Jinja2 filter list of dicts. The select filter would take another filter.

Jinja2 filter list of dicts - debug: msg: "hello world" loop: Reference: jinja Applies a filter on a sequence of objects or looks up an attribute. You are trying to apply it to hostvars which is not a list but a dictionary. Apply map filter to value of dictionary with ansible/jinja2. Dump a list of rows (as dicts, or lists) 2. JMESPath does not have visibility into the jinja2 variables in the same way that the jinja2 filters do, which is why the reference to names doesn't do what you are expecting: JMESPath thinks that is a field on the current-node named names, rather than a reference to that jinja2 variable. Often I find myself with complex data structures in my Ansible playbook (e. Default to empty list if the attribute binaries is missing Ansible Jinja2 Filter - Filter data and create a list from data. 9 (so it's possible you are experiencing behavior they decided was a bug and fixed), but my hypothesis is that the with_items: behavior is re-executing the vars: statement as a side effect of the loop, thus resetting x through every loop, equivalent to: with_items({vars, set_fact}, [{item},{item}]) Make that function available in the global namespace; i. addresses. name}} {% endfor %} {% endfor %} Jinja2 converts integer-like strings to numbers under the hood. Maybe try using equalto as Filter list of dicts by dict key. vars: users: - name: foo database: foodb - name: bar database: bardb secrets: - name: foo password: foopass - name: bar password: barpass I am fairly new to Jinja2 and I have an issue I can't seem to resolve no matter what I try. 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. You can change this behaviour by changing hash_behavior=merge in your ansible. Ansible jinja2 not concatenating to list using with_items. See builtin filters in the official Jinja2 template documentation. Ansible Jinja2 Filter - Filter data and create a list from data. Thanks! 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 Create a filter_plugins/ folder in your playbook folder (I have named the file myfilters. models = {} tree = ET. Instead, you should sort this dictionary before Sure this will return once you've found the value in the list, but if the value is the last in the list then you'll have iterated through the entire list anyways – Alex oladele Commented Nov 9, 2023 at 1:13 The usual way to find just the common elements in a set is to use Python's set class. dict filter – Convert a list of tuples into a dictionary Note This filter plugin is part of the community. Ansible: build a dictionary (which values are lists) from a single list. It took me many diversions over map, filter and even Jinja2 for loops, so I will post the answer here too. Follow answered May 12, 2015 at 4:18 Filter data from list of dicts using condition in Jinja2 filter. I am attempting to loop through a list of dictionaries, using the values of the keys as HTML attributes within the jinja template. AFAIK you can either construct an artificial input structure just to make both of Filter data from list of dicts using condition in Jinja2 filter. Creating list of ip's in ansible using given range within jinja template. 1 """Built-in template filters used with the ``|`` operator. a jinja2. I am iterating through the LIST with a for loop in Jinja, to access each list: {% for list in LIST %}. I tried a list comprehension, and using Jinja's reject filter but I 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 Environment: OS/X Mavericks Summary: Using the jinja2 union filter to combine two lists doesn't work if the two lists contain dictionaries. You're very close to solving it, just need to add another filter: {{ data | selectattr('isweb', 'equalto', true) | map(attribute='app') | list | join(' ') }} Use selectattr to filter a list of dictionaries based on a matching condition. any([person['role'] == 'admin' for person in person_dict_list]) is a lot easier to follow at first glance than the other 2 options. But the template doesn't render any of the data. With Mako I could simply use a small python-code snippet doing this for me In my case I have a list of dicts that contains other several list of dicts. 0 ansible/jinja2 how to get dict from list of merged dicts. 