Ansible print variable to stdout. You need to loop over all check_deployments.

Ansible print variable to stdout if you use the command module. debug: var: result. 4, but I can't echo the variable on play. Normally if it is not a loop then everything is OK but there is results key in the output and I don't know how to print it out. 5. e. Apr 27, 2023 · However, the problem is I try to export the gpg key id as a variable on play. In that case, the variable contains a list of results. yml # other_tasks. So - your loop with check_deployments. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. Regarding second part, you also may place ansible variable in shell as part of command Jun 4, 2024 · A: The value of command_results. So if I were to register using the variable, psk, I'd use that same variable name with creating the set_fact. Feb 8, 2021 · Ansible Output Format. Use imagination ))) Apr 28, 2021 · This is true, because you loop over a Ansible module and register ALL output into ONE variable. So you could Dec 27, 2023 · You can also print Ansible facts about remote hosts: - debug: var: ansible_processor_count. yml-name: Set a variable ansible. Or variables defined in inventory: - debug: var: db_server_ip . Feb 14, 2022 · James Kiarie, a certified Linux administrator and a passionate tech enthusiast who stays connected with the latest trends in the tech world. stdout }}" On the remote hosts, this will store the standard output of ls /home/user in the dir_list. Using debug to Print Variables. Jun 4, 2024 · A: The value of command_results. 87% of Ansible developers use the debug module for printing variable Nov 2, 2023 · We can then print the contents of dir_list using Ansible‘s debug module: - name: Print directory listing debug: msg: "{{ dir_list. stdout_lines is wrong. - name: print to stdout action: command echo "hello" would print Feb 19, 2024 · I only want to see stdout_lines: and its content. stdout exists eg. To capture command output into a variable, use the register keyword: - name: Run uptime command: uptime register: uptime_out Apr 27, 2023 · However, the problem is I try to export the gpg key id as a variable on play. Apr 25, 2018 · Ansible 2. stdout_lines Here register tells ansible to save the response of the module into the shell_result variable, and then we use the debug module to print the variable out. For example when you using shell. I like to reuse the registered variable names with the set_fact to help keep the clutter to a minimum. I need to capture the stdout from an ansible play and parse this output for a specific substring within stdout and save into a var. . stdout variable. May 27, 2022 · This module prints statements during execution and can be useful for debugging variables or expressions without necessarily halting the playbook. An example run would look like the this: Dec 10, 2015 · You could use stdout_lines of register variable: - name: Do something shell: "ps aux" register: result - debug: var=result. Mar 17, 2016 · A slight modification beyond @udondan's answer. My issue is that when Ansible prints the output to the terminal it mangles the newlines. The example below shows how to work with variables and use the Ansible debug module for troubleshooting and validation. - name: Print the value of the variable result ansible. yml when: x is not defined # if condition is met, Ansible includes other_tasks. g. Jan 3, 2018 · I was looking at a similar problem and was confused by getting lots of output when I was expecting a relatively small msg or var from debug:. A minimal example playbook Sep 25, 2024 · Learn ways to print the output of commands when using Ansible. stdout_lines is the YAML list. Jun 8, 2020 · First, let's look at your problem. The message is nothing but any variable values or output of any task. ansible_facts. result. builtin. sh register: results - debug: var: results. Basically it creates structure which you can iterate or even update. Nothing happens to the list when you filter it from_yaml. Run a playbook and get the output in the human-readable format: $ ANSIBLE_STDOUT_CALLBACK=yaml ansible-playbook playbook. warnings. The variable name declared in the register parameter { "print_memory_usage. This module prints a debug message during playbook execution. On the first host in your play (play_hosts[0]), you're setting the secondary variable to the result of running bash/checksecond. In most cases, you can use the short module name debug even without specifying the collections keyword . set_fact: x: foo # no condition applied to this task, Ansible sets the value of x to foo-name: Print a variable ansible. stdout | from_yaml }}" Details: Given the below file for testing Mar 25, 2025 · This module is part of ansible-core and included in all Ansible installations. There are lots of examples how to work with variables: ansible print debug msg variable. There is a timezone module. Install gpg and pass apt: update_cache: yes name: - gpg - pass - name: 2. Sep 9, 2019 · I think you may try to register to get stdout of your command. stdout instead - set_fact: needrestart: "{{ command_results. Useful for debugging together with the ‘when:’ directive. I tried using register but the register variable seem cannot be use at other play's shell command - name: 1. S. Beyond executing commands on the terminal, you'll find me enjoying some cool music, taking casual strolls, or indulging in a good movie. - name: Transfer and execute a script. 