ansible check python version
Last updated on Feb 17, 2023. Outputs: To get an extra version of Python installed, the easiest option is to use a ppa, such as https://launchpad.net/~fkrull/+archive/ubuntu/deadsnakes-python2.7 so that someone else has done the work of turning Python into a package for you. Making statements based on opinion; back them up with references or personal experience. This makes things Asking for help, clarification, or responding to other answers. Thanks that is very useful, so if I understand it correctly, you are installing a second version of python. How to hide edge where granite countertop meets cabinet? well. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. How can I delete a file or folder in Python? and manipulate in bytes. To validate the type present, run the following command: python_interpreter_test_inventory.yml is an example of an inventory file for Ansible. To just print the module version: - debug: var=pytz_version.stdout You can also use the version as a 'when' clause in other tasks: - name: Do something requiring pytz 2012d command: foo when: pytz_version.stdout | search ("2012d") Share Improve this answer Follow answered Feb 16, 2017 at 20:12 John L 397 3 12 Add a comment Your Ansible to check version of software on remote hosts before install/upgrade Ask Question Asked 3 years, 9 months ago Modified 3 years, 9 months ago Viewed 5k times 2 Goal: Skip the host if version of custom software (non-rpm based) installed at remote host is greater than or equal to software version intended for upgrade. Again, this may not necessarily be best practice, but it worked. shell. How can I delete a file or folder in Python? transform the output into text strings. https://docs.ansible.com/ansible/latest/reference_appendices/interpreter_discovery.html, https://docs.ansible.com/ansible/2.4/python_3_support.html, The open-source game engine youve been waiting for: Godot (Ep. $ ansible all -i production/inventory -m setup | grep ansible_python_version "ansible_python_version": "2.7.9", jbenner 5 yr. ago Thanks a bunch! It only takes a minute to sign up. and with the controllers assumptions, particularly the string strategy. Previous to 2.5, using Python 3 was Module-utils functions are therefore often very defensive in nature. Ansible will use a system copy of six if the system copy is a later version than the one Ansible bundles. In this case how do I setup a virtualenv to point to this python? However, as shown in the example below, especially with Python an updated version is usually installed to an alternative path to not break system tools. The easiest way to run /usr/bin/ansible under Python 3 is to install it with the Python3 To learn more, see our tips on writing great answers. Was Galileo expecting to see so many stars? WebAnsible will automatically detect and use Python 3 on many platforms that ship with it. Retracting Acceptance Offer to Graduate School, Derivation of Autocovariance Function of First-Order Autoregressive Process. location of a Python 3 interpreter, such as /usr/bin/python3. If you want certain tasks to run in check mode always, or never, regardless of whether you run the playbook with or without --check, you can add the check_mode option to those tasks: modules - the code which Ansible transmits to and invokes on the managed machine. Connect and share knowledge within a single location that is structured and easy to search. Simply type it into your terminal:$ ansible version. The ansible_python_interpreter parameter can define a custom Python path/version that can be defined per client using the ansible_python_interpreter parameter. WebThis command creates a .python-version file in your current directory. How do I update/upgrade pip itself from inside my virtual environment? without requiring that it is installed on the remote system. Simply type it into your terminal:$ ansible version. thank you very much for such an informative answer! 542), We've added a "Necessary cookies only" option to the cookie consent popup. Alternatively, set it to the path of a specific Python interpreter. added until Python 2.7, so you need to remember not to use it in Ansible code: Both of the format strings above map positional arguments of the format() You have two options, both involving a bash command to extract the version number from the output of your scripts. Also submitting a PR to the github project. Ansible does not have a module to directly check the versions of any program. Checking if the Ansible collection is installed or not. To just print the module version: - debug: var=pytz_version.stdout You can also use the version as a 'when' clause in other tasks: - name: Do something requiring pytz 2012d command: foo when: pytz_version.stdout | search ("2012d") Share Improve this answer Follow answered Feb 16, 2017 at 20:12 John L 397 3 12 Add a comment Your subprocess library and byte strings should be expected back from it. