Ansible search string in variable. regex_search for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter plugin name. for example, i want to check if my passed in variable contains "development" so I do this, as one of the answers on the post - name: Set NodeJS version for development branch set_fact: 5 days ago · Learn Ansible basics, core concepts, and advanced features. For example, if you want to split a string variable fruits by commas, you can use: Apr 8, 2016 · 127 If variable1 is a string, and you are searching for a substring in it, this should work: when: '"value" in variable1' if variable1 is an array or dict instead, in will search for the exact string as one of its items. Feb 21, 2026 · How to Pass Variables to Roles in Ansible Learn every method for passing variables to Ansible roles including role params, vars, defaults, inventory, and extra vars. In this module, you'll find all you need to know to get started with Ansible Playbooks. The story is, I need to create a task in my playbook that will prevent images with the version tag dev from deploying on production. May 5, 2021 · I'm trying to iterate over a list in Ansible and search for a string in each item in it, and then assigning the matched item to a variable. 4 days ago · 🎯 Objective Use common modules (apt, template, service) Understand variables See variable Tagged with automation, aws, devops, tutorial. Tags: ansible task I am trying to create a variable in ansible that is a verification of whether another variable contains a specific pattern or not. for example, i want to check if my passed in variable contains "development" so I do this, as one of the answers on the post - name: Set NodeJS version for development branch set_fact: Use the ansible. g. , log files, command outputs, or variable values) using regular expressions. Apr 8, 2016 · If I need a condition that works only when the variable does not contain a specific string, what is the correct syntax? I was thinking to something like this: when: variable1 is not search("value") but is not working Jun 28, 2022 · How to search for a string or word in Ansible results? I wrote a a task which just print if restart required. I have this yum module output and I need to extract the word "Complete | or_some_other_word" and this task will only run if aforementioned words exists. When you build an Ansible role, you want it to work out of the box with zero configuration while still allowing consumers to tweak every knob. 8 I've tried the answers in Run an Ansible task only when the variable contains a specific string but they give me syntax errors. 10. Feb 24, 2026 · In most cases, you can use the short plugin name regex_search. It has lessons about variables, conditionals, file management and templates, as well as working with roles . split filter to transform a character/string delimited string into a list of items suitable for looping. 2 and provides step-by-step solutions to reliably check for substring containment in variables. The `regex_search` filter is Ansible’s go-to tool for this, allowing you to apply regex patterns to strings and return matching substrings. Feb 21, 2026 · Learn how to use Ansible Vault password files to automate decryption and avoid typing passwords manually for every playbook run. "yum_update": { "changed": true, "changes": { "installed": [], "updated": [ "xz", Dec 29, 2025 · This blog dives into why these errors occur in Ansible 2. I'm new to ansible and not sure how to about this. builtin. Nov 20, 2025 · A common task in Ansible playbooks is extracting specific data from strings (e. Feb 21, 2026 · Description: Learn how to define and use role default variables in Ansible to create flexible, reusable roles with sensible fallback values. That is exactly what role default variables are for. 0. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. Jul 22, 2022 · 1 Ansible v2. Feb 21, 2026 · Learn how to use regex_match and regex_search in Ansible when conditionals for pattern matching in strings and command output. Discover how to manage Linux, Windows, containers, network devices, and cloud environments with Sander van Vugt. To be more specific, I'm pulling all MAC addresses on each node into a list and looking for a specific manufacturer prefix in each interface. May 5, 2021 · 4 I'm trying to iterate over a list in Ansible and search for a string in each item in it, and then assigning the matched item to a variable. bbr djb txd xvh lny kit mkt zmn trv ayc rvw nii ypo cmz cug