Upgrade to v5 schema

Now uses:
* ipld direct_by_leaf StateDB for basic queries
* trie_by_cid StateDB for trie slice and proof queries

Also:
* vulcanize => cerc refactor
* Backend method to close dbs
* state tests are in multiple packages, to allow separate ginkgo suites
* removes gap-filler module
* integration tests and github workflows
* run stack-orchestrator for testnet
* fix various issues with tests, hardhat server, dockerfile
* fix cmd flags / env vars
* fix flaky tests and clean up code
* remove unused code, scripts
* remove outdated docs
* update version

pkg/rpc/http.go

@@ -19,12 +19,12 @@ package rpc
 import (
 	"fmt"
 
-	"github.com/cerc-io/ipld-eth-server/v4/pkg/log"
+	"github.com/cerc-io/ipld-eth-server/v5/pkg/log"
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/rpc"
 
-	"github.com/cerc-io/ipld-eth-server/v4/pkg/prom"
+	"github.com/cerc-io/ipld-eth-server/v5/pkg/prom"
 )
 
 // StartHTTPEndpoint starts the HTTP RPC endpoint, configured with cors/vhosts/modules.
@@ -42,8 +42,8 @@ func StartHTTPEndpoint(endpoint string, apis []rpc.API, modules []string, cors [
 	if err != nil {
 		utils.Fatalf("Could not start RPC api: %v", err)
 	}
-	extapiURL := fmt.Sprintf("http://%v/", addr)
-	log.Infof("HTTP endpoint opened %s", extapiURL)
+	extapiURL := fmt.Sprintf("http://%s", addr)
+	log.Infof("HTTP endpoint opened at %s", extapiURL)
 
 	return srv, err
 }

pkg/rpc/ipc.go

@@ -22,11 +22,11 @@ import (
 	"os"
 	"path/filepath"
 
-	"github.com/cerc-io/ipld-eth-server/v4/pkg/log"
+	"github.com/cerc-io/ipld-eth-server/v5/pkg/log"
 	"github.com/ethereum/go-ethereum/p2p/netutil"
 	"github.com/ethereum/go-ethereum/rpc"
 
-	"github.com/cerc-io/ipld-eth-server/v4/pkg/prom"
+	"github.com/cerc-io/ipld-eth-server/v5/pkg/prom"
 )
 
 var (

pkg/rpc/ws.go

@@ -24,7 +24,8 @@ import (
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/rpc"
 
-	"github.com/cerc-io/ipld-eth-server/v4/pkg/prom"
+	"github.com/cerc-io/ipld-eth-server/v5/pkg/log"
+	"github.com/cerc-io/ipld-eth-server/v5/pkg/prom"
 )
 
 // StartWSEndpoint starts a websocket endpoint.
@@ -49,6 +50,7 @@ func StartWSEndpoint(endpoint string, apis []rpc.API, modules []string, wsOrigin
 	wsServer := NewWSServer(wsOrigins, handler)
 	wsServer.Handler = prom.WSMiddleware(wsServer.Handler)
 	go wsServer.Serve(listener)
+	log.Infof("WS endpoint opened at ws://%s", endpoint)
 
 	return listener, handler, err