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? they can be an array of text. Outputs: If you want certain tasks to run in check mode always, or never, regardless of whether you run the playbook with or without --check, you can add the check_mode option to those tasks: Instruct Ansible to use a specific version of Python interpreter on the remote host. In Python 3 these are text strings. $ lsb_release -a No LSB modules are available. Additionally to @Simon Fraser's answer, the following playbook is what I use in Ansible to prepare a server with some specific Python 3 version: I have the above in a role too, called ansible-python-latest (github link) in case you are interested. rev2023.2.28.43265. Not the answer you're looking for? is compatible with Python 2.6. the importing, theres a new dot notation to do so. They convert their string parameters into text (using ansible.module_utils.common.text.converters.to_text) To learn more, see our tips on writing great answers. Using Command. To check the Python version using the sys module, write: import sys. I do this for several related reasons: WebCheck the right software versions are installed: ansible >=2.0 python >=2.6 shade module for python $ansible --version ansible 2.2.0.0 $python --version Python 2.7.5 Install 'shade' the python component used to pilot openstack. For instance: $ ansible-galaxy collection list. This is because it's used by the system itself for things like package management, and so replacing it may cause other important things to break. Until recently ansible-core supported Python 2.x and followed this strategy, known as the Unicode Sandwich (named To check the version of the ansible package that has been installed: $ python3 -m pip show ansible Installing for development filesystem (or a C library which talks to the filesystem) you can often get Can patents be featured/explained in a youtube video i.e. Upgrading a component that your production environment depends on defeats the purpose of testing. Ansible is based on Python and leverages many Python modules and plugins. Modules need to support the managed node Python versions, with some exceptions. A PPA can be added with Ansible's apt repository module using a directive like the one below, which will then allow you to install packages from it the normal ansible way: If there is no ppa that has the version of Python you require, then you may need to build a .deb package yourself. Python and pip, list all versions of a package that's available? WebAnsible is a radically simple IT automation platform that makes your applications and systems easier to deploy and maintain. Updated the ppa address to "ppa:/deadsnakes/ppa". By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Sometimes distros will provide a means of installing for several Python versions WebThere are two ways we will could install Ansible. Does an age of an elf equal that of a human? I have python2.7 and python3.5 in my ansible server , while executing playbooks it is using python2.7. Launching the CI/CD and R Collectives and community editing features for Replacements for switch statement in Python? WebThere are two ways we will could install Ansible. Handle exceptions with as In order for code to function on Python 2.6+ and Python 3, use the new exception-catching syntax which uses the as keyword: try: a = 2/0 except ValueError as e: module.fail_json(msg="Tried to divide by zero: %s" % e) See Control Node Requirements and Managed Node Requirements for the 542), We've added a "Necessary cookies only" option to the cookie consent popup. The standard package manager for Python is pip. How do I concatenate two lists in Python? What are some tools or methods I can purchase to trace a water leak? Making statements based on opinion; back them up with references or personal experience. Asking for help, clarification, or responding to other answers. Launching the CI/CD and R Collectives and community editing features for How do I check whether a file exists without exceptions? Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. How do I report an Ansible command/shell task as changed in check mode? There is also an option to enable the automation execution environment and users can choose the container engine, image name, pull Homebrew is a free and open-source software package management system that simplifies the installation of software on Apples operating system. , or in any other suitable place. root@Network-Automation:~# ansible --version ansible 2.7.11 config file = /etc/ansible/ansible.cfg configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules'] ansible python module location = /usr/lib/python2.7/dist-packages/ansible executable location = /usr/bin/ansible python Why is "1000000000000000 in range(1000000000000001)" so fast in Python 3? Find centralized, trusted content and collaborate around the technologies you use most. after Python 2s unicode text type). How far does travel insurance cover stretch? The best place to start learning about writing code that supports both Python 2 and Python 3 away without converting to bytes: On the other hand, if the code needs to manipulate the filename and also talk At some Powered by common Python3 compatibility issues in the Ansible codebase. to UTF-8. How to run multiple playbooks in order with Ansible? string literal: In Python 2, these are byte strings. - Checking if the Ansible collection is installed or not. Python interpreters on the remote system. Dinosaur_Boner 5 yr. ago To check the version of the ansible package that has been installed: $ python3 -m pip show ansible Installing for development find the quotient use x // y instead of x / y. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Ansible extension settings. Python 3 changes this behavior by making the separation between bytes (bytes) It will open the system window where you will find the OS version and other information like type of computer/server, model, processor, RAM, manufacturer, etc. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? Install-Ansible-Amazon Linux2-EPEL.sh. Ansible uses different strategies for working with strings in controller-side code, in the outside world we first convert the text back into bytes. Making statements based on opinion; back them up with references or personal experience. Can a VGA monitor be connected to parallel port? You can install this script with Ansible, for example with the template module. Using Command. Dinosaur_Boner 5 yr. ago Basically what you already had plus the version extraction. - text and bytes at the borders. Upgrading a component that your production environment depends on defeats the purpose of testing. Find centralized, trusted content and collaborate around the technologies you use most. mixing the byte and text types inappropriately, whereas in Python 2, code that mixes those types distro packages youll only be able to use Ansible with the Python version for which it was to its functions and emit native strings as their output. methods transform any text strings they receive in the command (and arguments Remote host Remote operating system. mandating that all strings inside of modules are text and converting between Ansible is an IT automation tool. Remote host Remote operating system. Is the set of rational points of an (almost) simple algebraic group simple? Handle exceptions with as In order for code to function on Python 2.6+ and Python 3, use the new exception-catching syntax which uses the as keyword: try: a = 2/0 except ValueError as e: module.fail_json(msg="Tried to divide by zero: %s" % e) The default interpreter path may also be set in ansible.cfg. Type: $ ansible ---version. and while Python 2 is not a concern anymore we will continue to use them as they apply for other cases that make Making statements based on opinion; back them up with references or personal experience. If youre developing a module or some module_utils code, be sure to read the section on string strategy carefully. (control codes). You can also use the version as a 'when' clause in other tasks: Thanks for contributing an answer to Stack Overflow! However, if you happen to be testing Ansible code with Python 3.4 or For what it's worth, my host Macbook is running Python 3.10 too, but that does not interfere with the guests being on 3.8. WebThere are two ways we will could install Ansible. How do I merge two dictionaries in a single expression in Python? now it is safe to assume that bytes are UTF-8. How to upgrade all Python packages with pip. In my case, my own application code uses 3.10. Functions must accept string parameters as either text strings or byte strings. In Python 3 its immediately apparent to the programmer when code is Issue with Ansible wait_for module - how to reliably check if the VM is up and running? The third-party Python six library exists I've not checked the one I linked to. However, one commonly used feature of format() wasnt Shell at the beginning of the function, do their work, and then convert $ ansible all -i production/inventory -m setup | grep ansible_python_version "ansible_python_version": "2.7.9", jbenner 5 yr. ago Thanks a bunch! Which Langlands functoriality conjecture implies the original Ramanujan conjecture? The programmer has to explicitly However, it Launching the CI/CD and R Collectives and community editing features for Ansible error: AttributeError: module 'platform' has no attribute 'dist', Ansible ignoring ansible_python_interpreter as command line parameter. If you have installed Ansible Tool on your Linux system, and you can type the following ansible command with version to print the current version of Ansible. On my VirtualBox guest Ubuntu 20.04, that's 3.8.x right now. specific versions supported. numbers, other printable symbols, and a small number of unprintable symbols If I flipped a coin 5 times (a head=1 and a tails=-1), what would the absolute value of the result be on average? The best answers are voted up and rise to the top, Not the answer you're looking for? Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, How can I implement ansible with per-host passwords, securely? to make certain constructs act the same way on Python 2 and Python 3: __metaclass__ = type makes all classes defined in the file into new-style Is lock-free synchronization always superior to synchronization using locks? Check ansible version with ansible command in Linux The easiest way to check ansible version is using ansible version command. Use the Ansible playbook mentioned earlier to demonstrate this. Installing specific package version with pip. using is to support Python 2 and Python 3 from a single code base. Type winver and press Enter. To explicitly configure a Python 3 interpreter, set the ansible_python_interpreter inventory variable at a group or host level to the location of a Python 3 interpreter, such as /usr/bin/python3. upgrading to decora light switches- why left switch has white and black wire backstabbed? Go to start and search for This PC. You can set it to auto, which will be default in the future, so it will work oppositely. Type winver and press Enter. The following details some of what I did. I've tried a few different versions of changing ansible_python_interpreter within my playbooks, like, ERROR! What are the consequences of overstaying in the Schengen area by 2 hours? Which Python version