Jinja2 selectattr multiple Try something like this for now I need the Jinja2 solution more. I am trying to get a template to figure out which group was most recently changed, but my results are weird probably due to my IF statement not comparing the two epoch times I have variables as below, (user enters these) vlanlist: - 3 - 18 - 700 - 57 below is what i gather from the devices and output is as follows: output5. 8. >>> import jinja2 >>> e = jinja2. However, we recommend you use In what context are you using Jinja2? If you're using it in Python it would be much easier to flatten the lists in Python, and if you're using Ansible, there are filters available that Create a notification on the same date when a start is the same as the current date at specific times. For extracting data from deeply nested dictionaries, the json_query filter is often a better choice than trying to chain native Jinja filters. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. First, it loads the template. THANK YOU very much. – Konstantin Suvorov Commented Feb 10, 2018 at 5:33 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Combining items from multiple lists: zip and zip_longest. I have a series of items which all take the form of <word><number> such as aaa01, aaa141, bbb05. Like in the docs odd, which will return only the odd elements of the list. View Source. Python: Multiple conditions for if statement in Jinja templates. 10. x; jinja2; Share. Tests . Tests can be used to test a variable against a common expression. I have a bunch of motion sensors placed into groups based on the room they are in. ) The term filter might be confusing at times because all the filters work very differently. 10, so we need to improvise. But what if the dictionary is not guaranteed to always have the key being tested actually defined? Welp, I didn’t really mean to post another post on what I originally considered to be Ansible 101 level knowledge that just I As Ansible Official documentation claims, All Jinja2 Filters can be used within Ansible. batch (value, linecount, fill_with=None) ¶. If block from the extended template contains something (like namespaced_decls from the example above), this content can be rendered with help of ‘super()’ function. Combining hashes/dictionaries. I'm not 100% sure about this interpretation though. Now I have the problem that I only get Undefined results with this example template: {{ states |selectattr('entity_id','in', integration_entities('twitch')) |map(attribute='game') |list }} When I remove the map line I can clearly see that the game attribute exists with a valid value. Ansible’s selectattr and rejectattr allow filtering of a list of dictionaries based on a specific test being executed against each dictionary’s keys and values. Since jinja does not support zip, and max is not available until v2. Replace and eval in Jinja. There is always the possibility to create my own first filter, but I am looking for a pure jinja2 solution. I haven't found this function in the official documentation, but it works similar to normal Python. Check if a variable is divisible by a number. 4. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Strings. Commented Dec 7 If you want to select objects from a list based on the value of an attribute, your best choice is probably the Jinja2 selectattr filter. The items can be called via an index, used in a loop or, like Dave suggested, if you know the values, it can set variables like a tuple. How to iterate through plain list in Jinja2 template and make an HTML table with Flask. so i read that the extension needs to be enabled jinja_env = Environment(extensions=['jinja2. As per the documentation: “selectattr () filters a sequence of objects by applying a test to the specified Use selectattr to filter a list of dictionaries based on a matching condition. Try this sample: {%- if not asnitem. For some reason, I can't seem to get selectattr and ipaddr to work together in ansible. 1 version on the server (where problem with selecattr doesn't exist) but on my laptop I don't see any jinja version after I The 14 lines of Jinja2 code below entity_id belong to no option. For example, given the alias example. From personal experience, and since you are not able to run any python code, there is no easy way to accomplish this in jinja. this is a very brief introduction to Jinja2. It is more common to use Jinja2 filters, rather than apply method as we did it in section above. Ansible offers a wide variety of filters to help users manipulate and manage data, making tasks easier and more efficient. Jinja already provides a mechanism for iterating over Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, Playbook. Combining objects and subelements. I must iterate while not hard coding servername. selectattr accepts a variable number of arguments and those are passed to the test. This plugin takes a list of dictionaries and applies a “test” to each iteration in the list. Here is solution without custom filter_plugin or running shell command. -The capitalize filter capitalizes the first character of a string variable. ansible: filter one element of the list to string. filters. Ansible bundles a very old version of Jinja2, which simply does not contain the equalto filter. This is useful when dealing with lists of objects but you are really only interested in a certain value of it. Similarly to reject there's also selectattr filter that works the same as I have tried using an if statement with defined condition, but it fails at the first and I can't avoid it since selectattr is a generator. Also tried JSON query but still missing how to lower or upper case all for compare to work. bar just that always an attribute is returned and items are not looked up. I am trying to get a template to figure out which group was most recently changed, but my results are weird probably due to my IF statement not comparing the two epoch times see the: Jinja2 Docs - int builtin filter for more info. 13. 