up qcm

Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>
Add pdf
2026-01-28 23:35:23 +01:00 · 2026-01-28 23:06:51 +01:00 · 2026-01-28 21:54:15 +01:00 · 2026-01-20 12:32:46 +01:00 · 2026-01-20 11:12:36 +01:00 · 2026-01-20 09:35:12 +01:00
39 changed files with 177 additions and 61 deletions
--- a/ansible/training/lessons/1-intro.md
+++ b/ansible/training/lessons/1-intro.md
@@ -9,6 +9,13 @@ Ask your teacher for the IP address of the machine:
 ssh root@ip_address
 ```
 ## Change the password
 Now that you are connected to your server, change the password:
 ```
 passwd
 ```
 ## Host and Demo
 You are currently connected to a server which have docker installed.
 We will call this server: `localhost`.
--- a/ansible/training/lessons/2-inventory.md
+++ b/ansible/training/lessons/2-inventory.md
@@ -33,7 +33,7 @@ Finally, we tell ansible to use `python3` interpreter (default is `python`, but
 ### Check if running
 Try to connect on your demo machine, to see if it's running:
 ```
-ssh -p 2222 root@127.0.0.2
+ssh -p 2222 root@127.0.0.2 'echo "coucou from $(hostname)"'
 ```
 ### ping
--- a/cloud/slides/index.html
+++ b/cloud/slides/index.html
@@ -261,7 +261,7 @@
          <section>
            <h3>Virtualisation dans le cloud</h3>
            <p>Le cloud computing repose souvent sur la virtualisation.</p>
-            <p>Le plus souvent en se basant sur l'hyperviseur Open Source <span style="color: orange">QEMU/KVM</span></p>
+            <p>Le plus souvent en se basant sur l'hyperviseur Open Source <img src="qemu.png" alt="QEMU" style="margin: 0px"/> / <img src="kvm.png" alt="KVM" style="margin: 0px"/></p>
          </section>
          <section>
            <h3>Stockage dans le cloud</h3>
@@ -427,7 +427,7 @@
            La complexité réside dans la configuration et l'imbrication des différents éléments entre eux.
-            Beaucoup d'options sont possibles et nécessite une forte expertise.
+            Beaucoup d'options sont possibles et nécessitent une forte expertise.
          </section>
          <section data-markdown>
            ### Utilisation d'OpenStack
--- a/cloud/slides/kvm.png
+++ b/cloud/slides/kvm.png
--- a/cloud/slides/qemu.png
+++ b/cloud/slides/qemu.png
--- a/cloud/training/.gitignore
+++ b/cloud/training/.gitignore
@@ -0,0 +1 @@
 user-data-install-demo-flask.sh
--- a/cloud/training/101.md
+++ b/cloud/training/101.md
@@ -13,6 +13,8 @@
    * [Boot](#boot-1)
    * [Floating IP](#floating-ip)
    * [Connect with ssh](#connect-with-ssh-1)
  * [Userdata](#userdata)
  * [Demo Flask](#demo-flask)
  * [Bonus](#bonus)
@@ -292,11 +294,37 @@ ssh debian@xxx.yyy.zzz.aaa  # floating ip
 Q: what IP can you see on ens3 interface of the instance?
 ## Userdata
 ### Create a script
 Create a file named `postinstall.sh` with this content:
 ```
 #!/bin/bash
 echo "Hello from my instance" > /var/log/postinstall.log
 ```
 ### Start an instance
 Figure out the command to start a new instance with this script as `user-data`.
 Don't forget to start with your `keypair` so you can connect to it later
 ### Check the result
 When the instance is booted, ssh into it and check the result of the file:
 ```
 cat /var/log/postinstall.log
 ```
 Q: what is the name of the service running inside your instance that execute this `user-data` script?
 Q: from which url this service retrieve the script?
 ## demo-flask
 Try to deploy `demo-flask` with a custom `user-data` script.
 ## Bonus
-Try to deploy `demo-flask` with cloud-init
+Take a look at the [skyline WebUI](http://skyline.51.89.228.117.xip.opensteak.fr) and try to boot another instance from there.
 ## Bonus 2
 Take a look at the [skyline WebUI](http://skyline.54.36.119.253.xip.opensteak.fr) and try to boot another instance from there.
