Rename vSAN Virtual Machine (name) along with its configuration files

rename-vsan-vm.sh

#!/bin/ash
# Thank you ChatGPT for creating the script given my requirement/prompts

# Usage: ./rename-esxi-vm.sh old_vm_name new_vm_name [--apply]
#
# Example dry-run (default): 
        ./rename-esxi-vm.sh photon-03 photon-02
# Apply changes:              
        ./rename-esxi-vm.sh photon-03 photon-02 --apply

OLD="$1"
NEW="$2"
MODE="$3"

if [ -z "$OLD" ] || [ -z "$NEW" ]; then
    echo -e "\nUsage: "
    echo -e "\t$0 old_vm_name new_vm_name [--apply]\n"
    exit 1
fi

# Default is dry-run unless --apply is explicitly set
if [ "$MODE" = "--apply" ]; then
    APPLY=1
    echo "🚨 APPLY mode enabled — changes will be made!"
else
    APPLY=0
    echo "🧪 Dry-run mode (default): no files will be modified"
fi

echo "Renaming VM from '$OLD' to '$NEW'..."

# Step 1: Rename all non-VMDK/non-VMX files
for file in ${OLD}.*; do
    ext="${file##*.}"

    case "$ext" in
        vmdk|vmx) continue ;;  # Skip VMDK and VMX
    esac

    newfile="${file/$OLD/$NEW}"
    echo "📁 Rename: $file → $newfile"
    [ "$APPLY" -eq 1 ] && mv "$file" "$newfile"
done

# Step 2: Rename VMDK files using vmkfstools
for vmdk in ${OLD}*.vmdk; do
    [ ! -f "$vmdk" ] && continue
    suffix="${vmdk#$OLD}"
    newvmdk="${NEW}${suffix}"

    echo "💽 vmkfstools -E \"$vmdk\" \"$newvmdk\""
    [ "$APPLY" -eq 1 ] && vmkfstools -E "$vmdk" "$newvmdk"
done

# Step 3: Rename .vmx and update its contents
VMX_FILE="${OLD}.vmx"
NEW_VMX_FILE="${NEW}.vmx"

if [ -f "$VMX_FILE" ]; then
    echo "📄 Rename .vmx: $VMX_FILE → $NEW_VMX_FILE"

    if [ "$APPLY" -eq 1 ]; then
        cp "$VMX_FILE" "$NEW_VMX_FILE"
        sed -i "s/$OLD/$NEW/g" "$NEW_VMX_FILE"
        rm -f "$VMX_FILE"
    else
        echo "📝 Would copy and update internal references in $NEW_VMX_FILE"
    fi
else
    echo "⚠️ .vmx file not found: $VMX_FILE"
fi

echo
if [ "$APPLY" -eq 1 ]; then
    echo "✅ Rename completed (applied)"
else
    echo "✅ Dry-run completed — use '--apply' to execute changes"
fi