Merge pull request #521 from imikushin/ros-install

ros install

cmd/control/cli.go

@@ -59,6 +59,7 @@ func Main() {
 			HideHelp:    true,
 			Subcommands: tlsConfCommands(),
 		},
+		installCommand,
 	}
 
 	app.Run(os.Args)

cmd/control/install.go

@@ -0,0 +1,126 @@
+package control
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"os/exec"
+
+	log "github.com/Sirupsen/logrus"
+
+	"github.com/codegangsta/cli"
+	"github.com/rancherio/os/cmd/power"
+	"github.com/rancherio/os/config"
+	"github.com/rancherio/os/util"
+)
+
+var installCommand = cli.Command{
+	Name:     "install",
+	Usage:    "install RancherOS to disk",
+	HideHelp: true,
+	Action:   installAction,
+	Flags: []cli.Flag{
+		cli.StringFlag{
+			Name:  "image, i",
+			Usage: "install from a certain image",
+		},
+		cli.StringFlag{
+			Name: "install-type, t",
+			Usage: `generic:    (Default) Creates 1 ext4 partition and installs RancherOS
+                        amazon-ebs: Installs RancherOS and sets up PV-GRUB`,
+		},
+		cli.StringFlag{
+			Name:  "cloud-config, c",
+			Usage: "cloud-config yml file - needed for SSH authorized keys",
+		},
+		cli.StringFlag{
+			Name:  "device, d",
+			Usage: "storage device",
+		},
+		cli.BoolFlag{
+			Name:  "force, f",
+			Usage: "[ DANGEROUS! Data loss can happen ] partition/format without prompting",
+		},
+		cli.BoolFlag{
+			Name:  "no-reboot",
+			Usage: "do not reboot after install",
+		},
+	},
+}
+
+func installAction(c *cli.Context) {
+	if c.Args().Present() {
+		log.Fatalf("invalid arguments %v", c.Args())
+	}
+	device := c.String("device")
+	if device == "" {
+		log.Fatal("Can not proceed without -d <dev> specified")
+	}
+
+	image := c.String("image")
+	cfg, err := config.LoadConfig()
+	if err != nil {
+		log.WithFields(log.Fields{"err": err}).Fatal("ros install: failed to load config")
+	}
+	if image == "" {
+		image = cfg.Rancher.Upgrade.Image + ":" + config.VERSION
+	}
+
+	installType := c.String("install-type")
+	if installType == "" {
+		log.Info("No install type specified...defaulting to generic")
+		installType = "generic"
+	}
+
+	cloudConfig := c.String("cloud-config")
+	if cloudConfig == "" {
+		log.Warn("Cloud-config not provided: you might need to provide cloud-config on boot with ssh_authorized_keys")
+	} else {
+		uc := "/opt/user_config.yml"
+		if err := util.FileCopy(cloudConfig, uc); err != nil {
+			log.WithFields(log.Fields{"cloudConfig": cloudConfig}).Fatal("Failed to copy cloud-config")
+		}
+		cloudConfig = uc
+	}
+
+	force := c.Bool("force")
+	reboot := !c.Bool("no-reboot")
+
+	if err := runInstall(cfg, image, installType, cloudConfig, device, force, reboot); err != nil {
+		log.WithFields(log.Fields{"err": err}).Fatal("Failed to run install")
+	}
+}
+
+func runInstall(cfg *config.CloudConfig, image, installType, cloudConfig, device string, force, reboot bool) error {
+	in := bufio.NewReader(os.Stdin)
+
+	fmt.Printf("Installing from %s\n", image)
+
+	if !force {
+		if !yes(in, "Continue") {
+			os.Exit(1)
+		}
+	}
+
+	if installType == "generic" {
+		cmd := exec.Command("system-docker", "run", "--net=host", "--privileged", "--volumes-from=all-volumes",
+			"--entrypoint=/scripts/set-disk-partitions", image, device)
+		cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
+		if err := cmd.Run(); err != nil {
+			return err
+		}
+	}
+	cmd := exec.Command("system-docker", "run", "--net=host", "--privileged", "--volumes-from=user-volumes", image,
+		"-d", device, "-t", installType, "-c", cloudConfig)
+	cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
+	if err := cmd.Run(); err != nil {
+		return err
+	}
+
+	if reboot && yes(in, "Continue with reboot") {
+		log.Info("Rebooting")
+		power.Reboot()
+	}
+
+	return nil
+}

scripts/installer/conf/empty.yml

@@ -0,0 +1,2 @@
+#cloud-config
+{}

scripts/installer/lay-down-os

@@ -19,6 +19,7 @@ do
 done
 
 DIST=${DIST:-/dist}
+CLOUD_CONFIG=${CLOUD_CONFIG:-/scripts/conf/empty.yml}
 BASE_DIR="/mnt/new_img"
 # TODO: Change this to a number so that users can specify.
 # Will need to make it so that our builds and packer APIs remain consistent.

scripts/installer/seed-data

@@ -12,8 +12,9 @@ if [ -z ${BASE_DIR} ]; then
 fi
 
 mkdir -p ${BASE_DIR}/var/lib/rancher/conf/cloud-config.d
-
-cp ${CLOUD_DATA} ${BASE_DIR}/var/lib/rancher/conf/cloud-config.d/
+if [ "$CLOUD_DATA" != "/scripts/conf/empty.yml" ]; then
+    cp ${CLOUD_DATA} ${BASE_DIR}/var/lib/rancher/conf/cloud-config.d/
+fi
 
 for f in ${FILES[@]}; do
     IFS=":" read s d <<< "${f}"

util/util.go

@@ -152,6 +152,25 @@ func RandSeq(n int) string {
 	return string(b)
 }
 
+func FileCopy(src, dest string) (err error) {
+	in, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer func() { err = in.Close() }()
+
+	out, err := os.Create(dest)
+	if err != nil {
+		return err
+	}
+	defer func() { err = out.Close() }()
+
+	if _, err := io.Copy(out, in); err != nil {
+		return err
+	}
+	return
+}
+
 func Convert(from, to interface{}) error {
 	bytes, err := yaml.Marshal(from)
 	if err != nil {