From e23ba59267423a3ca67747dcdfd8884c9d5f7de8 Mon Sep 17 00:00:00 2001
From: David Runge <dave@sleepmap.de>
Date: Sun, 9 Dec 2018 13:27:35 +0100
Subject: bin/realtime-suggestions: Adding check for
 virtualization/containerization.

---
 bin/realtime-suggestions | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/bin/realtime-suggestions b/bin/realtime-suggestions
index cc552fe..c5e7355 100755
--- a/bin/realtime-suggestions
+++ b/bin/realtime-suggestions
@@ -2,6 +2,7 @@
 
 set -euo pipefail
 
+warning="WARNING:"
 change="CHANGE:"
 info="INFO:"
 kernel_config="/proc/config.gz"
@@ -21,6 +22,20 @@ check_kernel_name() {
   fi
 }
 
+check_virtualization() {
+  local virt_type=""
+  if command -v systemd-detect-virt >/dev/null 2>&1; then
+    set +e
+    virt_type=$(systemd-detect-virt)
+    set -e
+    if systemd-detect-virt -q; then
+      echo "$change Running in a virtual machine or container (type: ${virt_type}). This is not recommended!" 
+    fi
+  else
+    echo "$warning Unable to detect if in a virtual machine."
+  fi
+}
+
 check_filesystems() {
   local mount_points=()
   local mount_point_data=()
@@ -207,6 +222,7 @@ check_for_useful_tools() {
 
 check_kernel_name
 check_root
+check_virtualization
 check_filesystems
 check_groups
 check_ulimits
-- 
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