367 lines
9.9 KiB
Go
367 lines
9.9 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package main
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import (
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"context"
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"crypto/rand"
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"fmt"
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"net"
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"os"
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"path/filepath"
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"github.com/btcsuite/btcutil/base58"
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"github.com/minio/cli"
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minio "github.com/minio/minio/cmd"
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"github.com/spf13/cobra"
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"github.com/zeebo/errs"
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"go.uber.org/zap"
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"storj.io/common/fpath"
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"storj.io/common/storj"
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"storj.io/storj/cmd/internal/wizard"
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libuplink "storj.io/storj/lib/uplink"
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"storj.io/storj/pkg/cfgstruct"
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"storj.io/storj/pkg/miniogw"
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"storj.io/storj/pkg/process"
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"storj.io/storj/private/version"
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"storj.io/storj/private/version/checker"
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"storj.io/storj/uplink"
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)
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// GatewayFlags configuration flags
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type GatewayFlags struct {
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NonInteractive bool `help:"disable interactive mode" default:"false" setup:"true"`
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Server miniogw.ServerConfig
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Minio miniogw.MinioConfig
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uplink.Config
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Version checker.Config
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PBKDFConcurrency int `help:"Unfortunately, up until v0.26.2, keys generated from passphrases depended on the number of cores the local CPU had. If you entered a passphrase with v0.26.2 earlier, you'll want to set this number to the number of CPU cores your computer had at the time. This flag may go away in the future. For new installations the default value is highly recommended." default:"0"`
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}
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var (
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// Error is the default gateway setup errs class
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Error = errs.Class("gateway setup error")
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// rootCmd represents the base gateway command when called without any subcommands
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rootCmd = &cobra.Command{
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Use: "gateway",
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Short: "The Storj client-side S3 gateway",
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Args: cobra.OnlyValidArgs,
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}
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setupCmd = &cobra.Command{
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Use: "setup",
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Short: "Create a gateway config file",
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RunE: cmdSetup,
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Annotations: map[string]string{"type": "setup"},
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}
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runCmd = &cobra.Command{
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Use: "run",
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Short: "Run the S3 gateway",
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RunE: cmdRun,
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}
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setupCfg GatewayFlags
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runCfg GatewayFlags
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confDir string
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identityDir string
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)
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func init() {
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defaultConfDir := fpath.ApplicationDir("storj", "gateway")
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defaultIdentityDir := fpath.ApplicationDir("storj", "identity", "gateway")
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cfgstruct.SetupFlag(zap.L(), rootCmd, &confDir, "config-dir", defaultConfDir, "main directory for gateway configuration")
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cfgstruct.SetupFlag(zap.L(), rootCmd, &identityDir, "identity-dir", defaultIdentityDir, "main directory for gateway identity credentials")
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defaults := cfgstruct.DefaultsFlag(rootCmd)
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rootCmd.AddCommand(runCmd)
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rootCmd.AddCommand(setupCmd)
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process.Bind(runCmd, &runCfg, defaults, cfgstruct.ConfDir(confDir), cfgstruct.IdentityDir(identityDir))
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process.Bind(setupCmd, &setupCfg, defaults, cfgstruct.ConfDir(confDir), cfgstruct.IdentityDir(identityDir), cfgstruct.SetupMode())
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}
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func cmdSetup(cmd *cobra.Command, args []string) (err error) {
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setupDir, err := filepath.Abs(confDir)
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if err != nil {
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return Error.Wrap(err)
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}
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valid, _ := fpath.IsValidSetupDir(setupDir)
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if !valid {
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return Error.New("gateway configuration already exists (%v)", setupDir)
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}
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err = os.MkdirAll(setupDir, 0700)
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if err != nil {
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return Error.Wrap(err)
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}
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overrides := map[string]interface{}{}
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accessKeyFlag := cmd.Flag("minio.access-key")
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if !accessKeyFlag.Changed {
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accessKey, err := generateKey()
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if err != nil {
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return err
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}
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overrides[accessKeyFlag.Name] = accessKey
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}
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secretKeyFlag := cmd.Flag("minio.secret-key")
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if !secretKeyFlag.Changed {
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secretKey, err := generateKey()
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if err != nil {
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return err
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}
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overrides[secretKeyFlag.Name] = secretKey
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}
