Module provides support for manipulating openvswitch tables

network/openvswitch_db.py

@@ -0,0 +1,129 @@
+#!/usr/bin/python
+# coding: utf-8 -*-
+
+# pylint: disable=C0111
+
+#
+# (c) 2015, Mark Hamilton <mhamilton@vmware.com>
+#
+# Portions copyright @ 2015 VMware, Inc.
+#
+# This file is part of Ansible
+#
+# This module 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 software 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 software.  If not, see <http://www.gnu.org/licenses/>.
+
+DOCUMENTATION = """
+---
+module: openvswitch_db
+author: "Mark Hamilton (mhamilton@vmware.com)"
+version_added: 2.0
+short_description: Configure open vswitch database.
+requirements: [ "ovs-vsctl >= 2.3.3" ]
+description:
+    - Set column values in record in database table.
+options:
+    table:
+        required: true
+        description:
+            - Identifies the table in the database.
+    record:
+        required: true
+        description:
+            - Identifies the recoard in the table.
+    column:
+        required: true
+        description:
+            - Identifies the column in the record.
+    key:
+        required: true
+        description:
+            - Identifies the key in the record column
+    value:
+        required: true
+        description:
+            - Expected value for the table, record, column and key.
+    timeout:
+        required: false
+        default: 5
+        description:
+            - How long to wait for ovs-vswitchd to respond
+"""
+
+DOCUMENTATION = __doc__
+
+EXAMPLES = '''
+# Increase the maximum idle time to 50 seconds before pruning unused kernel
+# rules.
+- openvswitch_db: table=open_vswitch record=. col=other_config key=max-idle
+                  value=50000
+
+# Disable in band
+- openvswitch_db: table=Bridge record=br-int col=other_config
+                  key=disable-in-band value=true
+'''
+
+
+def cmd_run(module, cmd, check_rc=True):
+    """ Log and run ovs-vsctl command. """
+    return module.run_command(cmd.split(" "), check_rc=check_rc)
+
+
+def params_set(module):
+    """ Implement the ovs-vsctl set commands. """
+
+    changed = False
+
+    fmt = "ovs-vsctl -t %(timeout)s get %(table)s %(record)s %(col)s:%(key)s"
+
+    cmd = fmt % module.params
+
+    (_, output, _) = cmd_run(module, cmd, False)
+    if module.params['value'] not in output:
+        fmt = "ovs-vsctl -t %(timeout)s set %(table)s %(record)s " \
+              "%(col)s:%(key)s=%(value)s"
+        cmd = fmt % module.params
+        ##
+        # Check if flow exists and is the same.
+        (rtc, _, err) = cmd_run(module, cmd)
+        if rtc != 0:
+            module.fail_json(msg=err)
+        changed = True
+    module.exit_json(changed=changed)
+
+
+# pylint: disable=E0602
+def main():
+    """ Entry point for ansible module. """
+    module = AnsibleModule(
+        argument_spec={
+            'table': {'required': True},
+            'record': {'required': True},
+            'col': {'required': True},
+            'key': {'required': True},
+            'value': {'required': True},
+            'timeout': {'default': 5, 'type': 'int'},
+        },
+        supports_check_mode=True,
+    )
+
+    params_set(module)
+
+
+# pylint: disable=W0614
+# pylint: disable=W0401
+# pylint: disable=W0622
+
+# import module snippets
+from ansible.module_utils.basic import *
+main()