--- a/cloud/training/cipher.sh
+++ b/cloud/training/cipher.sh
@@ -0,0 +1,5 @@
 #!/bin/bash
 f=user-data-install-demo-flask.sh
 echo "Ciphering $f"
 cat $f | gpg -e -r arnaud@mailops.fr -r arnaud.choupinette@mailops.fr -r arnaud.morin@gmail.com > $f.gpg
--- a/cloud/training/uncipher.sh
+++ b/cloud/training/uncipher.sh
@@ -0,0 +1,6 @@
 #!/bin/bash
 f=user-data-install-demo-flask.sh.gpg
 echo "Unciphering $f"
 n=${f%.gpg}
 cat $f | gpg -d > $n
--- a/cloud/training/user-data-install-demo-flask.sh.gpg
+++ b/cloud/training/user-data-install-demo-flask.sh.gpg
--- a/docker/slides/slides.pdf
+++ b/docker/slides/slides.pdf
--- a/docker/training/lessons/1-docker-getting-started.md
+++ b/docker/training/lessons/1-docker-getting-started.md
@@ -1,3 +1,11 @@
 # Cleanup your isen
 If necessary, cleanup your `isen` from previous `ansible` TP results:
 ```bash
 apt-get purge -y nginx
 docker stop demo
 ```
 # Start the TP
 ```bash
--- a/index.html
+++ b/index.html
@@ -12,39 +12,59 @@
  <body>
    <div class="container">
      <h1>DevOps</h1>
-      <p><a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/devops/slides/' target='_blank'>Cours</a></p>
+      <p>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/devops/slides/' target='_blank'>Cours</a>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/devops/slides/slides.pdf' target='_blank'>Cours pdf</a>
      </p>
      <h1>Ansible</h1>
-      <p><a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/ansible/slides/' target='_blank'>Cours</a></p>
+      <p>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/ansible/slides/' target='_blank'>Cours</a>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/ansible/slides/slides.pdf' target='_blank'>Cours pdf</a>
      </p>
      <p><a class="btn btn-primary btn-lg" href='https://git.arnaudmorin.fr/arnaud/trainings/src/branch/main/ansible/training/lessons' target='_blank'>TP</a></p>
      <h1>Cloud et OpenStack</h1>
-      <p><a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/cloud/Arnaud%20Morin%20-%20Virtualisation%20Cloud.pdf' target='_blank'>Cours</a></p>
+      <p>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/cloud/slides/' target='_blank'>Cours</a>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/cloud/slides/slides.pdf' target='_blank'>Cours pdf</a>
      </p>
      <p><a class="btn btn-primary btn-lg" href='https://git.arnaudmorin.fr/arnaud/trainings/src/branch/main/cloud/training/' target='_blank'>TP</a></p>
      <h1>Git</h1>
-      <p><a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/git/' target='_blank'>Cours</a></p>
+      <p>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/git/' target='_blank'>Cours</a>
      </p>
      <p><a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/git/Arnaud%20Morin%20-%20Git%20Cheat%20Sheet.pdf' target='_blank'>Cheat Sheet</a></p>
      <p><a class="btn btn-primary btn-lg" href='https://github.com/arnaudmorin/git-katas/' target='_blank'>TP - Git-katas</a></p>
      <p><a class="btn btn-primary btn-lg" href='https://learngitbranching.js.org/' target='_blank'>Aller plus loin - Learn Git Branching</a></p>
      <h1>Docker</h1>
-      <p><a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/docker/slides/' target='_blank'>Cours</a></p>
+      <p>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/docker/slides/' target='_blank'>Cours</a>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/docker/slides/slides.pdf' target='_blank'>Cours pdf</a>
      </p>
      <p><a class="btn btn-primary btn-lg" href='https://git.arnaudmorin.fr/arnaud/trainings/src/branch/main/docker/training/lessons/1-docker-getting-started.md' target='_blank'>TP</a></p>
      <h1>Kubernetes</h1>
-      <p><a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/kubernetes/slides/' target='_blank'>Kubernetes</a></p>
+      <p>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/kubernetes/slides/' target='_blank'>Cours</a>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/kubernetes/slides/slides.pdf' target='_blank'>Cours pdf</a>
