kairosctl

The kairosctl binary is provided as part of releases associated to each Kairos version. It can be used from an external machine to generate network tokens and pair nodes on first-boot.

curl -L https://github.com/kairos-io/provider-kairos/releases/download/v2.7.4/kairosctl-.v2.7.4-.linux-.amd64.tar.gz -o - | tar -xvzf - -C .

# optionally, install the CLI locally
mv kairosctl /usr/local/bin/kairosctl
chmod +x /usr/local/bin/kairosctl

./kairosctl --help
NAME:
   kairosctl - A new cli application

USAGE:
   kairosctl [global options] command [command options] [arguments...]

VERSION:
   0.0.0

AUTHOR:
   Ettore Di Giacinto

COMMANDS:
   register        Registers and bootstraps a node
   bridge          Connect to a kairos VPN network
   get-kubeconfig  Return a deployment kubeconfig
   role            Set or list node roles
   help, h         Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --help, -h     show help
   --version, -v  print the version

COPYRIGHT:
   Ettore Di Giacinto

create-config

Generates a new Kairos configuration file which can be used as cloud-init, with a new unique EdgeVPN network token:

$ ./kairosctl create-config
kairos:
  network_token: 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
  offline: false
  reboot: false
  device: ""
  poweroff: false

Now you can use this in your configuration file to create new Kairos nodes:

kairos:
  network_token: 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
  offline: false
  reboot: false
  device: ""
  poweroff: false

stages:
  network:
    - name: "Setup users"
      authorized_keys:
        kairos:
          - github:yourhandle!

generate-token

Generates a new EdgeVPN network token which can be used in a configuration file:

$ ./kairosctl generate-token
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

And now:

kairos:
  network_token: b3RwOgogIGRodDoKICAgIGludGVydmFsOiA5MjIzMzcyMDM2ODU0Nzc1ODA3CiAgICBrZXk6IFhMMjRYUk1MTlFOQ1pJQTU0SVFLQ1laMk83SENQWEFBU1ZKN0tZSTQ3MzVaUkpKSktRSEEKICAgIGxlbmd0aDogMzIKICBjcnlwdG86CiAgICBpbnRlcnZhbDogOTIyMzM3MjAzNjg1NDc3NTgwNwogICAga2V5OiBMR1dMWFBTUllaU0ZERDdOT0pBNzdKV0ZWQjRHVkZBMjJIWlZPWU1VT0lNSFVYNFZXUURRCiAgICBsZW5ndGg6IDMyCnJvb206IFRtcUt5VnFHQ1ZZam9TRm9CTEVNRGVEdmJzelBkVEdoCnJlbmRlenZvdXM6IGttb3J4Q21sY2NjVVppWmdkSW5xTERvTGJtS3ZGdm9mCm1kbnM6IEZkWVdQc2R4aHdvWHZlb0VzSXNnVHRXbEJUbE9IVHJmCm1heF9tZXNzYWdlX3NpemU6IDIwOTcxNTIwCg==
  offline: false
  reboot: false
  device: ""
  poweroff: false

stages:
  network:
    - name: "Setup users"
      authorized_keys:
        kairos:
          - github:yourhandle!

register

The register command can be used to register and drive installation of nodes via QR code with a cloud-init config file (with --config).

NAME:
    register -

USAGE:
    register [command options] [arguments...]

OPTIONS:
   --config value
   --device value
   --reboot
   --poweroff

When booting Kairos via ISO, the boot process ends up in displaying a QR code which can be parsed by kairosctl register from another machine.

Taking a screenshot

register by default takes a screenshot and tries to find a QR code in it:

kairosctl register

Providing a QR code image/screenshot manually

It can be also be specified an image:

kairosctl register <file.png>

After the pairing is done, the node will start installation with the provided options.

A --device and a --config file are required in order to have a functional installation.

bridge

Connect to the nodes in the VPN P2P network by creating a tun device on the host.

It needs a --network-token($NETWORK_TOKEN) argument and exposes an API endpoint available at localhost:8080 to monitor the network status.

validate

The validate command can be used to validate a cloud config file.

NAME:
   kairosctl validate - Validates a cloud config file

USAGE:
   kairosctl validate [command options] [arguments...]

DESCRIPTION:
   
   The validate command expects a configuration file as its only argument. Local files and URLs are accepted.
       

OPTIONS:
   --help, -h  show help