func (c *InstallCommand) Execute(args []string) error {
versionMsg := "the latest version"
if c.Version != "" {
versionMsg = "version " + c.Version
}
fmt.Printf(`
The install command will make the following changes to your system:
- Create a '.dlite' directory in your home
- Create a %d GiB sparse disk image in the '.dlite' directory
- Download %s of DhyveOS to the '.dlite' directory
- Create a 'config.json' file in the '.dlite' directory
- Create a new SSH key pair in the '.dlite' directory for the vm
- Create a launchd agent in '/Library/LaunchDaemons' used to run the privileged daemon
- Store logs from the daemon in '/Library/Logs'
- Create a launchd agent in '~/Library/LaunchAgents' used to start the privileged daemon under this user's context
`, c.Disk, versionMsg)
fmt.Print("Would you like to continue? (Y/n): ")
reader := bufio.NewReader(os.Stdin)
response, err := reader.ReadString('\n')
if err != nil {
return err
}
response = strings.ToLower(strings.TrimSpace(response))
if response == "n" || response == "no" {
return fmt.Errorf("Aborted install due to user input")
}
if response != "" && response != "y" && response != "yes" {
return fmt.Errorf("Aborted install due to invalid user input")
}
var cfg *config.Config
steps := Steps{
{
"Creating configuration",
func() error {
cfg, err := config.New(os.ExpandEnv("$USER"))
if err != nil {
return err
}
if c.DockerVersion == "" {
latest, err := docker.Latest()
if err != nil {
return err
}
c.DockerVersion = latest
}
if c.Cpus == 0 {
c.Cpus = runtime.NumCPU()
}
cfg.CpuCount = c.Cpus
cfg.DockerVersion = c.DockerVersion
cfg.Uuid = uuid.NewV1().String()
cfg.Memory = c.Memory
cfg.Hostname = c.Hostname
cfg.DockerVersion = c.DockerVersion
cfg.Extra = c.Extra
cfg.DNSServer = c.DNSServer
cfg.DiskSize = c.Disk
cfg.Route = c.Route
return cfg.Save()
},
},
{
"Building disk image",
func() error {
d := disk.New(cfg)
d.Detach()
return d.Create()
},
},
{
"Downloading OS",
func() error {
var vers dliteos.Version
var err error
if c.Version == "" {
vers, err = dliteos.Latest()
} else {
vers, err = dliteos.Specific(c.Version)
}
if err != nil {
return err
}
return dliteos.Download(cfg.Dir, vers)
},
},
{
"Generating SSH key",
func() error {
s := ssh.New(cfg)
return s.Generate()
},
},
}
return Spin(steps)
}