generate XML by droplet hostname

Signed-off-by: Jeff Carr <jcarr@wit.com>

Makefile

@@ -12,6 +12,10 @@ all:
 xml-add:
 	./virtigo --libvirt ~/libvirt/*.xml --xml-ignore-disk=true
 
+start-uptime.wit.com:
+	rm /tmp/blahcarr.xml
+	./virtigo --start uptime.wit.com
+
 start-all-droplets:
 	curl --silent http://localhost:8080/start?start=git.wit.org
 	curl --silent http://localhost:8080/start?start=go.wit.com

argv.go

@@ -19,6 +19,7 @@ type args struct {
 	Config    string   `arg:"env:VIRTIGO_HOME"                  help:"defaults to ~/.config/virtigo/"`
 	Port      int      `arg:"--port"     default:"8080"         help:"allow droplet events via http"`
 	Daemon    bool     `arg:"--daemon"                          help:"run in daemon mode"`
+	Start     string   `arg:"--start"                           help:"start a droplet"`
 }
 
 //	Uptime bool     `arg:"--uptime"   default:"true"    help:"allow uptime checks for things like Kuma"`

libvirtxml.go

@@ -18,12 +18,12 @@ func makeStandardXml(d *DropletT) *libvirtxml.Domain {
 	log.Info("create new xml file for:", d.pb.Hostname)
 	domcfg := &libvirtxml.Domain{}
 
-	addDefaults(domcfg, "standard.x86")
+	addDefaultXml(domcfg, "standard.x86")
-	addDefaults(domcfg, "memory")
+	addDefaultXml(domcfg, "memory")
-	addDefaults(domcfg, "network")
+	addDefaultXml(domcfg, "network")
-	addDefaults(domcfg, "spice")
+	addDefaultXml(domcfg, "spice")
-	addDefaults(domcfg, "qcow")
+	addDefaultXml(domcfg, "qcow")
-	addDefaults(domcfg, d.pb.Hostname)
+	addDefaultXml(domcfg, d.pb.Hostname)
 
 	return domcfg
 }
@@ -60,7 +60,7 @@ func setDiskFilename(domcfg *libvirtxml.Domain, filename string) {
 	}
 }
 
-func addDefaults(d *libvirtxml.Domain, filename string) {
+func addDefaultXml(d *libvirtxml.Domain, filename string) {
 	fullname := "resources/xml/" + filename + ".xml"
 	pfile, err := resources.ReadFile(fullname)
 	if err != nil {

main.go

@@ -4,7 +4,6 @@ package main
 
 import (
 	"embed"
-	"fmt"
 	"os"
 	"path/filepath"
 	"time"
@@ -106,6 +105,11 @@ func main() {
 		os.Exit(0)
 	}
 
+	if argv.Start != "" {
+		makeDroplet(argv.Start)
+		os.Exit(0)
+	}
+
 	// start the watchdog polling for each hypervisor
 	for _, h := range me.hypers {
 		log.Info("starting polling on", h.pb.Hostname)
@@ -115,40 +119,3 @@ func main() {
 	// sit here
 	startHTTP()
 }
-
-func makeDroplet(start string) {
-	d := findDroplet(start)
-	if d == nil {
-		log.Info("droplet is unknown:", start)
-		os.Exit(0)
-	}
-	log.Info("start droplet here:", d.pb.Hostname)
-	domcfg := makeStandardXml(d)
-
-	fmt.Printf("Virt type %s\n", domcfg.Type)
-	fmt.Printf("Virt name %s\n", domcfg.Name)
-	fmt.Printf("Virt UUID %s\n", domcfg.UUID)
-	fmt.Printf("Virt Memory %d %s\n", domcfg.Memory.Value, domcfg.Memory.Unit)
-
-	// test add some ethernet devices
-	macs := getMacs(domcfg)
-	fmt.Printf("Virt mac addr:%s\n", macs)
-
-	// clearEthernet(domcfg)
-
-	addEthernet(domcfg, "04:44:33:11:22:11", "worldbr")
-	addEthernet(domcfg, "04:44:33:33:44:55", "greenbr")
-
-	// add a check here to make these unique
-	// setRandomMacs(domcfg)
-
-	// print out the final mac addresses
-	macs = getMacs(domcfg)
-	fmt.Printf("Virt mac addr:%s\n", macs)
-
-	qcow := "/home/nfs/" + d.pb.Hostname + ".qcow2"
-	setSimpleDisk(domcfg, qcow)
-
-	writeoutXml(domcfg, "blahcarr")
-	os.Exit(0)
-}

start.go

@@ -0,0 +1,55 @@
+// Copyright 2024 WIT.COM Inc Licensed GPL 3.0
+
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"go.wit.com/log"
+	"libvirt.org/go/libvirtxml"
+)
+
+func makeDroplet(start string) {
+	tmp := findDroplet(start)
+	d := tmp.pb
+	if d == nil {
+		log.Info("droplet is unknown:", start)
+		os.Exit(0)
+	}
+	log.Info("start droplet here:", d.Hostname)
+	domcfg := &libvirtxml.Domain{}
+
+	addDefaultXml(domcfg, "standard.x86")
+	addDefaultXml(domcfg, "memory")
+	addDefaultXml(domcfg, "network")
+	addDefaultXml(domcfg, "spice")
+	addDefaultXml(domcfg, "qcow")
+
+	domcfg.Type = "kvm"
+	domcfg.Name = d.Hostname
+	domcfg.UUID = d.Uuid
+
+	var i uint
+	i = uint(d.Memory / (1024 * 1024))
+
+	domcfg.Memory.Value = i
+	domcfg.Memory.Unit = "MiB"
+
+	fmt.Printf("Virt Memory %d %s\n", domcfg.Memory.Value, domcfg.Memory.Unit)
+
+	// addEthernet(domcfg, "04:44:33:11:22:11", "worldbr")
+	// addEthernet(domcfg, "04:44:33:33:44:55", "greenbr")
+
+	for _, n := range d.Networks {
+		log.Info("add network", d.Hostname, "mac addr", n.Mac, "interface", n.Name)
+	}
+
+	// add a check here to make these unique
+	// setRandomMacs(domcfg)
+
+	qcow := "/home/nfs/" + d.Hostname + ".qcow2"
+	setSimpleDisk(domcfg, qcow)
+
+	writeoutXml(domcfg, "blahcarr")
+}