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if setupCfg.NonInteractive {
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return setupCfg.nonInteractive(cmd, setupDir, overrides)
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}
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return setupCfg.interactive(cmd, setupDir, overrides)
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}
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func cmdRun(cmd *cobra.Command, args []string) (err error) {
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address := runCfg.Server.Address
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host, port, err := net.SplitHostPort(address)
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if err != nil {
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return err
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}
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if host == "" {
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address = net.JoinHostPort("127.0.0.1", port)
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}
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ctx, _ := process.Ctx(cmd)
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if err := process.InitMetrics(ctx, zap.L(), nil, ""); err != nil {
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zap.S().Warn("Failed to initialize telemetry batcher: ", err)
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}
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err = checker.CheckProcessVersion(ctx, zap.L(), runCfg.Version, version.Build, "Gateway")
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if err != nil {
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return err
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}
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zap.S().Infof("Starting Storj S3-compatible gateway!\n\n")
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zap.S().Infof("Endpoint: %s\n", address)
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zap.S().Infof("Access key: %s\n", runCfg.Minio.AccessKey)
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zap.S().Infof("Secret key: %s\n", runCfg.Minio.SecretKey)
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err = checkCfg(ctx)
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if err != nil {
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zap.S().Warn("Failed to contact Satellite. Perhaps your configuration is invalid?")
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return err
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}
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return runCfg.Run(ctx)
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}
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func generateKey() (key string, err error) {
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var buf [20]byte
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_, err = rand.Read(buf[:])
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if err != nil {
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return "", Error.Wrap(err)
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}
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return base58.Encode(buf[:]), nil
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}
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func checkCfg(ctx context.Context) (err error) {
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proj, err := runCfg.openProject(ctx)
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if err != nil {
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return err
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}
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defer func() { err = errs.Combine(err, proj.Close()) }()
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_, err = proj.ListBuckets(ctx, &storj.BucketListOptions{Direction: storj.Forward})
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return err
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}
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// Run starts a Minio Gateway given proper config
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func (flags GatewayFlags) Run(ctx context.Context) (err error) {
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err = minio.RegisterGatewayCommand(cli.Command{
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Name: "storj",
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Usage: "Storj",
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Action: func(cliCtx *cli.Context) error {
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return flags.action(ctx, cliCtx)
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},
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HideHelpCommand: true,
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})
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if err != nil {
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return err
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}
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// TODO(jt): Surely there is a better way. This is so upsetting
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err = os.Setenv("MINIO_ACCESS_KEY", flags.Minio.AccessKey)
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if err != nil {
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return err
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}
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err = os.Setenv("MINIO_SECRET_KEY", flags.Minio.SecretKey)
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if err != nil {
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return err
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}
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minio.Main([]string{"storj", "gateway", "storj",
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"--address", flags.Server.Address, "--config-dir", flags.Minio.Dir, "--quiet"})
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return errs.New("unexpected minio exit")
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}
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func (flags GatewayFlags) action(ctx context.Context, cliCtx *cli.Context) (err error) {
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gw, err := flags.NewGateway(ctx)
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if err != nil {
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return err
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}
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minio.StartGateway(cliCtx, miniogw.Logging(gw, zap.L()))
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return errs.New("unexpected minio exit")
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}
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// NewGateway creates a new minio Gateway
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func (flags GatewayFlags) NewGateway(ctx context.Context) (gw minio.Gateway, err error) {
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scope, err := flags.GetScope()
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if err != nil {
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return nil, err
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}
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project, err := flags.openProject(ctx)
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if err != nil {
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return nil, err
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}
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return miniogw.NewStorjGateway(
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project,
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scope.EncryptionAccess,
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storj.CipherSuite(flags.Enc.PathType),
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flags.GetEncryptionParameters(),
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flags.GetRedundancyScheme(),
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flags.Client.SegmentSize,
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), nil
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}
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func (flags *GatewayFlags) newUplink(ctx context.Context) (*libuplink.Uplink, error) {
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// Transform the gateway config flags to the libuplink config object
