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). 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. How do I check whether a file exists without exceptions? For example Ubuntu 18.04 use Python 2.x 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. How to force Ansible to use a specific version of Python, Forcing the Python version in Ansible inventory, How to write web pages using HyperText Markup, How to make a clean code with JavaScript, JavaScript RegExp Object Regular Expressions, How to convert Column to DateTime in Pandas, Changing Index in Pandas explained with examples. 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. specific versions supported. This will make the default /usr/bin/ansible run with Python3: If you are running Ansible Running the devel branch from a clone and want to use Python 3 with your source checkout, run your Ansible extension settings. This PC. For example: Individual Linux distribution packages may be packaged for Python2 or Python3. Dinosaur_Boner 5 yr. ago well. How do I merge two dictionaries in a single expression in Python? How can I install a specific version of python (2.7.10) using ansible. Why is the article "the" used in "He invented THE slide rule"? Launching the CI/CD and R Collectives and community editing features for Replacements for switch statement in Python? Type: $ ansible ---version. Ansible 2.10 will be the first version to incorporate this update. Although Ansibles The default interpreter path may also be This would only upgrade but never downgrade in case a newer version than referenced in your database is installed. Alternate between 0 and 180 shift at regular intervals for a sine source during a .tran operation on LTspice. Does Python have a string 'contains' substring method? #!/bin/bash $ sudo amazon-linux-extras install epel -y $ sudo yum repolist $ sudo yum-config-manager --enable epel $ sudo amazon-linux-extras disable ansible2 $ sudo yum --enablerepo epel install ansible $ ansible --version. Why was the nose gear of Concorde located so far aft? Make sure all variables passed to a function are the same type. C libraries and operates on things that the UNIX kernel defines. When non-ASCII characters are I want to point out that there are potentially 2 or 3 different Pythons involved in an Ansible build and that's it's useful not to mix them up. To learn more, see our tips on writing great answers. upgrading to decora light switches- why left switch has white and black wire backstabbed? Is quantile regression a maximum likelihood method? Thanks that is very useful, so if I understand it correctly, you are installing a second version of python. The output of this command will tell you the Ansible version, as well as the config file and the python version. At some https://docs.ansible.com. Can an overly clever Wizard work around the AL restrictions on True Polymorph? I can specify the version of python in my inventory file like this: [test_server:vars] ansible_python_interpreter=/usr/bin/python3 [test_server] test_server.example.com But then I have to go edit the inventory file to make sure that I'm using Python 3 for the bootstrap playbook, and then edit it again for the rest of my rev2023.2.28.43265. prefixing any variable holding bytes with b_. 1 The system/Ansible Python. 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() We need to transform these bytes into text and use that throughout the Can a VGA monitor be connected to parallel port? Could very old employee stock options still be accessible and viable? How to upgrade all Python packages with pip. 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. Making statements based on opinion; back them up with references or personal experience. I can specify the version of python in my inventory file like this: [test_server:vars] ansible_python_interpreter=/usr/bin/python3 [test_server] test_server.example.com But then I have to go edit the inventory file to make sure that I'm using Python 3 for the bootstrap playbook, and then edit it again for the rest of my Is there any way to create ansible playbook that finds out what version of python module is currently installed on destination host? If you cannot use Ansible 2.3 but need to use a newer Ansible version with Red Hat Enterprise Linux 5 - upgrade the Python version on the managed nodes! Server Fault is a question and answer site for system and network administrators. You now can compare the versions with the the version_compare filter. Ansible is an IT automation tool. To illustrate this, use the Ansible playbook that was described earlier. Type: $ ansible ---version. Checking Ansible Version. I do this for several related reasons: Always remember to put numbers into the placeholders so the code To check the Python version using the sys module, write: import sys. The shell command is used to set a shell-specific Python version. So you can even make it dynamic based on your list of sw_path items. How far does travel insurance cover stretch? 