diff --git a/01-intro.html b/01-intro.html
index a7151e4..39e1e6f 100644
--- a/01-intro.html
+++ b/01-intro.html
@@ -321,7 +321,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Introduction</h1>
-        <p>Last updated on 2024-10-14 |
+        <p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/01-intro.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 
@@ -463,7 +463,7 @@ <h3 class="accordion-header" id="headingSpoiler1">
   Too much to install? I just want a quick try…
   </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>If you don’t have access to a Linux terminal or prefer not to install
 tools locally, you can use Google Cloud Shell. You’ll need a Google
@@ -471,7 +471,9 @@ <h3 class="accordion-header" id="headingSpoiler1">
 click the Cloud Shell icon in the top-right corner of the Google Cloud
 Console.</p>
 <p>Cloud Shell comes pre-installed with gcloud, kubectl, terraform, and
-go. However, you’ll need to install the Argo CLI manually</p>
+go. However, you’ll need to install the Argo CLI manually.</p>
+<p>Remember that while using Cloud Shell is free, you will need to have
+credits (or pay) for the resources you deploy.</p>
 </div>
 </div>
 </div>
@@ -558,8 +560,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/01-intro.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/01-intro.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-14",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/02-storage.html b/02-storage.html
index c3d8343..eb7710c 100644
--- a/02-storage.html
+++ b/02-storage.html
@@ -621,7 +621,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/02-storage.html",
   "dateCreated": "2024-10-10",
   "dateModified": "2024-10-16",
-  "datePublished": "2024-10-18"
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/03-disk-image.html b/03-disk-image.html
index d7bc2c5..0de1106 100644
--- a/03-disk-image.html
+++ b/03-disk-image.html
@@ -321,7 +321,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Disk image</h1>
-        <p>Last updated on 2024-10-17 |
+        <p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/03-disk-image.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 
@@ -360,9 +360,9 @@ <h3 class="card-title">Objectives</h3>
 needs to be pulled to the nodes of the cluster. It can take 30 mins to
 pull it. Making it available to the nodes of the cluster through a
 pre-built secondary disk image speeds up the workflow start.</p>
-<p>A script is available but building the disk image does not work for a
-new GCP account for the moment.</p>
-<p>Investigating….</p>
+<p>We will follow the <a href="https://cloud.google.com/kubernetes-engine/docs/how-to/data-container-image-preloading#prepare" class="external-link">instructions</a>
+provided by GCP to build the secondary disk image. All necessary steps
+are provided in this lesson.</p>
 </section><section><h2 class="section-heading" id="prerequisites">Prerequisites<a class="anchor" aria-label="anchor" href="#prerequisites"></a></h2>
 <hr class="half-width"><div class="section level3">
 <h3 id="gcp-account-and-project">GCP account and project<a class="anchor" aria-label="anchor" href="#gcp-account-and-project"></a></h3>
@@ -382,7 +382,8 @@ <h3 id="bucket-for-logs">Bucket for logs<a class="anchor" aria-label="anchor" hr
 <pre><code>gcloud storage buckets create gs://&lt;BUCKET_FOR_LOGS&gt;/ --location europe-west4</code></pre>
 </div>
 <div class="section level3">
-<h3 id="go-installed">Go installed<a class="anchor" aria-label="anchor" href="#go-installed"></a></h3>
+<h3 id="go-installed">Go installed?<a class="anchor" aria-label="anchor" href="#go-installed"></a></h3>
+<p>You should have <code>go</code> installed, see <a href="index.html#software-setup">Software setup</a>.</p>
 </div>
 <div class="section level3">
 <h3 id="enabling-services">Enabling services<a class="anchor" aria-label="anchor" href="#enabling-services"></a></h3>
@@ -509,7 +510,22 @@ <h3 class="accordion-header" id="headingSpoiler1">
 </div>
 </div>
 </section><section><h2 class="section-heading" id="costs">Costs<a class="anchor" aria-label="anchor" href="#costs"></a></h2>
-<hr class="half-width"><div id="keypoints1" class="callout keypoints">
+<hr class="half-width"><div class="section level3">
+<h3 id="computing">Computing<a class="anchor" aria-label="anchor" href="#computing"></a></h3>
