Ansible print variable to stdout. py prints the list of applied migrations to stdout.

Ansible print variable to stdout Looks like variables are serialized and the whole text is printed in a single line with \\n. stdout}} in my templates, but I want to get rid of that . format) global flag can be used to specify alternative output formats. Output Formatting By default, awx prints valid JSON for successful commands. Feb 14, 2022 · In this guide, we are going to demonstrate how to use debug module in ansible playbook with examples. That looks like a good start, but when I use the ANSIBLE_STDOUT_CALLBACK=json, then the variable registered during playbook execution isn't in the list of the output. Currently everything comes out as one line. But I’d to grab the IP address from the ‘data’ key in the debug msg and register that as a variable somehow to use elsewhere. results is a list and there's an element for each item in that list. 3. Print a Simple Statement Using Debug Module The most basic use of the debug module in Ansible is to prints simple statements to stdout (Standard Output). if you use the command Oct 8, 2025 · Note This module is part of ansible-core and included in all Ansible installations. results|map (attribute=‘stdout_lines’)|list }}” That would do it for you. In the config: [defaults] stdout_callback = debug As an environment variable: ANSIBLE_STDOUT_CALLBACK=debug Sep 25, 2019 · - debug: msg: "User was {{ item. stdout ` Jul 14, 2017 · I suggest you do a name: examine shell output debug: var: so_output and run with -v to see what you have stored in so_output variable. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. The debug module is one of the simplest yet most powerful tools for this purpose. ', stdout=subprocess. However, I tried to do the same thing in the above playbook and it says that the variable was undefined (code not shown because it didn't work). stdout P. cfg file, similar to the yaml example above. It nests all of the results inside of a results key Your second task could have been written to use: name: use shell to print list of file paths shell: “echo { { item }}” with_items: “ { { files. With Ansible, you can execute tasks and playbooks on multiple systems with a single command. 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. stdout) -debug: var=output. Ansible captures this output separately from regular stdout using the stderr, stderr_lines, and cmd variables. if you use the command module. stdout }}" It d Feb 22, 2016 · The “problem” is in how ansible registers results when using with_items. The variable Apr 27, 2023 · How to extract stdout of command as variable in ansible playbook Ask Question Asked 2 years, 6 months ago Modified 2 years, 6 months ago Dec 28, 2023 · Have a look inside the doc from the ansible. . Dec 28, 2016 · Thanks. This often escapes line breaks as \\n, making multiline content hard to read, especially when printing structured data like logs, PGP keys, or code Jan 26, 2025 · Simplify troubleshooting in Ansible playbooks with the debug module. builtin. stdout where i is the 0 based index of items, since you seem to have only 1 mount this will be what you need: device. Mar 17, 2016 · That variable I'd like to use in multiple templates afterwards. Depending on what you are trying to achieve you might want to use either template module to write the contents of so_output to a file, or at a push you Jul 14, 2017 · I suggest you do a name: examine shell output debug: var: so_output and run with -v to see what you have stored in so_output variable. ` register: output name: show output debug: var: output. You can access the stdout for the first item with pulp. To represent the variations among those different systems, you can create variables with standard YAML syntax, including lists and dictionaries. That means pulp. hosts: all become_user: root tasks: - script: date. results [0]. That pulls the stdout_lines attribute Aug 1, 2017 · Im having troube in Ansible 2. It doesn't do exactly what you want, but maybe you could look at the source code and see how it fetches the variables using PowerShell. Is anyone aware of a better way to get the output to print to the console without using -debug? Any ansible references would be greatly Oct 25, 2019 · Ansible loop over registered variables from stdout in printing debug Asked 5 years, 11 months ago Modified 5 years, 10 months ago Viewed 5k times May 7, 2015 · the issue is that with_items always creates a result list, so you can access stdout of each item this way: device. Further Q&A grep a file, but show several surrounding lines? Regarding send it to the file. Worse when it is a json/code output. In AWX, under “Settings/Jobs setting,” I add the following variable to “Extra Enviro… Oct 5, 2024 · Sometimes you want to print more or extensive information on ansible output (in this case a terraform plan). S. This can easily be realised using an stdout callback. txt you may have a look into Ansible - Save registered variable to file Ansible: Save registered variables to file Apr 3, 2019 · You are using register with a loop. Taking that off gets me back to where I have the typical Ansible output, but the variable does print its value. type_debug filter: - name: Print the type of the file_contents variable ansible. Mar 29, 2022 · and gather only result lines which are true an the line before. com Jun 21, 2019 · How to print a variable in Ansible and how to list all ansible variables and facts from a playbook, using Ansible debug module. Depending on what you are trying to achieve you might want to use either template module to write the contents of so_output to a file, or at a push you Dec 27, 2023 · Let‘s dive in! What Exactly is the Ansible Debug Module? The Ansible debug module prints statements during playbook execution for troubleshooting purposes. stdout_lines }}" The above give me the below output: “msg”: “User was Jun 8, 2020 · On the first host in your play (play_hosts[0]), you're setting the secondary variable to the result of running bash/checksecond. stat module. Apr 6, 2024 · To use any of these callback plugins, simply set the ANSIBLE_STDOUT_CALLBACK environment variable or configure it in your ansible. Scroll to the topic Return values. Nov 2, 2023 · Let‘s get started! What Does the Ansible Register Module Do? The register module allows you to capture or "register" the output of any Ansible task and save it to a variable. Dec 17, 2022 · By default Ansible sends output about plays, tasks, and module arguments to your screen (STDOUT) on the control node. You can test