From 1d8134f2d634809130a263ff1c4a62b89de294fa Mon Sep 17 00:00:00 2001
From: Gregory Colpart <gcolpart+git@evolix.fr>
Date: Thu, 27 Oct 2022 18:21:50 +0200
Subject: [PATCH] on utilise linux-image-cloud-amd64 sur les VMs

---
 HowtoDebian/Install.md | 8 ++++++++
 HowtoVarnish.md        | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/HowtoDebian/Install.md b/HowtoDebian/Install.md
index 77875b3f..cb007f10 100644
--- a/HowtoDebian/Install.md
+++ b/HowtoDebian/Install.md
@@ -293,3 +293,11 @@ ADMIN ALL=NOPASSWD: MAINT
 ~~~
 trap "sudo /usr/share/scripts/evomaintenance.sh" 0
 ~~~
+
+* Si l'on est sur une machine virtuelle (VM), on remplace le kernel par défaut par un kernel « Cloud » :
+
+~~~
+# apt install linux-image-cloud-amd64
+# apt remove linux-image-amd64
+# reboot
+~~~
diff --git a/HowtoVarnish.md b/HowtoVarnish.md
index 4c64dab7..2c0ad87e 100644
--- a/HowtoVarnish.md
+++ b/HowtoVarnish.md
@@ -178,6 +178,14 @@ sub vcl_backend_response {
      set beresp.ttl = 3600s;
   }
 }
+
+sub vcl_deliver {
+  if (resp.http.X-Varnish ~ "[0-9]+ +[0-9]+") {
+    set resp.http.X-Cache = "HIT";
+  } else {
+    set resp.http.X-Cache = "MISS";
+  }
+}
 ~~~