2: 56: July 26, 2024 Looking for a way to use an array to filter a list of dicts, selecting items that match a keys value. # Input data interfaces: - { device: 'spine1', interface: 'GigabitEthernet0/0', ip: '10. You just have to decode that json string to an effective list of dicts with the from_json filter {% for subscriber in subscribers %} {% for dict_item in (subscriber['filter_policy'] | from_json) %} {{dict_item. 66. Like in the docs odd, which will return only the odd elements of the list. The second approach renders characters that will be interpreted as a dictionary by ast. dumps(value)) Note. I fixed the example so it works with your version too (i. How can I filter certain element in a string. I am using the list in a ansible jinja2 template to loop the lines into a config file Ansible list of dicts - accessing keys after a list filter. Ansible bundles a very old version of Jinja2, which simply does not contain the equalto filter. 1 Merge dicts of arbitrary depth in Jinja2. I can also access any specific dict within the list by indexing [n This is: "List of groups the current host is part of. I have written something similar and added it. (Not only is the second approach already more verbose, but it may Source code for jinja2. Filter Jinja list by key existence. Unique Filter of List in Jinja2. Any, name: 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 Jinja2 filters can be a very powerful tool in right hands and I hope that my explanations helped you in seeing their potential. xml') root = tree. I'm looking for a better solution to filter a list of dicts by a key A and return a list of value of key B. How to access each dictionary individually in a list of dictionaries using Jinja2? 1. tag] = [] for c in child: models[child. So I returned to a boilerplate without checks: community. Filtering a dict in Ansible. If rows are expressed as lists of strings instead of dicts, fieldnames In this article, we’ll explore these structures, their usage, and how to render them using Jinja2. elements: - key: first_key value: first_value - key: key_number_2 value: middle_value - key: last_key value: three and I want to Format list of strings using Jinja2 filter with Ansible. items() if k in kwargs} return dic_to_compare == kwargs return func def List of Jinja filters. I tried different tests and filters, but my problem seems to be, to access and check the value. How to process dict list like below, any method using jinja or ansible filter or any other way is welcome From: test_dict: USA: New York: - Alice - Bob Dallas: - James Skip to main content. 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 to work with nested list of dicts for docxtpl jinja2 tags in python. Source: Ansible docs Another way you could do this is to use the default jinja2 filter, so you would not define defaults in role/yourrole/defaults but directly in the template by doing something like (the template file is What you're actually saying with your rejectattr filter is "the value of key. groupby(Dict, key=itemgetter(group_filter)): Key_list. For your case you can use JMESPath to So, the bad news is that I can't replicate your experience locally with ansible 2. name}} {% endfor %} {% endfor %} 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 As a sidenote to @Navaneethan 's answer, Jinja2 is able to do "regular" item selections for the list and the dictionary, given we know the key of the dictionary, or the locations of items in the list. Ansible/Jinja2 - Map nested key in list. View Source. Jinja (salt): multiple if conditions. added the list filter after map). 8. This new entry is then concatenated to the existing list in each iteration. What is a Dictionary of Lists? A dictionary of lists is a data structure where: Use Jinja's map to extract specific values from a list of dictionaries. Viewed 1k times 3 . How to apply dictionary to list of items with Jinja filter? 2. I ended up writing my own, tiny filter. You have correct syntax in general. - hosts: Filter data from list of dicts using condition in Jinja2 filter. How to define list of formated strings in ansible? 1. 5: 104: August 12, 2024 I have a list of dicts with network definitions for an opnsense: networks_test: - descr: UpLink iface: wan vlan_id: '7' - descr: MgmtNet iface: lan vlan_id: '40' - descr: HomeNet iface: opt1 In order to configure my vlans, I need a list of the keys ‘descr’ but only, if there is a ‘vlan_id’ defined in the same dictionary. After reading it, this felt like a perfect opportunity to follow up with some related content. in. Loops and list comprehensions Most programming languages have loops (for, while, and so on) and list comprehensions to do transformations on lists including lists of Using List Comprehension; Using Filter() and Lambda Function; Using Pandas Library; Filter List Of Dictionaries Using List Comprehension. values (Can not be modified): TEST: - foo_a - foo_b - bar_a - bar_b - test_c Template : {% for Jinja2: Custom filter boolean flag. 3. Filter data from list of dicts using condition in Jinja2 filter. You iterate over your list of dicts via with_items. How to extract and build list of dictionary items using jinja2 filter in ansible. task. On this