the type using the ansible. There you have all returned values, usable with the registered variable result. How do I see stdout for ansible-playbook commands? -v only shows ansible output, not the individual commands. Consider a playbook that contains the following content. stdout May 11, 2020 · After that you need to use the task argument register to store the results into a variable. Feb 8, 2021 · 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. split('\\t')[3] }}" with_items: "{{ command_result. I guess I could just use {{command_output. below is a sample of my yaml output. Popen ('ansible-playbook . - name: Print the value of the variable result ansible. results [i]. YAML Formatting To print results in YAML, specify -f yaml: The win_environment Ansible module lets you set or change environment variables. - Return Values Topics Return Values Common backup_file changed diff failed invocation msg rc results skipped stderr stderr_lines stdout stdout_lines Internal use ansible_facts exception warnings deprecations Ansible modules normally return a data structure that can be registered into a variable, or seen directly when output by the ansible program. cfg [default] # human-readable stdout/stderr results display stdout_callback = debug From Oct 1, 2014 · How do I use the when statement based on the standard output of register: result? If standard output exists I want somecommand to run if no standard output exists I want someothercommand to run. That should make the output more readable. From memory you’ll have stdout and stdout_lines attributes in so_output and possibly the same for stderr. Once the results are stored you can display it with a debug task. cfg, but this seems redundant for those that already have colors disabled in their environment (e. stdout for readability. Thanks Jan 4, 2021 · SUMMARY I know you can disable colors in Ansible by setting nocolor = true in ansible. You can define these variables in your playbooks, in your inventory, in reusable Oct 25, 2019 · I prefer to set the stdout callback plugin to debug, though yaml is also pretty good. stdout Sebastian 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. Popen to spawn the ansible playbook and flush the stdout p = subprocess. split('\n') }}" It splits the message up into an array and debug prints each line as a string. Also for learning, it is a good idea to print the whole registered variable out. Feb 19, 2024 · How to print stdout of results variable of previous task Ask Question Asked 1 year, 8 months ago Modified 3 months ago Many commands will print warnings, errors or other status messages to stdout/stderr. debug: msg: "{{ file_contents | ansible. type_debug }}" Apr 6, 2025 · 💡 Solution: Clean Multiline Output in Ansible msg Results with a Custom Callback Plugin Hi everyone, Ansible’s default callback plugin renders msg: outputs — including debug, failed, and other task messages — as single-line JSON strings. Each module can optionally document its own Dec 20, 2023 · Hello all! I am attempting to enhance the human readability of template run outputs by configuring the stdout_callback plugin to YAML. stdout migrate. In most cases, you can use the short module name debug even without specifying the collections keyword. debug: var: result The variable. g. a colorbli Using variables Ansible uses variables to manage differences between systems. It allows us to print messages, variable values, or custom strings directly into the playbook output, helping us validate assumptions or identify issues in real Jul 21, 2025 · Hello community! Question, it is a little hard for me to read the ansible-navigator output. The -f (or --conf. stdout But all new lines are escaped to \n, which makes the output quite difficult to Dec 11, 2014 · Is there anyway I can trick ansible-playbook and other commands to output colorized output? I use this invocation of subprocess. sh register: results - debug: var: results. This is the second line with a variable like {{ inventory_hostname }}. Apr 25, 2018 · Ansible 2. . Aug 16, 2018 · Hi Sumit, The result is registered further up in the playbook which is where I’m getting the stdout values from. It would be great if I could figure out how to do this immediately, so if something f Sep 25, 2024 · Ansible provides the register and debug modules, which work together seamlessly: register module assigns a variable name to capture the output of specific tasks debug module enables the display of stored output directly on the terminal screen To demonstrate, let’s use the same playbook template we saw earlier to create a register and debug parameter for the specified command. Is there a best practice for avoid this behavior? Maybe a filter that beautify Dec 10, 2015 · The most convenient way I found to print multi-line text with debug is: - name: Print several lines of text vars: msg: | This is the first line. There is a timezone module. 0 to print out my output in a human format. stdout exists eg. stdout_lines and it prints the output. PIPE, stderr=subprocess. Dec 26, 2023 · The b64decode filter is an Ansible filter, the trim filter comes from jinja2. Think placing strategic print() statements throughout Python code. You're explicitly not doing this on any other hosts in the play. Sep 4, 2013 · register: result changed_when: result. PIPE, shell=True) flush_subprocess_stdout (p. results. If you want to capture Ansible output in a log, you have three options: To save Ansible output in a single log on the control node, set the log_path configuration file setting. For example, you can run a shell command like ls -l, store its output in a variable called dir_listing, and then use dir_listing later in your playbook. Debugging in Ansible often starts with understanding the flow of our playbooks and inspecting the values of variables or the output of specific tasks. stdout}}” when: result. debug for easy linking to the module documentation and to avoid conflicting with other collections that may have the Dec 28, 2023 · Scroll to the topic Return values. py prints the list of applied migrations to stdout. sh. We try to print this list because our developers want some feedback about which migrations were applied: debug: msg=“ { {result. The output is: ok: [example. Includes real-world examples for variables, and conditions. 0. And here could be more debug: msg: "{{ msg. The debug module outputs variable values and arbitrary messages to stdout without affecting overall playbook execution. - name: Transfer and execute a script. x3s qs03ig 6kbycu cjfvu9 v8e 5goawoee 1cmu vkls1z gf1y gzbgb35