+<p>The script runs a Google Cloud Build process and there’s per-minute
+small <a href="https://cloud.google.com/build/pricing" class="external-link">cost</a>. 120
+minutes are included in the <a href="https://cloud.google.com/free/docs/free-cloud-features#free-tier-usage-limits" class="external-link">Free
+tier services</a>.</p>
+</div>
+<div class="section level3">
+<h3 id="storage">Storage<a class="anchor" aria-label="anchor" href="#storage"></a></h3>
+<p>The image is stored in Google Compute Engine image storage, and the
+cost is computed by the archive size of the image. The cost is very low:
+in our example case, the size is 12.25 GB, and the monthly cost is
+$0.05/GB.</p>
+<p>There’s a minimal cost for the output logs GCS bucket. The bucket can
+be deleted after the build.</p>
+<div id="keypoints1" class="callout keypoints">
 <div class="callout-square">
 <i class="callout-icon" data-feather="key"></i>
 </div>
@@ -525,6 +541,7 @@ <h3 class="callout-title">Key Points</h3>
 Place links that you need to refer to multiple times across pages here. Delete
 any links that you are not going to use.
  -->
+</div>
 </section></div> <!-- / div.lesson-content -->
     </main><!-- / main#main-content.main-content --><nav class="bottom-pagination mx-md-4" aria-label="Previous and Next Chapter"><div class="d-block d-sm-block d-md-none">
         <a class="chapter-link" href="02-storage.html"><i aria-hidden="true" class="small-arrow" data-feather="arrow-left"></i>Previous</a>
@@ -583,8 +600,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/03-disk-image.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/03-disk-image.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-17",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/04-cluster.html b/04-cluster.html
index 800c27f..ddd9e0d 100644
--- a/04-cluster.html
+++ b/04-cluster.html
@@ -527,7 +527,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/04-cluster.html",
   "dateCreated": "2024-10-10",
   "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/05-workflow.html b/05-workflow.html
index 851f6c4..aac1718 100644
--- a/05-workflow.html
+++ b/05-workflow.html
@@ -322,7 +322,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Set up workflow</h1>
-        <p>Last updated on 2024-10-17 |
+        <p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/05-workflow.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 
@@ -383,7 +383,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 </div>
 <div class="section level3">
-<h3 id="argo-cli">Argo CLI<a class="anchor" aria-label="anchor" href="#argo-cli"></a></h3>
+<h3 id="argo-cli-installed">Argo CLI installed?<a class="anchor" aria-label="anchor" href="#argo-cli-installed"></a></h3>
 <p>You should have Argo CLI installed, see <a href="index.html#software-setup">Software setup</a>.</p>
 </div>
 </section><section><h2 class="section-heading" id="get-the-code">Get the code<a class="anchor" aria-label="anchor" href="#get-the-code"></a></h2>
@@ -574,8 +574,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/05-workflow.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/05-workflow.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-17",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index 7812b28..b0e011c 100644
--- a/404.html
+++ b/404.html
@@ -365,8 +365,8 @@ <h1>Page not found</h1>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/404.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/404.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 4cee282..d18234b 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -392,7 +392,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/CODE_OF_CONDUCT.html",
   "dateCreated": "2024-10-10",
   "dateModified": "2024-06-19",
-  "datePublished": "2024-10-18"
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index cb25e5c..adcf499 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -473,7 +473,7 @@ <h1>Licenses</h1>
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/LICENSE.html",
   "dateCreated": "2024-10-10",
   "dateModified": "2024-06-19",
-  "datePublished": "2024-10-18"
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index f2ea791..a3bb309 100644
--- a/aio.html
+++ b/aio.html
@@ -356,7 +356,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         
 <section id="aio-01-intro"><p>Content from <a href="01-intro.html">Introduction</a></p>
