From 2dc4b333a93362ecf1af30047bb81d5c06cabe7d Mon Sep 17 00:00:00 2001
From: Jerome Petazzoni <jerome.petazzoni@gmail.com>
Date: Mon, 29 Apr 2019 18:44:39 -0500
Subject: [PATCH] Use set -u as well

---
 slides/k8s/rollout.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/slides/k8s/rollout.md b/slides/k8s/rollout.md
index e9f9440d..b30a2cbe 100644
--- a/slides/k8s/rollout.md
+++ b/slides/k8s/rollout.md
@@ -80,6 +80,7 @@
 
 - Update `worker` either with `kubectl edit`, or by running:
   ```bash
+  set -u
   export TAG=v0.2
   kubectl set image deploy worker worker=$REGISTRY/worker:$TAG
   ```
@@ -122,6 +123,7 @@ That rollout should be pretty quick. What shows in the web UI?
 
 - Update `worker` by specifying a non-existent image:
   ```bash
+  set -u
   export TAG=v0.3
   kubectl set image deploy worker worker=$REGISTRY/worker:$TAG
   ```