should be used on the client can be specified to Ansible. For compatibility reasons you will see a bunch of custom functions we developed (to_text/to_bytes/to_native) Asking for help, clarification, or responding to other answers. How can I remove a key from a Python dictionary? However, the first version doesnt work in Copyright 2020-22 CodeUnderscored.com. Learn more about Stack Overflow the company, and our products. Can an overly clever Wizard work around the AL restrictions on True Polymorph? Why was the nose gear of Concorde located so far aft? To check the version of the ansible package that has been installed: $ python3 -m pip show ansible Installing for development Upgrade to Python 3.5 to test. considered a tech preview. To learn more, see our tips on writing great answers. Option-1. We do have some considerations depending on the types of Ansible code: controller-side code - code that runs on the machine where you invoke /usr/bin/ansible, only needs to support the controllers Python versions. Can a private person deceive a defendant to obtain evidence? Help me understand the context behind the "It's okay to be white" question in a recent Rasmussen Poll, and what if anything might these results show? other programs is the connection plugins exec_command methods. When Ansible connects to these hosts it will automatically run these scripts and use them as facts, just like any other system property. Copyright Ansible project contributors. Can an overly clever Wizard work around the AL restrictions on True Polymorph? For example. This should probably do: $program | rev | cut -d ' ' -f1 | rev Option 1: Run tasks to fetch the version. Launch Command Prompt. Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. Ansibles main goals are simplicity and ease-of-use. The one were Use the auto_legacy_silent or auto_silent settings to disable the deprecation and fallback warnings. $pip install shade Note : if you use a company proxy, it's always useful to know the right pip synthax When non-ASCII characters are Your custom modules can support any version of Python (or other languages) you want, but the above are the requirements for the code contributed to the Ansible project. 1) There is ANSIBLE_PYTHON_INTERPRETER configuration parameter to set: Path to the Python interpreter to be used for module execution on remote targets 2) The version of Python on controller depends on how Ansible has been built. For Unicode Sandwich we know that Sample python_interpreter_test_inventory.yml Ansible inventory file. If you have installed Ansible Tool on your Linux system, and you can type the following ansible command with version to print the current version of Ansible. If you have pyenv active in your environment, this file will automatically activate this version for you. So let's assume you have the "should versions" stored as should["beer"], should["vodka"] and should["whiskey"]. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. How do I execute a program or call a system command? I do this for several related reasons: All Right Reserved. https://docs.ansible.com. octals must be specified as 0o755. Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. it, import it like this: Ansible can also use a system copy of six. We need to transform these bytes into text and use that throughout the is Lennart Regebros book: Porting to Python 3. However, it still uses Python 2.7 as the interpreter: I understand I can use "ansible-playbook --version -e 'ansible_python_interpreter=/usr/bin/python3'" command to run a playbook with Python version 3, or I can specifiy var within the playbook: However, I would like to have a permanent way to force ansible to use Python3 version. Check ansible version with ansible command in Linux The easiest way to check ansible version is using ansible version command. Using Ansible to check version before install or upgrade The Accidental Developer Using Ansible to check version before install or upgrade One thing that I do frequently with an Ansible role is check to see if software is already installed and at the desired version. (macos, Python 3.10, in my case). functions, the text string will be converted to a byte string inside of the about what variables hold text and what variables hold bytes. Outputs: rev2023.2.28.43265. Sci fi book about a character with an implant/enhanced capabilities who was hired to assassinate a member of elite society. with your distro to see if that applies in your case. Because we want Ansible to be able to manage a wide range of machines, the ansible-core code works on both Python 2 and Python 3. Ansible will automatically detect and use Python 3 on many platforms that ship with it. The shell command is used to set a shell-specific Python version. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. prefixing any variable holding bytes with b_. Current python version on the server is 2.7.6. To get an extra version of Python installed, the easiest option is to use a ppa, such as https://launchpad.net/~fkrull/+archive/ubuntu/deadsnakes-python2.7 so that someone else has done the work of turning Python into a package for you. Make sure all variables passed to a function are the same type. Using a list or set of lists known as inventory, Ansible operates against numerous managed nodes or hosts in your infrastructure simultaneously. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Thanks for the stuff, it executes OK but when I login to remote server and type, Welcome. 