 <hr>
-<p>Last updated on 2024-10-14 |
+<p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/01-intro.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -508,7 +508,7 @@ <h3 class="accordion-header" id="headingSpoiler1">
   Too much to install? I just want a quick try…
   </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>If you don’t have access to a Linux terminal or prefer not to install
 tools locally, you can use Google Cloud Shell. You’ll need a Google
@@ -516,7 +516,9 @@ <h3 class="accordion-header" id="headingSpoiler1">
 click the Cloud Shell icon in the top-right corner of the Google Cloud
 Console.</p>
 <p>Cloud Shell comes pre-installed with gcloud, kubectl, terraform, and
-go. However, you’ll need to install the Argo CLI manually</p>
+go. However, you’ll need to install the Argo CLI manually.</p>
+<p>Remember that while using Cloud Shell is free, you will need to have
+credits (or pay) for the resources you deploy.</p>
 </div>
 </div>
 </div>
@@ -809,7 +811,7 @@ <h3 class="callout-title">Key Points</h3>
 </div>
 </section></section><section id="aio-03-disk-image"><p>Content from <a href="03-disk-image.html">Disk image</a></p>
 <hr>
-<p>Last updated on 2024-10-17 |
+<p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/03-disk-image.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -848,9 +850,9 @@ <h3 class="card-title">Objectives</h3>
 needs to be pulled to the nodes of the cluster. It can take 30 mins to
 pull it. Making it available to the nodes of the cluster through a
 pre-built secondary disk image speeds up the workflow start.</p>
-<p>A script is available but building the disk image does not work for a
-new GCP account for the moment.</p>
-<p>Investigating….</p>
+<p>We will follow the <a href="https://cloud.google.com/kubernetes-engine/docs/how-to/data-container-image-preloading#prepare" class="external-link">instructions</a>
+provided by GCP to build the secondary disk image. All necessary steps
+are provided in this lesson.</p>
 </section><section><h2 class="section-heading" id="prerequisites">Prerequisites<a class="anchor" aria-label="anchor" href="#prerequisites"></a>
 </h2>
 <hr class="half-width">
@@ -874,8 +876,9 @@ <h3 id="bucket-for-logs">Bucket for logs<a class="anchor" aria-label="anchor" hr
 <pre><code>gcloud storage buckets create gs://&lt;BUCKET_FOR_LOGS&gt;/ --location europe-west4</code></pre>
 </div>
 <div class="section level3">
-<h3 id="go-installed">Go installed<a class="anchor" aria-label="anchor" href="#go-installed"></a>
+<h3 id="go-installed">Go installed?<a class="anchor" aria-label="anchor" href="#go-installed"></a>
 </h3>
+<p>You should have <code>go</code> installed, see <a href="index.html#software-setup">Software setup</a>.</p>
 </div>
 <div class="section level3">
 <h3 id="enabling-services">Enabling services<a class="anchor" aria-label="anchor" href="#enabling-services"></a>
@@ -1010,6 +1013,23 @@ <h3 class="accordion-header" id="headingSpoiler1">
 </section><section><h2 class="section-heading" id="costs">Costs<a class="anchor" aria-label="anchor" href="#costs"></a>
 </h2>
 <hr class="half-width">
+<div class="section level3">
+<h3 id="computing">Computing<a class="anchor" aria-label="anchor" href="#computing"></a>
+</h3>
+<p>The script runs a Google Cloud Build process and there’s per-minute
+small <a href="https://cloud.google.com/build/pricing" class="external-link">cost</a>. 120
+minutes are included in the <a href="https://cloud.google.com/free/docs/free-cloud-features#free-tier-usage-limits" class="external-link">Free
+tier services</a>.</p>
+</div>
+<div class="section level3">
+<h3 id="storage">Storage<a class="anchor" aria-label="anchor" href="#storage"></a>
+</h3>
+<p>The image is stored in Google Compute Engine image storage, and the
+cost is computed by the archive size of the image. The cost is very low:
+in our example case, the size is 12.25 GB, and the monthly cost is
+$0.05/GB.</p>
+<p>There’s a minimal cost for the output logs GCS bucket. The bucket can
+be deleted after the build.</p>
 <div id="keypoints1" class="callout keypoints">
 <div class="callout-square">
 <i class="callout-icon" data-feather="key"></i>
@@ -1028,6 +1048,7 @@ <h3 class="callout-title">Key Points</h3>
 Place links that you need to refer to multiple times across pages here. Delete
 any links that you are not going to use.
