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Diffstat (limited to 'plugins/cliconf/vyos.py')
| -rw-r--r-- | plugins/cliconf/vyos.py | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/plugins/cliconf/vyos.py b/plugins/cliconf/vyos.py new file mode 100644 index 0000000..3033603 --- /dev/null +++ b/plugins/cliconf/vyos.py @@ -0,0 +1,342 @@ +# +# (c) 2017 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 + +DOCUMENTATION = """ +--- +author: Ansible Networking Team +cliconf: vyos +short_description: Use vyos cliconf to run command on VyOS platform +description: + - This vyos plugin provides low level abstraction apis for + sending and receiving CLI commands from VyOS network devices. +version_added: "2.4" +""" + +import re +import json + +from ansible.errors import AnsibleConnectionFailure +from ansible.module_utils._text import to_text +from ansible.module_utils.common._collections_compat import Mapping +from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.config import ( + NetworkConfig, +) +from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.utils import ( + to_list, +) +from ansible.plugins.cliconf import CliconfBase + + +class Cliconf(CliconfBase): + def get_device_info(self): + device_info = {} + + device_info["network_os"] = "vyos" + reply = self.get("show version") + data = to_text(reply, errors="surrogate_or_strict").strip() + + match = re.search(r"Version:\s*(.*)", data) + if match: + device_info["network_os_version"] = match.group(1) + + match = re.search(r"HW model:\s*(\S+)", data) + if match: + device_info["network_os_model"] = match.group(1) + + reply = self.get("show host name") + device_info["network_os_hostname"] = to_text( + reply, errors="surrogate_or_strict" + ).strip() + + return device_info + + def get_config(self, flags=None, format=None): + if format: + option_values = self.get_option_values() + if format not in option_values["format"]: + raise ValueError( + "'format' value %s is invalid. Valid values of format are %s" + % (format, ", ".join(option_values["format"])) + ) + + if not flags: + flags = [] + + if format == "text": + command = "show configuration" + else: + command = "show configuration commands" + + command += " ".join(to_list(flags)) + command = command.strip() + + out = self.send_command(command) + return out + + def edit_config( + self, candidate=None, commit=True, replace=None, comment=None + ): + resp = {} + operations = self.get_device_operations() + self.check_edit_config_capability( + operations, candidate, commit, replace, comment + ) + + results = [] + requests = [] + self.send_command("configure") + for cmd in to_list(candidate): + if not isinstance(cmd, Mapping): + cmd = {"command": cmd} + + results.append(self.send_command(**cmd)) + requests.append(cmd["command"]) + out = self.get("compare") + out = to_text(out, errors="surrogate_or_strict") + diff_config = out if not out.startswith("No changes") else None + + if diff_config: + if commit: + try: + self.commit(comment) + except AnsibleConnectionFailure as e: + msg = "commit failed: %s" % e.message + self.discard_changes() + raise AnsibleConnectionFailure(msg) + else: + self.send_command("exit") + else: + self.discard_changes() + else: + self.send_command("exit") + if ( + to_text( + self._connection.get_prompt(), errors="surrogate_or_strict" + ) + .strip() + .endswith("#") + ): + self.discard_changes() + + if diff_config: + resp["diff"] = diff_config + resp["response"] = results + resp["request"] = requests + return resp + + def get( + self, + command=None, + prompt=None, + answer=None, + sendonly=False, + output=None, + newline=True, + check_all=False, + ): + if not command: + raise ValueError("must provide value of command to execute") + if output: + raise ValueError( + "'output' value %s is not supported for get" % output + ) + + return self.send_command( + command=command, + prompt=prompt, + answer=answer, + sendonly=sendonly, + newline=newline, + check_all=check_all, + ) + + def commit(self, comment=None): + if comment: + command = 'commit comment "{0}"'.format(comment) + else: + command = "commit" + self.send_command(command) + + def discard_changes(self): + self.send_command("exit discard") + + def get_diff( + self, + candidate=None, + running=None, + diff_match="line", + diff_ignore_lines=None, + path=None, + diff_replace=None, + ): + diff = {} + device_operations = self.get_device_operations() + option_values = self.get_option_values() + + if candidate is None and device_operations["supports_generate_diff"]: + raise ValueError( + "candidate configuration is required to generate diff" + ) + + if diff_match not in option_values["diff_match"]: + raise ValueError( + "'match' value %s in invalid, valid values are %s" + % (diff_match, ", ".join(option_values["diff_match"])) + ) + + if diff_replace: + raise ValueError("'replace' in diff is not supported") + + if diff_ignore_lines: + raise ValueError("'diff_ignore_lines' in diff is not supported") + + if path: + raise ValueError("'path' in diff is not supported") + + set_format = candidate.startswith("set") or candidate.startswith( + "delete" + ) + candidate_obj = NetworkConfig(indent=4, contents=candidate) + if not set_format: + config = [c.line for c in candidate_obj.items] + commands = list() + # this filters out less specific lines + for item in config: + for index, entry in enumerate(commands): + if item.startswith(entry): + del commands[index] + break + commands.append(item) + + candidate_commands = [ + "set %s" % cmd.replace(" {", "") for cmd in commands + ] + + else: + candidate_commands = str(candidate).strip().split("\n") + + if diff_match == "none": + diff["config_diff"] = list(candidate_commands) + return diff + + running_commands = [ + str(c).replace("'", "") for c in running.splitlines() + ] + + updates = list() + visited = set() + + for line in candidate_commands: + item = str(line).replace("'", "") + + if not item.startswith("set") and not item.startswith("delete"): + raise ValueError( + "line must start with either `set` or `delete`" + ) + + elif item.startswith("set") and item not in running_commands: + updates.append(line) + + elif item.startswith("delete"): + if not running_commands: + updates.append(line) + else: + item = re.sub(r"delete", "set", item) + for entry in running_commands: + if entry.startswith(item) and line not in visited: + updates.append(line) + visited.add(line) + + diff["config_diff"] = list(updates) + return diff + + def run_commands(self, commands=None, check_rc=True): + if commands is None: + raise ValueError("'commands' value is required") + + responses = list() + for cmd in to_list(commands): + if not isinstance(cmd, Mapping): + cmd = {"command": cmd} + + output = cmd.pop("output", None) + if output: + raise ValueError( + "'output' value %s is not supported for run_commands" + % output + ) + + try: + out = self.send_command(**cmd) + except AnsibleConnectionFailure as e: + if check_rc: + raise + out = getattr(e, "err", e) + + responses.append(out) + + return responses + + def get_device_operations(self): + return { + "supports_diff_replace": False, + "supports_commit": True, + "supports_rollback": False, + "supports_defaults": False, + "supports_onbox_diff": True, + "supports_commit_comment": True, + "supports_multiline_delimiter": False, + "supports_diff_match": True, + "supports_diff_ignore_lines": False, + "supports_generate_diff": False, + "supports_replace": False, + } + + def get_option_values(self): + return { + "format": ["text", "set"], + "diff_match": ["line", "none"], + "diff_replace": [], + "output": [], + } + + def get_capabilities(self): + result = super(Cliconf, self).get_capabilities() + result["rpc"] += [ + "commit", + "discard_changes", + "get_diff", + "run_commands", + ] + result["device_operations"] = self.get_device_operations() + result.update(self.get_option_values()) + return json.dumps(result) + + def set_cli_prompt_context(self): + """ + Make sure we are in the operational cli mode + :return: None + """ + if self._connection.connected: + self._update_cli_prompt_context( + config_context="#", exit_command="exit discard" + ) |