From 1ec81f35c0fe24c4da03b533eac1b7fe294e3c75 Mon Sep 17 00:00:00 2001
From: Felipe Madero <felipe.madero@gmail.com>
Date: Sat, 2 Dec 2023 02:25:05 -0300
Subject: [PATCH] allow remote api calls if inside a docker container

---
 local/network.go | 10 ++++++++++
 utils/utils.go   |  9 +++++++++
 2 files changed, 19 insertions(+)

diff --git a/local/network.go b/local/network.go
index 7012752a..15cc1bb2 100644
--- a/local/network.go
+++ b/local/network.go
@@ -1139,6 +1139,16 @@ func (ln *localNetwork) buildArgs(
 		config.BootstrapIDsKey: ln.bootstraps.IDsArg(),
 	}
 
+	insideContainer, err := utils.InsideDockerContainer()
+	if err != nil {
+		return buildArgsReturn{}, err
+	}
+	if insideContainer {
+		// mapped localhost requests (eg using -p flag of docker run) are seen as coming from an external IP like 172.17.0.1
+		// so inside docker container just accept all requests
+		flags[config.HTTPHostKey] = ""
+	}
+
 	// Write staking key/cert etc. to disk so the new node can use them,
 	// and get flag that point the node to those files
 	fileFlags, err := writeFiles(ln.networkID, ln.genesis, dataDir, nodeConfig)
diff --git a/utils/utils.go b/utils/utils.go
index f527afc0..7eb1bc28 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -18,6 +18,7 @@ import (
 const (
 	genesisNetworkIDKey = "networkID"
 	dirTimestampFormat  = "20060102_150405"
+	dockerEnvPath       = "/.dockerenv"
 )
 
 var (
@@ -140,3 +141,11 @@ func VerifySubnetHasCorrectParticipants(
 	}
 	return false
 }
+
+func InsideDockerContainer() (bool, error) {
+	_, err := os.Stat(dockerEnvPath)
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}