  -->
+</div>
 </section></section><section id="aio-04-cluster"><p>Content from <a href="04-cluster.html">Kubernetes cluster</a></p>
 <hr>
 <p>Last updated on 2024-10-18 |
@@ -1194,7 +1215,7 @@ <h3 class="callout-title">Key Points</h3>
  -->
 </section></section><section id="aio-05-workflow"><p>Content from <a href="05-workflow.html">Set up workflow</a></p>
 <hr>
-<p>Last updated on 2024-10-17 |
+<p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/05-workflow.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -1257,7 +1278,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 </div>
 <div class="section level3">
-<h3 id="argo-cli">Argo CLI<a class="anchor" aria-label="anchor" href="#argo-cli"></a>
+<h3 id="argo-cli-installed">Argo CLI installed?<a class="anchor" aria-label="anchor" href="#argo-cli-installed"></a>
 </h3>
 <p>You should have Argo CLI installed, see <a href="index.html#software-setup">Software setup</a>.</p>
 </div>
@@ -1452,8 +1473,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/aio.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/aio.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 243266c..d87357b 100644
--- a/images.html
+++ b/images.html
@@ -407,8 +407,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/images.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/images.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index dc83724..c8bff4f 100644
--- a/index.html
+++ b/index.html
@@ -313,15 +313,16 @@ <h2 class="accordion-header" id="flush-headingTwelve">
 
 <p>This tutorial will guide you through setting up CMS Open data
 processing using Google Cloud Platform resources.</p>
-<p>You will need this</p>
-<ul><li>if you would like to use the NanoAOD format in your data
-analysis</li>
-<li>if the standard NanoAOD content is not sufficient for your
+<p>This is for you if:</p>
+<ul><li>the standard NanoAOD content is not sufficient for your
 use-case</li>
-<li>if the missing information is available in MiniAOD.</li>
-</ul><p>The output of the example task is NanoAOD format enriched with the
-Particle-Flow (PF) candidates. Part of the existing open data is <a href="https://opendata.cern.ch/search?q=&amp;f=experiment%3ACMS&amp;f=file_type%3Ananoaod-pf&amp;l=list&amp;order=desc&amp;p=1&amp;s=10&amp;sort=mostrecent" class="external-link">available</a>
-in this format.</p>
+<li>you would like to use MiniAOD content for your analysis, but you do
+not have computing resources available.</li>
+</ul><p>The example task is to process a custom NanoAOD starting from
+MiniAOD. The output of this example task is NanoAOD format enriched with
+the Particle-Flow (PF) candidates. Part of the existing open data is <a href="https://opendata.cern.ch/search?q=&amp;f=experiment%3ACMS&amp;f=file_type%3Ananoaod-pf&amp;l=list&amp;order=desc&amp;p=1&amp;s=10&amp;sort=mostrecent" class="external-link">available</a>
+in this format, and following this example you will be able to process
+more of it if needed in your analysis.</p>
 <!--
 Place links that you need to refer to multiple times across pages here. Delete
 any links that you are not going to use.