      </p>
      <p><a class="btn btn-primary btn-lg" href='https://git.arnaudmorin.fr/arnaud/trainings/src/branch/main/kubernetes/training/lessons' target='_blank'>TP</a></p>
      <h1>OpenTofu / Terraform</h1>
-      <p><a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/terraform/slides/' target='_blank'>Terraform</a></p>
+      <p>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/terraform/slides/' target='_blank'>Cours</a>
        <a class="btn btn-primary btn-lg" href='https://www.arnaudmorin.fr/trainings/terraform/slides/slides.pdf' target='_blank'>Cours pdf</a>
      </p>
      <p><a class="btn btn-primary btn-lg" href='https://git.arnaudmorin.fr/arnaud/trainings/src/branch/main/terraform/training/101.md' target='_blank'>TP 101</a></p>
      <p><a class="btn btn-primary btn-lg" href='https://git.arnaudmorin.fr/arnaud/trainings/src/branch/main/terraform/training/102.md' target='_blank'>TP 102</a></p>
      <p><a class="btn btn-primary btn-lg" href='https://git.arnaudmorin.fr/arnaud/trainings/src/branch/main/terraform/training/103.md' target='_blank'>TP 103</a></p>
-      <h1>Bonus - Bootstrap OpenStack</h1>
+      <h1>CTF</h1>
-      <p><a class="btn btn-primary btn-lg" href='https://github.com/arnaudmorin/bootstrap-openstack-k8s' target='_blank'>Bootstrap OS on K8S</a></p>
+      <p><a class="btn btn-primary btn-lg" href='https://github.com/arnaudmorin/isen-nuclear-cloud-ctf' target='_blank'>Nuclear CTF</a></p>
-  
+
      <!--
      <h1>QCM</h1>
      <p><a class="btn btn-primary btn-lg" href='https://git.arnaudmorin.fr/arnaud/trainings/src/branch/main/qcm/' target='_blank'>QCM</a></p>
--- a/kubernetes/slides/slides.pdf
+++ b/kubernetes/slides/slides.pdf
--- a/qcm/.gitignore
+++ b/qcm/.gitignore
@@ -0,0 +1,2 @@
 *.md
 *.pdf
--- a/qcm/2025.md.gpg
+++ b/qcm/2025.md.gpg
--- a/qcm/2026-for-pdf.md.gpg
+++ b/qcm/2026-for-pdf.md.gpg
--- a/qcm/2026.md.gpg
+++ b/qcm/2026.md.gpg
--- a/qcm/2026.pdf.gpg
+++ b/qcm/2026.pdf.gpg
--- a/qcm/build.sh
+++ b/qcm/build.sh
@@ -0,0 +1,2 @@
 # need apt-get install pandoc textlive-latex-recommended
 pandoc 2026-for-pdf.md -o 2026.pdf --pdf-engine=pdflatex -V lang=fr && pdfinfo 2026.pdf | grep Pages
--- a/qcm/cipher.sh
+++ b/qcm/cipher.sh
@@ -0,0 +1,10 @@
 #!/bin/bash
 find . -name '*.md' | while read f ; do
  echo "Ciiphering $f"
  cat $f | gpg -e -r arnaud@mailops.fr -r arnaud.choupinette@mailops.fr -r arnaud.morin@gmail.com > $f.gpg
 done
 find . -name '*.pdf' | while read f ; do
  echo "Ciiphering $f"
  cat $f | gpg -e -r arnaud@mailops.fr -r arnaud.choupinette@mailops.fr -r arnaud.morin@gmail.com > $f.gpg
 done
--- a/qcm/final.md
+++ b/qcm/final.md
@@ -1,38 +0,0 @@
 # QCM
 ## Cloud et OpenStack
 1.  Citez quelques avantages de la virtualisation
 2. Expliquez la différence entre Espace Utilisateur et Espace Noyau
 3. Qu'apporte le Cloud en plus par rapport à la simple virtualisation ?
 4. Donnez quelques exemples de fournisseurs de Public Cloud en France
 5. Qu'est ce qu'une instance ?
 6. Citez les principaux modules qui composent le projet OpenStack ?
 ## Ansible
 1. Qu’est qu’Ansible ?
 2. Expliquez le paradigme de « pet versus cattle » ?
 3. Qu’est ce que l’idempotence ?
 4. Donnez la commande pour exécuter le module ping sur le host 10.1.2.3
 5. Expliquez ce que sont les playbooks, les roles, les tasks, les modules dans l’univers d’ansible
 6. Qu’est ce qu’un fact ?
 7. Connaissez vous d’autres logiciels similaires a ansible ?
 ## Git
 1. Décrivez brièvement ce qu’est Git ?
 2. Donnez un exemple de commande Git pour cloner un dépôt de code
 3. Quelle est, généralement, le nom de la branche principale ?
 4. Savez vous qui a invente  Git ?
 5. Connaissez vous d’autres logiciels similaires a Git ?
 6. Avec quelle commande pourriez vous voir l’historique des changements sur un dépôt Git ?
 7. Attention, plus difficile, avec quelle commande pourriez vous trouver quand a été changée une ligne dans un fichier (et par qui) ?