6 2 is greater than or equal to 1 2 is greater than or equal to 2 Output Nunjucks v2. Some are not available for It seems Jinja2 (as supported in Saltstack) doesn't support regex matching, unless I'm missing something? A number of frameworks that leverage Jinja2, such as Ansible have custom Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about I am creating a low battery sensor which is a list of batteries that are less than 30 percent in my case. Output Twig (error) v1. py file No, you can't. See Notes on subscriptions for more details. Required Files. *a[rp]. In this project, I'm making use of three key files. So id therefore like to add a json filter so I can be sure I get the correct result for my sensor. 0, this means that you can actually use a dictionary filter on a list. (Also see Conditionals. env has a key with name n1 I imagine this can be done with a nested loop, but cannot figure out how. I've read the documentation and have tried approaches like Convert integer to string Jinja and compare two variables in jinja2 template. Filters such as selectattr () can accept tests as a parameter. - { device: 'spine1', interface: 'GigabitEthernet0/0', ip: '10. 6 alpha bravo delta Output Nunjucks v2. Make that function available in the global namespace; i. Regex match for key in jinja2 selectattr() 3. You can only use templates with an option and only if the option supports templates. While you can pass several parameters to the macro, only one caller can exist. 1. 30. Looping over subset in Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about In Jinja2, you can use regex_search() to do a regular expression test of your string: field | regex_search("^i-") will return true if your string has "i-" and the beginning of the line Jinja2, one of the world's most popular data rendering engines, is used as a templating language to render individual information. Beside “filters“, there are also so-called “tests” available. Get an attribute of an object. dependancies ; Queryset 2 = SelectedGroups; But really I want it to display if the dependancies have been satisfied or not instead of simply listing the A string variable can be split into a list by using the split function (it can contain similar values, set is for the assignment). If no test is specified, One area that I see most people struggling with is using some of the more advanced jinja filters such as select, selectattr and map. I have variables as below, (user enters these) vlanlist: - 3 - 18 - 700 - 57 below is what i gather from the devices and output is as follows: output5. For example, given this input: iam_users: - name: test-user-1 state: present groups: [developers Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I'm trying to create a Jinja2 environment with the intention of only using it on JSON templates. What I am trying to do looks like : - name: Get size of FS set_fact: tmp_size_ I probably should have opened this issue with Jinja2. Now here's the thing. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. ansible template append to file. e. Share. Unable to reference Jinja 2 variable inside a function. Environment() env. j2 file and the data from interfaces. I think the issue is that python dictionaries have a built in function called items and somehow selectattr is not distinguishing between a key called items vs a function called items. To use the Jinja2 number builtin test (which returns true if the variable is already a number): a better solution, rather than using the int filter (which will cast a integer like string to an int) is to use the builtin test number, like this: {% if variable is number %} hello {% endif %} It seems that without the list filter, selectattr returning a generator object does not seem to allow converting to a boolean for the test evaluation. I am able to do this for json attributes, usingt the json_attribute_path, however im unsure how to do this for the value_template. Example 1 should output: Suppose I have an array of objects or dicts, I want to count the number of objects in the array with an attribute with a specific value. Nothing in your data has an attribute named Aliases[0], so that's why your selectattr filter is failing. The core component of Jinja is the Environment. Improve this question. python; dictionary; Jinja2 is able to do "regular" item selections for the list and the dictionary, given we know the key of the dictionary, The if operator checks the validity of the statement one by one and as soon as a statement is found valid, it exits the operation, that is the reason why it wont work with these two conditions. However, it requires additional fact to be set in a with_items loop (php_fmt). From the Jinja2 template designer documentation: {% if variable is defined %} value of variable: {{ variable }} {% else %} variable is not defined {% endif %} Share. Helps in filtering the attributes or in applying other available filters onto How to compared a nested pillar key value in an if statement in jinja2 for saltstack. Follow If you're stuck on an older version (like the jinja2 from google app engine), you would probably be best doing the processing before passing it into the template, if possible. selectattr (value: 't. 0 2 is greater than or equal to 1 2 is greater than or equal to 2 Output Liquid v3. I want to extract the names of all customers when any of the dicts in the list mylst. The first one is made by selecting all dicts not having the type atttribute. 