# Environment variable **URL:** \ **Category:** Get Help\ **Created:** [December 8, 2024, 9:31am UTC](https://forum.ansible.com/t/environment-variable/38977 "2024-12-08T09:31:13Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![alexb81](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/alexb81/32/5126_2.png) [@alexb81](https://forum.ansible.com/u/alexb81)\ **Post date:** [December 8, 2024, 9:31am UTC](https://forum.ansible.com/t/environment-variable/38977/1 "2024-12-08T09:31:13Z")
Hello, I’m trying to reset the ANSIBLE\_LOG\_PATH environment variable. To do this, I’ve written the following code: play.yml ```auto - name: test la genration de fichier de log hosts: all #gather_facts: no connection: local tasks: - import_role: name: role1 ``` role1/main.yml ```auto --- - set_fact: datetime: "{{ ansible_date_time.iso8601_basic_short }}" - name: "Emplacement du log" block: - file: path: "{{ inventory_dir }}/logs" state: directory - file: path: "{{ inventory_dir }}/logs/{{ datetime }}_{{ ansible_role_name }}.log" state: touch delegate_to: localhost - name: command: export $ANSIBLE_LOG_PATH environment: ANSIBLE_LOG_PATH: "{{ inventory_dir }}/logs/{{ datetime }}_{{ ansible_role_name }}.log" - block: - shell: echo $ANSIBLE_LOG_PATH register: test - name: Affichage de la variable test debug: msg: "{{ test }}" - name: Affichage de la variable role1 debug: msg: "{{ role1 }}" ``` I get the following error without understanding why ```auto TASK [role1 : command] ***************************************************************************************************************************************************************************************** fatal: [ma_machine1]: FAILED! => {"changed": false, "cmd": "export /home/alexandre/inventory/logs/20241208T100856_role1.log", "msg": "[Errno 2] No such file or directory: b'export'", "rc": 2, "stderr": "", "stderr_lines": [], "stdout": "", "stdout_lines": []} ``` However, the file is present in the logs directory. I’d like to reload this variable in order to change the log file when a role is started. Thank You ---
**Author:** ![jpmens](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/jpmens/32/5543_2.png) [@jpmens](https://forum.ansible.com/u/jpmens)\ **Post date:** [December 8, 2024, 12:06pm UTC](https://forum.ansible.com/t/environment-variable/38977/2 "2024-12-08T12:06:42Z")
`export` is a shell builtin and you’re using the `command` module (which doesn’t use a shell). This will never work. Even if you used the `shell` module it wouldn’t work as the export would happen within that shell invocation and not carried forward. At best (though I don’t know whether log output can be reset) you use the `environment:` task attribute on the task you want the log to be changed. ---
**Author:** ![alexb81](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/alexb81/32/5126_2.png) [@alexb81](https://forum.ansible.com/u/alexb81)\ **Post date:** [December 8, 2024, 2:38pm UTC](https://forum.ansible.com/t/environment-variable/38977/3 "2024-12-08T14:38:14Z")
Thanks for your feedback, I must admit that when I tried to use copilot, I got the following library: ```auto from __future__ import (absolute_import, division, print_function) __metaclass__ = type import os from ansible.plugins.callback import CallbackBase class CallbackModule(CallbackBase): CALLBACK_VERSION = 2.0 CALLBACK_TYPE = 'notification' CALLBACK_NAME = 'role_logger' CALLBACK_NEEDS_WHITELIST = True def __init__ (self, display=None): super(CallbackModule, self). __init__ (display) self.logs = {} self.current_role = None self.log_dir = os.getenv('ANSIBLE_LOG_DIR', '/path/to/logs') def v2_playbook_on_task_start(self, task, is_conditional): role = task._role if role: self.current_role = role.get_name() if self.current_role not in self.logs: self.logs[self.current_role] = [] def v2_runner_on_ok(self, result): self._log(result) def v2_runner_on_failed(self, result, ignore_errors=False): self._log(result) def v2_runner_on_skipped(self, result): self._log(result) def v2_runner_on_unreachable(self, result): self._log(result) def _log(self, result): if self.current_role: msg = self._dump_results(result._result) self.logs[self.current_role].append(msg) self._write_log(self.current_role) def v2_playbook_on_stats(self, stats): pass # No need to handle logs here, already handled per task. def _write_log(self, role_name): log_file = os.path.join(self.log_dir, f"log_{role_name}_{self._timestamp()}.log") with open(log_file, 'w') as f: for entry in self.logs[role_name]: f.write(entry + '\n') def _timestamp(self): import datetime return datetime.datetime.now().strftime('%Y%m%d%H%M%S') ``` I placed it in a directory at the root of my play. But I didn’t know how to use it, even though I had set the variables in ansible.cfg: ```auto [defaults] callback_whitelist = role_logger callback_plugins = ./callback_plugins ``` I had no log files being created. Could you help me to get this library working? Where to place it? How to call it? … Thanking you ---
**Author:** ![bcoca](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/bcoca/32/9269_2.png) [@bcoca](https://forum.ansible.com/u/bcoca)\ **Post date:** [December 9, 2024, 4:17pm UTC](https://forum.ansible.com/t/environment-variable/38977/4 "2024-12-09T16:17:46Z")
That is a custom callback plugin, but you can just use existing ones that create log files, here are a few: [syslog\_json](https://docs.ansible.com/ansible/latest/collections/community/general/syslog_json_callback.html) [tree](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/tree_callback.html) [log plays](https://docs.ansible.com/ansible/latest/collections/community/general/log_plays_callback.html)