2. earlier, you will find that the byte string formatting here wont work. shell. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. To learn more, see our tips on writing great answers. What is the ideal amount of fat and carbs one should ingest for building muscle? The playbook is now running on the SLES 15 computer with Python 3 and has been completed successfully: On the remote system, tell Ansible to use a specified Python interpreter version. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. I do this for several related reasons: Not the answer you're looking for? 1 The system/Ansible Python. Using Ansible to check version before install or upgrade The Accidental Developer Using Ansible to check version before install or upgrade One thing that I do frequently with an Ansible role is check to see if software is already installed and at the desired version. What is the ideal amount of fat and carbs one should ingest for building muscle? Error: " 'dict' object has no attribute 'iteritems' ", How to uninstall a package installed with pip install --user. to yield text but instead do the conversion explicitly ourselves. Do I need a transit visa for UK for self-transfer in Manchester and Gatwick Airport. So, in other words, ansible isn't tool to check if something exists, but to make sure that something exists or not (by installing it or removing). But it's not how you should manage systems. Getting version is only additional thing, it's good to know how to check it, The open-source game engine youve been waiting for: Godot (Ep. The default interpreter path may also be set in ansible.cfg. Was Galileo expecting to see so many stars? On Python 2, if we pass a text string to these This PC. If you have pyenv active in your environment, this file will automatically activate this version for you. However, as shown in the example below, especially with Python an updated version is usually installed to an alternative path to not break system tools. It can also take a Python module only available with pip install and turn it into a system package for you, which is very useful. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, For example to print stats or check if I can run some script on this machine. Do I need a transit visa for UK for self-transfer in Manchester and Gatwick Airport, Active Directory: Account Operators can delete Domain Admin accounts. What is the ideal amount of fat and carbs one should ingest for building muscle? To explicitly configure a Python 3 interpreter, set the ansible_python_interpreter inventory variable at a group or host level to the location of a Python 3 interpreter, such as /usr/bin/python3. Option-1. installed. How can I achieve this? of bytes, a layer of conversion between, and all text type in the center. What is the ideal amount of fat and carbs one should ingest for building muscle? Strings can be an array of bytes (like in C) or 2. Makes division of integers always return a float. Ansible extension settings. rev2023.2.28.43265. For instance: $ ansible-galaxy collection list. You want to keep your application's development 3 and production 2 Pythons at an equivalent level. Of course you can directly compare the strings and make sure you always install the exact version. Why is the article "the" used in "He invented THE slide rule"? Find centralized, trusted content and collaborate around the technologies you use most. How can i check software version with Ansible? Python 3 will throw an exception when How does a fan in a turbofan engine suck air in? Checking Ansible Version. Thanks for contributing an answer to Stack Overflow! may work until a user causes an exception by entering non-ASCII input. Ansible does not need to use 3.10 however, so I will leave Ansible and system Python alone. Using Homebrew. What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? There is also an option to enable the automation execution environment and users can choose the container engine, image name, pull Yes, it should be available in the collected facts about the hosts (or directly using the setup module) as the variable ansible_python_version. The ansible-core code runs Python 3 (for specific versions check Control Node Requirements Be sure to mention Python3 in the bug report so Open the terminal application. When you test something new, it could require you to update a module that your Ansible installation depends on. How does a fan in a turbofan engine suck air in? to help projects create code that runs on both Python 2 and Python 3. Thanks for contributing an answer to Stack Overflow! Ansible to check version of software on remote hosts before install/upgrade Ask Question Asked 3 years, 9 months ago Modified 3 years, 9 months ago Viewed 5k times 2 Goal: Skip the host if version of custom software (non-rpm based) installed at remote host is greater than or equal to software version intended for upgrade. are patent descriptions/images in public domain? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Ansible uri modules changed_when check fails, template error with conditional check on "failed_when" ansible. It will open the system window where you will find the OS version and other information like type of computer/server, model, processor, RAM, manufacturer, etc. a specific module or playbook has any bugs under Python 3. version of pip. rev2023.2.28.43265. :ref: modules