1 files changed, 21 insertions, 0 deletions
diff --git a/grid5000/steps/data/setup/puppet/modules/env/manifests/base/disable_nvme_multipath.pp b/grid5000/steps/data/setup/puppet/modules/env/manifests/base/disable_nvme_multipath.pp
new file mode 100644
index 0000000..f1fb18a
--- /dev/null
+++ b/grid5000/steps/data/setup/puppet/modules/env/manifests/base/disable_nvme_multipath.pp
@@ -0,0 +1,21 @@
+# Disable multipath support in the NVMe driver.
+#
+# Multipath makes the device name unpredictable (e.g. nvme0n1 vs nvme1n1
+# when there are two NVMe drives), see https://intranet.grid5000.fr/bugzilla/show_bug.cgi?id=12958
+#
+# Multipath also creates a fake device node (e.g. nvme0c65n1) that messes up with g5k-checks:
+#
+# https://intranet.grid5000.fr/bugzilla/show_bug.cgi?id=12962
+# https://intranet.grid5000.fr/bugzilla/show_bug.cgi?id=12955
+
+class env::base::disable_nvme_multipath {
+  file {
+    '/etc/modprobe.d/disable_nvme_multipath.conf' :
+      ensure  => file,
+      owner   => root,
+      group   => root,
+      mode    => '0644',
+      content => "options nvme_core multipath=off\n",
+      notify  => Exec['generate_initramfs'];
+  }
+}