diff options
Diffstat (limited to 'plugins')
| -rw-r--r-- | plugins/cliconf/vyos.py | 82 | ||||
| -rw-r--r-- | plugins/cliconf_utils/__init__.py | 0 | ||||
| -rw-r--r-- | plugins/cliconf_utils/vyosconf.py | 257 | ||||
| -rw-r--r-- | plugins/module_utils/network/vyos/vyos.py | 31 | ||||
| -rw-r--r-- | plugins/modules/vyos_config.py | 302 |
5 files changed, 622 insertions, 50 deletions
diff --git a/plugins/cliconf/vyos.py b/plugins/cliconf/vyos.py index 96c24c15..e693f820 100644 --- a/plugins/cliconf/vyos.py +++ b/plugins/cliconf/vyos.py @@ -17,6 +17,7 @@ # from __future__ import absolute_import, division, print_function + __metaclass__ = type DOCUMENTATION = """ @@ -48,11 +49,13 @@ import re from ansible.errors import AnsibleConnectionFailure from ansible.module_utils._text import to_text from ansible.module_utils.common._collections_compat import Mapping +from ansible.plugins.cliconf import CliconfBase 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_collections.ansible.netcommon.plugins.plugin_utils.cliconf_base import CliconfBase + +from ansible_collections.vyos.vyos.plugins.cliconf_utils.vyosconf import VyosConf class Cliconf(CliconfBase): @@ -122,7 +125,13 @@ class Cliconf(CliconfBase): return out def edit_config( - self, candidate=None, commit=True, replace=None, diff=False, comment=None, confirm=None + self, + candidate=None, + commit=True, + replace=None, + diff=False, + comment=None, + confirm=None, ): resp = {} operations = self.get_device_operations() @@ -240,14 +249,21 @@ class Cliconf(CliconfBase): if path: raise ValueError("'path' in diff is not supported") - set_format = candidate.startswith("set") or candidate.startswith("delete") + first_line = next( + ( + stripped + for stripped in (line.strip() for line in candidate.splitlines()) + if stripped and not stripped.startswith("#") + ), + "", + ) + set_format = first_line.startswith("set") or first_line.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): @@ -259,11 +275,65 @@ class Cliconf(CliconfBase): else: - candidate_commands = str(candidate).strip().split("\n") + candidate_commands = [ + line.strip() + for line in str(candidate).splitlines() + if line.strip() and not line.lstrip().startswith("#") + ] if diff_match == "none": diff["config_diff"] = list(candidate_commands) return diff + if diff_match == "enforce": + if running is None: + raise ValueError( + "diff_match=enforce requires a running configuration to diff against", + ) + + enforce_candidate_lines = list(candidate_commands) + + if not enforce_candidate_lines: + raise ValueError( + "diff_match=enforce received an empty candidate (after stripping blank/" + "comment lines); refusing to treat that as a desired end-state of " + "'delete everything'. Provide 'set' commands describing the desired " + "configuration.", + ) + + for line in enforce_candidate_lines: + tokens = line.strip().split() + if tokens[0] != "set": + raise ValueError( + "diff_match=enforce treats the candidate as the complete desired " + "configuration end-state and only supports 'set' commands; " + "line does not start with 'set' (found: {0!r})".format( + line.strip(), + ), + ) + if len(VyosConf().parse_line(line)[1]) < 1: + raise ValueError( + "diff_match=enforce only supports complete 'set' commands with at least " + "a path and a leaf; got: {0!r}".format(line.strip()), + ) + running_conf = VyosConf( + [ + line + for line in running.splitlines() + if line.strip() and not line.lstrip().startswith("#") + ], + ) + + candidate_conf = VyosConf(enforce_candidate_lines) + diff["config_diff"] = running_conf.diff_commands_to(candidate_conf) + for cmd in diff["config_diff"]: + if re.match(r"^delete\s+service\s+ssh\b", cmd): + raise ValueError( + "diff_match=enforce refuses to generate 'delete service ssh ...' " + "commands, since this could sever the management connection. " + "Remove SSH configuration explicitly with a separate match=line " + "or match=none task instead.", + ) + return diff running_commands = [str(c).replace("'", "") for c in running.splitlines()] @@ -336,7 +406,7 @@ class Cliconf(CliconfBase): def get_option_values(self): return { "format": ["text", "set"], - "diff_match": ["line", "none"], + "diff_match": ["line", "enforce", "none"], "diff_replace": [], "output": [], } diff --git a/plugins/cliconf_utils/__init__.py b/plugins/cliconf_utils/__init__.py new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/plugins/cliconf_utils/__init__.py diff --git a/plugins/cliconf_utils/vyosconf.py b/plugins/cliconf_utils/vyosconf.py new file mode 100644 index 00000000..a3ed6887 --- /dev/null +++ b/plugins/cliconf_utils/vyosconf.py @@ -0,0 +1,257 @@ +# +# 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 re + + +class _KeepExistingSentinel: + """Unique marker for 'preserve whatever's already here' in a diff. + Deliberately not a plain string/value: a real config leaf could + legitimately be "..." (e.g. a description), and a string sentinel + would collide with it. An object identity never can. + """ + + def __repr__(self): + return "<keep-existing>" + + +KEEP_EXISTING_VALUES = _KeepExistingSentinel() + + +class VyosConf: + def __init__(self, commands=None): + self.config = {} + if isinstance(commands, list): + self.run_commands(commands) + + def set_entry(self, path, leaf): + """ + This function sets a value in the configuration given a path. + :param path: list of strings to traverse in the config + :param leaf: value to set at the destination + :return: dict + """ + target = self.config + path = path + [leaf] + for key in path: + if key not in target or not isinstance(target[key], dict): + target[key] = {} + target = target[key] + return self.config + + def del_entry(self, path, leaf): + """ + This function deletes a value from the configuration given a path + and also removes all the parents that are now empty. If the leaf + does not exist at the given path, the configuration is left + unchanged (delete is treated as a no-op, matching VyOS's own + behaviour when deleting a path that isn't set). + :param path: list of strings to traverse in the config + :param leaf: value to delete at the destination + :return: dict + """ + target = self.config + first_no_sibling_key = None + for key in path: + if key not in target: + return self.config + if len(target[key]) <= 1: + if first_no_sibling_key is None: + first_no_sibling_key = [target, key] + else: + first_no_sibling_key = None + target = target[key] + + if leaf not in target: + return self.config + + if first_no_sibling_key is None: + first_no_sibling_key = [target, leaf] + + target = first_no_sibling_key[0] + target_key = first_no_sibling_key[1] + del target[target_key] + return self.config + + def check_entry(self, path, leaf): + """ + This function checks if a value exists in the config. + :param path: list of strings to traverse in the config + :param leaf: value to check for existence + :return: bool + """ + target = self.config + path = path + [leaf] + for key in path: + if key not in target or not isinstance(target[key], dict): + return False + target = target[key] + return True + + def parse_line(self, line): + """ + This function parses a given command from string. + :param line: line to parse + :return: [command, path, leaf] + """ + line = re.match(r"^('(.*)'|\"(.*)\"|([^#\"']*))*", line).group(0).strip() + if not line: + return ["", [], ""] + path = re.findall(r"('.*?'|\".*?\"|\S+)", line) + if not path: + return ["", [], ""] + leaf = path[-1] + if leaf.startswith('"') and leaf.endswith('"'): + leaf = leaf[1:-1] + if leaf.startswith("'") and leaf.endswith("'"): + leaf = leaf[1:-1] + return [path[0], path[1:-1], leaf] + + def run_command(self, command): + """ + This function runs a given command string. + :param command: command to run + :return: dict + """ + [cmd, path, leaf] = self.parse_line(command) + if cmd.startswith("set"): + self.set_entry(path, leaf) + if cmd.startswith("del"): + self.del_entry(path, leaf) + return self.config + + def run_commands(self, commands): + """ + This function runs a list of command strings. + :param commands: commands to run + :return: dict + """ + for c in commands: + self.run_command(c) + return self.config + + def check_command(self, command): + """ + This function checks a command for existence in the config. + :param command: command to check + :return: bool + """ + [cmd, path, leaf] = self.parse_line(command) + if cmd.startswith("set"): + return self.check_entry(path, leaf) + if cmd.startswith("del"): + return not self.check_entry(path, leaf) + return True + + def check_commands(self, commands): + """ + This function checks a list of commands for existence in the config. + :param commands: list of commands to check + :return: [bool] + """ + return [self.check_command(c) for c in commands] + + def quote_key(self, key): + """ + This function adds quotes to key if quotes are needed for correct parsing. + :param key: str to wrap in quotes if needed + :return: str + """ + if len(key) == 0: + return "" + if '"' in key: + return "'" + key + "'" + if "'" in key: + return '"' + key + '"' + if not re.match(r"^[a-zA-Z0-9./-]*$", key): + return "'" + key + "'" + return key + + def build_commands(self, structure=None, nested=False): + """ + This function builds a list of commands to recreate the current configuration. + :return: [str] + """ + if not isinstance(structure, dict): + structure = self.config + if len(structure) == 0: + return [""] if nested else [] + commands = [] + for key, value in structure.items(): + quoted_key = self.quote_key(key) + for c in self.build_commands(value, True): + commands.append((quoted_key + " " + c).strip()) + if nested: + return commands + return ["set " + c for c in commands] + + def diff_to(self, other, structure): + if not isinstance(other, dict): + other = {} + if len(structure) == 0: + return ([], [""]) + if not isinstance(structure, dict): + structure = {} + if len(other) == 0: + return ([""], []) + if len(other) == 0 and len(structure) == 0: + return ([], []) + + toset = [] + todel = [] + for key in structure.keys(): + quoted_key = self.quote_key(key) + if key in other: + # keys in both configs, pls compare subkeys + (subset, subdel) = self.diff_to(other[key], structure[key]) + for s in subset: + toset.append(quoted_key + " " + s) + for d in subdel: + todel.append(quoted_key + " " + d) + else: + # keys only in this, delete if KEEP_EXISTING_VALUES not set + if KEEP_EXISTING_VALUES not in other: + todel.append(quoted_key) + continue # del + for key, value in other.items(): + if key == KEEP_EXISTING_VALUES: + continue + quoted_key = self.quote_key(key) + if key not in structure: + # keys only in other, pls set all subkeys + (subset, subdel) = self.diff_to(other[key], None) + for s in subset: + toset.append(quoted_key + " " + s) + + return (toset, todel) + + def diff_commands_to(self, other): + """ + This function calculates the required commands to change the current into + the given configuration. Only top-level sections present in the desired + configuration are enforced; top-level sections the candidate does not + mention at all are left completely untouched. + :param other: VyosConf + :return: [str] + """ + scoped_structure = {k: v for k, v in self.config.items() if k in other.config} + (toset, todel) = self.diff_to(other.config, scoped_structure) + return ["delete " + c.strip() for c in todel] + ["set " + c.strip() for c in toset] diff --git a/plugins/module_utils/network/vyos/vyos.py b/plugins/module_utils/network/vyos/vyos.py index 92c0f1b8..4983221e 100644 --- a/plugins/module_utils/network/vyos/vyos.py +++ b/plugins/module_utils/network/vyos/vyos.py @@ -27,12 +27,14 @@ # from __future__ import absolute_import, division, print_function + __metaclass__ = type import json from ansible.module_utils._text import to_text from ansible.module_utils.connection import Connection, ConnectionError + _DEVICE_CONFIGS = {} @@ -85,6 +87,30 @@ def get_config(module, flags=None, format=None): return cfg +def copy_file(module, source, destination, proto="scp"): + """Copy a local file to the remote device over the existing network_cli + SSH session, using netcommon's generic connection-level file transfer + RPC (the same mechanism ansible.netcommon.net_put uses). + + Requires the device to have SCP/SFTP reachable over the same SSH + session used for network_cli. Mirrors the calling convention of + cisco.iosxr's module_utils copy_file(module, source, destination, proto), + confirmed against cisco.iosxr's iosxr_config.py call site: + copy_file(module, src, dst, "sftp"). + """ + connection = get_connection(module) + try: + timeout = connection.get_option("persistent_command_timeout") + connection.copy_file( + source=source, + destination=destination, + proto=proto, + timeout=timeout, + ) + except ConnectionError as exc: + module.fail_json(msg=to_text(exc, errors="surrogate_then_replace")) + + def run_commands(module, commands, check_rc=True): connection = get_connection(module) try: @@ -99,7 +125,10 @@ def load_config(module, commands, commit=False, comment=None, confirm=None): try: response = connection.edit_config( - candidate=commands, commit=commit, comment=comment, confirm=confirm + candidate=commands, + commit=commit, + comment=comment, + confirm=confirm, ) except ConnectionError as exc: module.fail_json(msg=to_text(exc, errors="surrogate_then_replace")) diff --git a/plugins/modules/vyos_config.py b/plugins/modules/vyos_config.py index 46e51f3b..53f8e043 100644 --- a/plugins/modules/vyos_config.py +++ b/plugins/modules/vyos_config.py @@ -17,6 +17,7 @@ # from __future__ import absolute_import, division, print_function + __metaclass__ = type @@ -37,6 +38,9 @@ notes: - This module works with connection C(ansible.netcommon.network_cli). See L(the VyOS OS Platform Options,../network/user_guide/platform_vyos.html). - To ensure idempotency and correct diff the configuration lines in the relevant module options should be similar to how they appear if present in the running configuration on device including the indentation. +- C(replace=config) currently has no way to scope its effect to part of the + configuration; it