initial code repo

[stor4nfv.git] / src / ceph / src / ceph-volume / ceph_volume / systemd / systemctl.py

diff --git a/src/ceph/src/ceph-volume/ceph_volume/systemd/systemctl.py b/src/ceph/src/ceph-volume/ceph_volume/systemd/systemctl.py
new file mode 100644 (file)
index 0000000..d5fd0dd
--- /dev/null
+++ b/src/ceph/src/ceph-volume/ceph_volume/systemd/systemctl.py
@@ -0,0 +1,63 @@
+"""
+Utilities to control systemd units
+"""
+from ceph_volume import process
+
+
+def start(unit):
+    process.run(['systemctl', 'start', unit])
+
+
+def stop(unit):
+    process.run(['systemctl', 'stop', unit])
+
+
+def enable(unit):
+    process.run(['systemctl', 'enable', unit])
+
+
+def disable(unit):
+    process.run(['systemctl', 'disable', unit])
+
+
+def mask(unit):
+    process.run(['systemctl', 'mask', unit])
+
+
+def start_osd(id_):
+    return start(osd_unit % id_)
+
+
+def stop_osd(id_):
+    return stop(osd_unit % id_)
+
+
+def enable_osd(id_):
+    return enable(osd_unit % id_)
+
+
+def disable_osd(id_):
+    return disable(osd_unit % id_)
+
+
+def enable_volume(id_, fsid, device_type='lvm'):
+    return enable(volume_unit % (device_type, id_, fsid))
+
+
+def mask_ceph_disk():
+    # systemctl allows using a glob like '*' for masking, but there was a bug
+    # in that it wouldn't allow this for service templates. This means that
+    # masking ceph-disk@* will not work, so we must link the service directly.
+    # /etc/systemd takes precendence regardless of the location of the unit
+    process.run(
+        ['ln', '-sf', '/dev/null', '/etc/systemd/system/ceph-disk@.service']
+    )
+
+
+#
+# templates
+#
+
+osd_unit = "ceph-osd@%s"
+ceph_disk_unit = "ceph-disk@%s"
+volume_unit = "ceph-volume@%s-%s-%s"