Add mount plugin

1 files changed, 64 insertions, 0 deletions

diff --git a/vmdb/plugins/mount_plugin.py b/vmdb/plugins/mount_plugin.py
new file mode 100644
index 0000000..4d8b6c1
--- /dev/null
+++ b/vmdb/plugins/mount_plugin.py
@@ -0,0 +1,64 @@
+# Copyright 2017  Lars Wirzenius
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# =*= License: GPL-3+ =*=
+
+
+
+import logging
+import os
+import sys
+import tempfile
+
+import cliapp
+
+import vmdb
+
+
+class MountPlugin(cliapp.Plugin):
+
+    def enable(self):
+        self.app.step_runners.add(MountStepRunner())
+        
+
+class MountStepRunner(vmdb.StepRunnerInterface):
+
+    def get_required_keys(self):
+        return ['mount', 'tag']
+
+    def run(self, step_spec, settings, state):
+        if not hasattr(state, 'mounts'):
+            state.mounts = {}
+
+        device = step_spec['mount']
+        tag = step_spec['tag']
+        if tag in state.mounts:
+            raise Exception('mount tag {} already used'.format(tag))
+
+        mount_point = tempfile.mkdtemp()
+        sys.stdout.write(
+            'Mounting {} ({}) on {}\n'.format(device, tag, mount_point))
+        cliapp.runcmd(['mount', device, mount_point])
+        state.mounts[tag] = mount_point
+
+    def teardown(self, step_spec, settings, state):
+        device = step_spec['mount']
+        tag = step_spec['tag']
+        mount_point = state.mounts[tag]
+        
+        sys.stdout.write(
+            'Unmounting {} ({}) from {}\n'.format(mount_point, tag, device))
+        cliapp.runcmd(['umount', mount_point])
+        os.rmdir(mount_point)