always operates against the entire device configuration. + There is no C(path) parameter to constrain it to a subtree. options: lines: description: @@ -45,6 +49,7 @@ options: device running-config to ensure idempotency and correct diff. Be sure to note the configuration command syntax as some commands are automatically modified by the device config parser. + - Not supported when C(replace) is set to C(config) -- see C(replace) below. type: list elements: str src: @@ -54,18 +59,38 @@ options: file can include Jinja2 template variables. The configuration lines in the source file should be similar to how it will appear if present in the running-configuration of the device including indentation to ensure idempotency and correct diff. + - When C(replace) is set to C(config), C(src) is required and must contain a + complete configuration in hierarchical/bracket format -- the same format + produced by C(show configuration) or found in C(/config/config.boot). Flat + C(set)/C(delete) command format (as produced by C(show configuration + commands)) is not accepted in that mode; VyOS's native C(load) command + rejects it with a parse error. type: path match: description: - The C(match) argument controls the method used to match against the current active configuration. By default, the desired config is matched against the active config and the deltas are loaded. If the C(match) argument is set to - C(none) the active configuration is ignored and the configuration is always - loaded. + C(none), the active configuration is ignored and the configuration is always + loaded. If the C(match) argument is set to C(enforce), the supplied C(lines) + or C(src) are treated as the complete desired end-state of the configuration, + rather than a set of deltas to apply. + C(enforce) enforces only the top-level configuration + sections present in the supplied candidate as complete end-states; + existing configuration within those sections but not mentioned in the + candidate is removed, so C(enforce) can generate C(delete) commands for + configuration the candidate does not mention. Top-level sections the + candidate does not reference at all are left completely untouched. + C(enforce) is intended for candidates made up of C(set) commands only; + supplying C(delete) lines alongside C(match=enforce) is not supported + and will raise an error. + - Ignored when C(replace) is set to C(config), since no line-level diff is + computed in that mode. type: str default: line choices: - line + - enforce - none backup: description: @@ -75,7 +100,7 @@ options: the playbook root directory or role root directory, if playbook is part of an ansible role. If the directory does not exist, it is created. type: bool - default: false + default: no comment: description: - Allows a commit description to be specified to be included when the configuration @@ -90,8 +115,11 @@ options: this module will automatically confirm the configuration, if the current session remains working with the new config. When set to C(manual), this module does not issue the confirmation itself. + - Defaults to C(automatic) when C(match) is set to C(enforce), since C(enforce) + can generate C(delete) commands for configuration not mentioned in the + candidate and a bad commit should self-revert rather than leave the device + unreachable. Defaults to C(none) for all other C(match) values. type: str - default: none choices: - automatic - manual @@ -110,19 +138,20 @@ options: The configuration lines in the option value should be similar to how it will appear if present in the running-configuration of the device including indentation to ensure idempotency and correct diff. + - Ignored when C(replace) is set to C(config). type: str save: description: - The C(save) argument controls whether or not changes made to the active configuration are saved to disk. This is independent of committing the config. When set - to C(true), the active configuration is saved. + to C(True), the active configuration is saved. type: bool - default: false + default: no backup_options: description: - This is a dict object containing configurable options related to backup file - path. The value of this option is read only when C(backup) is set to C(true), - if C(backup) is set to C(false) this option will be silently ignored. + path. The value of this option is read only when C(backup) is set to I(yes), + if C(backup) is set to I(no) this option will be silently ignored. suboptions: filename: description: @@ -141,6 +170,62 @@ options: in C(filename) within I(backup) directory. type: path type: dict + replace: + description: + - Controls how the module applies configuration to the device. + - When set to