improve local testnet (#1903)

go.mod

@@ -7,6 +7,7 @@ replace github.com/docker/docker => github.com/docker/docker v20.10.3-0.20220224
 require (
 	github.com/Microsoft/go-winio v0.6.1
 	github.com/andybalholm/brotli v1.1.0
+	github.com/codeclysm/extract/v3 v3.1.1
 	github.com/deckarep/golang-set/v2 v2.6.0
 	github.com/dgraph-io/ristretto v0.1.1
 	github.com/docker/docker v25.0.4+incompatible
@@ -102,11 +103,14 @@ require (
 	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb // indirect
 	github.com/gorilla/mux v1.8.1 // indirect
+	github.com/h2non/filetype v1.1.3 // indirect
 	github.com/holiman/billy v0.0.0-20240216141850-2abb0c79d3c4 // indirect
 	github.com/holiman/bloomfilter/v2 v2.0.3 // indirect
 	github.com/huin/goupnp v1.3.0 // indirect
 	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/juju/errors v0.0.0-20181118221551-089d3ea4e4d5 // indirect
+	github.com/juju/loggo v1.0.0 // indirect
 	github.com/klauspost/compress v1.17.7 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
@@ -145,6 +149,7 @@ require (
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/tyler-smith/go-bip39 v1.1.0 // indirect
 	github.com/ugorji/go/codec v1.2.12 // indirect
+	github.com/ulikunitz/xz v0.5.11 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20240312152122-5f08fbb34913 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
@@ -155,6 +160,7 @@ require (
 	golang.org/x/text v0.14.0 // indirect
 	golang.org/x/tools v0.20.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240318140521-94a12d6c2237 // indirect
+	gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22 // indirect
 	gopkg.in/square/go-jose.v2 v2.6.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	gotest.tools/v3 v3.5.1 // indirect