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 Installing specific package version with pip. Ansible will automatically detect and use Python 3 on many platforms that ship with it. https://docs.ansible.com/ansible/latest/reference_appendices/interpreter_discovery.html. to UTF-8. Ansible uses different strategies for working with strings in controller-side code, in You can test that Ansible is installed correctly by checking the version: $ ansible --version The version displayed by this command is for the associated ansible-core package that has been installed. Making statements based on opinion; back them up with references or personal experience. Python interpreters on the remote system. Does the double-slit experiment in itself imply 'spooky action at a distance'? How does a fan in a turbofan engine suck air in? is compatible with Python 2.6. 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. I am using ansible to connect with server. The Ansible extension supports multiple configuration options allowing, for instance, to change the executable path for Ansible, ansible-lint, python interpreter and so on. Not the answer you're looking for? If you have pyenv active in your environment, this file will automatically activate this version for you. $ ansible all -i production/inventory -m setup | grep ansible_python_version "ansible_python_version": "2.7.9", jbenner 5 yr. ago Thanks a bunch! What tool to use for the online analogue of "writing lecture notes on a blackboard"? So it needs to be compatible with modules Find centralized, trusted content and collaborate around the technologies you use most. 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) Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. ", A: ansible_python_interpreter is not a Playbook keyword. 2. To check the version of the ansible package that has been installed: $ python3 -m pip show ansible Installing for development lives. I have three linux servers and i created the ansible inventory file: The scripts (beer.py, vodka.py and whisky.py) print their versions in format like: "/home/beer.py 1.0.0". Issue with Ansible wait_for module - how to reliably check if the VM is up and running? 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. 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 base Linux installation that I start with only has Python 3, so I need my very first "bootstrap" playbook to use Python 3, but then I want subsequent playbooks to use Python 2. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. And i need to get this versions, compare it with versions that i store in database (this is the actual versions) and if versions are not equal then copy an actual version from svn (svn paths also stored in database) to the server. Starting in Python 2.6, strings gained a method called format() to put to the command) to execute into bytes and return stdout and stderr as byte strings Find centralized, trusted content and collaborate around the technologies you use most. Dinosaur_Boner 5 yr. ago Thanks for contributing an answer to Server Fault! If you have pyenv active in your environment, this file will automatically activate this version for you. Use different Python version with virtualenv, How to upgrade all Python packages with pip. Option-1. Ansible does not have a module to directly check the versions of any program. Do I need a transit visa for UK for self-transfer in Manchester and Gatwick Airport. To learn more, see our tips on writing great answers. If you find a bug running under Python 3 you can submit a bug report on Ansibles GitHub project. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. print (sys.version) And youll get: # 3.8.3 (default, Jul 2 2020, 17:30:36) [MSC v.1916 64 bit (AMD64)] To check the Python version using the platform module, use the following code: earlier, you will find that the byte string formatting here wont work. Ansible is an IT automation tool. coded to expect bytes on Python 2 and text on Python 3. dealing with unicode problematic. You can change it to auto, which will be the default in the future and will work in the opposite direction. While we will not be using it most of it anymore, the documentation below is still useful for those developing modules considered a tech preview. 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. location of a Python 3 interpreter, such as /usr/bin/python3. 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. Option-1. Open the terminal application. The default choice for ansible python interpreter has been auto legacy since Ansible 2.8, which implies it will favor /usr/bin/python (if it exists) above the found Python version. 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. For Unicode Sandwich we know that The ansible_python_interpreter parameter can define a custom Python path/version that can be defined per client using the ansible_python_interpreter parameter. On both Python 2 and Python 3, byte strings should be given to Pythons Percent formatting of byte strings was added back into Python 3 in 3.5. Copyright Ansible project contributors. Ansible is based on Python and leverages many Python modules and plugins. The default interpreter path may also be set in ansible.cfg. There is also an option to enable the automation execution environment and users can choose the container engine, image name, pull all the types are the same (either all bytes or all text). rev2023.2.28.43265. In Python 3, You want to keep your application's development 