LoadBalancer for bitswap (and later, more of libp2p) #786
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/rand" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| lcli "github.com/filecoin-project/lotus/cli" | ||
| "github.com/libp2p/go-libp2p" | ||
| crypto "github.com/libp2p/go-libp2p-core/crypto" | ||
| "github.com/libp2p/go-libp2p-core/host" | ||
| "github.com/libp2p/go-libp2p-core/network" | ||
| peer "github.com/libp2p/go-libp2p-core/peer" | ||
| "github.com/libp2p/go-libp2p/p2p/muxer/mplex" | ||
| "github.com/libp2p/go-libp2p/p2p/muxer/yamux" | ||
| quic "github.com/libp2p/go-libp2p/p2p/transport/quic" | ||
| "github.com/libp2p/go-libp2p/p2p/transport/tcp" | ||
| "github.com/urfave/cli/v2" | ||
| ) | ||
|
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| func configureRepo(ctx context.Context, cfgDir string, createIfNotExist bool) (peer.ID, crypto.PrivKey, error) { | ||
| if cfgDir == "" { | ||
| return "", nil, fmt.Errorf("dataDir must be set") | ||
| } | ||
|
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| if err := os.MkdirAll(cfgDir, 0744); err != nil { | ||
| return "", nil, err | ||
| } | ||
|
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| peerkey, err := loadPeerKey(cfgDir, createIfNotExist) | ||
| if err != nil { | ||
| return "", nil, err | ||
| } | ||
|
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| selfPid, err := peer.IDFromPrivateKey(peerkey) | ||
| if err != nil { | ||
| return "", nil, err | ||
| } | ||
|
|
||
| return selfPid, peerkey, nil | ||
| } | ||
|
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| func setupHost(ctx context.Context, cfgDir string, port int) (host.Host, error) { | ||
| _, peerKey, err := configureRepo(ctx, cfgDir, false) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return libp2p.New( | ||
| libp2p.ListenAddrStrings( | ||
| fmt.Sprintf("/ip4/0.0.0.0/tcp/%d", port), | ||
| fmt.Sprintf("/ip4/0.0.0.0/udp/%d/quic", port), | ||
| ), | ||
| libp2p.Transport(tcp.NewTCPTransport), | ||
| libp2p.Transport(quic.NewTransport), | ||
| libp2p.Muxer("/mplex/6.7.0", mplex.DefaultTransport), | ||
| libp2p.Muxer("/yamux/1.0.0", yamux.DefaultTransport), | ||
| libp2p.Identity(peerKey), | ||
| libp2p.ResourceManager(network.NullResourceManager), | ||
| ) | ||
| } | ||
|
|
||
| func loadPeerKey(cfgDir string, createIfNotExists bool) (crypto.PrivKey, error) { | ||
| var peerkey crypto.PrivKey | ||
| keyPath := filepath.Join(cfgDir, "libp2p.key") | ||
| keyFile, err := os.ReadFile(keyPath) | ||
| if err != nil { | ||
| if !os.IsNotExist(err) { | ||
| return nil, err | ||
| } | ||
| if os.IsNotExist(err) && !createIfNotExists { | ||
| return nil, err | ||
| } | ||
| log.Infof("Generating new peer key...") | ||
|
|
||
| key, _, err := crypto.GenerateEd25519Key(rand.Reader) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| peerkey = key | ||
|
|
||
| data, err := crypto.MarshalPrivateKey(key) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| if err := os.WriteFile(keyPath, data, 0600); err != nil { | ||
| return nil, err | ||
| } | ||
| } else { | ||
| key, err := crypto.UnmarshalPrivateKey(keyFile) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| peerkey = key | ||
| } | ||
|
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||
| if peerkey == nil { | ||
| panic("sanity check: peer key is uninitialized") | ||
| } | ||
|
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| return peerkey, nil | ||
| } | ||
|
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| var initCmd = &cli.Command{ | ||
| Name: "init", | ||
| Usage: "Init booster-bitswap config", | ||
| Before: before, | ||
| Flags: []cli.Flag{}, | ||
| Action: func(cctx *cli.Context) error { | ||
|
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| ctx := lcli.ReqContext(cctx) | ||
|
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| repoDir := cctx.String(FlagRepo.Name) | ||
|
|
||
| peerID, _, err := configureRepo(ctx, repoDir, true) | ||
| fmt.Println(peerID) | ||
| return err | ||
| }, | ||
| } | ||
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Suggest changing this error message to `FlagRepo.name + " is a required flag"