C(line) (default), the module computes a set/delete command + diff and pushes only the changed lines -- this is the existing behavior, + unchanged. + - When set to C(config), the module uploads the full candidate configuration + (C(src)) to the device and issues VyOS's native C(load) command in + configuration mode, which replaces the running configuration wholesale + with the candidate's exact contents. VyOS's own configuration engine + performs the reconciliation, rather than the module computing per-line + deltas. This mirrors the mechanism offered by C(cisco.iosxr.iosxr_config)'s + C(replace=config). + - C(replace=config) requires C(src) and does not accept C(lines) -- there is + no way to convert flat set/delete commands into the hierarchical form + C(load) requires without re-implementing VyOS's own config-tree builder. + - As with C(src) in the default C(line) mode, the module does not validate + the candidate's contents or format under C(replace=config) -- supplying a + well-formed, complete configuration is the caller's responsibility. + - C(replace=config) requires the device to accept file transfer (SCP) over + the same C(network_cli) SSH session used for configuration commands. + - C(replace=config) writes the candidate to a fixed path on the device + (overwritten on each run, matching C(cisco.iosxr.iosxr_config)'s own + C(replace=config) precedent). Running C(replace=config) concurrently + against the same host is not supported. + - Any configuration present on the device but omitted from the candidate + will be removed, including management interfaces, SSH access, and login + users if they are omitted. Always supply a complete configuration, never + a partial one. + - When capturing a candidate from the device's own output (for example + via C(show configuration)) rather than from a trusted, separately + maintained source, be aware that VyOS may return masked placeholder + values (for example a run of literal asterisks) in place of local + users' C(encrypted-password)/C(plaintext-password) values when queried + through automation, even though the identical command returns the real + value when typed interactively at a terminal. Pushing a masked capture + back through C(replace=config) sends the literal placeholder as the new + password value; VyOS's own commit-time validation is expected to reject + an obviously malformed hash, but a masked value that happens to pass + basic format validation could apply silently. Prefer sourcing + C(replace=config) candidates from a trusted, version-controlled + artifact rather than a live automated capture whenever the + configuration contains local password-based users. + - Even under C(check_mode), the candidate is written to a temporary file on + the device so that VyOS's own C(compare) can produce an accurate preview + diff. No C(commit) occurs in check mode. + - When combined with C(backup=yes), the value of C(changed) reflects + whether the backup file's content changed on the Ansible control node, + not whether the device configuration changed -- this is existing + behavior in the shared netcommon action plugin backing config-family + modules across collections, not specific to C(replace=config). + type: str + default: line + choices: + - line + - config allow_password_change: description: - The C(allow_password_change) argument specifies whether any configuration lines which @@ -148,6 +233,9 @@ options: password changes are allowed and any encrypted-password keys are filtered out. In order to allow all password updates, both plaintext and encrypted, set this argument to C(all). + - Not applied when C(replace) is set to C(config); the candidate is loaded + as-is via VyOS's native C(load), which has no equivalent filtering + mechanism. type: str default: plaintext choices: @@ -172,6 +260,7 @@ EXAMPLES = """ - name: render a Jinja2 template onto the VyOS router vyos.vyos.vyos_config: + match: enforce src: vyos_template.j2 - name: revert after ten minutes, if connection is lost @@ -191,16 +280,40 @@ EXAMPLES = """ backup_options: filename: backup.cfg dir_path: /home/user + +- name: capture the complete hierarchical configuration for editing + # replace=config requires the complete desired configuration in + # hierarchical/bracket format -- never a partial one, and never flat + # set-command format. `backup: true` alone won't work here: it captures + # flat set-command output (via `show configuration commands`), which + # replace=config's underlying `load` command rejects. Capture the + # hierarchical form directly instead, edit it, then replace with the + # edited whole, as shown here. + vyos.vyos.vyos_command: + commands: "show configuration" + register: current_config + +- name: (edit current_config.stdout[0] as needed, save it locally, then) + vyos.vyos.vyos_config: + src: /home/user/edited_config.cfg + replace: config """ RETURN = """ commands: - description: The list of configuration commands sent to the device + description: + - In C(replace=line) mode (default), the list of set/delete commands sent to + the device. + - In C(replace=config) mode, contains only the single C(load <path>) command + actually issued to the device -- not an itemized diff. See C(diff) for the + actual change content, sourced from VyOS's own C(compare) output. returned: always type: list sample: ['...', '...'] filtered: - description: The list of configuration commands removed to avoid a load failure + description: + - The list of configuration commands removed to avoid a load failure. + - Not populated when C(replace) is set to C(config). returned: always type: list sample: ['...', '...'] @@ -230,25 +343,68 @@ time: type: str sample: "22:28:34" """ +import os import re +import tempfile -from ansible.module_utils._text import to_text +from ansible.module_utils._text import to_bytes, to_text from ansible.module_utils.basic import AnsibleModule from ansible.module_utils.connection import ConnectionError from ansible_collections.vyos.vyos.plugins.module_utils.network.vyos.vyos import ( + copy_file, get_config, get_connection, load_config, run_commands, ) + DEFAULT_COMMENT = "configured by vyos_config" PASSWORD_NEEDLE = re.compile( - r"set system login user \S+ authentication (encrypted|plaintext)-password", + r"(?:set|delete) system login user \S+ authentication (encrypted|plaintext)-password", ) +# diff_match=enforce's scoping can collapse an entire untouched subtree into +# a single parent delete (e.g. "delete system login" when a candidate +# touches system without restating login, or "delete system login user +# admin" without a specific authentication line). PASSWORD_NEEDLE can't see +# into a collapsed delete to know whether it removes a password -- since +# real users almost always have one configured, treat any subtree-level +# login deletion as password-bearing by default, same conservative stance +# as PASSWORD_NEEDLE itself. +LOGIN_SUBTREE_DELETE_NEEDLE = re.compile( + r"^delete system login(?:\s+user\s+\S+(?:\s+authentication)?)?\s*$", +) + + +def sanitize_config(config, result, allow): + result["filtered"] = list() + + if allow == "all": + return + + index_to_filter = list() + + for index, line in enumerate(list(config)): + found = PASSWORD_NEEDLE.search(line) + + if found is not None: + if allow == found[1]: + continue + result["filtered"].append(line) + index_to_filter.append(index) + continue + + if LOGIN_SUBTREE_DELETE_NEEDLE.match(line.strip()): + result["filtered"].append(line) + index_to_filter.append(index) + + # Delete all filtered configs + for filter_index in sorted(index_to_filter, reverse=True): + del config[filter_index] + def get_candidate(module): contents = module.params["src"] or module.params["lines"] @@ -306,31 +462,6 @@ def diff_config(commands, config): return list(updates) -def sanitize_config(config, result, allow): - result["filtered"] = list() - - if allow == "all": - return - - index_to_filter = list() - - for index, line in enumerate(list(config)): - found = PASSWORD_NEEDLE.search(line) - - if found is None: - continue - - if allow == found[1]: - continue - - result["filtered"].append(line) - index_to_filter.append(index) - - # Delete all filtered configs - for filter_index in sorted(index_to_filter, reverse=True): - del config[filter_index] - - def run(module, result): # get the current active config from the node or passed in via # the config param @@ -358,16 +489,20 @@ def run(module, result): result["commands"] = commands + confirm_param = module.params["confirm"] + if confirm_param is None: + confirm_param = "automatic" if module.params["match"] == "enforce" else "none" + commit = not module.check_mode comment = module.params["comment"] confirm = None - if module.params["confirm"] == "automatic" or module.params["confirm"] == "manual": + if confirm_param in ("automatic", "manual"): confirm = module.params["confirm_timeout"] diff = None if commands: diff = load_config(module, commands, commit=commit, comment=comment, confirm=confirm) - if module.params["confirm"] == "automatic": + if confirm_param == "automatic" and not module.check_mode: run_commands(module, ["configure", "confirm", "exit"]) if result.get("filtered"): @@ -381,19 +516,92 @@ def run(module, result): result["diff"] = {"prepared": diff} +def run_replace_config(module, result): + # replace=config: push the full candidate to the device and let VyOS's + # own `load` command perform