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-rw-r--r--contrail-openstack/hooks/charmhelpers/core/kernel_factory/centos.py17
1 files changed, 17 insertions, 0 deletions
diff --git a/contrail-openstack/hooks/charmhelpers/core/kernel_factory/centos.py b/contrail-openstack/hooks/charmhelpers/core/kernel_factory/centos.py
new file mode 100644
index 0000000..1c402c1
--- /dev/null
+++ b/contrail-openstack/hooks/charmhelpers/core/kernel_factory/centos.py
@@ -0,0 +1,17 @@
+import subprocess
+import os
+
+
+def persistent_modprobe(module):
+ """Load a kernel module and configure for auto-load on reboot."""
+ if not os.path.exists('/etc/rc.modules'):
+ open('/etc/rc.modules', 'a')
+ os.chmod('/etc/rc.modules', 111)
+ with open('/etc/rc.modules', 'r+') as modules:
+ if module not in modules.read():
+ modules.write('modprobe %s\n' % module)
+
+
+def update_initramfs(version='all'):
+ """Updates an initramfs image."""
+ return subprocess.check_call(["dracut", "-f", version])