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[exp] metrics over libp2p streams #3110

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[exp] metrics over libp2p streams #3110

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37aeead
feat(libp2phttp): More ergonomic auth
MarcoPolo Nov 21, 2024
0a40e02
feat(exp/metricsserver): Expose metrics over libp2p streams
MarcoPolo Nov 21, 2024
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66 changes: 66 additions & 0 deletions exp/cmd/libp2phttpproxy/main.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,66 @@
package main

import (
"log"
"net/http/httputil"
"net/url"
"os"
"os/signal"
"strings"

"github.com/libp2p/go-libp2p"
libp2phttp "github.com/libp2p/go-libp2p/p2p/http"
"github.com/multiformats/go-multiaddr"
)

func main() {
proxyTarget := os.Getenv("PROXY_TARGET")
if proxyTarget == "" {
log.Fatal("PROXY_TARGET must be set")
}

h, err := libp2p.New(libp2p.ListenAddrStrings(
"/ip4/0.0.0.0/tcp/0",
"/ip4/0.0.0.0/tcp/0",
))
if err != nil {
log.Fatal(err)
}
defer h.Close()

const multiaddrPrefix = "multiaddr:"
if !strings.HasPrefix(proxyTarget, multiaddrPrefix) {
log.Fatalf("PROXY_TARGET must start with %q", multiaddrPrefix)
}

targetUrl, _ := url.Parse(proxyTarget)

httpHost := libp2phttp.Host{
StreamHost: h,
InsecureAllowHTTP: true,
ListenAddrs: []multiaddr.Multiaddr{multiaddr.StringCast("/ip4/0.0.0.0/tcp/5005/http")},
}

// reverse proxy
proxy := &httputil.ReverseProxy{
Rewrite: func(r *httputil.ProxyRequest) {
copiedURL := *targetUrl
r.Out.URL = &copiedURL
},
Transport: &httpHost,
}

httpHost.SetHTTPHandlerAtPath("/http-reverse-proxy/0.0.1", "/", proxy)
go httpHost.Serve()

log.Println("Listening on:")
for _, a := range httpHost.Addrs() {
log.Println(a.Encapsulate(multiaddr.StringCast("/p2p/" + h.ID().String())))
}

// Wait for interrupt signal to stop
intSig := make(chan os.Signal, 1)
signal.Notify(intSig, os.Interrupt)
<-intSig
log.Println("Interrupt signal received, closing host")
}
114 changes: 114 additions & 0 deletions exp/go.mod
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module github.com/libp2p/go-libp2p/exp

go 1.22.1

require (
github.com/ipfs/go-log/v2 v2.5.1
github.com/libp2p/go-libp2p v0.37.0
github.com/prometheus/client_golang v1.20.5
go.uber.org/fx v1.23.0
)