data, I want to apply a filter and collect the list of attributes from the element of lists. How to get rid of special char '(u' 17. Add a comment | Your Answer Reminder: Answers generated by artificial intelligence tools are not allowed on Still if someone can show the use of jinja2 filters for achieving this then that will be much appreciated. general collection (version 10. Commented May 31, However the ansible implementation does address this for representations of lists and dicts. Share. I solved my own problem with help from Rendering a python dict in Jinja2 / Werkzeug The but is there a way to sort the nested dicts using this method? I had been using Commented Apr 14, 2016 at 16:05. But is there any other method instead of using selectattr. I'm new to Jinja2. This is useful when dealing with lists of objects but you are really only interested in a certain value of it. As task variable you prepare the new entry (new_url_item). 9 (so it's possible you are experiencing behavior they decided was a bug and fixed), but my hypothesis is that the with_items: behavior is re-executing the vars: statement as a side effect of the loop, thus resetting x through every loop, equivalent to: with_items({vars, set_fact}, [{item},{item}]) Filters in Ansible are from Jinja2, and are used for transforming data inside a template expression. members: - "{ new_list_created }" Below is the list I wanted to apply Jinja2 filter. native_eval, which is called by NativeTemplate. 71. Follow answered Dec 7, 2018 at 14:22. You will have to use dict2items and items2dict to work around that. In my case I have an array. Ansible filter dict based on key presence and list values. This may be done in the context function or the template; wherever it makes the The idea is to create a list from my task. Given the task: It would seem like json_query is the filter to use, but I can't figure out the syntax. Ansible filter by attribute contains a value. I don't know any way to disable this behaviour in Jinja2. shawlin Create the list of names and test the name is in the list, e. Ansible filter list of dict when dict value is another list. tag) print models Reference: jinja Applies a filter on a sequence of objects or looks up an attribute. env has a key with name n1 I imagine this can be done with a nested loop, but cannot figure out how. Ask Question Asked 9 years, 2 months ago. 0 is the first element of the pair (the key) and 1 is the second 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 You need to convert the fav_colors list back to JSON. Ansible: Is it possible to convert list of primitives to list of dicts using Jinja2 using list/map comprehensions? Given this structure: list: - some_val - some_val_2 Apply map on every element to ob Skip to main content. The first adapts dasmy's rejectattr-from-list-of-tuples approach to use the dict global function rather than the list filter. latest'), I get the list of the actual latest versions: So I end up with two lists of dicts and would like to have the first list be the defaults and merge it with a second list with dicts in the second list Thanks. How can I get 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 Visit the blog For me, the following simple code works and doesn't require the whole chain of jinja filters. Now here's the thing. Maybe my question was clear, I wanted a way to combine 2 dicts in YAML using a J2 filter, the ansible combine one did this. render(). Issue Type: Bug Report Ansible Version: 1. Function: sync _do _map: Applies a filter on a sequence of objects or looks up an attribute. The select filter would take another filter. Stack Overflow. You can write the template filters to do it. general. I have the following list of dicts, where each dict can have a children key with a further list of dicts. Stack Ansible / jinja2 list of dicts of lists. You do need to remember to use them judiciously, if it starts looking unwieldy and doesn't feel Is there any way to use ipaddr to filter a list of objects? Sure! You can use the map function to apply the filter to your list to get a list of (effectively) Filter data from list of dicts using condition in Jinja2 filter. I am passing a LIST of lists of dicts into Jinja2 from Python via Flask (mind the capitalisation). ansible; jinja2; Share. responsible_user. Get items from tests: used to validate data, used with the is Jinja2 operator. builtin. ansible Iterate over list in list. Jinja2: Custom filter boolean flag. 11 It's now possible to configure the :class:~jinja2. a cannot be 'b'", which isn't what you're trying to do. Your filter_policy variable effectively contains a string which happens to be a json representation of a list of dicts. Hot Network Questions So I end up with two lists of dicts