udpate references to cost

jupyter/terraform_notebook.ipynb

@@ -2,11 +2,6 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "metadata": {
-    "pycharm": {
-     "name": "#%% md\n"
-    }
-   },
    "source": [
     "# Pre-requisites\n",
     "\n",
@@ -44,15 +39,16 @@
     " * Python3.9\n",
     " * pip3\n",
     " * JetBrains PyCharm\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
+   ],
    "metadata": {
+    "collapsed": false,
     "pycharm": {
      "name": "#%% md\n"
     }
-   },
+   }
+  },
+  {
+   "cell_type": "markdown",
    "source": [
     "# Preparation\n",
     "\n",
@@ -63,15 +59,16 @@
     "\n",
     "\n",
     "3. (Non unix systems) Make sure to use the `Bash` kernel, not a Python or other kernel. For those on windows machines, make sure to launch the `jupyter notebook` server from a bash-compliant commandline, we recommend Windows Subsystem for Linux.\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
+   ],
    "metadata": {
+    "collapsed": false,
     "pycharm": {
      "name": "#%% md\n"
     }
-   },
+   }
+  },
+  {
+   "cell_type": "markdown",
    "source": [
     "# Deployment\n",
     "\n",
@@ -84,7 +81,13 @@
     "* [`terraform-gke/variables.tf`](terraform-gke/variables.tf)\n",
     "* [`terraform-dependencies/variables.tf`](terraform-dependencies/variables.tf)\n",
     "\n"
-   ]
+   ],
+   "metadata": {
+    "collapsed": false,
+    "pycharm": {
+     "name": "#%% md\n"
+    }
+   }
   },
   {
    "cell_type": "code",
@@ -344,7 +347,9 @@
     "\n",
     "By default, this will create a private zonal cluster consisting of two node-pools.\n",
     "\n",
-    "⚠️ Any changes to make the deployment to a regional cluster (even with all nodepools only spanning a single region), an additional free of 0.10 USD/hour will be billed with minute increments."
+    "⚠️ Any changes to create a regional cluster, an additional free of 0.10 USD/hour will be billed with minute increments. However, only the **first** zonal cluster is free of this cost.\n",
+    "\n",
+    "⚠️ The cluster will not make use of Spot/preemtible node, as such no discounts will be given for the deployment. You can experiment by setting `spot` to true in the `tf` files. Note however, that the default implementations provided in the test-bed do not allow for recovering from getting rescheduled.\n"
    ]
   },
   {
@@ -527,4 +532,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 1
-}
+}