go.sum

@@ -13,6 +13,8 @@ github.com/allegro/bigcache v1.2.1 h1:hg1sY1raCwic3Vnsvje6TT7/pnZba83LeFck5NrFKS
 github.com/allegro/bigcache v1.2.1/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
 github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
 github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
+github.com/arduino/go-paths-helper v1.2.0 h1:qDW93PR5IZUN/jzO4rCtexiwF8P4OIcOmcSgAYLZfY4=
+github.com/arduino/go-paths-helper v1.2.0/go.mod h1:HpxtKph+g238EJHq4geEPv9p+gl3v5YYu35Yb+w31Ck=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bits-and-blooms/bitset v1.13.0 h1:bAQ9OPNFYbGHV6Nez0tmNI0RiEu7/hxlYJRUA0wFAVE=
@@ -49,6 +51,8 @@ github.com/cockroachdb/redact v1.1.5 h1:u1PMllDkdFfPWaNGMyLD1+so+aq3uUItthCFqzwP
 github.com/cockroachdb/redact v1.1.5/go.mod h1:BVNblN9mBWFyMyqK1k3AAiSxhvhfK2oOZZ2lK+dpvRg=
 github.com/cockroachdb/tokenbucket v0.0.0-20230807174530-cc333fc44b06 h1:zuQyyAKVxetITBuuhv3BI9cMrmStnpT18zmgmTxunpo=
 github.com/cockroachdb/tokenbucket v0.0.0-20230807174530-cc333fc44b06/go.mod h1:7nc4anLGjupUW/PeY5qiNYsdNXj7zopG+eqsS7To5IQ=
+github.com/codeclysm/extract/v3 v3.1.1 h1:iHZtdEAwSTqPrd+1n4jfhr1qBhUWtHlMTjT90+fJVXg=
+github.com/codeclysm/extract/v3 v3.1.1/go.mod h1:ZJi80UG2JtfHqJI+lgJSCACttZi++dHxfWuPaMhlOfQ=
 github.com/consensys/bavard v0.1.13 h1:oLhMLOFGTLdlda/kma4VOJazblc7IM5y5QPd2A/YjhQ=
 github.com/consensys/bavard v0.1.13/go.mod h1:9ItSMtA/dXMAiL7BG6bqW2m3NdSEObYWoH223nGHukI=
 github.com/consensys/gnark-crypto v0.12.1 h1:lHH39WuuFgVHONRl3J0LRBtuYdQTumFSDtJF7HpyG8M=
@@ -184,6 +188,8 @@ github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
 github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
 github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY=
 github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=
+github.com/h2non/filetype v1.1.3 h1:FKkx9QbD7HR/zjK1Ia5XiBsq9zdLi5Kf3zGyFTAFkGg=
+github.com/h2non/filetype v1.1.3/go.mod h1:319b3zT68BvV+WRj7cwy856M2ehB3HqNOt6sy1HndBY=
 github.com/hashicorp/go-bexpr v0.1.14 h1:uKDeyuOhWhT1r5CiMTjdVY4Aoxdxs6EtwgTGnlosyp4=
 github.com/hashicorp/go-bexpr v0.1.14/go.mod h1:gN7hRKB3s7yT+YvTdnhZVLTENejvhlkZ8UE4YVBS+Q8=
 github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
@@ -203,6 +209,13 @@ github.com/jolestar/go-commons-pool/v2 v2.1.2 h1:E+XGo58F23t7HtZiC/W6jzO2Ux2IccS
 github.com/jolestar/go-commons-pool/v2 v2.1.2/go.mod h1:r4NYccrkS5UqP1YQI1COyTZ9UjPJAAGTUxzcsK1kqhY=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/juju/ansiterm v0.0.0-20180109212912-720a0952cc2a/go.mod h1:UJSiEoRfvx3hP73CvoARgeLjaIOjybY9vj8PUPPFGeU=
+github.com/juju/errors v0.0.0-20181118221551-089d3ea4e4d5 h1:rhqTjzJlm7EbkELJDKMTU7udov+Se0xZkWmugr6zGok=
+github.com/juju/errors v0.0.0-20181118221551-089d3ea4e4d5/go.mod h1:W54LbzXuIE0boCoNJfwqpmkKJ1O4TCTZMetAt6jGk7Q=
+github.com/juju/loggo v1.0.0 h1:Y6ZMQOGR9Aj3BGkiWx7HBbIx6zNwNkxhVNOHU2i1bl0=
+github.com/juju/loggo v1.0.0/go.mod h1:NIXFioti1SmKAlKNuUwbMenNdef59IF52+ZzuOmHYkg=
+github.com/juju/testing v0.0.0-20200510222523-6c8c298c77a0 h1:+WWUkhnTjV6RNOxkcwk79qrjeyHEHvBzlneueBsatX4=
+github.com/juju/testing v0.0.0-20200510222523-6c8c298c77a0/go.mod h1:hpGvhGHPVbNBraRLZEhoQwFLMrjK8PSlO4D3nDjKYXo=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/klauspost/compress v1.17.7 h1:ehO88t2UGzQK66LMdE8tibEd1ErmzZjNEqWkjLAKQQg=
@@ -223,8 +236,11 @@ github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
 github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
+github.com/lunixbochs/vtclean v0.0.0-20160125035106-4fbf7632a2c6/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
+github.com/mattn/go-colorable v0.0.6/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.0-20160806122752-66b8e73f3f5c/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
@@ -341,6 +357,8 @@ github.com/tyler-smith/go-bip39 v1.1.0 h1:5eUemwrMargf3BSLRRCalXT93Ns6pQJIjYQN2n
 github.com/tyler-smith/go-bip39 v1.1.0/go.mod h1:gUYDtqQw1JS3ZJ8UWVcGTGqqr6YIN3CWg+kkNaLt55U=
 github.com/ugorji/go/codec v1.2.12 h1:9LC83zGrHhuUA9l16C9AHXAqEV/2wBQ4nkvumAE65EE=
 github.com/ugorji/go/codec v1.2.12/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
+github.com/ulikunitz/xz v0.5.11 h1:kpFauv27b6ynzBNT/Xy+1k+fK4WswhN/6PN5WhFAGw8=
+github.com/ulikunitz/xz v0.5.11/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14=
 github.com/urfave/cli/v2 v2.27.1 h1:8xSQ6szndafKVRmfyeUMxkNUJQMjL1F2zmsZ+qHpfho=
 github.com/urfave/cli/v2 v2.27.1/go.mod h1:8qnjx1vcq5s2/wpsqoZFndg2CE5tNFyrTvS6SinrnYQ=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
@@ -445,9 +463,12 @@ google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2
 google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
 google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20160105164936-4f90aeace3a2/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22 h1:VpOs+IwYnYBaFnrNAeB8UUWtL3vEUnzSCL1nVjPhqrw=
+gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22/go.mod h1:yeKp02qBN3iKW1OzL3MGk2IdtZzaj7SFntXj72NppTA=
 gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
 gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
 gopkg.in/square/go-jose.v2 v2.6.0 h1:NGk74WTnPKBNUhNzQX7PYcTLUjoq7mzKk2OKbvwk2iI=

