isle/entrypoint/src/bootstrap/hosts.go

package bootstrap

import (
	"cryptic-net/nebula"
	"fmt"
	"net"
)

// NebulaHost describes the nebula configuration of a Host which is relevant for
// other hosts to know.
type NebulaHost struct {
	CertPEM    string `yaml:"crt"`
	PublicAddr string `yaml:"public_addr,omitempty"`
}

// GarageHost describes a single garage instance in the GarageHost.
type GarageHostInstance struct {
	ID        string `yaml:"id"`
	RPCPort   int    `yaml:"rpc_port"`
	S3APIPort int    `yaml:"s3_api_port"`
}

// GarageHost describes the garage configuration of a Host which is relevant for
// other hosts to know.
type GarageHost struct {
	Instances []GarageHostInstance `yaml:"instances"`
}

// Host consolidates all information about a single host from the bootstrap
// file.
type Host struct {
	Name   string      `yaml:"name"`
	Nebula NebulaHost  `yaml:"nebula"`
	Garage *GarageHost `yaml:"garage,omitempty"`
}

// IP returns the IP address encoded in the Host's nebula certificate, or panics
// if there is an error.
func (h Host) IP() net.IP {

	ip, err := nebula.IPFromHostCertPEM(h.Nebula.CertPEM)
	if err != nil {
		panic(fmt.Errorf("could not parse IP out of cert for host %q: %w", h.Name, err))
	}

	return ip
}