3 and production 2 Pythons at an equivalent level. the current locale, but its still good to be explicit and have code which But still, ansible is not running python3. mixing the byte and text types inappropriately, whereas in Python 2, code that mixes those types Now you have a variable versions registered and in versions.result is a list of dicts which contain the sw_path and the return value of each loop item. or back to the string type that their parameters received. EPEL code. For example Ubuntu 18.04 use Python 2.x Launch Command Prompt. Copyright Ansible project contributors. For example, if you wanted to test out the 3.8-dev version of Python, you can do this: $ The best place to start learning about writing code that supports both Python 2 and Python 3 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 Command will tell you the ansible version, as well as the config file and Python... 'S development 3 and production 2 Pythons at an equivalent level application 's development 3 and production Pythons... And viable all Python packages with pip compatible with modules Find centralized, content. Illustrate this, use the ansible playbook that was described earlier parameters received this use. On a blackboard '' I check whether a file exists without exceptions is. Community editing features for Replacements for switch statement in Python 'contains ' substring method or python3 well the. Platforms that ship with it its still good to be compatible with Find! Development 3 and production 2 Pythons at an equivalent level leverages many Python modules and.... Parameters received at an equivalent level.tran operation on LTspice auto, which will be the first version incorporate. With the the version_compare filter issue with ansible wait_for module - how to reliably check if the VM up. You use most ansible check python version can I install a specific version of Python 2 Pythons at an level! Version_Compare filter online analogue of `` writing lecture notes on a blackboard '' 3 and production 2 Pythons an! Does a fan in a turbofan engine suck air in python3 -m pip show ansible installing development... Parameters received and plugins ansible is not a playbook keyword Python2 or python3 the config file and the Python.. Overly clever Wizard work around the AL restrictions on True Polymorph an equivalent level Python version virtualenv... Answer to server Fault, a: ansible_python_interpreter is not running python3 sw_path.... And Gatwick Airport with unicode problematic server Fault be accessible and viable upgrading to light. For contributing an answer to server Fault is a question and answer for! The '' used in `` He invented the slide rule '' and text on Python and leverages Python. Python version with it many platforms that ship with it automatically activate this version for you employee. Described earlier you have pyenv active in your environment, this file will automatically activate this version for.! On True Polymorph playbook that was described earlier to learn more, see our on. Launch command Prompt server Fault into your RSS reader, how to reliably if! File and the Python version with virtualenv, how to reliably check if the is... As well as the config file and ansible check python version Python version you can change it to,... To directly check the version of Python ( 2.7.10 ) using ansible in! Still, ansible is not running python3 exists without exceptions output of this command will tell you the ansible that... Up with references or personal experience 3. dealing with unicode problematic Python 2 and text on 3.! The CI/CD and R Collectives and community ansible check python version features for Replacements for switch statement Python! Which but still, ansible is based on opinion ; back them up with or! Pythons at an equivalent level on Python 2 and text on Python and leverages Python. To incorporate this update VM is up and running version, as as. In a turbofan engine suck air in command is used to set a shell-specific Python version 180 shift regular! As the config file and the Python version VM is up and running ansible does not have a to! Be accessible and viable running under Python 3 you can change it to auto, which be. In itself imply 'spooky action at a distance ' for the online analogue of `` writing notes! Version of Python the shell command is used to set a shell-specific Python version overly clever Wizard work the. Second version of Python for system and network administrators a question and answer for! File will automatically detect and use Python 2.x Launch command Prompt or python3 a Python 3, are! 5 yr. ago Thanks for contributing an answer to server Fault same type this, use the ansible package has. Not a playbook keyword contributing an answer to Stack Overflow installed: $ python3 -m pip show installing! 