Ansible string comparison. * - mysql|python|gvim list2: - linux - 6. 9 or 2. com", in other words this entire block should be skipp I’m trying to write a conditional to only act on members of a list of strings when two characters in the string are less than a given number. Ansible‘s regex_search filter is an invaluable tool for searching, filtering, and transforming text data in your playbooks. 04’, you can use the version test. For example: when: ansible_distribution_major_version|int == 7 In the case of a string that didn't actually contain a number, this will return 0. regex for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same test plugin name. 5 >= 6. So I'm wondering—if we're not supposed to compare to empty strings in a duck-typed language like Python, what are we supposed to do? There are a ton of use cases for comparison to an empty string. * - 6. For example: the registered output consists of services and its status 1: httpd disabled 2: tftp enabled I want to search the line and use it in when condition. mount is derived from ansible_mounts and describes the root partition. 5 version_compare was renamed to version To compare a version number, such as checking if the ansible_facts['distribution_version'] version is greater than or equal to ‘12. 0. For Red Hat Ansible Automation Platform subscriptions, see Life Cycle for version details. Mar 29, 2019 · To match strings against a substring or a regex, use the “match” or “search” filter. From reading 'when' documentation, it doesn't look like… Note This filter plugin is part of ansible-core and included in all Ansible installations. Important: The ansible-core 2. Dec 7, 2014 · Be careful with a variable called environment, it can cause problems because Ansible uses it internally. This Ansible string in variable tutorial will help you rank 1 on Google for relevant search terms. This rule checks for empty string comparison in playbooks. Filter and Select items from Ansible dictionary using selectattr example. 2 You can use a filter that changes the string to an integer. In this post, we'll unpack a common scenario where a conditional statement fails and provide you with the necessary steps to correctly compare variables containing string values. Literal comparison, like when: var == True, is unnecessarily complex. 17 I want to compare bin_version with 1 decimal value(6. Any help how to achieve to match the entire exact string in the array. Unsafe or raw strings When handling values returned by lookup plugins, Ansible uses a data type called unsafe to block templating. How to filter Ansible's JSON output and compare with string? Asked 9 years, 6 months ago Modified 6 years, 8 months ago Viewed 2k times Hi, I used TTP parser to parse the output of ‘sh run int gi0/0’ and below is output. I am currently working on a scenario where i need to compare two lists and print out the items which match on both lists . My first part is to get all the contents from an URL (Patch scheduled time for servers) Great it works in ansible 2. This type has no length. In most cases, you can use the short plugin name match. literal-compare This rule checks for literal comparison with the when clause. 10 one could also implement a Custom Filter Plugin and so a simple Ansible Jinja2 filter to split a string into a list. list1: - linux. In your example you are applying the ternary filter to the 'true' string. Marking data as unsafe prevents malicious users from abusing Jinja2 templates to execute arbitrary code on target machines. Here's what I have at the moment: vars_prompt: - name: user_name prompt: Enter the user name for password reset private: no - name: pass prompt: Enter the password - name: re-pass prompt: Re-enter the password tasks: - name: Verify This is the latest (stable) Ansible community documentation. How to select attributes from Ansible dictorinary. In most cases, you can use the short plugin name split. I'm trying to compare two variables in Ansible 2. Compare Strings to get Unique values in Jinja2 Ask Question Asked 8 years, 1 month ago Modified 8 years, 1 month ago Learn how to compare two lists in Ansible playbooks, verify their lengths, and ensure matching elements using robust filters and syntax. Notice foo is not wrapped in quotes and bar is wrapped in quotes. Does anyone know if this is possible? What I’m trying now looks like: set_fact: interfaces: TenGigabitEthernet 0/32 TenGigabitEthernet 0/33 debug: var={{ interfaces }} loop: “{{ facts }}” when: item[21:22]|int <= 32 When I attempt this, I get Learn how to use Ansible variables to store strings and dynamically reference them in your playbooks. Thanks. For example, with Ansible 2. 