Make Pimox template replacement rerun provisioning

bootstrap/provisioning/main.tf

@@ -133,8 +133,9 @@ resource "null_resource" "pimox_template_vm_create" {
     pimox_user      = var.pimox_user
     ssh_key_path    = var.pimox_ssh_key_path
     qm_bin          = var.pimox_qm_bin
-    builder_version = "6"
+    builder_version  = "7"
     config_hash      = local.config_hash
+    replace_existing = tostring(var.pimox_template_replace_existing)
     vmid             = tostring(var.pimox_template_vmid)
     name             = var.pimox_template_name
     cores            = tostring(var.pimox_template_cores)
@@ -195,15 +196,13 @@ start_vm() {
   trap 'rm -f "$start_script"' 0
 
   sudo "$qm_cmd" showcmd "$vmid" --pretty >"$start_script"
-  if ! awk -v vmid="$vmid" '
-    NR == 1 && ($1 == "/usr/bin/kvm" || $1 ~ /qemu-system-aarch64$/) { kvm = 1 }
-    $1 == "-id" && $2 == vmid { id = 1 }
-    END { exit (kvm && id) ? 0 : 1 }
-  ' "$start_script"; then
+  if ! { grep -Fq -- '/usr/bin/kvm' "$start_script" || grep -Fq -- 'qemu-system-aarch64' "$start_script"; } ||
+    ! grep -Fq -- "-id $vmid" "$start_script"; then
     echo "qm showcmd for VM $vmid did not produce the expected KVM command" >&2
+    sed 's/^/    showcmd: /' "$start_script" >&2
     exit 1
   fi
-  smp_count="$(awk '$1 == "-smp" { count++ } END { print count + 0 }' "$start_script")"
+  smp_count="$(grep -c '^[[:space:]]*-smp[[:space:]]' "$start_script" || true)"
   if [ "$smp_count" -ne 1 ]; then
     echo "Expected one native -smp argument for VM $vmid, found $smp_count. Remove stale qm args before starting." >&2
     exit 1