0. echo Test---- >> /tmp/test && tail /tmp/test is a demo command. Example How do I see stdout for ansible-playbook commands? -v only shows ansible output, not the individual commands. stdout_lines 1. stdout_lines. 6. yml-include_tasks: other_tasks. Inspecting variables confirms they match expected values during playbook execution. The easiest way to print output from an Ansible task is by using the debug module. yml --- - hosts: localhost tasks: - shell: ls register: shell_result - debug: var: shell_result. Internal use. You're explicitly not doing this on any other hosts in the play. exception. results which contains the correct "registered" variable per module run, which you want to Feb 22, 2016 · If ‘stdout_lines’ is the only variable in the select, the resulting array will be all 1 liners, rather than grouped by result. You should output data to some file and tail it for ability to see the progress. Use command_results. yml You can see that stdout changing. There you have all returned values, usable with the registered variable result. Use command_results. Discrepancies often reveal issues. It would be great if I could figure out how to do this immediately, so if something fails or hangs I can see why. Aug 17, 2017 · My problem is with ansible and parsing stdout. Let‘s look at a more real-world example. Turns out most of that output was the 'label' with which Ansible was prefixing each of those small outputs. debug: var: x # no condition applied to By printing individual variables, composite messages, or even the entire set of variables, you can gain valuable insights into your playbook’s execution. stdout used to work but now triggers: I have a Ansible play for PGBouncer that displays some output from a stats module built into PGBouncer. stdout }}" It d stdout. deprecations. 4+ has built-in support for human-readable results: Temporarily by setting ANSIBLE_STDOUT_CALLBACK=debug in the environment export ANSIBLE_STDOUT_CALLBACK=debug or permanently by setting stdout_callback=debug in the [default] section of ansible. Oct 25, 2019 · ansible register with loop debug print not working. Each module can optionally document its own unique return values (visible through ansible-doc and on the main docsite). stdout_lines Neatly print Ansible debug Dec 16, 2018 · Ansible debug module is used to print the message in the log output. stdout | bool will NOT work as most strings will evaluate as False, only cases where it would return true is if stdout happens to be one of the true, yes, kind of strings. In the following examples I will show how to use debug module to print variable values, and print variables values with by adding some extra strings and printing variable with stdout. Also for learning, it is a good idea to print the whole registered variable out. You need to loop over all check_deployments. Or You may look at file size of stdout file and display it. Ansible modules normally return a data structure that can be registered into a variable, or seen directly when output by the ansible program. Oct 1, 2014 · result. stdout P. hosts: all become_user: root tasks: - script: date. Generate and Store a Random Password Dec 28, 2023 · Scroll to the topic Return values. sh. Ansible, loop, register, and stdout. ‘item’ within each result in the list displays the item name provided when the list was produced. stdout != "" would not pass ansible-lint check! result. How to retrieve a value from stdout of ansible registered variable? 0. My specific use case is below You can run this playbook with ansible-playbook -vv background. To change the Ansible’s output format you can pass the ANSIBLE_STDOUT_CALLBACK=yaml environment variable on the command line or define the stdout_callback = yaml in Ansible configuration file. The variable. Once the results are stored you can display it with a debug task. stdout | from_yaml }}" Mar 25, 2025 · # main. debug for easy linking to the module documentation and to avoid Jun 1, 2015 · I try to print the previously registered mosh_version variable using the ansible debug msg command like this: - name: Print mosh version debug: msg="Mosh Version: {{ mosh_version. cfg [default] # human-readable stdout/stderr results display stdout_callback = debug From May 11, 2020 · After that you need to use the task argument register to store the results into a variable. codkmjlq edyjr hveqwmkc cqk rvvj zjenvzfj gimt mtvjvcb ztoentq ysa gbdgrs cggol dyzng klydmef udvqy