From e919a373097406eaf9821312747b062e8a69a1d3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A9ctor=20Molinero=20Fern=C3=A1ndez?=
 <hector@molinero.dev>
Date: Fri, 12 Jun 2020 00:45:15 +0200
Subject: [PATCH] Omit /dev/, /proc/, /sys/ and /run/ directories

---
 packer/build.pkr.hcl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packer/build.pkr.hcl b/packer/build.pkr.hcl
index 72fc7b5..9547560 100644
--- a/packer/build.pkr.hcl
+++ b/packer/build.pkr.hcl
@@ -88,7 +88,10 @@ build {
         rm -f /etc/ssh/ssh_host_*key*
         rm -f /etc/wireguard/*-*key /etc/wireguard/*-iface
         find /var/lib/apt/lists/ -mindepth 1 -delete
-        find / -type f -regex '.+\.\(dpkg\|ucf\)-\(old\|new\|dist\)' -delete
+        find / -type f -regextype egrep \
+          -regex '.+\.(dpkg|ucf)-(old|new|dist)' \
+          -not -regex '/(dev|proc|sys|run)/.*' \
+          -delete
       EOF
     ]
   }