matchbox/Documentation/api.md

API

iPXE Script

Serves a static iPXE boot script which gathers client machine attributes and chain loads to the iPXE endpoint. Configure your DHCP server or iPXE server to boot from this script (e.g. set dhcp-boot:dhcp-boot=tag:ipxe,http://bootcfg.domain.com/ipxe/boot.ipxe if using dnsmasq).

GET http://bootcfg.example.com/boot.ipxe
GET http://bootcfg.example.com/boot.ipxe.0   // for dnsmasq

Response

#!ipxe
chain config?uuid=${uuid}&mac=${net0/mac:hexhyp}

iPXE

Finds the spec matching the hardware attribute query parameters and renders the boot config as an iPXE script. Attributes are matched in priority order (UUID, MAC).

GET http://bootcfg.example.com/ipxe

Query Parameters

Name	Type	Description
uuid	string	Hardware UUID
mac	string	MAC address

Response

#!ipxe
kernel /images/coreos/835.9.0/coreos_production_pxe.vmlinuz cloud-config-url=http://172.17.0.2:8080/cloud?uuid=${uuid}&mac=${net0/mac:hexhyp} coreos.autologin
initrd  /images/coreos/835.9.0/coreos_production_pxe_image.cpio.gz
boot

The kernel, cmdline kernel options, and initrd are populated from a Spec.

Pixiecore

Finds the spec matching the hardware attribute query parameters and renders the boot config as JSON to implement the Pixiecore API spec. Currently, Pixiecore only provides the machine's MAC address for matching specs.

GET http://bootcfg.example.com/pixiecore/v1/boot/:MAC

URL Parameters

Name	Type	Description
mac	string	MAC address

Response

{
  "kernel":"/images/coreos/877.1.0/coreos_production_pxe.vmlinuz",
  "initrd":["/images/coreos/877.1.0/coreos_production_pxe_image.cpio.gz"],
  "cmdline":{
    "cloud-config-url":"http://bootcfg.example.com/cloud",
    "coreos.autologin":""
  }
}

Cloud Config

Finds the spec matching the hardware attribute query parameters and returns the specified cloud config file. Attributes are matched in priority order (UUID, MAC).

GET http://bootcfg.example.com/cloud

Query Parameters

Name	Type	Description
uuid	string	Hardware UUID
mac	string	MAC address

Response

#cloud-config
coreos:
  units:
    - name: etcd2.service
      command: start
    - name: fleet.service
      command: start

API Resources

Machines

Get a Machine definition by id (UUID, MAC).

http://bootcfg.domain.com/machine/:id

URL Parameters

Name	Type	Description
id	string	machine identifier

Response

{
  "id": "2d9354a2-e8db-4021-bff5-20ffdf443d6f",
  "spec": {
    "id": "",
    "boot": {
      "kernel": "\/images\/coreos\/877.1.0\/coreos_production_pxe.vmlinuz",
      "initrd": [
        "\/images\/coreos\/877.1.0\/coreos_production_pxe_image.cpio.gz"
      ],
      "cmdline": {
        "cloud-config-url": "http:\/\/172.17.0.2:8080\/cloud?uuid=${uuid}&mac=${net0\/mac:hexhyp}",
        "coreos.autologin": ""
      }
    },
    "cloud_id": "node1-cloud.yml"
  },
  "spec_id": ""
}

Specs

Get a Spec definition by id (UUID, MAC).

http://bootcfg.domain.com/spec/:id

URL Parameters

Name	Type	Description
id	string	spec identifier

Response

{
  "id": "orion",
  "boot": {
    "kernel": "\/images\/coreos\/835.9.0\/coreos_production_pxe.vmlinuz",
    "initrd": [
      "\/images\/coreos\/835.9.0\/coreos_production_pxe_image.cpio.gz"
    ],
    "cmdline": {
      "cloud-config-url": "http:\/\/172.17.0.2:8080\/cloud?uuid=${uuid}&mac=${net0\/mac:hexhyp}",
      "coreos.autologin": ""
    }
  },
  "cloud_id": "orion-cloud-config.yml"
}

Image Assets

If you need to host kernel and initrd images within your network, bootcfg server's /images/ route serves free-form static assets. Set the -images-path when starting the bootcfg server. Here is an example images directory layout:

images/
└── coreos
    └── 835.9.0
        ├── coreos_production_pxe.vmlinuz
        └── coreos_production_pxe_image.cpio.gz
    └── 877.1.0
        ├── coreos_production_pxe.vmlinuz
        └── coreos_production_pxe_image.cpio.gz