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libuplinkCfg := &libuplink.Config{}
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libuplinkCfg.Volatile.Log = zap.L()
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libuplinkCfg.Volatile.MaxInlineSize = flags.Client.MaxInlineSize
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libuplinkCfg.Volatile.MaxMemory = flags.RS.MaxBufferMem
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libuplinkCfg.Volatile.PeerIDVersion = flags.TLS.PeerIDVersions
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libuplinkCfg.Volatile.TLS.SkipPeerCAWhitelist = !flags.TLS.UsePeerCAWhitelist
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libuplinkCfg.Volatile.TLS.PeerCAWhitelistPath = flags.TLS.PeerCAWhitelistPath
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libuplinkCfg.Volatile.DialTimeout = flags.Client.DialTimeout
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libuplinkCfg.Volatile.PBKDFConcurrency = flags.PBKDFConcurrency
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return libuplink.NewUplink(ctx, libuplinkCfg)
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}
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func (flags GatewayFlags) openProject(ctx context.Context) (*libuplink.Project, error) {
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scope, err := flags.GetScope()
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if err != nil {
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return nil, Error.Wrap(err)
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}
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// TODO(jeff): this leaks the uplink and project :(
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uplink, err := flags.newUplink(ctx)
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if err != nil {
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return nil, Error.Wrap(err)
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}
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project, err := uplink.OpenProject(ctx, scope.SatelliteAddr, scope.APIKey)
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if err != nil {
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return nil, Error.Wrap(err)
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}
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return project, nil
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}
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// interactive creates the configuration of the gateway interactively.
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func (flags GatewayFlags) interactive(cmd *cobra.Command, setupDir string, overrides map[string]interface{}) error {
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ctx, _ := process.Ctx(cmd)
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satelliteAddress, err := wizard.PromptForSatellite(cmd)
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if err != nil {
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return Error.Wrap(err)
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}
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apiKeyString, err := wizard.PromptForAPIKey()
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if err != nil {
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return Error.Wrap(err)
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}
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apiKey, err := libuplink.ParseAPIKey(apiKeyString)
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if err != nil {
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return Error.Wrap(err)
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}
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passphrase, err := wizard.PromptForEncryptionPassphrase()
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if err != nil {
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return Error.Wrap(err)
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}
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uplink, err := flags.newUplink(ctx)
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if err != nil {
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return Error.Wrap(err)
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}
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defer func() { err = errs.Combine(err, uplink.Close()) }()
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project, err := uplink.OpenProject(ctx, satelliteAddress, apiKey)
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if err != nil {
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return Error.Wrap(err)
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}
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defer func() { err = errs.Combine(err, project.Close()) }()
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key, err := project.SaltedKeyFromPassphrase(ctx, passphrase)
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if err != nil {
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return Error.Wrap(err)
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}
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scopeData, err := (&libuplink.Scope{
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SatelliteAddr: satelliteAddress,
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APIKey: apiKey,
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EncryptionAccess: libuplink.NewEncryptionAccessWithDefaultKey(*key),
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}).Serialize()
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if err != nil {
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return Error.Wrap(err)
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}
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overrides["scope"] = scopeData
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err = process.SaveConfig(cmd, filepath.Join(setupDir, "config.yaml"),
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process.SaveConfigWithOverrides(overrides),
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process.SaveConfigRemovingDeprecated())
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if err != nil {
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return Error.Wrap(err)
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}
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fmt.Println(`
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Your S3 Gateway is configured and ready to use!
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Some things to try next:
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* See http://documentation.tardigrade.io/api-reference/s3-gateway for some example commands`)
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return nil
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}
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// nonInteractive creates the configuration of the gateway non-interactively.
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func (flags GatewayFlags) nonInteractive(cmd *cobra.Command, setupDir string, overrides map[string]interface{}) error {
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// ensure we're using the scope for the setup
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scope, err := setupCfg.GetScope()
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if err != nil {
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return err
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}
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scopeData, err := scope.Serialize()
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if err != nil {
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return err
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}
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overrides["scope"] = scopeData
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return Error.Wrap(process.SaveConfig(cmd, filepath.Join(setupDir, "config.yaml"),
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process.SaveConfigWithOverrides(overrides),
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process.SaveConfigRemovingDeprecated()))
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}
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func main() {
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process.Exec(rootCmd)
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}
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