@@ -466,8 +467,8 @@ <h3 id="optional-for-building-an-image-disk-go">Optional for building an image d
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/index.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/index.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index 5d40eb2..99731d0 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -410,8 +410,8 @@ <h1>Instructor Notes</h1>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor-notes.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor-notes.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/01-intro.html b/instructor/01-intro.html
index 4deb22b..6050e59 100644
--- a/instructor/01-intro.html
+++ b/instructor/01-intro.html
@@ -321,7 +321,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Introduction</h1>
-        <p>Last updated on 2024-10-14 |
+        <p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/01-intro.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 
@@ -465,7 +465,7 @@ <h3 class="accordion-header" id="headingSpoiler1">
   Too much to install? I just want a quick try…
   </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>If you don’t have access to a Linux terminal or prefer not to install
 tools locally, you can use Google Cloud Shell. You’ll need a Google
@@ -473,7 +473,9 @@ <h3 class="accordion-header" id="headingSpoiler1">
 click the Cloud Shell icon in the top-right corner of the Google Cloud
 Console.</p>
 <p>Cloud Shell comes pre-installed with gcloud, kubectl, terraform, and
-go. However, you’ll need to install the Argo CLI manually</p>
+go. However, you’ll need to install the Argo CLI manually.</p>
+<p>Remember that while using Cloud Shell is free, you will need to have
+credits (or pay) for the resources you deploy.</p>
 </div>
 </div>
 </div>
@@ -560,8 +562,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/01-intro.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/01-intro.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-14",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/02-storage.html b/instructor/02-storage.html
index 27c8be4..f37f34f 100644
--- a/instructor/02-storage.html
+++ b/instructor/02-storage.html
@@ -623,7 +623,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/02-storage.html",
   "dateCreated": "2024-10-10",
   "dateModified": "2024-10-16",
-  "datePublished": "2024-10-18"
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/03-disk-image.html b/instructor/03-disk-image.html
index f2f381c..a13f8e3 100644
--- a/instructor/03-disk-image.html
+++ b/instructor/03-disk-image.html
@@ -321,7 +321,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Disk image</h1>
-        <p>Last updated on 2024-10-17 |
+        <p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/03-disk-image.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 
@@ -362,9 +362,9 @@ <h3 class="card-title">Objectives</h3>
 needs to be pulled to the nodes of the cluster. It can take 30 mins to
 pull it. Making it available to the nodes of the cluster through a
 pre-built secondary disk image speeds up the workflow start.</p>
-<p>A script is available but building the disk image does not work for a
-new GCP account for the moment.</p>
-<p>Investigating….</p>
+<p>We will follow the <a href="https://cloud.google.com/kubernetes-engine/docs/how-to/data-container-image-preloading#prepare" class="external-link">instructions</a>
+provided by GCP to build the secondary disk image. All necessary steps
+are provided in this lesson.</p>
 </section><section><h2 class="section-heading" id="prerequisites">Prerequisites<a class="anchor" aria-label="anchor" href="#prerequisites"></a></h2>
 <hr class="half-width"><div class="section level3">
 <h3 id="gcp-account-and-project">GCP account and project<a class="anchor" aria-label="anchor" href="#gcp-account-and-project"></a></h3>
@@ -384,7 +384,8 @@ <h3 id="bucket-for-logs">Bucket for logs<a class="anchor" aria-label="anchor" hr
 <pre><code>gcloud storage buckets create gs://&lt;BUCKET_FOR_LOGS&gt;/ --location europe-west4</code></pre>
 </div>
 <div class="section level3">
-<h3 id="go-installed">Go installed<a class="anchor" aria-label="anchor" href="#go-installed"></a></h3>
+<h3 id="go-installed">Go installed?<a class="anchor" aria-label="anchor" href="#go-installed"></a></h3>
+<p>You should have <code>go</code> installed, see <a href="index.html#software-setup">Software setup</a>.</p>
 </div>
 <div class="section level3">
 <h3 id="enabling-services">Enabling services<a class="anchor" aria-label="anchor" href="#enabling-services"></a></h3>
@@ -511,7 +512,22 @@ <h3 class="accordion-header" id="headingSpoiler1">
 </div>
 </div>
 </section><section><h2 class="section-heading" id="costs">Costs<a class="anchor" aria-label="anchor" href="#costs"></a></h2>
-<hr class="half-width"><div id="keypoints1" class="callout keypoints">
+<hr class="half-width"><div class="section level3">
+<h3 id="computing">Computing<a class="anchor" aria-label="anchor" href="#computing"></a></h3>
+<p>The script runs a Google Cloud Build process and there’s per-minute
+small <a href="https://cloud.google.com/build/pricing" class="external-link">cost</a>. 120
+minutes are included in the <a href="https://cloud.google.com/free/docs/free-cloud-features#free-tier-usage-limits" class="external-link">Free
+tier services</a>.</p>
+</div>
+<div class="section level3">
+<h3 id="storage">Storage<a class="anchor" aria-label="anchor" href="#storage"></a></h3>
+<p>The image is stored in Google Compute Engine image storage, and the
+cost is computed by the archive size of the image. The cost is very low:
+in our example case, the size is 12.25 GB, and the monthly cost is
+$0.05/GB.</p>
+<p>There’s a minimal cost for the output logs GCS bucket. The bucket can
+be deleted after the build.</p>
+<div id="keypoints1" class="callout keypoints">
 <div class="callout-square">
 <i class="callout-icon" data-feather="key"></i>
 </div>
@@ -527,6 +543,7 @@ <h3 class="callout-title">Key Points</h3>
 Place links that you need to refer to multiple times across pages here. Delete
 any links that you are not going to use.