 ## Docker
 1. Quelle est la difference entre un container et une machine virtuelle ?
 2. Comment lister les containers dockers sur une machine ?
 3. Connaissez vous d'autres technologies de containerisation sur linux ?
 ## Kubernetes
 1. A quoi sert kubernetes ?
 2. Expliquez ce qu'est un pod
 ## Terraform
 1. A quoi sert Terraform ?
--- a/qcm/uncipher.sh
+++ b/qcm/uncipher.sh
@@ -0,0 +1,7 @@
 #!/bin/bash
 find . -name '*.gpg' | while read f ; do
  echo "Unciphering $f"
  n=${f%.gpg}
  cat $f | gpg -d > $n
 done
--- a/terraform/slides/index.html
+++ b/terraform/slides/index.html
@@ -7,7 +7,7 @@
        <title>Terraform</title>
        <link rel="stylesheet" href="css/reveal.css">
-        <link rel="stylesheet" href="css/theme/black.css">
+        <link rel="stylesheet" href="css/theme/white.css">
        <!-- Theme used for syntax highlighting of code -->
        <link rel="stylesheet" href="lib/css/zenburn.css">
--- a/terraform/slides/lib/css/zenburn.css
+++ b/terraform/slides/lib/css/zenburn.css
@@ -9,8 +9,10 @@ based on dark.css by Ivan Sagalaev
  display: block;
  overflow-x: auto;
  padding: 0.5em;
  /*
  background: #3f3f3f;
  color: #dcdcdc;
  */
 }
 .hljs-keyword,
--- a/terraform/slides/slides.pdf
+++ b/terraform/slides/slides.pdf
--- a/terraform/training/104/.gitignore
+++ b/terraform/training/104/.gitignore
@@ -0,0 +1,4 @@
 *.tf
 *.tfstat*
 .terraform.lock.hcl
 .terraform
--- a/terraform/training/104/cipher.sh
+++ b/terraform/training/104/cipher.sh
@@ -0,0 +1,6 @@
 #!/bin/bash
 ls -1 *.tf | while read f ; do
  echo "Ciiphering $f"
  cat $f | gpg -e -r arnaud@mailops.fr -r arnaud.choupinette@mailops.fr -r arnaud.morin@gmail.com > $f.gpg
 done
--- a/terraform/training/104/main.tf.gpg
+++ b/terraform/training/104/main.tf.gpg
--- a/terraform/training/104/provider.tf.gpg
+++ b/terraform/training/104/provider.tf.gpg
--- a/terraform/training/104/uncipher.sh
+++ b/terraform/training/104/uncipher.sh
@@ -0,0 +1,7 @@
 #!/bin/bash
 ls -1 *.gpg | while read f ; do
  echo "Unciphering $f"
  n=${f%.gpg}
  cat $f | gpg -d > $n
 done
--- a/terraform/training/105.md
+++ b/terraform/training/105.md
@@ -0,0 +1,6 @@
 # Pulumi 105
 Terraform is not the only software used to do `infrastructure as code`.
 Another well known tool is called `pulumi`.
 So your next challenge is to spawn a `demo-flask` app within your `openstack` or `kubernetes` using `pulumi`!
--- a/terraform/training/105/.gitignore
+++ b/terraform/training/105/.gitignore
@@ -0,0 +1 @@
 *.py
--- a/terraform/training/105/README.md
+++ b/terraform/training/105/README.md
@@ -0,0 +1,20 @@
 # Install
 Taken from https://www.pulumi.com/docs/iac/get-started/kubernetes/
 ```
 curl -fsSL https://get.pulumi.com | sh
 export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
 pulumi login --local
 pulumi new kubernetes-python -g
 pulumi install
 pulumi stack init
 # Edit __main__.py
 ```
 # Run
 ```bash
 pulumi up
 pulumi down
 ```
--- a/terraform/training/105/main.py.gpg
+++ b/terraform/training/105/main.py.gpg
--- a/terraform/training/105/cipher.sh
+++ b/terraform/training/105/cipher.sh
@@ -0,0 +1,6 @@
 #!/bin/bash
 ls -1 *.py | while read f ; do
  echo "Ciiphering $f"
  cat $f | gpg -e -r arnaud@mailops.fr -r arnaud.choupinette@mailops.fr -r arnaud.morin@gmail.com > $f.gpg
 done
--- a/terraform/training/105/uncipher.sh
+++ b/terraform/training/105/uncipher.sh
@@ -0,0 +1,7 @@
 #!/bin/bash
 ls -1 *.gpg | while read f ; do
  echo "Unciphering $f"
  n=${f%.gpg}
  cat $f | gpg -d > $n
 done
--- a/userdata/README.md
+++ b/userdata/README.md
@@ -1,9 +1,8 @@
 # Create jumps
 ```bash
-# NOTE(arnaud) we need large for the kubernetes ex.