1 Like. There is a jinja selectattr expression: {{ foo|selectattr("name", "equalto", "bar42")|list }} Now I want to filter based on fact that there is '42' in the name. For example, if a variable contains latte the filter statement {{variable|list}} generates ['l','a','t','t','e']. 2 Unknown "selectattr" filter. dev/sda). For example: - name: Print a capitalized string debug: msg: "{{ 'hello world' | capitalize }}" Convert the value into an integer. This is useful for allowing more advanced user-input that use Jinja2 templates. The basic usage is mapping on an attribute. #separationofconcerns Thanks! makes sense, I copied/pasted from two different areas of my automation. See builtin filters in the official Jinja2 template documentation. ANSIBLE_STDOUT_CALLBACK=debug and filters like to_nice_json because it really helps me see the structure of the data in a multi-line format rather than in a single line JSON blob with escaped quotes and embedded newlines. Example usage: {{ users|selectattr("is_active") }} {{ users|selectattr("email Advanced Filtering with selectattr. asn in [45102, 24429, 132203] %} in operator here checks presence of the left-hand value (asnitem. How do we do a wildcard search with Ansible nested variable? YAML test: name: address: zipcode: 12345 Ansible Template Variable {{ test[name][addre*]. a jinja2. Jinja2 ships with many of these. Add a comment | 3 Answers Sorted by: Reset to default 1 if you want to do this in your jinja template, then you can use the following code. The template would look something like this: Reference: jinja Applies a filter on a sequence of objects or looks up an attribute. Still, we cannot properly fit a logical and in there, so we'll need The closest thing I have found is this, from the official Jinja2 documentation: It is also possible to sort by an attribute (for example to sort by the date of an object) by specifying the attribute parameter: {% for item in iterable|sort(attribute='date') %} {% endfor %} python; The answer is to filter in two passes; first filter out the items where the attribute is undefined, How do I filter a list by existance of an attribute in ansible/jinja2? 2. I. Any help is appreciated! I have the following YAML code that gives me a list of all entities that can be updated: {% set entities = states|selectattr('domain','in','update') %} {% set updates = entities|map(attribute='entity_id')|list|sort %} {{ updates }} How can I use selectattr or rejectattr filters to get only the entities that have an update available and their state is ‘on’? I am really Ansible jinja2 not concatenating to list using with_items. 0. I’m going to use the selectattr filter to select only one information from Ansible System Information (Facts). Follow edited Jul 29, 2014 at 0:16. This is often a better approach than failing if a variable is I would like to set a variable which would be a fraction of the value extracted with a jinja filter in a role. In this post I will try to give some easy to understand examples of how to use these filters in order to filter lists and dictionaries in your Ansible playbooks. . Jinja already provides a mechanism for iterating over elements that have a specific value: Jinja2 does not have any filter for finding sub-string or regexp, so the only solution was to create a custom filter. For example, if a variable contains hello world the filter statement {{variable|capitalize}} outputs Hello world. Compare two grain values inside state. I may just open another question with that one. 0. For example, given this inventory: [postgresql] host1 ansible_host=1. One such function or filter is map. Is it possible to access an entity’s defined extra attributes using the jinja selectattr() function? I’m trying to create a sensor that will count and list open UI browser windows using sensors created by browser_mod integration. *')) Which would yield: what am I talking about? The match filter and This indeed works. In this post I will try to give some easy to understand examples of how to use these filters in order to Well, you‘re in luck – Ansible provides two powerful Jinja2 filters just for this purpose: selectattr and rejectattr. Queryset 1 = group. 2 postgresql_cluster_port=5432 This is probably more of a rant but, you asked: This was my What The * (and still is) when working with Home Assistant There is so much that is user friendly, preconfigured and works out of the box in HA (thanks to all the work of everybody who has contributed) and then I find myself writing “jinja2” Who thinks coding where you you have to surround statements with Modify the jinja2. template. I'd like to maintain a 'centralized' (& vaulted, of course) list of username/passwords to be used with various host groups (rather than splitting it up in all the relevant group_vars files). Step-by-Step Solution. jinja2; Share. List of Builtin Filters¶ abs (number) ¶. Below appRole. Each print should output "Hello John Doe!", the first does. Iterator[V]' ¶ Filters a sequence of objects by applying a test to the specified attribute of each object, and only Is selectattr filter expecting all the dicts in the list to have the same keys? More precisely, it is expecting all dicts in the list to have the attribute you are selecting on. Output Twigjs (error) v0. {# . 