  -->
+</div>
 </section></div> <!-- / div.lesson-content -->
     </main><!-- / main#main-content.main-content --><nav class="bottom-pagination mx-md-4" aria-label="Previous and Next Chapter"><div class="d-block d-sm-block d-md-none">
         <a class="chapter-link" href="../instructor/02-storage.html"><i aria-hidden="true" class="small-arrow" data-feather="arrow-left"></i>Previous</a>
@@ -585,8 +602,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/03-disk-image.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/03-disk-image.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-17",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/04-cluster.html b/instructor/04-cluster.html
index b0460e7..bebcfa5 100644
--- a/instructor/04-cluster.html
+++ b/instructor/04-cluster.html
@@ -529,7 +529,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/04-cluster.html",
   "dateCreated": "2024-10-10",
   "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/05-workflow.html b/instructor/05-workflow.html
index f52fdea..141e544 100644
--- a/instructor/05-workflow.html
+++ b/instructor/05-workflow.html
@@ -322,7 +322,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Set up workflow</h1>
-        <p>Last updated on 2024-10-17 |
+        <p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/05-workflow.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 
@@ -385,7 +385,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 </div>
 <div class="section level3">
-<h3 id="argo-cli">Argo CLI<a class="anchor" aria-label="anchor" href="#argo-cli"></a></h3>
+<h3 id="argo-cli-installed">Argo CLI installed?<a class="anchor" aria-label="anchor" href="#argo-cli-installed"></a></h3>
 <p>You should have Argo CLI installed, see <a href="index.html#software-setup">Software setup</a>.</p>
 </div>
 </section><section><h2 class="section-heading" id="get-the-code">Get the code<a class="anchor" aria-label="anchor" href="#get-the-code"></a></h2>
@@ -576,8 +576,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/05-workflow.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/05-workflow.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-17",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 1749146..7dd7701 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -365,8 +365,8 @@ <h1>Page not found</h1>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/404.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/404.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index b2449eb..5157d34 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -394,7 +394,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2024-10-10",
   "dateModified": "2024-06-19",
-  "datePublished": "2024-10-18"
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 8bede0f..4cc2b47 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -475,7 +475,7 @@ <h1>Licenses</h1>
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/LICENSE.html",
   "dateCreated": "2024-10-10",
   "dateModified": "2024-06-19",
-  "datePublished": "2024-10-18"
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index 83ec4d3..f4a2694 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -358,7 +358,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
         
 <section id="aio-01-intro"><p>Content from <a href="01-intro.html">Introduction</a></p>
 <hr>
-<p>Last updated on 2024-10-14 |
+<p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/01-intro.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 15 minutes</p>
@@ -511,7 +511,7 @@ <h3 class="accordion-header" id="headingSpoiler1">
   Too much to install? I just want a quick try…
   </h3>
 </button>
-<div id="collapseSpoiler1" class="accordion-collapse collapse" aria-labelledby="headingSpoiler1" data-bs-parent="#accordionSpoiler1">
+<div id="collapseSpoiler1" class="accordion-collapse collapse" data-bs-parent="#accordionSpoiler1" aria-labelledby="headingSpoiler1">
 <div class="accordion-body">
 <p>If you don’t have access to a Linux terminal or prefer not to install