and would like to have the first list be the defaults and merge it with a second list with dicts in the second list with matching key names having precedence. Ansible nested variable. . Here are some example usage: If possible, I would move this logic to the python part of the script before rendering it in Jinja. Marc8 Marc8. I've looked into the combine filter, but it only works when I already have an hash to work with. 0. update() as follows:. This works just fine, returning the list of dicts for each iteration: {{ list }}--> [{dict1}, First option: jinja2 built-in template filter "map" <pre>{% if "admin" in person_list_dict|map(attribute="rol") %}SI{% else %}NO{% endif %}</pre> # return SI (john You could split the dictionary ansible_facts. I can change the syntax/structure of the secrets list (into something else if easier). 1. append( From there it will go away and mock up the models, generic views, templates ect with jinja2. Just add all the elements to the set, then convert the set to a list, and bam the duplicates are gone. ). Note that indent is a Jinja2 filter, whereas to_nice_yaml is an Ansible plugin. group_names: [ed_test, test, test_two] Convert the dictionary components to list and test intersect of binaries and group_names. e. Contribute to pallets/jinja development by creating an account on GitHub. Jinja built in map filter can get just one attribute for you, so making a list of dicts into just a list. If no test is specified, the attribute’s value will You need to convert the fav_colors list back to JSON. Dumping fvSubnet_ip out indeed results in [ "114. # Define a list for testing: {%- set some_conf_val = {'val2 The var override is the default ansible behaviour. py. globals. Input: postgres_users: dc1: name: user_dc1 password: pass_dc1 dc2: name: user_dc2 password: pass_dc2 So im trying to create an HTML table using Jinja2 from a list of dictionaries (as returned by a Flask SQL select statement). 1' } - { device: 'spine1', interface: If you for example have a list of dicts or objects that represent persons with gender, first_name and last_name attributes and you want to group all users by genders you can do something To filter a list of dicts you can use the selectattr filter together with the equalto test: network. 21 Check if key exists in a dict in Jinja2 template on ansible. 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 Jinja2 dictsort works on dictionaries (flat) and allows for either sorting by a key or value (that's the meaning of 'value' argument ― it is a switch, Filter list of dicts by dict key. Thanks. yaml this is. mobile etc. sourcecode:: dict2items is another Jinja2 filter that can be used to convert a dictionary to a list of key-value pairs. Jinja2 is treating list of dictionary as string. 9. I'm pretty new to jinja2 and struggle on a simple problem: I get an list of simple dicts to my template: {"task1": true, "task2": false, } I like to render a list of all task-keys, which have false-value. Ansible nested loop and jinja2 filter. I'm still learning jinja2 and flask and I'm having a difficulty using dictsort in jinja2. Ansible jinja filter out elements with attribute not equal to something OR attribute missing. Filtering Dictionary with Nested Lists Embedded. Simply use the list filter to convert to list and then do normal array slicing (note the parantheses): I have a list like. Just create the following file and run via ansible-playbook : The jinja2 selectattr() and map() filters cannot filter a list of dicts where the filtering key begins with a . Filter nested dictionary in Python. Commented Apr 15, 2016 (If I understand correctly jinja dicts are really python dicts under the hood, and python dicts are unordered, so this may be impossible without including code that's messier than the line I'm trying to not have to write. There are specific jinja2 filters for that: selectattr and rejectattr. Follow edited Dec 10, 2021 at 9:12. The selectattr filter is meant for list of dicts. append(c. Get lengths of a list How to extract and build list of dictionary items using jinja2 filter in ansible. How can I recursively merge dicts in Jinja2 without having to define a custom filter? So { a: { b: 'ab', d: 'ad' } } + { a: { b: 'aX', e: 'ae' } } becomes { a: { b: 'aX', d: 'ad', e: 'ae' } } I'm migrating some Mako-templates to Jinja2. 6. As per the documentation: “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. Ansible & Jinja2: Convert two lists into key, value dict. import jinja2 import itertools from operator import itemgetter def custom_jinja_groupby(Dict, Key_list, Val_list, group_filter, parse_filter): temp_array = [] for key, value in itertools. Filtering nested dictionary in Python. ansible - example of merging lists of dicts. Ansible: extract values from nested dictionary object (JSON) 1. 