Added systemd-nspawn virtualization detection

Signed-off-by: Zeal Jagannatha <zealjagannatha@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/spec/unit/plugins/linux/virtualization_spec.rb b/spec/unit/plugins/linux/virtualization_spec.rb
index eb67e89b..aea96b13 100644
--- a/spec/unit/plugins/linux/virtualization_spec.rb
+++ b/spec/unit/plugins/linux/virtualization_spec.rb
@@ -40,6 +40,7 @@ describe Ohai::System, "Linux virtualization platform" do
     allow(File).to receive(:exist?).with("/sys/devices/virtual/misc/kvm").and_return(false)
     allow(File).to receive(:exist?).with("/dev/lxd/sock").and_return(false)
     allow(File).to receive(:exist?).with("/var/lib/lxd/devlxd").and_return(false)
+    allow(File).to receive(:exist?).with("/proc/1/environ").and_return(false)
 
     # default the which wrappers to nil
     allow(plugin).to receive(:which).with("lxc-version").and_return(nil)
@@ -627,6 +628,19 @@ CGROUP
     end
   end
 
+  describe "when we are checking for systemd-nspawn" do
+    it "sets nspawn guest if /proc/1/environ has nspawn string in it" do
+      allow(File).to receive(:exist?).with("/proc/self/cgroup").and_return(true)
+      allow(File).to receive(:exist?).with("/proc/1/environ").and_return(false)
+      one_environ = "container=systemd-nspawn_ttys=/dev/pts/0 /dev/pts/1 /dev/pts/2 /dev/pts/3".chomp
+      allow(File).to receive(:read).with("/proc/1/environ").and_return(one_environ)
+      allow(File).to receive(:read).with("/proc/self/cgroup").and_return('')
+      plugin.run
+      expect(plugin[:virtualization][:system]).to eq("nspawn")
+      expect(plugin[:virtualization][:role]).to eq("guest")
+    end
+  end
+
   describe "when we are checking for docker" do
     it "sets docker guest if /proc/self/cgroup exist and there are /docker/<hexadecimal> mounts" do
       self_cgroup = <<-CGROUP