From e9b82661bd6ab5bb510331e3515fb3f08ebaed18 Mon Sep 17 00:00:00 2001
From: CP Lepage <32472542+cplepage@users.noreply.github.com>
Date: Tue, 18 Jul 2023 16:23:55 -0400
Subject: [PATCH] even closer to real docker compose command

After more thorough investigation, tried to reproduced a closer behaviour to native docker compose CLI
---
 lib/networks.js | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/lib/networks.js b/lib/networks.js
index 3647f51..975a376 100644
--- a/lib/networks.js
+++ b/lib/networks.js
@@ -46,12 +46,21 @@ async function up(docker, projectName, recipe, output) {
       continue;
     }
     if (network.external === true) {
-      let returnedNetwork = await docker.listNetworks({
-        filters: { name: [ network.name || networkName ] },
+      const networkLookupName = network.name || networkName;
+
+      let returnedNetworks = await docker.listNetworks({
+        filters: { name: [ networkLookupName ] },
       });
+      
+      const externalNetwork = returnedNetworks.find(network => network.Name === networkLookupName)
+
+      if(!externalNetwork){
+        throw new Error(`network ${networkLookupName} declared as external, but could not be found`)
+      }
+
       networks.push({
         name: projectName + '_' + networkName,
-        network: await docker.getNetwork(returnedNetwork[0].Id),
+        network: await docker.getNetwork(externalNetwork.Id),
       });
       continue;
     }