7+, so it seems that you may have some python package mess on your system, so Ansible uses wrong Jinja2. html, Using ansible 2. I am trying to convert a string that has been parsed using a regex into a number so I can multiply it, using Jinja2. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Jinja Tip! Use selectattr to filter a list of dictionaries based on a matching condition. 4 In an Ansible playbook, I have a list of dictionaries, and I want to loop on just the subset of items that have a pct_used value of greater than 90. See builtin tests in the official Jinja template documentation. UndefinedError: 'dict object' has no attribute 'a'. How do I filter a list by existance of an attribute in ansible/jinja2? Hot Network Questions A short story about very small elephants who could fly Would Spike Growth affect multiple floors or inclines? How are applications where any command can be run CLI, but also has a UI element Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company So I have two query sets, I'm struggling to find a way to check if query set 1 has all it's elements in query set 2. Python script: This script does a couple of things. The name of the A string variable can be split into a list by using the split function (it can contain similar values, set is for the assignment). Given your list of lists, you should be able to use the sum filter on your list. The Low Level API on the other side is only useful if you want to dig deeper into Jinja or develop extensions. Selecting values from arrays or hashtables You can provide default values for variables directly in your templates using the Jinja2 ‘default’ filter. Note. For example, given this input: iam_users: - name: test-user-1 state: present groups: [developers In summary: selectattr/rejectattr – Optimized for filtering Ansible inventory data structures like JSON host dicts; map() – Best for transforming lists by applying an attribute mapping json_query – Specialized for JSON strings, less ideal for native dicts/lists; JMESPath – Advanced JSON manipulation with more query flexibility ; So while alternatives exist, selectattr Thanks! makes sense, I copied/pasted from two different areas of my automation. The above code is splitting each element into multiple characters: [ { " u s e r I tested the above nested loop in a simple Python script and it works fine but not in Jinja template. For example, if a variable contains hello world the filter statement {{variable|capitalize}} outputs Jinja Selectattr: How to Filter a List of Dictionaries with Jinja. It contains placeholders that get filled with real data. Hot Network Questions Sub panel location question Find the one sentence that is wrong in the following proof. time friendly_name: Browser UI Connected unit_of_measurement: Browsers icon_template: The in logical operator should help you in this case. update(zip=zip) # use env to load template(s) This may be helpful in separating view (template) logic from application logic, but it enables the reverse as well. The high-level API is the API you will use in the application to load and render Jinja templates. This is probably more of a rant but, you asked: This was my What The * (and still is) when working with Home Assistant There is so much that is user friendly, preconfigured and works out of the box in HA (thanks to all the work of everybody who has contributed) and then I find myself writing “jinja2” Who thinks coding where you you have to surround statements with The jinja2 selectattr() and map() filters cannot filter a list of dicts where the filtering key begins with a . In most cases, you can use the short plugin name intersect. It contains important shared variables like configuration, filters, tests List and dictionary manipulation (e. exceptions. How many minutes do you expect every single SO reader to spend on that? – techraf. I'm writing an Ansible Template in Jinja, which has the following pattern: # Inventory [Group1] vm1 cluster=clusterName [Group2] vm2 Notice that the second group does not have the property cluster Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Built-in template filters used with the | operator. author }} again with the value "test". #} is only meant for Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about EDIT: Since I got a notification that @brodykenrick liked this I should probably update it to not lead people on the wrong path. While there are numerous filters available, I find myself frequently using the selectattr filter in the context of Network Automation. This file is a template to be used within an ansible script. So far I have used this in my jinja2 template. 1, with netaddr installed, on MacOS, python 3. 1' } - { device: The first solution uses only filters available in ansible by default: rejectattr you already mentionned and its counterpart selectattr. . poudenes (Poudenes) October 27, 2020, 8:41am 10. globals. Ansible selectattr filter is basically an inherited version of Jinja selectattr filter. Can anyone assist please. I'm aware that each individual template can use filter sections but would like to avoid this. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Define a Jinja context function to return the jinja2. The name of the I have a collection of namedtuples which looks like this : [('mountpoint=X',state='UP'),(mountpoint='Y',state='DOWN'),(mountpoint='Z',state='DOWN')] I pass this The easiest solution is probably to use Ansible's group_by module, which allows you to create groups dynamically based on the values of host variables. """ 2 3 import math 4 import random 5 import re 6 import typing 7 import typing as t 8 from collections import abc 9 from itertools import chain 10 from itertools import groupby 11 12 from markupsafe import escape 13 from markupsafe import Markup 14 from Combining items from multiple lists: zip and zip_longest. Environment global namespace itself if you see fit. If you must use a Jinja2 feature (like map or selectattr), Given I have two variables {{ profile }} with a value "test" and {{ element. Since v2. To use a Jinja2 filter in an Ansible playbook, you can apply it to a variable or expression using the | operator. This will fire always change != to == so when both IP are same it will fire now. Improve this answer. Filters such as selectattr() can accept tests as a parameter. In addition to those, Ansible supplies many more. The match test accepts a regex pattern (REGular EXpression) so the period has special meaning. yml. Many core functions are available. And not inverts the result of As per the Jinja documentation:. climate|rejectattr('attributes. list. If a test is provided, it's applied to the attribute's value. I had the same problem and I realized that was the types. Pulling my hair out over this one. If not all Essentially, I want to do something like: ['hello', 'apple', 'rare', 'trim', 'three'] | select(match('. From the jinja2 documentation: Applies a filter seems like * needs . You can only use comments outside of such statements, and then only with {# . The main difference between tests and filters are that Jinja tests are used for comparisons, whereas filters are used for data manipulation, and have different applications in The area selector shows an area finder that can pick a single or multiple areas based on the selector configuration. 13 on Python 3. 7. But then it fails with a jinja2. html, base_client. 91 'if' statement in jinja2 template. python jinja2: using variable in template with conditional. Ansible selectattr filter is to select matching objects from the dictionary by applying a test across all the objects in a dictionary/sequence. Contribute to pallets/jinja development by creating an account on GitHub. Example code (from using the templates editor to debug what I’m working toward): {% for rad in states. 9,683 6 6 gold badges 60 60 My question is how do I modify the values passed to a dictionary in jinja2 (This question has been asked here, but I find the answer confusing and it only answers the merging part) Answer EDIT: Jinja2 provides the 'do' extension. So, again as you've found, {{products|count}} (or equivalently {{products|length}}) in your template will give the "number of products" ("length of list") Hi! Since one of the latest updates templates can now render lists. For example, if I have data in a playbook like this (and a template task): - hosts: localhost gather_facts: false vars: var1: - name: thing1 color: red - name: thing2 color: blue var2: - name: bob likes: blue - name: alice likes: green tasks: - template: src: jinja2's builtin filters are documented here; and specifically, as you've already found, length (and its synonym count) is documented to: Return the number of items of a sequence or mapping. However, it's not well parsed and i' getting many breakline and space between the character. Django if logic in template. My batteries are split among multiple groups. In this comprehensive 2500+ word guide, we‘ll dig deep into selectattr() then iterates through each object in the list and checks the specified attribute. capitalize. Thus, I would like to apply the tojson filter on every rendered value. How can I filter certain element in a string. If this behavior is intentional, it should be documented. md file! Warning. TemplateSyntaxError: expected token ':' got } Can anyone suggest how to get the {{ name }} that appears in the template into the url_for() so that when I Strings. The same with ‘extends’ statement here defines the template to extend. divisibleby (value, num) ¶. Line 6 uses “selectattr” filter, which acts as a filter for a list of objects. If that’s what you want to do then it can be done without the use of Jinja2 has no support for comments within a {{ }} statement. I was just able to use the following to narrow the results from ec2_asg_facts to only those with a given variable value in the launch_configuration_name. The idea is to add two lists. 7 there is selectattr: Filters a sequence of objects by applying a test to the specified attribute of each object, and only selecting the objects with the test succeeding. j2: This is a Jinja2 template file where I've outlined the structure of the Cisco interface config. 2 From personal experience, and since you are not able to run any python code, there is no easy way to accomplish this in jinja. Using ansible 2. This selector does not have any other Hello, Basically I would like to filter Twitch entities by “game”. html, then extend it with further base_admin. Subscribe to our newsletter and stay updated. This filter passes only objects matching certain criteria. The correct solution, as noted by one forum user, involves using the selectattr filter with the subset test. Jinja conditional clause dependent on data type. Unfortunatly, the order of the array can change. Some questions for those in the know, would probably help understand this state of affairs: A very fast and expressive template engine. Now I have the problem that I only get Undefined results with this example template: {{ states How do we do a wildcard search with Ansible nested variable? YAML test: name: address: zipcode: 12345 Ansible Template Variable {{ test[name][addre*]. 2. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by jinja-filters. It’s utilization is something like the following: Manipulating data with the Jinja filters, Map, Selectattr, and Select provides quick and efficient ways to create new data structures. This comment here: Home Assistant has How many minutes do you expect every single SO reader to spend on that? – techraf. And selectattr is just the filter we need here, since it allows to select items out of a list of dictionaries based on a property of those dictionaries. 9. Commented Apr 23, 2017 at 14:14. I guess I have a problem with data types, I'm just not sure how to write this syntax so that it works. Iterable[V]', * args: Any, ** kwargs: Any) → 't. 0 2 is greater than or equal to 1 2 is greater than or equal to 2 Output Swig v1. msg: [ { "INTE Templates are one of the most powerful tools available in Home Assistant. as kind of an escape character. Multiple expression RegEx in Ansible. Yes, that renders it useless unless you want to filter odd elements. For instance string() or number(). Jinja2 has a few filters that provide this functionality: map, select, reject, selectattr, rejectattr. Check if an object has the That throws a jinja2. com, the following expression will extract the corresponding DomainName attribute: The first solution uses only filters available in ansible by default: rejectattr you already mentionned and its counterpart selectattr. Template globals dictionary If I try to replace env in Jinja2 template (hardcoded) like below condition does satisfy to true: {% if 'abc' == "abc" %} serverURL: '{{ server_abc }}' So that Otherwise you compare two strings, for example abc and {{env}} and you always get a negative result. That’s an interesting interpretation but the period doesn’t serve as an escape character. zipcode }} I tried jinja2 filters like match, search, equalto but none of them returns expected result. Jinja2 comes with a number of useful filters, capitalize is one of them. If the conversion doesn't work it will return 0. Ansible conditional omit filter with looped items. After several fruitless hours of searching I have yet to figure this one out. Expected Behavior. Most programming languages have loops (for, while, and so on) and list comprehensions to do transformations on lists including lists of objects. Check if an object has the same value as another object: {% if foo. (period) character. – igorT. “selectattr () filters a sequence of objects by applying a test to the specified attribute of each object, and only selecting the objects with the test succeeding. A filter that batches items. To add that extension to pyramid, do the following in the __init__. 2 Invalid filter "selectattr". I followed the steps below to fix my problem. import jinja2 env = jinja2. Set of ‘block’ statements after defines actual filling of the corresponding blocks from the extended template. -The list filter is used to return a list of characters. Ansible, Regular Expression for first character of string. do']) and i am not entirely sure if it is in our environment – Bisoux Commented Sep 15, 2022 at 19:36 Ansible's Jinja2 templating language provides a powerful way to process data through filters, and the answer to this problem involves using the selectattr filter with a subset test. There are numerous Jinja 2 filters but Ansible brings some additional filters. # Input data interfaces: - { device: 'spine1', interface: 'GigabitEthernet0 Reference: Stack Overflow With the pipe character you pass a value to a filter. attr (obj, name) ¶. Provide details and share your research! But avoid . I have tried to use defined but it would imply multiple if statement. expression is equalto 42 %} the foo attribute evaluates to the constant 42 {% endif %} Given I have two variables {{ profile }} with a value "test" and {{ element. How to split a string into a list with Ansible/Jinja2? 3. , join, map, selectattr) Applying Jinja2 Filters in Ansible Playbooks. Elsewhere people are directed to write custom filters. However the list workflow seems to be pretty limited. use if condition inside html tag using jinja tag. 2. Their example is good, it shows a test and how it’s used, and then the same thing with selectattr. Helps in filtering the attributes or in applying other available filters onto Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. map: this is a basic for loop that just allows you to change every item in a list, using the ‘attribute’ keyword The two closest ones look like 'sameas' and 'equalto' but those don't quiet work. Jinja2 templates If condition not working correctly. If unintentional, it should be corrected. I do feel a jinja2 loop would be a great solution is, but I'm experiencing an odd behavior (it turns lists to strings eventhought I'm using |from_json. #} is only meant for disabling part of a template or adding comments outside of Jinja2 does not have any filter for finding sub-string or regexp, so the only solution was to create a custom filter. Jinja2 ships with many filters. 