 tools locally, you can use Google Cloud Shell. You’ll need a Google
@@ -519,7 +519,9 @@ <h3 class="accordion-header" id="headingSpoiler1">
 click the Cloud Shell icon in the top-right corner of the Google Cloud
 Console.</p>
 <p>Cloud Shell comes pre-installed with gcloud, kubectl, terraform, and
-go. However, you’ll need to install the Argo CLI manually</p>
+go. However, you’ll need to install the Argo CLI manually.</p>
+<p>Remember that while using Cloud Shell is free, you will need to have
+credits (or pay) for the resources you deploy.</p>
 </div>
 </div>
 </div>
@@ -813,7 +815,7 @@ <h3 class="callout-title">Key Points</h3>
 </div>
 </section></section><section id="aio-03-disk-image"><p>Content from <a href="03-disk-image.html">Disk image</a></p>
 <hr>
-<p>Last updated on 2024-10-17 |
+<p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/03-disk-image.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 15 minutes</p>
@@ -853,9 +855,9 @@ <h3 class="card-title">Objectives</h3>
 needs to be pulled to the nodes of the cluster. It can take 30 mins to
 pull it. Making it available to the nodes of the cluster through a
 pre-built secondary disk image speeds up the workflow start.</p>
-<p>A script is available but building the disk image does not work for a
-new GCP account for the moment.</p>
-<p>Investigating….</p>
+<p>We will follow the <a href="https://cloud.google.com/kubernetes-engine/docs/how-to/data-container-image-preloading#prepare" class="external-link">instructions</a>
+provided by GCP to build the secondary disk image. All necessary steps
+are provided in this lesson.</p>
 </section><section><h2 class="section-heading" id="prerequisites">Prerequisites<a class="anchor" aria-label="anchor" href="#prerequisites"></a>
 </h2>
 <hr class="half-width">
@@ -879,8 +881,9 @@ <h3 id="bucket-for-logs">Bucket for logs<a class="anchor" aria-label="anchor" hr
 <pre><code>gcloud storage buckets create gs://&lt;BUCKET_FOR_LOGS&gt;/ --location europe-west4</code></pre>
 </div>
 <div class="section level3">
-<h3 id="go-installed">Go installed<a class="anchor" aria-label="anchor" href="#go-installed"></a>
+<h3 id="go-installed">Go installed?<a class="anchor" aria-label="anchor" href="#go-installed"></a>
 </h3>
+<p>You should have <code>go</code> installed, see <a href="index.html#software-setup">Software setup</a>.</p>
 </div>
 <div class="section level3">
 <h3 id="enabling-services">Enabling services<a class="anchor" aria-label="anchor" href="#enabling-services"></a>
@@ -1015,6 +1018,23 @@ <h3 class="accordion-header" id="headingSpoiler1">
 </section><section><h2 class="section-heading" id="costs">Costs<a class="anchor" aria-label="anchor" href="#costs"></a>
 </h2>
 <hr class="half-width">
+<div class="section level3">
+<h3 id="computing">Computing<a class="anchor" aria-label="anchor" href="#computing"></a>
+</h3>
+<p>The script runs a Google Cloud Build process and there’s per-minute
+small <a href="https://cloud.google.com/build/pricing" class="external-link">cost</a>. 120
+minutes are included in the <a href="https://cloud.google.com/free/docs/free-cloud-features#free-tier-usage-limits" class="external-link">Free
+tier services</a>.</p>
+</div>
+<div class="section level3">
+<h3 id="storage">Storage<a class="anchor" aria-label="anchor" href="#storage"></a>
+</h3>
+<p>The image is stored in Google Compute Engine image storage, and the
+cost is computed by the archive size of the image. The cost is very low:
+in our example case, the size is 12.25 GB, and the monthly cost is
+$0.05/GB.</p>
+<p>There’s a minimal cost for the output logs GCS bucket. The bucket can
+be deleted after the build.</p>
 <div id="keypoints1" class="callout keypoints">
 <div class="callout-square">
 <i class="callout-icon" data-feather="key"></i>
@@ -1033,6 +1053,7 @@ <h3 class="callout-title">Key Points</h3>
 Place links that you need to refer to multiple times across pages here. Delete
 any links that you are not going to use.
