diff --git a/kubernetes/training/lessons/.gitignore b/kubernetes/training/lessons/.gitignore
new file mode 100644
index 0000000..1cda54b
--- /dev/null
+++ b/kubernetes/training/lessons/.gitignore
@@ -0,0 +1 @@
+*.yml
diff --git a/kubernetes/training/lessons/1-k8s101.md b/kubernetes/training/lessons/1-k8s101.md
index 7379b7b..d57aed2 100644
--- a/kubernetes/training/lessons/1-k8s101.md
+++ b/kubernetes/training/lessons/1-k8s101.md
@@ -14,7 +14,7 @@ kubectl get nodes
 ```
 ```
 NAME         STATUS   ROLES                  AGE    VERSION
-ansible101   Ready    control-plane,master   100s   v1.22.5+k3s1
+isen-x       Ready    control-plane,master   100s   v1.22.5+k3s1
 ```
 `k3s` will use your server as `control-plane` but also as `worker` (master)
 
diff --git a/kubernetes/training/lessons/cipher.sh b/kubernetes/training/lessons/cipher.sh
new file mode 100755
index 0000000..31375d9
--- /dev/null
+++ b/kubernetes/training/lessons/cipher.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+find . -name '*.yml' | 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
diff --git a/kubernetes/training/lessons/deployment.yml.gpg b/kubernetes/training/lessons/deployment.yml.gpg
new file mode 100644
index 0000000..1ce8da0
Binary files /dev/null and b/kubernetes/training/lessons/deployment.yml.gpg differ
diff --git a/kubernetes/training/lessons/uncipher.sh b/kubernetes/training/lessons/uncipher.sh
new file mode 100755
index 0000000..5373645
--- /dev/null
+++ b/kubernetes/training/lessons/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