virtigoctl/create.go

// Copyright 2024 WIT.COM Inc Licensed GPL 3.0

package main

import (
	"errors"
	"fmt"
	"path/filepath"
	"strings"

	pb "go.wit.com/lib/protobuf/virtbuf"
	"go.wit.com/log"
	"google.golang.org/protobuf/proto"
)

func createFilename(dir string, filename string) error {
	log.Info("dir ==", dir)
	log.Info("filename ==", filename)

	filetype := filepath.Ext(filename)
	if filetype != ".qcow2" {
		log.Info("file type", filetype, "not supported")
		return errors.New("only supporting qcow2 images for now")
	}
	hostname := strings.TrimSuffix(filename, filetype)
	log.Info("hostname ==", hostname)

	newDroplet := pb.NewDefaultDroplet(hostname)
	newDisk := new(pb.Disk)
	newDisk.Filename = filename
	newDisk.Filepath = dir
	newDroplet.Disks = append(newDroplet.Disks, newDisk)

	var eth *pb.Network
	eth = new(pb.Network)
	eth.Name = "worldbr"
	newDroplet.Networks = append(newDroplet.Networks, eth)

	url := urlbase + "/create"

	//	body, err := postDropletJSON(url, newDroplet)
	//	if err != nil {
	//		log.Info("postDropletJSON() failed:", err)
	//		return err
	//	}

	body, err := postDropletWIRE(url, newDroplet)
	if err != nil {
		log.Info("postDropletJSON() failed:", err)
		return err
	}

	test := strings.TrimSpace(string(body))
	// log.Info("virtigo returned body:", test)
	for _, line := range strings.Split(test, "\n") {
		log.Info("GOT:", line)
	}
	return nil
}

// send protobuf as wire data
func postDropletWIRE(url string, d *pb.Droplet) (string, error) {
	var bytes []byte
	var err error
	// Automatically marshal to protobuf binary format
	bytes, err = proto.Marshal(d)
	if err != nil {
		log.Fatalf("Failed to marshal: %v", err)
		return "", err
	}
	// fmt.Printf("Encoded data: %x\n", bytes)
	fmt.Printf("Encoded len(data): %d\n", len(bytes))
	return post(url, bytes)
}

// send protobuf in json format
func postDropletJSON(url string, d *pb.Droplet) (string, error) {
	// send protobuf as JSON
	bytes, err := d.MarshalJSON()
	if err != nil {
		log.Info("virtbuf.MarshalJson() failed:", err)
		return "", err
	}
	return post(url, bytes)
}

func post(url string, bytes []byte) (string, error) {
	body, err := httpPost(url, bytes)
	if err != nil {
		log.Info("httpPost() failed:", err)
		return "", err
	}
	return string(body), nil
}