12. Does anyone know a workaround? Or a point where I can make a change in my parsing to remediate this difference? We are using Ansible 2. Here is my playbook: hosts: all gather_facts: no vars: wc2env: ‘{{ wc2env }}’ tasks: name: “Validando si debo deployar dominio en PROD” ansible. Say for example, i want to compare bandwidth value againt a number and check if it higher/lower than a certain value, how do i write … 1: Hello Is it possible to search in when condition two strings from single line by matching the registered output. ansible-lint file in your role/playbook. 10. It should ask for password twice and compare if they are equal. 7) so I'm splitti When you are providing both before and after, Ansible will do a comparison of the two strings and return a diff similar to what git will generate. Upgrading is an option if needed. 5 Q: Why doesn't the second debug when condition match ""? A: When there is no regex match object of type NoneType is returned. Please help e. difference for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter plugin name. Similar Q&A Compare version numbers using Jinja2 How to compare kernel (or other) version numbers in Ansible? Expected Output: It should skip the debug task because when BSA contains the string BLAH, it should not match any strings in the service_name list. mount contains a “/”. I again, thank you all for your help, I’m really learning a lot. This works as well. 9 as long as the rest of our infra will not be updated. builtin. List 1 contains numbers as integers. I have this list underneath w Hi All, Good day to all. As you‘ve seen, it enables concise regex patterns to be used for powerful data filtering tasks like log analysis, input validation, and search-and-replace. log”’ rules: var Ansible Rule 602, empty-string-compare, enhances playbook clarity by promoting direct length comparisons over empty string checks. stdout is a result of an earlier register task. My setup How to compare variable with other variable with string value in conditional Asked 5 years, 7 months ago Modified 5 years, 7 months ago Viewed 129 times Documentation of all ansible filters and some custom ones - lxhunter/ansible-filter-plugins Note This filter plugin is part of ansible-core and included in all Ansible installations. below is my shell which i want to integrate and run with ansible. split(). In most cases, you can use the short plugin name difference. when: ec2_tag_Name is match("testhost. To ensure code clarity you should avoid using empty strings in conditional statements with the when clause. The Ansible implementation ensures that unsafe values are never templated. How to use the diff beyond text content The diff has been designed to work on text content (string) but other types of variables generate good results as well. Hi, this when: item. The condition fails even though item. To be more specific, I'm pulling all MAC addresses on eac Ansible - Compare a variable (string) against the dict/list (of strings) and find the match with the highest number and extract that number Asked 3 years, 6 months ago Modified 3 years, 6 months ago Viewed 886 times Ansible condition when string not matching Asked 10 years, 4 months ago Modified 10 months ago Viewed 208k times Hi Team I wish to compare two lists, one list has regex expression and the second has ordinary data and return a match. 11 the split filter for manipulation strings is available as of Ansible v2. In this example, the when parameter is used to determine if the foo variable contains string "bar". 1 - mysql Thanks I have a playbook with a block where I am doing a string comparison on a block like so. bond0. These obviously cannot be filtered with difference(). . I am passing via “extra-vars” a variable called wc2env and I need to compare it with a string (stage or prod). When looking to determine types, it may be tempting to use the type_debug filter and compare that to the string name of that type, however, you should instead use type test comparisons, such as: Collection Index Collections in the Ansible Namespace Ansible. Thanks in advance. 5. regex_search for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter plugin name. Note This test plugin is part of ansible-core and included in all Ansible installations. Team, I have a kubeconfig file and i need to compare if context name and current-context are same, if yes, I want to proceed further else fail. List1 : [‘dba’,‘admin’,‘developer’] List2 : [’ user1: dba admin’ , ‘user2 : dba developer’, ‘user3 : operator’] So as per my scenario in comparing above two list sets , the output should be user1 user2 as both users have dba ansible. Collection Index Collections in the Ansible Namespace Ansible. We're on Ansible version 2. search test – Does string match a regular expression Edit on GitHub I added an example. This article covers analyzing and using the data in lists and dictionaries, which is crucial for anything you want to do with Ansible. Ansible Selectattr example. Learn how to compare a generated resource name against existing names in Ansible, find the one with the highest number, and increment it for new resource cre This is the latest (stable) Ansible community documentation. Workarounds Currently there are two ways to get past this: Head-in-the-sand: Add . Similarly, a check like when: var != True or when: var == False should be replaced with when: not var. As a workround in Ansible v2. 7. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. 11 but you can just use the Python method . Instead of testing empty string (off-topic see Ansible Lint: Don’t compare to empty string) Often, the when parameter is used to compare a variable to a boolean (such as true, false, 1, or 0), to a string (such as Hello World), or to an integer (such as 12345). Builtin ansible. mount != "/ does unfortunatly no do what it is supposed to do. 74 Since strings are lists of characters in Python, we can concatenate strings the same way we concatenate lists (with the + sign): {{ var1 + '-' + var2 + '-' + var3 }} If you want to pipe the resulting string to some filter, make sure you enclose the bits in parentheses: e. *") I had also found that when: 'testhost' in ec2_tag_Name can do a similar thing, it doesn't restrict it being at the start of the string - so yours is definitely the right way to do it. ) and compare the numbers, but I can't even find a friendly filter to explode the version string out, so I'm at a loss. ansible doesn't parse pg_master_ip. Imagine my inventory_hostname is "hello-test. The filter split is available since 2. I am trying to compare some variables so here is my case: pg_master_ip is an ip obviously. Problematic Code Ansible jinja2 compare strings non case sensitive Asked 5 years, 10 months ago Modified 5 years ago Viewed 6k times This is the latest (stable) Ansible community documentation. Any help appreciated. [ Get started with IT automation with the Ansible Automation Platform beginner's guide. Hi everyone, I’ve been struggling to get the difference between 2 lists in Ansible. In most cases, you can use the short plugin name regex_search. Ansible Rule 602, “ empty-string-compare,” focuses on enforcing code clarity and consistency when it comes to using empty string comparisons within conditional statements. Comparing versions Note: In 2. I want to convert Ansible string value to float and compare with another float value In my ini file bin_version=6. In most cases, you can use the short plugin name regex. 19/Ansible 12 release has made significant templating changes that might require you to update playbooks and roles. The playbook looks something like below. import_playbook: add_carrier_prod I've found the ansible_kernel fact, but is there an easy way to compare this to other versions? I thought I might manually explode the version string on the dots (. Use when: var to keep your playbooks simple. x, if I set my_var: 'testing' and have the following task: List comparison and list manipulation in Ansible « IT Dribble Note This filter plugin is part of ansible-core and included in all Ansible installations. I can't remember if it's in the docs, but here's a mailing list thread: 5 days ago · If a fact or variable is a string, and you need to run a mathematical comparison on it, use a filter to ensure that Ansible reads the value as an integer: You can store Ansible facts as variables to use for conditional logic, as in the following example: Learn how to compare two lists in Ansible playbooks, verify their lengths, and ensure matching elements using robust filters and syntax. match for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same test plugin name. So I just came here to note that I am not sure what to do instead of comparing to an empty string, since the language doesn't support strict types and this is the only way to check if a string is 'empty' or 'not empty'. Effectively you are comparing the value of expose_service with the string 'NodePort' and always get false in result. The Ansible check_string_contains module checks if a string contains a substring. g. To concatenate our 3 vars, and get a sha512 hash: Although I have checked previous similar questions, none seems to apply/work for me. I could not find a way to compare two variables. In most cases, you can use the short plugin name version. It is a very simple module that can be used to verify the contents of a file, a variable, or any other string value. 5 days ago · In most cases, you can use the short plugin name match. 9! 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 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. I have a new query. version test – compare version strings Note This test plugin is part of ansible-core and included in all Ansible installations. For explanation: item. Hi all… I have the below vars: ` client_destinations: apache-servers: pre_cmd: ‘$template custom,“/logs/apache-servers/%source%. version test – compare version strings Edit on GitHub I am trying to read the outputs, compare and check if a string is present within the output and proceed to the next step. List 2 contains numbers as strings. 6qqikx, c7kjet, lmi7m, 9ybs, cjif, axg0, bfl8, ywvayn, 9tkrb, ahzbfe,