add default of signature check from QUILIBRIUM_SIGNATURE_CHECK env var

Dockerfile

@@ -1,6 +1,7 @@
 FROM golang:1.20.14-alpine3.19 as build
 
 ENV GOEXPERIMENT=arenas
+ENV QUILIBRIUM_SIGNATURE_CHECK=false
 
 WORKDIR /opt/ceremonyclient
 

docker/docker-compose.yml

@@ -7,7 +7,6 @@ services:
   node:
     image: ${QUILIBRIUM_IMAGE_NAME:-quilibrium}
     restart: unless-stopped
-    command: ["--signature-check=false"]
     deploy:
       resources:
         limits:

node/main.go

@@ -102,8 +102,8 @@ var (
 	)
 	signatureCheck = flag.Bool(
 		"signature-check",
-		true,
+		signatureCheckDefault(),
-		"enables or disables signature validation (default true)",
+		"enables or disables signature validation (default true or value of QUILIBRIUM_SIGNATURE_CHECK env var)",
 	)
 	core = flag.Int(
 		"core",
@@ -137,6 +137,20 @@ var signatories = []string{
 	"a114b061f8d35e3f3497c8c43d83ba6b4af67aa7b39b743b1b0a35f2d66110b5051dd3d86f69b57122a35b64e624b8180bee63b6152fce4280",
 }
 
+func signatureCheckDefault() bool {
+	envVarValue, envVarExists := os.LookupEnv("QUILIBRIUM_SIGNATURE_CHECK")
+	if envVarExists {
+		def, err := strconv.ParseBool(envVarValue)
+		if err == nil {
+			return def
+		} else {
+			fmt.Println("Invalid environment variable QUILIBRIUM_SIGNATURE_CHECK, must be 'true' or 'false'. Got: " + envVarValue)
+		}
+	}
+
+	return true
+}
+
 func main() {
 	flag.Parse()
 
@@ -206,6 +220,8 @@ func main() {
 
 			fmt.Println("Signature check passed")
 		}
+	} else {
+		fmt.Println("Signature check disabled, skipping...")
 	}
 
 	if *memprofile != "" {