  -->
+</div>
 </section></section><section id="aio-04-cluster"><p>Content from <a href="04-cluster.html">Kubernetes cluster</a></p>
 <hr>
 <p>Last updated on 2024-10-18 |
@@ -1200,7 +1221,7 @@ <h3 class="callout-title">Key Points</h3>
  -->
 </section></section><section id="aio-05-workflow"><p>Content from <a href="05-workflow.html">Set up workflow</a></p>
 <hr>
-<p>Last updated on 2024-10-17 |
+<p>Last updated on 2024-10-19 |
 
         <a href="https://github.com/cms-opendata-workshop/tutorial-lesson-cloud-processing-gcp/edit/main/episodes/05-workflow.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 15 minutes</p>
@@ -1264,7 +1285,7 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
 </div>
 </div>
 <div class="section level3">
-<h3 id="argo-cli">Argo CLI<a class="anchor" aria-label="anchor" href="#argo-cli"></a>
+<h3 id="argo-cli-installed">Argo CLI installed?<a class="anchor" aria-label="anchor" href="#argo-cli-installed"></a>
 </h3>
 <p>You should have Argo CLI installed, see <a href="index.html#software-setup">Software setup</a>.</p>
 </div>
@@ -1459,8 +1480,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/aio.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/aio.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index ec9ce02..ae64335 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -409,8 +409,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/images.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/images.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index a825a43..8639c69 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -305,15 +305,16 @@ <h2 class="accordion-header" id="flush-headingTwelve">
 
 <p>This tutorial will guide you through setting up CMS Open data
 processing using Google Cloud Platform resources.</p>
-<p>You will need this</p>
-<ul><li>if you would like to use the NanoAOD format in your data
-analysis</li>
-<li>if the standard NanoAOD content is not sufficient for your
+<p>This is for you if:</p>
+<ul><li>the standard NanoAOD content is not sufficient for your
 use-case</li>
-<li>if the missing information is available in MiniAOD.</li>
-</ul><p>The output of the example task is NanoAOD format enriched with the
-Particle-Flow (PF) candidates. Part of the existing open data is <a href="https://opendata.cern.ch/search?q=&amp;f=experiment%3ACMS&amp;f=file_type%3Ananoaod-pf&amp;l=list&amp;order=desc&amp;p=1&amp;s=10&amp;sort=mostrecent" class="external-link">available</a>
-in this format.</p>
+<li>you would like to use MiniAOD content for your analysis, but you do
+not have computing resources available.</li>
+</ul><p>The example task is to process a custom NanoAOD starting from
+MiniAOD. The output of this example task is NanoAOD format enriched with
+the Particle-Flow (PF) candidates. Part of the existing open data is <a href="https://opendata.cern.ch/search?q=&amp;f=experiment%3ACMS&amp;f=file_type%3Ananoaod-pf&amp;l=list&amp;order=desc&amp;p=1&amp;s=10&amp;sort=mostrecent" class="external-link">available</a>
+in this format, and following this example you will be able to process
+more of it if needed in your analysis.</p>
 <!--
 Place links that you need to refer to multiple times across pages here. Delete
 any links that you are not going to use.
@@ -523,8 +524,8 @@ <h3 id="optional-for-building-an-image-disk-go">Optional for building an image d
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/index.html",
   "identifier": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/index.html",
   "dateCreated": "2024-10-10",
-  "dateModified": "2024-10-18",
-  "datePublished": "2024-10-18"
+  "dateModified": "2024-10-19",
+  "datePublished": "2024-10-19"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index c7f141d..839c1ca 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -417,8 +417,8 @@ <h1>Instructor Notes</h1>
   "url": "https://cms-opendata-workshop.github.io/tutorial-lesson-cloud-processing-gcp/instructor/instructor-notes.html",
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