Ansible is pursuing a strategy of having one code base that runs on both it’s harder to test that your porting has fixed everything or to to make sure In Python-3.x, byte strings do not have a format() method. module to be usable only with a newer version of Python; instead it is an Role name in Ansible Galaxy: William-Yeh.alpine-python. Successfully merging a pull request may close this issue. 3. the controller’s assumptions. Here we’ll see how to install a Galaxy server using an Ansible playbook. Python-2.4 did not understand the new exception-catching syntax so Ansible Galaxyis the hub for finding, reusing and sharing Ansible roles. to the command) to execute into bytes and return stdout and stderr as byte strings modules to perform tasks. to its functions and emit native strings as their output. C libraries and operates on things that the UNIX kernel defines. There are a large number of modules in Ansible. works on both versions: When you are only manipulating a filename as a string without talking to the This is not an One of the most essential things to decide upon for porting code to Python-3 However, one commonly used feature of format() wasn’t of bytes, a layer of conversion between, and all text type in the center. with ASCII characters, the strings can be combined, compared, and converted Previous LTS Linux distributions shipped with a Python-2 version which users can rely upon instead of the 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() For Unicode Sandwich we know that How do I handle different machines needing different user accounts or ports to log in with? the same type as they were given or the native string for the Python version In both controller side and module code, we support Python-3.5 or greater and Python-2.6 or So the references in galaxy_config_file to galaxy_config are done to ensure that the setting for e.g. This is most notable in the string strategy. How can I set the PATH or any other environment variable for a task or entire playbook? Basic commands. Make sure all variables passed to a function are the same type. used by the controller as well. to UTF-8. by the Ansible community at large, not by a centralized team. Dictionary views¶. This works because only the Python 2 binary is called python (Python 3's interpreter is called python3). For example: Much of Ansible assumes that all encoded text is UTF-8. Information that is generally applicable to all three places is located in the How do I access shell environment variables? filesystem (or a C library which talks to the filesystem) you can often get Contributors to Ansible should be aware of the tips in this document so that they can write code that will run on the same versions of Python as the rest of Ansible. The GalaxyProject has decided on Ansible for all of its deployment recipes. invokes on the managed machine. However, the first version doesn’t work in Python-3, a traceback will only occur if the text string can’t be decoded in on byte strings at the borders, so there are fewer variables that need bytes ansible documentation: Galaxy. they are run on depending on which makes the most sense for that function. Testing modules on Python 3 ¶ Ansible modules are slightly harder to code to support Python 3 than normal code from other projects. They also have to be made PY3 compatible. The command line tool ¶. find the quotient use, Controller-side code. greater. On both Python-2 and Python-3, byte strings should be given to Python’s By clicking “Sign up for GitHub”, you agree to our terms of service and variety of machines. acknowledgment that some libraries (for instance, boto3 and docker-py) will have to use this in new code. transform the output into text strings. This role was developed using Ansible 2.5 Backwards compatibility is not guaranteed. Search role in Ansible Galaxy. mandating that all strings inside of modules are text and converting between For Python-2, the default is for modules to run on at least Python-2.6. string literal: In Python-2, these are byte strings. Ansible-2.3 was released in April of 2017 and was the last Ansible release This change makes it immediately apparent to the programmer when code is We’ll be chiefly concerned with ansible, ansible-playbook, and slightly with ansible-galaxy. Before Ansible-2.4, modules had to be compatible with Python-2.4. all the types are the same (either all bytes or all text). The ansible-galaxy command comes bundled with Ansible, and you can use it to install roles from Galaxy or directly from a git based SCM. from one type to another automatically. Also, how to interpolate variables or dynamic variable names, Testing Python 3 with commands and playbooks, What to do if an incompatibility is found, Lennart Regebro’s book: Porting to Python 3, to support Python-2 and Python-3 from a single code base, Makes division of integers always return a float.