1' } - { device: 'spine1', interface: 'GigabitEthernet0/1', ip: '10. This filter plugin is part of ansible-core and included in all Ansible installations. Below we want to report on private BGP AS numbers Is it possible to access an entity’s defined extra attributes using the jinja selectattr () function? I’m trying to create a sensor that will count and list open UI browser windows using The following are 17 code examples of jinja2. Here’s the problem I faced: I’m trying to create a sensor with a list of links, parsed via IMTP i Below is a contrived example of my data. If no test is specified, the attribute’s value will be evaluated as a boolean. Don't miss anything. I’m very new to Jinja2 so trying to get my head around things. selectattr() max() attr() Filters. equalto (value, other) ¶. The value of the input will be the area ID The template selector can be used to input a Jinja2 template. slm. EDIT: Nevermind. Common tests include: equalto: Keeps objects The rewritten example uses the same selectattr filter plugin to filter a list of servers based on multiple attributes, and then apply different actions to each filtered subset of servers. This can simplify creating lookup dictionaries and avoids complex loops or Jinja templating options. As per the documentation: “selectattr() filters a sequence of objects by applying a test to the specified attribute of each object, and only 14. Related. The filter you would like to combine select with is equalto. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I have a Jinja2 dictionary and I want a single expression that modifies it - either by changing its content, or merging with another dictionary. Tests in Jinja are a way of evaluating template expressions and returning True or False. Some for example reduce a result set of a hash/array, some modify contents of a Working with Ansible Jinja2 code and filters. Which I'd like to avoid. The code look like this: As Ansible Official documentation claims, All Jinja2 Filters can be used within Ansible. #} or ## comment. msg: [ { "INTE passing value into a range defined in jinja2 via python. Jinja2 has no support for comments within a {{ }} statement. 5. Return the absolute value of the argument. Get all the latest posts delivered straight to For what it's worth, i just deployed multi-level extending with jinja2 with perfect success, thanks to this post so i have a base. foo|attr("bar") works like foo. Filters in Jinja2 are a way of transforming template expressions from one kind of data into another. Someone had to code all of those filters and make them available to us. If block from the Should (or can) this be done natively with Jinja2, or should I adopt an alternative approach? python-3. Jinja ships with many of these. This is shown in the example with 2 arguments and it’s described in the input types. You can nevertheless pass a parameter back from your macro to the calling context and simulate your desired behavior like this: I'm not sure how to properly write this test syntax. 24. 9,683 6 6 gold badges 60 60 I have a rest sensor which returns an array of information. Asking for help, clarification, or responding to other answers. intersect for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter Iterating multiple lists in parallel with Python inside HTML (Flask) 0. Set a condition from inside of a loop Jinja2. Still, we cannot properly fit a logical and in there, so we'll need High Level API¶. It helps us to filter and iterate complex datasets and a list of objects. When I'm entering escaping hell in ansible, I tend to take advantage of the yaml folded and literal block syntax. 0 alpha delta Output Liquid v3. do_selectattr(). How to filter a list by its attributes in an Ansible Playbook. Commented Dec 7 If you want to select objects from a list based on the value of an Note. map: this is a basic for loop that just allows you to change every item in a list, using the ‘attribute’ keyword you can do the transformation based on attributes of the list elements. You can check the types of the variables using one of the many built in tests that jinja2 has available. remote_ui_connected: entity_id: sensor. We would like to show you a description here but the site won’t allow us. You can use Jinja2 templates in your documentation mixing it with Markdown in the same . He I'm having a similar problem where I want to assess multiple conditions in an if, but when I add brackets the template does not compile. This is often a better approach than failing if a variable is Loops and list comprehensions¶. The first one is Similarly to reject there's also selectattr filter that works the same as select but is applied to the attribute of each object. However, despite Define a Jinja context function to return the jinja2. One area that I see most people struggling with is using some of the more advanced jinja filters such as select, selectattr and map. Hot Network Questions Do we Does Jinja2 have any way of wrapping text so that the long comment line is limited in length and split over however many lines is necessary? So far I have: # {{item. I have the following template ‘extends’ statement here defines the template to extend. --- # simple test of ipaddr with selec I have a collection of namedtuples which looks like this : [('mountpoint=X',state='UP'),(mountpoint='Y',state='DOWN'),(mountpoint='Z',state='DOWN')] I pass this I would like to set a variable which would be a fraction of the value extracted with a jinja filter in a role. Inside the root directory of my playbook, I created a directory "filter_plugins" and wrote a custom module in python and placed the file inside this directory. I know this is a long time coming, but I think that there is a good answer that hasn't been brought up yet. There are MANY ways to do additional filtering, but what I’m going to focus on is using the “selectattr” plugin. Exclude AnsibleUndefined from a list. Day. Take into account that templating happens on the Ansible controller, not on the task’s target host, so filters also execute on the controller as they manipulate local data. – I'm working in Ansible 2. 