integration/eth2network/build_geth_binary.sh

@@ -4,12 +4,14 @@
 # This script downloads and builds geth from source
 # Requires to specify the version to clone
 #
+echo "build geth binary"
 
 help_and_exit() {
     echo ""
-    echo "Usage: $(basename "${0}") --version=v1.14.0 "
+    echo "Usage: $(basename "${0}") --version=v1.14.0 --output=path_to_output"
     echo ""
     echo "  version       *Required* Set the version of geth to build"
+    echo "  output        *Required* Where to copy the binary"
     echo ""
     echo ""
     exit 1  # Exit with error explicitly
@@ -24,9 +26,6 @@ build_path="${script_path}/../.build"
 geth_repo_path="${build_path}/geth_repo"
 geth_repo_bin_path="${geth_repo_path}/build/bin/geth"
 
-# Define defaults
-geth_path="${build_path}/eth2_bin"
-
 # Fetch options
 for argument in "$@"
 do
@@ -35,6 +34,7 @@ do
 
     case "$key" in
             --version)          geth_version=${value} ;;
+            --output)           geth_path=${value} ;;
             --help)                     help_and_exit ;;
             *)
     esac
@@ -48,13 +48,6 @@ fi
 # Make sure .build folder exists
 mkdir -p "${build_path}"
 
-# Only download geth code if binary does not exist
-if [ -f "${geth_path}/geth-${geth_version}" ]
-then
-    echo "Skipping geth build - Found binary at ${geth_path}/geth-${geth_version}"
-    exit 0
-fi
-
 # Clone geth source code if the path is empty
 if [ -d "${geth_repo_path}" ]
 then
@@ -65,11 +58,12 @@ fi
 
 # Build geth binary
 cd "${geth_repo_path}"
+export GOROOT=
 make geth
 
 # Copy binary to the correct path
 mkdir -p "${geth_path}"
-cp "${geth_repo_bin_path}" "${geth_path}/geth-${geth_version}"
+cp "${geth_repo_bin_path}" "${geth_path}/geth"
 
 cd ..
 

integration/eth2network/eth2_binaries.go

@@ -1,6 +1,7 @@
 package eth2network
 
 import (
+	"context"
 	"fmt"
 	"io"
 	"net/http"
@@ -9,11 +10,14 @@ import (
 	"path"
 	"path/filepath"
 	"runtime"
+	"strings"
 	"sync"
+
+	"github.com/codeclysm/extract/v3"
 )
 
 const (
-	_gethVersion  = "1.12.2"
+	_gethVersion  = "1.12.2-bed84606"
 	_prysmVersion = "v4.0.6"
 )
 
@@ -37,43 +41,88 @@ func EnsureBinariesExist() (string, error) {
 		panic(err)
 	}
 
