Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 1 | package main |
| 2 | |
| 3 | import ( |
Serge Bazanski | 9778322 | 2021-12-14 16:04:26 +0100 | [diff] [blame] | 4 | "bytes" |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 5 | "crypto/ed25519" |
| 6 | "crypto/rand" |
Lorenz Brun | 7a51019 | 2022-07-04 15:31:38 +0000 | [diff] [blame] | 7 | _ "embed" |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 8 | "encoding/pem" |
Lorenz Brun | 7a51019 | 2022-07-04 15:31:38 +0000 | [diff] [blame] | 9 | "io" |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 10 | "log" |
| 11 | "os" |
| 12 | "path/filepath" |
| 13 | |
| 14 | "github.com/adrg/xdg" |
| 15 | "github.com/spf13/cobra" |
| 16 | |
| 17 | "source.monogon.dev/metropolis/cli/metroctl/core" |
Serge Bazanski | 9778322 | 2021-12-14 16:04:26 +0100 | [diff] [blame] | 18 | "source.monogon.dev/metropolis/cli/pkg/datafile" |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 19 | "source.monogon.dev/metropolis/proto/api" |
| 20 | ) |
| 21 | |
| 22 | var installCmd = &cobra.Command{ |
Lorenz Brun | 7a51019 | 2022-07-04 15:31:38 +0000 | [diff] [blame] | 23 | Short: "Contains subcommands to install Metropolis via different media.", |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 24 | Use: "install", |
| 25 | } |
| 26 | |
Lorenz Brun | 7a51019 | 2022-07-04 15:31:38 +0000 | [diff] [blame] | 27 | var bundlePath = installCmd.PersistentFlags().StringP("bundle", "b", "", "Path to the Metropolis bundle to be installed") |
| 28 | |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 29 | var genusbCmd = &cobra.Command{ |
Serge Bazanski | 9778322 | 2021-12-14 16:04:26 +0100 | [diff] [blame] | 30 | Use: "genusb target", |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 31 | Short: "Generates a Metropolis installer disk or image.", |
Lorenz Brun | 7a51019 | 2022-07-04 15:31:38 +0000 | [diff] [blame] | 32 | Example: "metroctl install --bundle=metropolis-v0.1.zip genusb /dev/sdx", |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 33 | Args: cobra.ExactArgs(1), // One positional argument: the target |
| 34 | Run: doGenUSB, |
| 35 | } |
| 36 | |
| 37 | // A PEM block type for a Metropolis initial owner private key |
| 38 | const ownerKeyType = "METROPOLIS INITIAL OWNER PRIVATE KEY" |
| 39 | |
Lorenz Brun | 7a51019 | 2022-07-04 15:31:38 +0000 | [diff] [blame] | 40 | //go:embed metropolis/installer/kernel.efi |
| 41 | var installer []byte |
| 42 | |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 43 | func doGenUSB(cmd *cobra.Command, args []string) { |
Lorenz Brun | 7a51019 | 2022-07-04 15:31:38 +0000 | [diff] [blame] | 44 | var bundleReader io.Reader |
| 45 | var bundleSize uint64 |
| 46 | if bundlePath == nil || *bundlePath == "" { |
| 47 | // Attempt Bazel runfile bundle if not explicitly set |
| 48 | bundle, err := datafile.Get("metropolis/node/bundle.zip") |
| 49 | if err != nil { |
| 50 | log.Fatalf("No bundle specified and fallback to runfiles failed: %v", err) |
| 51 | } |
| 52 | bundleReader = bytes.NewReader(bundle) |
| 53 | bundleSize = uint64(len(bundle)) |
| 54 | } else { |
| 55 | // Load bundle from specified path |
| 56 | bundle, err := os.Open(*bundlePath) |
| 57 | if err != nil { |
| 58 | log.Fatalf("Failed to open specified bundle: %v", err) |
| 59 | } |
| 60 | bundleStat, err := bundle.Stat() |
| 61 | if err != nil { |
| 62 | log.Fatalf("Failed to stat specified bundle: %v", err) |
| 63 | } |
| 64 | bundleReader = bundle |
| 65 | bundleSize = uint64(bundleStat.Size()) |