require (
github.com/benbjohnson/clock v1.3.5 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/containerd/cgroups v1.1.0 // indirect
github.com/coreos/go-systemd/v22 v22.5.0 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/davidlazar/go-crypto v0.0.0-20200604182044-b73af7476f6c // indirect
github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
github.com/docker/go-units v0.5.0 // indirect
github.com/elastic/gosigar v0.14.3 // indirect
github.com/flynn/noise v1.1.0 // indirect
github.com/francoispqt/gojay v1.2.13 // indirect
github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
github.com/godbus/dbus/v5 v5.1.0 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/google/gopacket v1.1.19 // indirect
github.com/google/pprof v0.0.0-20241017200806-017d972448fc // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/gorilla/websocket v1.5.3 // indirect
github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
github.com/huin/goupnp v1.3.0 // indirect
github.com/ipfs/go-cid v0.4.1 // indirect
github.com/jackpal/go-nat-pmp v1.0.2 // indirect
github.com/jbenet/go-temp-err-catcher v0.1.0 // indirect
github.com/klauspost/compress v1.17.11 // indirect
github.com/klauspost/cpuid/v2 v2.2.8 // indirect
github.com/koron/go-ssdp v0.0.4 // indirect
github.com/libp2p/go-buffer-pool v0.1.0 // indirect
github.com/libp2p/go-flow-metrics v0.2.0 // indirect
github.com/libp2p/go-libp2p-asn-util v0.4.1 // indirect
github.com/libp2p/go-msgio v0.3.0 // indirect
github.com/libp2p/go-nat v0.2.0 // indirect
github.com/libp2p/go-netroute v0.2.1 // indirect
github.com/libp2p/go-reuseport v0.4.0 // indirect
github.com/libp2p/go-yamux/v4 v4.0.1 // indirect
github.com/marten-seemann/tcp v0.0.0-20210406111302-dfbc87cc63fd // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/miekg/dns v1.1.62 // indirect
github.com/mikioh/tcpinfo v0.0.0-20190314235526-30a79bb1804b // indirect
github.com/mikioh/tcpopt v0.0.0-20190314235656-172688c1accc // indirect
github.com/minio/sha256-simd v1.0.1 // indirect
github.com/mr-tron/base58 v1.2.0 // indirect
github.com/multiformats/go-base32 v0.1.0 // indirect
github.com/multiformats/go-base36 v0.2.0 // indirect
github.com/multiformats/go-multiaddr v0.13.0 // indirect
github.com/multiformats/go-multiaddr-dns v0.4.0 // indirect
github.com/multiformats/go-multiaddr-fmt v0.1.0 // indirect
github.com/multiformats/go-multibase v0.2.0 // indirect
github.com/multiformats/go-multicodec v0.9.0 // indirect
github.com/multiformats/go-multihash v0.2.3 // indirect
github.com/multiformats/go-multistream v0.6.0 // indirect
github.com/multiformats/go-varint v0.0.7 // indirect
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
github.com/onsi/ginkgo/v2 v2.20.2 // indirect
github.com/opencontainers/runtime-spec v1.2.0 // indirect
github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
github.com/pion/datachannel v1.5.9 // indirect
github.com/pion/dtls/v2 v2.2.12 // indirect
github.com/pion/ice/v2 v2.3.36 // indirect
github.com/pion/interceptor v0.1.37 // indirect
github.com/pion/logging v0.2.2 // indirect
github.com/pion/mdns v0.0.12 // indirect
github.com/pion/randutil v0.1.0 // indirect
github.com/pion/rtcp v1.2.14 // indirect
github.com/pion/rtp v1.8.9 // indirect
github.com/pion/sctp v1.8.33 // indirect
github.com/pion/sdp/v3 v3.0.9 // indirect
github.com/pion/srtp/v2 v2.0.20 // indirect
github.com/pion/stun v0.6.1 // indirect
github.com/pion/transport/v2 v2.2.10 // indirect
github.com/pion/turn/v2 v2.1.6 // indirect
github.com/pion/webrtc/v3 v3.3.4 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/prometheus/client_model v0.6.1 // indirect
github.com/prometheus/common v0.60.0 // indirect
github.com/prometheus/procfs v0.15.1 // indirect
github.com/quic-go/qpack v0.5.1 // indirect
github.com/quic-go/quic-go v0.48.1 // indirect
github.com/quic-go/webtransport-go v0.8.1-0.20241018022711-4ac2c9250e66 // indirect
github.com/raulk/go-watchdog v1.3.0 // indirect
github.com/spaolacci/murmur3 v1.1.0 // indirect
github.com/stretchr/testify v1.9.0 // indirect
github.com/wlynxg/anet v0.0.5 // indirect
go.uber.org/dig v1.18.0 // indirect
go.uber.org/mock v0.5.0 // indirect
go.uber.org/multierr v1.11.0 // indirect
go.uber.org/zap v1.27.0 // indirect
golang.org/x/crypto v0.28.0 // indirect
golang.org/x/exp v0.0.0-20241009180824-f66d83c29e7c // indirect
golang.org/x/mod v0.21.0 // indirect
golang.org/x/net v0.30.0 // indirect
golang.org/x/sync v0.8.0 // indirect
golang.org/x/sys v0.26.0 // indirect
golang.org/x/text v0.19.0 // indirect
golang.org/x/tools v0.26.0 // indirect
google.golang.org/protobuf v1.35.1 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
lukechampine.com/blake3 v1.3.0 // indirect
)

replace github.com/libp2p/go-libp2p => ../
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