkdir -p /opt/libexec /opt/libexec.wd\n\n[Install]\n\tWantedBy=multi-user.target\n"
      },
      {
        "name": "usr-libexec.mount",
        "enabled": true,
        "contents": "[Unit]\n\tDescription=Allow k8s CNI plugins to be installed\n\tBefore=local-fs.target\n\tRequires=install-opt-dir.service\n\tConditionPathExists=/opt/libexec\n\tConditionPathExists=/opt/libexec.wd\n[Mount]\n\tType=overlay\n\tWhat=overlay\n\tWhere=/usr/libexec\n\tOptions=lowerdir=/usr/libexec,upperdir=/opt/libexec,workdir=/opt/libexec.wd\n[Install]\n\tWantedBy=local-fs.target\n"
      },
      {
        "name": "install-k3s.service",
        "enabled": true,
        "contents": "[Unit]\n\tDescription=Install k3s\n\tRequires=usr-libexec.mount\n\tConditionPathExists=!/etc/.k3s-installed\n[Service]\n\tType=oneshot\n\tEnvironment=INSTALL_K3S_BIN_DIR=/opt/bin INSTALL_K3S_SELINUX_WARN=true K3S_TOKEN=0pH3wFBZOu6a8v0zaJ29ZBCHy0BWG6HVvT5FvKtmFhMLOVcVBae56iU814A2VSoz23Mr4Y INSTALL_K3S_EXEC=\"server --cluster-init --disable local-storage\"\n\tExecStart=/usr/bin/mkdir -p /opt/bin\n\tExecStart=/usr/bin/curl -sfSL -o /tmp/k3s.sh https://get.k3s.io\n\tExecStart=/usr/bin/chmod +x /tmp/k3s.sh\n\tExecStart=/tmp/k3s.sh\n\tExecStart=/usr/bin/touch /etc/.k3s-installed\n[Install]\n\tWantedBy=multi-user.target\n"
      }
    ]
  }
}

The K3S token in the gist is a dummy one, so no dice to honkers 😉 /goose 🦢