From 74674eab187687f8bd262d2466871a6c1de6c02b Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Wed, 28 Feb 2024 08:16:22 +0100
Subject: [PATCH] feat: Persistant MAC address (#30)

---
 src/network.sh | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/network.sh b/src/network.sh
index bedb84d..dc2f134 100644
--- a/src/network.sh
+++ b/src/network.sh
@@ -239,8 +239,14 @@ getInfo() {
   fi
 
   if [ -z "$MAC" ]; then
-    # Generate MAC address based on Docker container ID in hostname
-    MAC=$(echo "$HOST" | md5sum | sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:\1:\2:\3:\4:\5/')
+    local file="$STORAGE/$PROCESS.mac"
+    if [ -f "$file" ]; then
+      MAC=$(<"$file")
+    else
+      # Generate MAC address based on Docker container ID in hostname
+      MAC=$(echo "$HOST" | md5sum | sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:\1:\2:\3:\4:\5/')
+      echo "${MAC^^}" > "$file"
+    fi
   fi
 
   VM_NET_MAC="${MAC^^}"