the replacement natively, rather than + # computing a set/delete diff in Python. + # + # Deliberately smaller than cisco.iosxr's equivalent implementation: + # - No bidirectional pre-diff to decide whether anything changed -- + # confirmed on real VyOS 1.5 hardware that `load` of an + # already-applied file, followed by `compare`, natively reports + # "No changes between working and active configurations" with no + # Python-side pre-check needed. + # - No special `replace=<path>` argument threaded through load_config()/ + # edit_config() -- confirmed that `load <path>` behaves as an ordinary + # configuration command through the existing configure/compare/commit + # flow already implemented in Cliconf.edit_config(), unmodified. + # + # Candidate format requirement (hierarchical/bracket, not flat + # set/delete) is enforced by VyOS's own `load` parser, not by this + # module -- confirmed empirically: flat set-command input produces + # "ValueError: Failed to parse config: Syntax error...". + # module.params["src"] is already the rendered file *content* by this + # point, not a path -- netcommon's generic action plugin for src-based + # network config modules reads the local file and substitutes its + # (Jinja2-rendered) content into this param before the module runs. Same + # assumption get_candidate() already relies on elsewhere in this file. + candidate = to_bytes(module.params["src"], errors="surrogate_or_strict") + + tmp = tempfile.NamedTemporaryFile(delete=False) + local_path = tmp.name + try: + tmp.write(candidate) + tmp.close() + + # Fixed remote filename, always overwritten -- same precedent as + # cisco.iosxr.iosxr_config's copy_file_to_node(), which always + # writes to the same "/harddisk:/ansible_config.txt". Avoids + # per-run temp-file accumulation on the device, at the accepted + # cost (shared with iosxr_config) that two concurrent replace=config + # runs against the same host could race on this path. + remote_path = "/tmp/ansible_vyos_replace.cfg" + copy_file(module, local_path, remote_path, "scp") + finally: + os.unlink(local_path) + + confirm_param = module.params["confirm"] + if confirm_param is None: + confirm_param = "none" + + commit = not module.check_mode + comment = module.params["comment"] + confirm = None + if confirm_param in ("automatic", "manual"): + confirm = module.params["confirm_timeout"] + + diff = load_config( + module, + ["load %s" % remote_path], + commit=commit, + comment=comment, + confirm=confirm, + ) + if confirm_param == "automatic" and diff and not module.check_mode: + run_commands(module, ["configure", "confirm", "exit"]) + + result["commands"] = ["load %s" % remote_path] + result["filtered"] = [] + result["changed"] = bool(diff) + + if module._diff: + result["diff"] = {"prepared": diff} + + def main(): backup_spec = dict(filename=dict(), dir_path=dict(type="path")) argument_spec = dict( src=dict(type="path"), lines=dict(type="list", elements="str"), - match=dict(default="line", choices=["line", "none"]), + match=dict(default="line", choices=["line", "enforce", "none"]), comment=dict(default=DEFAULT_COMMENT), - confirm=dict(choices=["automatic", "manual", "none"], default="none"), + confirm=dict(choices=["automatic", "manual", "none"], default=None), confirm_timeout=dict(type="int", default=10), config=dict(), backup=dict(type="bool", default=False), backup_options=dict(type="dict", options=backup_spec), save=dict(type="bool", default=False), + replace=dict(type="str", default="line", choices=["line", "config"]), allow_password_change=dict( default="plaintext", choices=["all", "encrypted", "plaintext", "none"], @@ -401,10 +609,12 @@ def main(): ) mutually_exclusive = [("lines", "src")] + required_if = [("replace", "config", ["src"])] module = AnsibleModule( argument_spec=argument_spec, mutually_exclusive=mutually_exclusive, + required_if=required_if, supports_check_mode=True, ) @@ -415,7 +625,9 @@ def main(): if module.params["backup"]: result["__backup__"] = get_config(module=module) - if any((module.params["src"], module.params["lines"])): + if module.params["replace"] == "config": + run_replace_config(module, result) + elif any((module.params["src"], module.params["lines"])): run(module, result) if module.params["save"]: @@ -429,7 +641,11 @@ def main(): result["changed"] = True run_commands(module, commands=["exit"]) - if result.get("changed") and any((module.params["src"], module.params["lines"])): + if ( + result.get("changed") + and module.params["replace"] != "config" + and any((module.params["src"], module.params["lines"])) + ): msg = ( "To ensure idempotency and correct diff the input configuration lines should be" " similar to how they appear if present in" |