adds action plugin for working with network configuration files

This adds a action plugin that will allow config and template modules
to be merged into a single module.  Once completed this will supercede
the net_template action plugin.

lib/ansible/plugins/action/ios_config.py

@@ -0,0 +1,28 @@
+#
+# Copyright 2015 Peter Sprygada <psprygada@ansible.com>
+#
+# This file is part of Ansible
+#
+# Ansible 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.
+#
+# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.
+#
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+from ansible.plugins.action import ActionBase
+from ansible.plugins.action.net_config import ActionModule as NetActionModule
+
+class ActionModule(NetActionModule, ActionBase):
+    pass
+
+

lib/ansible/plugins/action/net_config.py

@@ -0,0 +1,123 @@
+#
+# Copyright 2015 Peter Sprygada <psprygada@ansible.com>
+#
+# This file is part of Ansible
+#
+# Ansible 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.
+#
+# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.
+#
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+import os
+import time
+import glob
+import urlparse
+
+from ansible.plugins.action import ActionBase
+from ansible.utils.unicode import to_unicode
+
+class ActionModule(ActionBase):
+
+    TRANSFERS_FILES = False
+
+    def run(self, tmp=None, task_vars=None):
+        result = super(ActionModule, self).run(tmp, task_vars)
+        result['changed'] = False
+
+        if self._task.args.get('src'):
+            try:
+                self._handle_template()
+            except ValueError as exc:
+                return dict(failed=True, msg=exc.message)
+
+        result.update(self._execute_module(module_name=self._task.action,
+            module_args=self._task.args, task_vars=task_vars))
+
+        if self._task.args.get('backup_config') and result.get('__backup__'):
+            # User requested backup and no error occurred in module.
+            # NOTE: If there is a parameter error, _backup key may not be in results.
+            self._write_backup(task_vars['inventory_hostname'], result['__backup__'])
+
+        if self._task.args.get('dest') and result.get('__config__'):
+            self._write_dest(self._task.args['dest'], result['__config__'],
+                             append=self._task.args['append'])
+
+        for key in ['__config__', '__backup__']:
+            if key in result:
+                del result[key]
+
+        return result
+
+    def _get_working_path(self):
+        cwd = self._loader.get_basedir()
+        if self._task._role is not None:
+            cwd = self._task._role._role_path
+        return cwd
+
+    def _write_backup(self, host, contents):
+        backup_path = self._get_working_path() + '/backup'
+        if not os.path.exists(backup_path):
+            os.mkdir(backup_path)
+        for fn in glob.glob('%s/%s*' % (backup_path, host)):
+            os.remove(fn)
+        tstamp = time.strftime("%Y-%m-%d@%H:%M:%S", time.localtime(time.time()))
+        filename = '%s/%s_config.%s' % (backup_path, host, tstamp)
+        open(filename, 'w').write(contents)
+
+    def _write_dest(self, path, contents, append=False):
+        dirpath = os.path.dirname(path)
+        if not dirpath[0] == '/':
+            dirpath = self._get_working_path() + dirpath
+        if not os.path.exists(dirpath):
+            os.mkdir(dirpath)
+        if append:
+            flags = 'a'
+        else:
+            flags = 'w'
+        open(path, flags).write(contents)
+
+    def _handle_template(self):
+        src = self._task.args.get('src')
+        working_path = self._get_working_path()
+
+        if os.path.isabs(src) or urlparse.urlsplit('src').scheme:
+            source = src
+        else:
+            source = self._loader.path_dwim_relative(working_path, 'templates', src)
+            if not source:
+                source = self._loader.path_dwim_relative(working_path, src)
+
+        if not os.path.exists(source):
+            return
+
+        try:
+            with open(source, 'r') as f:
+                template_data = to_unicode(f.read())
+        except IOError:
+            return dict(failed=True, msg='unable to load src file')
+
+        # Create a template search path in the following order:
+        # [working_path, self_role_path, dependent_role_paths, dirname(source)]
+        searchpath = [working_path]
+        if self._task._role is not None:
+            searchpath.append(self._task._role._role_path)
+            dep_chain = self._task._block.get_dep_chain()
+            if dep_chain is not None:
+                for role in dep_chain:
+                    searchpath.append(role._role_path)
+        searchpath.append(os.path.dirname(source))
+        self._templar.environment.loader.searchpath = searchpath
+        self._task.args['src'] = self._templar.template(template_data)
+
+