+# NOTE(arnaud) we need c3-16 for the kubernetes ex.
 c=20
 #openstack server create --user-data isen-postinstall.sh --min $c --max $c --flavor large --image 'Debian 12' --net public --key-name arnaud-choupinette isen
 openstack server create --user-data isen-postinstall.sh --min $c --max $c --flavor c3-16 --image 'Debian 12' --net Ext-Net --key-name arnaud-choupinette isen
 ```
--- a/userdata/isen-postinstall.sh
+++ b/userdata/isen-postinstall.sh
@@ -91,7 +91,7 @@ export OS_PASSWORD=changeme
 export OS_PROJECT_NAME=${isen}
 export OS_USER_DOMAIN_NAME=Default
 export OS_PROJECT_DOMAIN_NAME=Default
-export OS_AUTH_URL=http://keystone.54.36.119.253.xip.opensteak.fr/v3
+export OS_AUTH_URL=http://keystone.51.89.228.117.xip.opensteak.fr/v3
 export OS_IDENTITY_API_VERSION=3
 export debian_chroot=${isen}_user1
 EOF
Author	SHA1	Message	Date
Arnaud M.	3727f4d8a0	up qcm Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-28 23:35:23 +01:00
Arnaud M.	ac8d0089dc	Add pdf Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-28 23:06:51 +01:00
Arnaud M.	25732c5738	Add 2026 exam Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-28 21:54:15 +01:00
Arnaud M.	204eb9b519	Add pulumi Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-20 12:32:46 +01:00
Arnaud M.	cea9007bb3	Add reponse for 104 Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-20 11:12:36 +01:00
Arnaud M.	4ae5f972a7	Add 105 Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-20 09:35:12 +01:00
arnaud	f6c7af8155	Fix code color to be white instead of black Signed-off-by: arnaud <arnaud.canards@mailops.fr>	2026-01-20 07:28:06 +00:00
Arnaud M.	5691e32226	Force a password change Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-14 23:16:43 +01:00
Arnaud M.	3b23929f03	Add nuclear CTF link Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-10 19:12:41 +01:00
Arnaud M.	4b59d7bcf6	Cleanup Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-10 15:38:13 +01:00
Arnaud M.	ae7927f29c	Cleanup before starting docker TP Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-04 01:14:36 +01:00
Arnaud M.	10d5ad7ead	Add Q for user-data Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-04 00:57:16 +01:00
Arnaud M.	0a91c7b40a	Add solution to install demo-flask Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-04 00:51:02 +01:00
Arnaud M.	3dbfd03caa	Update skyline Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-04 00:40:33 +01:00
Arnaud M.	b47777a7a6	Add coucou to ssh ansible Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-03 13:02:59 +01:00
Arnaud M.	9713e6163c	Switch to new openstack Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-03 12:52:13 +01:00
Arnaud M.	a0d01b39b2	Add demo-flask Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-03 00:03:55 +01:00
Arnaud M.	13c526337a	Add userdata Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-03 00:03:13 +01:00
Arnaud M.	27cbed1241	Replace qemu/kvm with logos Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-02 23:51:20 +01:00
Arnaud M.	0af85bfc0b	Update index to fit last cours Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-02 23:38:41 +01:00
Arnaud M.	80bf8ecedb	Add missing pdf slides Signed-off-by: Arnaud M. <arnaud.choupinette@mailops.fr>	2026-01-02 23:32:59 +01:00
		`@@ -0,0 +1,2 @@`
							`# need apt-get install pandoc textlive-latex-recommended`
							`pandoc 2026-for-pdf.md -o 2026.pdf --pdf-engine=pdflatex -V lang=fr && pdfinfo 2026.pdf \| grep Pages`