feat: Generate Apple MAC address (#124)

readme.md

@@ -86,7 +86,9 @@ kubectl apply -f https://raw.githubusercontent.com/dockur/macos/refs/heads/maste
 
 ### How do I select the macOS version?
 
-  By default, macOS 13 (Ventura) will be installed. But you can add the `VERSION` environment variable to your compose file, in order to specify an alternative macOS version to be downloaded:
+  By default, macOS 13 (Ventura) will be installed, as it offers the best performance.
+
+  But you can add the `VERSION` environment variable to your compose file, in order to specify an alternative macOS version to be downloaded:
 
   ```yaml
   environment:

src/install.sh

@@ -2,7 +2,13 @@
 set -Eeuo pipefail
 
 # Docker environment variables
-: "${VERSION:="ventura"}"  # OSX Version
+
+: "${SN:=""}"
+: "${MLB:=""}"
+: "${MAC:=""}"
+: "${UUID:=""}"
+: "${MODEL:="iMacPro1,1"}"
+: "${VERSION:="13"}"     # OSX Version
 
 TMP="$STORAGE/tmp"
 BASE_IMG_ID="InstallMedia"
@@ -62,6 +68,35 @@ downloadImage() {
   return 0
 }
 
+generateID() {
+
+  local file="$STORAGE/$PROCESS.id"
+
+  [ -n "$UUID" ] && return 0
+  [ -s "$file" ] && UUID=$(<"$file")
+  [ -n "$UUID" ] && return 0
+
+  UUID=$(cat /proc/sys/kernel/random/uuid)
+  echo "${UUID^^}" > "$file"
+
+  return 0
+}
+
+generateAddress() {
+
+  local file="$STORAGE/$PROCESS.mac"
+
+  [ -n "$MAC" ] && return 0
+  [ -s "$file" ] && MAC=$(<"$file")
+  [ -n "$MAC" ] && return 0
+
+  # Generate Apple MAC address based on Docker container ID in hostname
+  MAC=$(echo "$HOST" | md5sum | sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/00:16:cb:\3:\4:\5/')
+  echo "${MAC^^}" > "$file"
+
+  return 0
+}
+
 if [ ! -f "$BASE_IMG" ] || [ ! -s "$BASE_IMG" ]; then
   if ! downloadImage "$VERSION"; then
     rm -rf "$TMP"
@@ -82,6 +117,14 @@ if [ "$VERSION" != "$STORED_VERSION" ]; then
   fi
 fi
 
+if !generateID; then
+  error "Failed to generate UUID!" && exit 35
+fi
+
+if !generateAddress; then
+  error "Failed to generate MAC address!" && exit 36
+fi
+
 DISK_OPTS="-device virtio-blk-pci,drive=${BASE_IMG_ID},bus=pcie.0,addr=0x6"
 DISK_OPTS+=" -drive file=$BASE_IMG,id=$BASE_IMG_ID,format=dmg,cache=unsafe,readonly=on,if=none"