diff --git a/setup_managed_node.sh b/setup_managed_node.sh
index 694b460..5fdc88a 100644
--- a/setup_managed_node.sh
+++ b/setup_managed_node.sh
@@ -17,11 +17,38 @@
 }
 trap cleanup EXIT
 
+apt_update_status=""
+
+install_cmd()
+{
+  local cmd="$1"
+  local package="${2:-1}"
+  if ! command -v "$cmd" >/dev/null 2>&1; then
+    if command -v apt-get >/dev/null 2>&1; then
+      if [[ ! $apt_update_status ]]; then
+        $apt_update_status="done"
+        apt-get update
+      fi
+      apt-get install -y $package
+    elif command -v dnf >/dev/null 2>&1; then
+      dnf install -y $package
+    elif command -v yum >/dev/null 2>&1; then
+      yum install -y $package
+    else
+      echo "WARNING: Could not detect package manager. Install $package manually."
+      return 1
+    fi
+  fi
+  return 0
+}
+
 if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root"
   exit 1
 fi
 
+install_cmd "sudo" "passwd" || exit 1
+
 echo "==> Creating ansible user (if needed)"
 if ! id "${ANSIBLE_USER}" >/dev/null 2>&1; then
   useradd --create-home --shell /bin/bash "${ANSIBLE_USER}"
@@ -130,18 +157,7 @@
 fi
 
 echo "==> Ensuring python3 is installed"
-if ! command -v python3 >/dev/null 2>&1; then
-  if command -v apt-get >/dev/null 2>&1; then
-    apt-get update
-    apt-get install -y python3
-  elif command -v dnf >/dev/null 2>&1; then
-    dnf install -y python3
-  elif command -v yum >/dev/null 2>&1; then
-    yum install -y python3
-  else
-    echo "WARNING: Could not detect package manager. Install python3 manually."
-  fi
-fi
+install_cmd python3
 
 echo
 echo "===================================================="