3 Filter data from list of dicts using condition in Jinja2 filter. Jinja nested template inside variable in template. This filter plugin is part of ansible-core and included in all Ansible installations. If it was a string the returned list will be a list of characters. How to apply dictionary to list of items with Jinja filter? 1. 5. disks into two lists, one containing the size and the other one the friendly name, then apply the human_readable filter to the list containing the size with the map filter, then zip the two lists back together. Less obviously, dot notation can be used to look into dicts of dicts. parse('models. Ansible: How to filter dict2items and run playbook only for the Your filter_policy variable effectively contains a string which happens to be a json representation of a list of dicts. 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 Lets say I have a list of dicts like this. Perfect for pulling out IPs, interfaces, or other attributes within your Jinja templates or Ansible playbooks. The basic usage is mapping on an 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 . If you post this as an answer Jinja2 filters can be a very powerful tool in right hands and I hope that my explanations helped you in seeing their potential. I believe a custom jinja2 filter is the correct way to do this. (period) character. combine for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter # Iterating over a list of dictionaries in a Jinja template. I could do this in one line in python. Ansibe Jinja2 Filter. Syntax "if any() / if all() in object" in Jinja. If unintentional, it should be corrected. Environment with :class:~jinja2. Modified 9 years, 2 months ago. py and the filter cstring) Ansible / jinja2 list of dicts of lists. Convert the value into a list. Environment or jinja2. 91 1 1 silver badge 5 5 bronze badges. xyz. Keys must be unique and always have exactly one value. So '1' and '2' are used to refer the first and the second elements of a list. I think. In most cases, you can use the short plugin name combine. Use Dict in Vars with Templates in Ansible. Hot Network Questions The Jinja2 project explains why I must use | list() If this is your answer, how do I know when my expression is a "projection"? Would you say "whenever you use a filter to generate a list-like object?" – sourcejedi. Since you're working directly with the key, it's just a str, and doesn't have any such attribute. phone. poc. Using Jinja to filter by nested dictionary values. 14 Ansible: Check These lists are in each case dicts and must be converted therefore by map again into a list. You do need to remember to use them judiciously, if it starts looking unwieldy and doesn't feel No Jinja2 is in there, filters that are being used and imported and used into the YAML. Now we can use the new filter with Jinja2's dictsort filter. Following is the example input JSON data which list of lists: Built-in template filters used with the | operator. Hot Network Questions How to get font name of current profile in terminal app through the command line Is copper anti-seize good for aluminium? Jinja2 filter list using string contains test. 2. In this example, the below code filters a list of dictionaries (`original_list`) to create a new list (`filtered_list`) containing only dictionaries where the 'age' key is greater than 25 and then prints the Jinja Template dict/list filter "contains" or "like" - Saltstack. This works just fine, returning the list of dicts for each iteration: {{ list }}--> [{dict1}, {dict2}, {dict3}]. 2 Check if all elements from a list are present in another list with Ansible. Please give me advice, how I can do this. – n49o7. cfg file. If this behavior is intentional, it should be documented. 4. Filter list of dictionariers and print value in Ansible/Jinja Filter data from list of dicts using condition in Jinja2 filter. Ask Question Asked 3 years, 11 months ago. – Alex Harvey. Ansible/jinja2: Use filter result in if condition. Get Help. There are basically two options to do this: Filter list of dicts by dict key. But I cannot understand - how I can do this? Because | uses only to filters. I did some more testing and you are correct. I have a list that contains dictionaries of lists that Filter list of dicts by dict key. Is there a way to achieve that using ansible? jinja2; ansible; Ansible / jinja2 list of dicts of lists. Probably the easiest way to do this would be with a quick template filter: @register. Function: sync _do _reject My friend and peer Roberto Nozaki recently wrote How to work with lists and dictionaries in Ansible. Caveat: if dicts in history_list have their keys in a different order, some values will end up in the wrong place. filter def to_json(value): return mark_safe(simplejson. How to sort version numbers in Ansible. Filter list of dictionariers and print value in Ansible/Jinja. It contains a list of so many things I want to filter. Jinja2 ships with many filters. Dicts are rarely used in templates; they are useful in some rare cases such as the xmlattr() filter. Improve this question. 