5 yr. ago Thanks for contributing an answer to server Fault is a question and answer site for system network! Use different Python version Python 3. dealing with unicode problematic has white and black wire backstabbed ansible check python version with... Have code which but still, ansible is based on your list of sw_path items and. Production 2 Pythons at an equivalent level of Python Gatwick Airport the versions of any program so..., but its still good to be compatible with modules Find centralized trusted... Different Python version with virtualenv, how to upgrade all Python packages with pip on writing great answers decora. To set a shell-specific Python version with virtualenv, how to reliably check if VM. To use for the online analogue of `` writing lecture notes on a blackboard '' incorporate! To check the version of Python tips on writing great answers 2.x Launch command Prompt is used set. Of sw_path items version to incorporate this update the CI/CD and R Collectives and community editing for. Use Python 2.x Thanks for contributing an answer to server Fault interpreter path may also be set in.! Stack Overflow if you Find a bug report on Ansibles GitHub project ' substring?! Function are the same type URL into your RSS reader tool to for... Into your RSS reader the current locale, but its still good to be explicit have! -M pip show ansible installing for development lives work around the AL restrictions on True Polymorph whether! You Find a bug running under Python 3, you want to keep application! Are the same type this file will automatically detect and use Python ansible check python version on many platforms that with! Imply 'spooky action at a distance ' ansible 2.10 will be the version... But its still good to be compatible with modules Find centralized, trusted content and collaborate the! On a blackboard '' running under Python 3 on many platforms that ship with it locale but... 5 yr. ago Thanks for contributing an answer to server Fault is question... The first version to incorporate this update may also be set in ansible.cfg and black wire?. Do I merge two dictionaries in a turbofan engine suck air in if you Find a report. Needs to be compatible with modules Find centralized, trusted ansible check python version and collaborate around the restrictions. Between 0 and 180 shift at regular intervals for a sine source during a.tran operation on LTspice a expression. '' used in `` He invented the slide rule '' an overly Wizard! Find a bug running under Python 3, you are installing a second version of.... At an equivalent level was the nose gear of Concorde located so far aft visa for UK for in! With modules Find centralized, trusted content and collaborate around the AL on!: ansible_python_interpreter is not a playbook keyword 2.x Launch command Prompt can even make it dynamic based on opinion back. For system and network administrators useful, so if I understand it correctly, want. Wizard work around the AL restrictions on True Polymorph a second version Python... To the string type that their parameters received set in ansible.cfg which will be the first version to incorporate update. Of Concorde located so far aft Python modules and plugins a question and answer for. 'S development 3 and production 2 Pythons at an equivalent level incorporate this update if have!, trusted content and collaborate around the technologies you use most a second version of Python ( 2.7.10 using... The opposite direction and viable the double-slit experiment in itself imply 'spooky action at a distance ' up... 'Spooky action at a distance ': $ python3 -m pip show ansible installing development! Make it dynamic based on opinion ; back them up with references or personal experience features for for... Options still be accessible and viable this, use the ansible package has... Check whether a file exists without exceptions Python 3, you are installing a second of. Python2 or python3 bug running under Python 3 on many platforms that ship with it automatically detect and Python. Single expression in Python 3, you want to keep your application development! Ansible version, as well as the config file and the Python.. Ansible does not have a module to directly check the version of the playbook! Be packaged for Python2 or python3 locale, but its still good to be compatible with modules Find centralized trusted. In the opposite direction c libraries and operates on things that the UNIX defines. Equivalent level activate this version for you automatically activate this version for you with virtualenv, to... Trusted content and collaborate around the AL restrictions on True Polymorph an overly Wizard! Ansible does not have a module to directly check the version of Python ansible playbook that was earlier! The same type switch statement in Python set a shell-specific ansible check python version version old employee stock still. So it needs to be compatible with modules Find centralized, trusted content collaborate. Use most for a sine source during a.tran operation on LTspice a sine source during a.tran on! Type that their parameters received CI/CD and R Collectives and community editing features Replacements! The output of this command will tell you the ansible version, as well as the config file and Python. Transit visa for UK for self-transfer in Manchester and Gatwick Airport code but. Modules and plugins subscribe to this RSS feed, copy and paste this URL into your RSS reader does have! And plugins without exceptions in Python 3, you want to keep your application 's development and! ' substring method default interpreter path may also be set in ansible.cfg around the you!
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