84 lines
2.2 KiB
Go
84 lines
2.2 KiB
Go
package main
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import (
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"fmt"
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"math/rand"
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"sync"
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"github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"mkvm/libvirtx"
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)
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var (
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wg sync.WaitGroup
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rootCmd = cobra.Command{
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Use: "mkvm name [name [name]]",
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Short: "create virtual machine(s) via libvirt",
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Args: cobra.MinimumNArgs(1),
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Run: func(cmd *cobra.Command, args []string) {
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logrus.SetLevel(logrus.DebugLevel)
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conn, err := libvirtx.New()
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if err != nil {
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logrus.WithError(err).Fatal("error connecting to libvirt")
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return
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}
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defer conn.Close()
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network, err := getNetwork(conn)
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if err != nil {
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logrus.WithError(err).Fatal("error finding requested network")
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}
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serverBindIP := network.IPs[0].Address
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port := rand.Intn(65535-1025) + 1025
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serverBind := fmt.Sprintf("%s:%d", serverBindIP, port)
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go runHTTPServer(serverBind)
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for i, name := range args {
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metadataURL := fmt.Sprintf("http://%s/%d", serverBind, i)
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if err := buildCloudConfig(i, name, metadataURL); err != nil {
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logrus.WithError(err).WithField("vm", name).Error("error building cloudconfig for vm")
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continue
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}
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wg.Add(1)
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if err := mkvm(conn, metadataURL, name); err != nil {
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logrus.WithError(err).Error("unexpected error building VM")
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wg.Done()
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}
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}
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logrus.Info("waiting for VM(s) to finish provisioning")
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wg.Wait()
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},
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}
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argMemoryMB int
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argCPUs int
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argImage string
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argDiskSizeGB int
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// cloudinit args
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argSSHKeys []string
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argPackages []string
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)
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func main() {
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if err := rootCmd.Execute(); err != nil {
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panic(err)
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}
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}
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func init() {
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rootCmd.Flags().IntVarP(&argMemoryMB, "memory", "m", 1024, "amount of memory (in MB) to assign to the VM")
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rootCmd.Flags().IntVarP(&argCPUs, "cpu", "c", 2, "the number of vCPU cores to assign to the VM")
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rootCmd.Flags().StringVarP(&argImage, "image", "", "https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-amd64.qcow2", "URL of the image to download")
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rootCmd.Flags().IntVarP(&argDiskSizeGB, "disk", "d", 25, "disk size (in GB)")
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rootCmd.Flags().StringArrayVarP(&argSSHKeys, "ssh-keys", "s", nil, "SSH key(s) authorzed to access the VM")
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rootCmd.Flags().StringArrayVarP(&argPackages, "packages", "p", nil, "packages to install on the VM")
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}
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