102 How to pass a list from Python, by Jinja2 to JavaScript. append(key) So, the bad news is that I can't replicate your experience locally with ansible 2. Improve this answer. getroot() for child in root: models[child. 7. I cannot seem to get it working at all when I am specifying a list of dictionaries for my YAML variable file. g. I don't want to loop though the list of dns_records but Is it possible to convert a list of lists/dicts to a list of strings using a formatting string in Ansible / Jinja2? I understand I can do something like: {{["First: %d", " Format list of strings using Jinja2 filter with Ansible. filters If you for example have a list of dicts or objects that represent persons with `gender`, `first_name` and `last_name` attributes and you want to group all users by genders you can do something like the following snippet:. For your case you can use JMESPath to I have a list of dicts: vars: sites: - name: "Tampa" site_number: 0 - name: "Miami" site_number: 1 - name: "Daytona" site_number: 2 Jinja2 is treating list of dictionary as string. template: Then you can use map with the first filter to map the list of lists to a list, jinja2. I think |dictsort may not be able to help you in this case because you cannot sort by either key or value, but by the value's (sub-dict's) value for 'totalpts'. If you post this as an answer I will mark it correct as it Filter list of dicts by dict key. 17/28", "1008:125:0:e56::1/64" ] I would like to filter on value that contain or start with 'foo_' and ignore other values in list. Ansible: How to modify a list of dicts. For the host host_one in the inventory hosts. How to apply jinja2 filter to ansible list items? 2. users = ['tom', 'dick', 'harry'] In a Jinja template I'd like to print a list of all users except tom joined. You can also use Python methods to transform data. tag]. To be more concrete - every host has a dict: Here are two approaches. Trying to get a list of all peers to r1. yml No Jinja2 is in there, filters that are being used and imported and used into the YAML. yml called new_list_created and parse that list as a member to. refer – Nava. GitHub Gist: instantly share code, notes, and snippets. I am trying to create a config file for a device using a Jinja2 template and some variable files I have created. Problem solved. I want to extract the names of all customers when any of the dicts in the list mylst. I am struggling to get jinja to access nested lists inside dicts though. It is available in django templates, jinja2 etc. Jinja2 filter list using string contains test. Formatting a list of items in Ansible/Jinja2. To perform your search you'll first need to transform that dict to a list. So I'm passing this dict into a jinja2 template: {'PEDD United @TimurBakeyev this works as the sort filter is applied to data. from random import randint from timeit import timeit list_dicts = [] for _ in range(1000): # number of dicts in the list dict_tmp = {} for i in range(10): # number of keys for each dict dict_tmp[f"key{i}"] = randint(0,50) list_dicts. A very fast and expressive template engine. list of dicts with a list inside that), and I want to do some basic filtering, mapping etc. I have a list of dicts: vars: sites: - name: "Tampa" site_number: 0 - name: " Joining two lists of dicts based on unique key in Jinja2/Ansible using Ansible: Looping over a list of dicts and merging with another dict of lists. Example data yaml:--- conn: - id: asd peers: - name: r1 - name: r2 - id: dsa peers: - name: r1 - name: r3 - id: sad peers: - name: r2 - name: r4 The output should be [r2,r3] as r1 only has r2 and r3 as peers. How to use an OrderedDict Jinja2 variable in my Salt state? 0. 