3. zipcode }} See the default() filter for a simple way to set undefined variables. Block within block in Jinja2. 14. The search test doesn't seem to be well documented, and it may be an add-on? I thought I would share in case others wanted to do something similar. First, you need to get the longest length of either list. Python returns "invalid syntax" with Jinja2 set tag. 1 postgresql_cluster_port=5432 postgresql_harole=master host2 ansible_host=2. Context object, which is essentially a dictionary of the global variables/functions. The advantage is that it lets you write jinja blocks without having to surround them with quotes, which eliminates one quoting level hence one escaping level as well. 4. Problem with Jinja code if The two closest ones look like 'sameas' and 'equalto' but those don't quiet work. Follow edited Feb 20, 2018 at 21:09. I've edited my original json data as it is more complex than original. builtin. Environment or jinja2. You can override this default using the first parameter. The 14 lines of Jinja2 code Suppose I have an array of objects or dicts, I want to count the number of objects in the array with an attribute with a specific value. 5 Unable to find filter selectattr This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. In many instances in ansible, I’ll use an ordered list of dictionaries as my data model; this specifically The following are 17 code examples of jinja2. Output Jinja2 v2. In other case the whole content of the block will be selectattr is available since Jinja2 2. You can also override the default base (10) in the second parameter, which handles input with prefixes such as 0b, See the default() filter for a simple way to set undefined variables. You can use them to create sensors, set automation triggers, define automation conditions, and much more. I got a warning when running with the jinja2 template delimiters: ` [WARNING]: when statements should not include jinja2 templating Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company i'm trying to read/store a multiline variable in jinja2. asn) in the right-hand list ([45102, 24429, 132203]). For example, if I have data in a playbook like this (and a template task): - hosts: localhost gather_facts: false vars: var1: - name: thing1 color: red - name: thing2 color: blue var2: - name: bob likes: blue - name: alice likes: green tasks: - template: src: json_query is a Jinja filter, so of course you can use it in a templateor anywhere else that Jinja expressions are valid. sls using jinja expressions. The select filter would take another filter. com Created Date: Hi everyone, I'm trying to get a specific partition (or more) from a device (ex. It serves as a wildcard character to indicate “match any character”. Here's the json output of "{{ Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company json_query is a Jinja filter, so of course you can use it in a templateor anywhere else that Jinja expressions are valid. 1. ext. In our case, the two-element list of interface configuration blocks is checked one element at a time and only blocks having attribute “name” matching a regular expression “eth[2-9]” are passed Jinja2 has a few filters that provide this functionality: map, select, reject, selectattr, rejectattr. 0 alpha bravo delta Output Swig (error) v1. To review, open the file in an editor that reveals hidden Unicode characters. 1 """Built-in template filters used with the ``|`` operator. hidden')|rejectattr('attributes Pulling my hair out over this one. name could be something like "employee" or "data". Template globals dictionary Filters in Ansible are from Jinja2, and are used for transforming data inside a template expression. g. comment}} Hello, Basically I would like to filter Twitch entities by “game”. - hosts: localhost gather_facts: no vars: - mylst: - apiVersion: v1 name: customer1 metaData: cycles: 10 ships: 12 env: - name: n1 value: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company How many minutes do you expect every single SO reader to spend on that? – techraf. Additional resources here and here. --- # simple test of When I run ansible --version I see that jinja is in 2. Its ability to filter lists of dictionaries based on specific attributes makes it an invaluable tool when working with There's no magic here. Environment ([options]) ¶. class jinja2. Imagine you have a list of users but you are only interested in a list of usernames: Users on this page: {{ users|map(attribute='username')|join attr format max selectattr upper batch groupby min slice urlencode capitalize indent pprint sort urlize center int random string wordcount default items reject striptags wordwrap dictsort join rejectattr sum xmlattr Jinja2 Cheat Sheet by jprofeta - Cheatography. Would be nice if ca receive a hint how to solve it. Conveniently enough, since Jinja allows you to access elements of a list via both list[0] and list. What I am trying to do looks like : - name: Get size of FS set_fact: tmp_size_ It seems Jinja2 (as supported in Saltstack) doesn't support regex matching, unless I'm missing something? A number of frameworks that leverage Jinja2, such as Ansible have custom support for regex filters. lehlfa lfphh pznzk dotx nijl gjkpf ogswq kmhmj rahadp tdyde