-	// build geth
-	if !fileExists(path.Join(basepath, _eth2BinariesRelPath, _gethFileNameVersion)) {
-		gethScript := path.Join(basepath, "./build_geth_binary.sh")
-		cmd := exec.Command("bash", gethScript, fmt.Sprintf("%s=%s", "--version", "v"+_gethVersion))
-		cmd.Stderr = os.Stderr
-
-		if out, err := cmd.Output(); err != nil {
-			fmt.Printf("%s\n", out)
-			return "", err
+	var wg sync.WaitGroup
+	prysmaticURL := fmt.Sprintf("https://github.com/prysmaticlabs/prysm/releases/download/%s/", _prysmVersion)
+	wg.Add(4)
+	go func() {
+		defer wg.Done()
+		err := checkOrDownloadBinary(_prysmBeaconChainFileNameVersion, fmt.Sprintf("%s%s", prysmaticURL, _prysmBeaconChainFileNameVersion), false)
+		if err != nil {
+			panic(err)
 		}
-	}
-
-	// download prysm files
-	for fileName, downloadURL := range map[string]string{
-		_prysmBeaconChainFileNameVersion: fmt.Sprintf("https://github.com/prysmaticlabs/prysm/releases/download/%s/beacon-chain-%s-%s-%s", _prysmVersion, _prysmVersion, runtime.GOOS, runtime.GOARCH),
-		_prysmCTLFileNameVersion:         fmt.Sprintf("https://github.com/prysmaticlabs/prysm/releases/download/%s/prysmctl-%s-%s-%s", _prysmVersion, _prysmVersion, runtime.GOOS, runtime.GOARCH),
-		_prysmValidatorFileNameVersion:   fmt.Sprintf("https://github.com/prysmaticlabs/prysm/releases/download/%s/validator-%s-%s-%s", _prysmVersion, _prysmVersion, runtime.GOOS, runtime.GOARCH),
-	} {
-		expectedFilePath := path.Join(basepath, _eth2BinariesRelPath, fileName)
-		if !fileExists(expectedFilePath) {
-			err := downloadFile(expectedFilePath, downloadURL)
-			if err != nil {
-				return "", err
+	}()
+	go func() {
+		defer wg.Done()
+		err := checkOrDownloadBinary(_prysmCTLFileNameVersion, fmt.Sprintf("%s%s", prysmaticURL, _prysmCTLFileNameVersion), false)
+		if err != nil {
+			panic(err)
+		}
+	}()
+	go func() {
+		defer wg.Done()
+		err := checkOrDownloadBinary(_prysmValidatorFileNameVersion, fmt.Sprintf("%s%s", prysmaticURL, _prysmValidatorFileNameVersion), false)
+		if err != nil {
+			panic(err)
+		}
+	}()
+	go func() {
+		defer wg.Done()
+		err := checkOrDownloadBinary(_gethFileNameVersion, fmt.Sprintf("https://gethstore.blob.core.windows.net/builds/%s.tar.gz", _gethFileNameVersion), true)
+		if err != nil {
+			// geth 1.12 is not available to download for the mac, so we have to build it
+			println("Cannot download geth binary. Compiling from source.")
+			gethScript := path.Join(basepath, "./build_geth_binary.sh")
+
+			v := strings.Split(_gethVersion, "-")
+			cmd := exec.Command(
+				"bash",
+				gethScript,
+				fmt.Sprintf("%s=%s", "--version", "v"+v[0]),
+				fmt.Sprintf("%s=%s", "--output", path.Join(basepath, _eth2BinariesRelPath, _gethFileNameVersion)),
+			)
+			cmd.Stderr = os.Stderr
+
+			if out, err := cmd.Output(); err != nil {
+				fmt.Printf("%s\n", out)
+				panic(err)
 			}
-			fmt.Printf("Downloaded - %s\n", fileName)
 		}
-	}
+	}()
 
+	wg.Wait()
 	return path.Join(basepath, _eth2BinariesRelPath), nil
 }
 
-func fileExists(filename string) bool {
-	info, err := os.Stat(filename)
-	if os.IsNotExist(err) {
-		return false
+func checkOrDownloadBinary(fileName string, url string, unTar bool) error {
+	expectedFilePath := path.Join(basepath, _eth2BinariesRelPath, fileName)
+	if fileExists(expectedFilePath) {
+		return nil
 	}
-	return !info.IsDir()
+	suffix := ""
+	if unTar {
+		suffix = ".tar.gz"
+	}
+	err := downloadFile(expectedFilePath+suffix, url)
+	if err != nil {
+		return err
+	}
+	if unTar {
+		f, err := os.Open(expectedFilePath + suffix)
+		if err != nil {
+			return err
+		}
+		err = extract.Gz(context.TODO(), f, path.Join(basepath, _eth2BinariesRelPath), nil)
+		if err != nil {
+			return err
+		}
+	}
+	fmt.Printf("Downloaded - %s\n", expectedFilePath)
+	return nil
+}
+
+func fileExists(filename string) bool {
+	_, err := os.Stat(filename)
+	return !os.IsNotExist(err)
 }
 
 func downloadFile(filepath string, url string) error {
@@ -94,6 +143,7 @@ func downloadFile(filepath string, url string) error {
 
