updates ios modules to support persistent socket (#21258)

* updates all ios modules to support persistent socket
* adds ios action plugin to connect to device
* adds exec_command() to ios shared module
* fixes ios_config and ios_template local action
* update all unit test cases
* adds base test module for ios module testing

lib/ansible/plugins/action/ios.py

@@ -0,0 +1,96 @@
+#
+# (c) 2016 Red Hat Inc.
+#
+# 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 sys
+import copy
+
+from ansible.plugins.action.normal import ActionModule as _ActionModule
+from ansible.utils.path import unfrackpath
+from ansible.plugins import connection_loader
+from ansible.compat.six import iteritems
+from ansible.module_utils.ios import ios_argument_spec
+from ansible.module_utils.basic import AnsibleFallbackNotFound
+from ansible.module_utils._text import to_bytes
+
+class ActionModule(_ActionModule):
+
+    def run(self, tmp=None, task_vars=None):
+
+        self.load_provider()
+
+        provider = self._task.args['provider']
+
+        pc = copy.deepcopy(self._play_context)
+        pc.connection = 'network_cli'
+        pc.port = provider['port'] or self._play_context.port
+        pc.remote_user = provider['username'] or self._play_context.connection_user
+        pc.password = provider['password'] or self._play_context.password
+        pc.become = provider['authorize'] or False
+        pc.become_pass = provider['auth_pass']
+
+        socket_path = self._get_socket_path(pc)
+        if not os.path.exists(socket_path):
+            # start the connection if it isn't started
+            connection = self._shared_loader_obj.connection_loader.get('persistent', pc, sys.stdin)
+            connection.exec_command('EXEC: show version')
+
+        task_vars['ansible_socket'] = socket_path
+
+        if self._play_context.become_method == 'enable':
+            self._play_context.become = False
+            self._play_context.become_method = None
+
+        return super(ActionModule, self).run(tmp, task_vars)
+
+    def _get_socket_path(self, play_context):
+        ssh = connection_loader.get('ssh', class_only=True)
+        cp = ssh._create_control_path(play_context.remote_addr, play_context.port, play_context.remote_user)
+        path = unfrackpath("$HOME/.ansible/pc")
+        return cp % dict(directory=path)
+
+    def load_provider(self):
+        provider = self._task.args.get('provider', {})
+        for key, value in iteritems(ios_argument_spec):
+            if key in self._task.args:
+                provider[key] = self._task.args[key]
+            elif 'fallback' in value:
+                provider[key] = self._fallback(value['fallback'])
+            elif key not in provider:
+                provider[key] = None
+        self._task.args['provider'] = provider
+
+    def _fallback(self, fallback):
+        strategy = fallback[0]
+        args = []
+        kwargs = {}
+
+        for item in fallback[1:]:
+            if isinstance(item, dict):
+                kwargs = item
+            else:
+                args = item
+        try:
+            return strategy(*args, **kwargs)
+        except AnsibleFallbackNotFound:
+            pass
+
+

lib/ansible/plugins/action/ios_config.py

@@ -1,5 +1,5 @@
 #
-# Copyright 2015 Peter Sprygada <psprygada@ansible.com>
+# (c) 2017, Red Hat, Inc.
 #
 # This file is part of Ansible
 #
@@ -19,9 +19,94 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-from ansible.plugins.action.net_config import ActionModule as _ActionModule
+import os
+import re
+import time
+import glob
+
+from ansible.plugins.action.ios import ActionModule as _ActionModule
+from ansible.module_utils._text import to_text
+from ansible.module_utils.six.moves.urllib.parse import urlsplit
+from ansible.utils.vars import merge_hash
+
+PRIVATE_KEYS_RE = re.compile('__.+__')
+
 
 class ActionModule(_ActionModule):
-    pass
 
+    def run(self, tmp=None, task_vars=None):
 
+        if self._task.args.get('src'):
+            try:
+                self._handle_template()
+            except ValueError as exc:
+                return dict(failed=True, msg=exc.message)
+
+        result = super(ActionModule, self).run(tmp, task_vars)
+
+        if self._task.args.get('backup') 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.
+            filepath = self._write_backup(task_vars['inventory_hostname'],
+                                          result['__backup__'])
+
+            result['backup_path'] = filepath
+
+        # strip out any keys that have two leading and two trailing
+        # underscore characters
+        for key in result.keys():
+            if PRIVATE_KEYS_RE.match(key):
+                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)
+        return filename
+
+    def _handle_template(self):
+        src = self._task.args.get('src')
+        working_path = self._get_working_path()
+
+        if os.path.isabs(src) or 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):
+            raise ValueError('path specified in src not found')
+
+        try:
+            with open(source, 'r') as f:
+                template_data = to_text(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)
+            if hasattr(self._task, "_block:"):
+                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)

lib/ansible/plugins/action/ios_template.py

@@ -1,5 +1,5 @@
 #
-# (c) 2016 Red Hat Inc.
+# Copyright 2015 Peter Sprygada <psprygada@ansible.com>
 #
 # This file is part of Ansible
 #
@@ -19,7 +19,84 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-from ansible.plugins.action.net_template import ActionModule as _ActionModule
+import os
+import time
+import glob
+import urlparse
+
+from ansible.module_utils._text import to_text
+from ansible.plugins.action.ios import ActionModule as _ActionModule
 
 class ActionModule(_ActionModule):
-    pass
+
+    def run(self, tmp=None, task_vars=None):
+
+        try:
+            self._handle_template()
+        except (ValueError, AttributeError) as exc:
+            return dict(failed=True, msg=exc.message)
+
+        result = super(ActionModule, self).run(tmp, task_vars)
+
+        if self._task.args.get('backup') 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 '__backup__' in result:
+            del result['__backup__']
+
+        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 _handle_template(self):
+        src = self._task.args.get('src')
+        if not src:
+            raise ValueError('missing required arguments: 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_text(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)
+            if hasattr(self._task, "_block:"):
+                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)