| 66 | } |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 67 | |
| 68 | // TODO(lorenz): Have a key management story for this |
| 69 | if err := os.MkdirAll(filepath.Join(xdg.ConfigHome, "metroctl"), 0700); err != nil { |
| 70 | log.Fatalf("Failed to create config directory: %v", err) |
| 71 | } |
| 72 | var ownerPublicKey ed25519.PublicKey |
Lorenz Brun | 764a2de | 2021-11-22 16:26:36 +0100 | [diff] [blame] | 73 | ownerPrivateKeyPEM, err := os.ReadFile(filepath.Join(xdg.ConfigHome, "metroctl/owner-key.pem")) |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 74 | if os.IsNotExist(err) { |
| 75 | pub, priv, err := ed25519.GenerateKey(rand.Reader) |
| 76 | if err != nil { |
| 77 | log.Fatalf("Failed to generate owner private key: %v", err) |
| 78 | } |
| 79 | pemPriv := pem.EncodeToMemory(&pem.Block{Type: ownerKeyType, Bytes: priv}) |
Lorenz Brun | 764a2de | 2021-11-22 16:26:36 +0100 | [diff] [blame] | 80 | if err := os.WriteFile(filepath.Join(xdg.ConfigHome, "metroctl/owner-key.pem"), pemPriv, 0600); err != nil { |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 81 | log.Fatalf("Failed to store owner private key: %v", err) |
| 82 | } |
| 83 | ownerPublicKey = pub |
| 84 | } else if err != nil { |
| 85 | log.Fatalf("Failed to load owner private key: %v", err) |
| 86 | } else { |
| 87 | block, _ := pem.Decode(ownerPrivateKeyPEM) |
| 88 | if block == nil { |
| 89 | log.Fatalf("owner-key.pem contains invalid PEM") |
| 90 | } |
| 91 | if block.Type != ownerKeyType { |
| 92 | log.Fatalf("owner-key.pem contains a PEM block that's not a %v", ownerKeyType) |
| 93 | } |
| 94 | if len(block.Bytes) != ed25519.PrivateKeySize { |
| 95 | log.Fatal("owner-key.pem contains non-Ed25519 key") |
| 96 | } |
| 97 | ownerPrivateKey := ed25519.PrivateKey(block.Bytes) |
| 98 | ownerPublicKey = ownerPrivateKey.Public().(ed25519.PublicKey) |
| 99 | } |
| 100 | |
| 101 | // TODO(lorenz): This can only bootstrap right now. As soon as @serge's role |
| 102 | // management has stabilized we can replace this with a proper |
| 103 | // implementation. |
| 104 | params := &api.NodeParameters{ |
| 105 | Cluster: &api.NodeParameters_ClusterBootstrap_{ |
| 106 | ClusterBootstrap: &api.NodeParameters_ClusterBootstrap{ |
| 107 | OwnerPublicKey: ownerPublicKey, |
| 108 | }, |
| 109 | }, |
| 110 | } |
| 111 | |
| 112 | installerImageArgs := core.MakeInstallerImageArgs{ |
| 113 | TargetPath: args[0], |
Lorenz Brun | 7a51019 | 2022-07-04 15:31:38 +0000 | [diff] [blame] | 114 | Installer: bytes.NewReader(installer), |
Serge Bazanski | 9778322 | 2021-12-14 16:04:26 +0100 | [diff] [blame] | 115 | InstallerSize: uint64(len(installer)), |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 116 | NodeParams: params, |
Lorenz Brun | 7a51019 | 2022-07-04 15:31:38 +0000 | [diff] [blame] | 117 | Bundle: bundleReader, |
| 118 | BundleSize: bundleSize, |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 119 | } |
| 120 | |
Serge Bazanski | 9778322 | 2021-12-14 16:04:26 +0100 | [diff] [blame] | 121 | log.Printf("Generating installer image (this can take a while, see issues/92).") |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 122 | if err := core.MakeInstallerImage(installerImageArgs); err != nil { |
| 123 | log.Fatalf("Failed to create installer: %v", err) |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | func init() { |
| 128 | rootCmd.AddCommand(installCmd) |
| 129 | installCmd.AddCommand(genusbCmd) |
Lorenz Brun | e657310 | 2021-11-02 14:15:37 +0100 | [diff] [blame] | 130 | } |