 	// Check server response
 	if resp.StatusCode != http.StatusOK {
+		os.Remove(filepath)
 		return fmt.Errorf("bad status: %s", resp.Status)
 	}
 

integration/eth2network/eth2_network.go

@@ -9,6 +9,7 @@ import (
 	"os"
 	"os/exec"
 	"path"
+	"runtime"
 	"strconv"
 	"strings"
 	"time"
@@ -23,12 +24,19 @@ import (
 )
 
 const (
-	_dataDirFlag                     = "--datadir"
-	_eth2BinariesRelPath             = "../.build/eth2_bin"
-	_gethFileNameVersion             = "geth-v" + _gethVersion
-	_prysmBeaconChainFileNameVersion = "beacon-chain-" + _prysmVersion
-	_prysmCTLFileNameVersion         = "prysmctl-" + _prysmVersion
-	_prysmValidatorFileNameVersion   = "validator-" + _prysmVersion
+	_eth2BinariesRelPath = "../.build/eth2_bin"
+	_dataDirFlag         = "--datadir"
+	_gethBinaryName      = "geth"
+)
+
+// https://gethstore.blob.core.windows.net/builds/geth-darwin-amd64-1.14.2-35b2d07f.tar.gz
+var _gethFileNameVersion = fmt.Sprintf("geth-%s-%s-%s", runtime.GOOS, runtime.GOARCH, _gethVersion)
+
+// https://github.com/prysmaticlabs/prysm/releases/download/v4.0.6/
+var (
+	_prysmBeaconChainFileNameVersion = fmt.Sprintf("beacon-chain-%s-%s-%s", _prysmVersion, runtime.GOOS, runtime.GOARCH)
+	_prysmCTLFileNameVersion         = fmt.Sprintf("prysmctl-%s-%s-%s", _prysmVersion, runtime.GOOS, runtime.GOARCH)
+	_prysmValidatorFileNameVersion   = fmt.Sprintf("validator-%s-%s-%s", _prysmVersion, runtime.GOOS, runtime.GOARCH)
 )
 
 type Impl struct {
@@ -93,7 +101,7 @@ func NewEth2Network(
 	prysmGenesisPath := path.Join(buildDir, "genesis.ssz")
 	prysmConfigPath := path.Join(buildDir, "prysm_chain_config.yml")
 
-	gethBinaryPath := path.Join(binDir, _gethFileNameVersion)
+	gethBinaryPath := path.Join(binDir, _gethFileNameVersion, _gethBinaryName)
 	prysmBeaconBinaryPath := path.Join(binDir, _prysmBeaconChainFileNameVersion)
 	prysmBinaryPath := path.Join(binDir, _prysmCTLFileNameVersion)
 	prysmValidatorBinaryPath := path.Join(binDir, _prysmValidatorFileNameVersion)

testnet/launcher/eth2network/docker.go

@@ -45,7 +45,10 @@ func (n *Eth2Network) Start() error {
 		exposedPorts = append(exposedPorts, n.cfg.gethWSPort)
 	}
 
-	_, err := docker.StartNewContainer("eth2network", "testnetobscuronet.azurecr.io/obscuronet/eth2network:latest", cmds, exposedPorts, nil, nil, nil)
+	// keep a volume of binaries to avoid downloading
+	volume := map[string]string{"eth2_bin": "/home/obscuro/go-obscuro/integration/.build/eth2_bin/"}
+
+	_, err := docker.StartNewContainer("eth2network", "testnetobscuronet.azurecr.io/obscuronet/eth2network:latest", cmds, exposedPorts, nil, nil, volume)
 	return err
 }