0). For Loop in Django template for nested dictionaries. Universal approach to filter the list of dictionaries based on key-value pairs. Ansible: How to modify a Filter list of dicts by dict key. dumps(value)) Filter list of dicts by dict key. Map nested key in list. The first solution uses only filters available in ansible by default: rejectattr you already mentionned and its counterpart Dump a list of rows (as dicts, or lists) to CSV format fieldnames: Controls which keys in each dict to include in CSV output. # Input data interfaces: - { device: 'spine1', interface: 'GigabitEthernet0 Ended up making my own groupby() custom function and passing it into inja2. Commented Oct 16, 2024 at 7:49. l = [{ 'a': [ { 'b': 4} ] }, { 'a': [ { 'b': 3} ] }] What I would technically like to do would be to sort using the path ['a'][0]['b'] using the sort filter of jinja2. The filter you would like to combine select with is equalto. ansible: how to use selectattr with ipaddr filter. Complex filtering in Ansible/Jinja2. Because, as stated in the Jinja documentation: "Without a doubt you should try to remove as much logic from templates as possible. To iterate over a list of dictionaries in a Jinja template: Pass the list of dictionaries as a variable in the call to ansible - example of merging lists of dicts. How to write correctly jinja2 template using for loop , 1. Yes, that renders it useless unless you want to filter odd elements. But those work on a list of dicts, not on a dict itself. def get_dic_filter_func(**kwargs): """Func to be used for map/filter function, returned func will take dict values from kwargs keys and compare resulted dict with kwargs""" def func(dic): dic_to_compare = {k: v for k, v in dic. Template globals dictionary. Commented Dec 17, 2019 at 3:58. If you're unsure of what You can do it entirely with jinja2 using the zip filter built into ansible. Expec Jinja Tip! Use selectattr to filter a list of dictionaries based on a matching condition. Note that you have to use the list filter in order to count. Filter list of dicts by dict key. acd. Viewed 869 times 2 I have a dict of lists: Filter data from list of dicts using condition in Jinja2 filter. Steps To Reproduce: You can use the jinja2 union fi Within an Ansible vars file, I want to convert a dict of dicts into a list of dicts that I can pass to an external role from Ansible Galaxy. The basic usage is mapping on an The way you're doing this will not work, because as soon as you use {% for team in league %}, you're already using the unsorted dict and extracting the key,value pair from it. I have a use case to filter "waf" IP alone from below yml input (zone: site9. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. If I had this problem, my solution would be to convert each dict into a string that represents the You can use the Ansible-specific filters documented here to manipulate your data, or use any of the standard filters shipped with Jinja2 - see the list of built-in filters in the official Jinja2 template documentation. Load 7 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 the following structure(s) that I need to merge into a single list of dicts. The examples out there all seem to operate on lists of dictionaries, not dictionaries of same For example, if I "pipe" the above dictionary into json_query('*. code_gen. Apply map But I cannot understand - how I can do this? Because | uses only to filters. private_man | selectattr(“type”, “equalto”, “fixed”) The above requires Here are 2 different ways to achieve your requirement. The problem, of course, is that a set() can only contain hashable entries, and a dict is not hashable. ". Modified 3 years, 11 months ago. Thanks! How to apply jinja2 filter to ansible list items? 0. """ 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 I am trying to compose a list from a list of dicts of lists but am failing. Still if someone can show the use of jinja2 filters for achieving this then that will be much appreciated. shawlin. I cannot modify the variable before it's passed to the template. Filter a dictionary based on key. 1. Sort a list in Jinja2 based on length. To get a list combining the elements of other lists use zip Convert nested list of dicts to dict in Ansible. I wish not to upgrade Jinja2. Jinja2 looping over list of dictionary items. ) which is passed as Ansible parameter in my task. More compact syntax than chaining multiple map functions. Here host_var_ is filtered out by match (the beginning of a string). Here is an example of how to use selectattr in combination with dict2items in an Ansible playbook to select all items from a dictionary where the value 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 I have an input data as a list of lists. asked Dec 10, 2021 at 9:05. Jinja2 For Loop over a 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 Thank you Konstantin! That worked fine. ansible: filter one element of the list to string. Now the key can be filtered over the list via selectattr. I cannot use selectattr, because there can be a lot of nested dicts, like contacts. Fixed the typo in the debug as well, the output was genererated with a correct version. Checking value is in a list of dictionary The List of Builtin Filters below describes all the builtin filters. Afterwards the result (list in list) How to get all inventory variables for a group of hosts as a list in template I have a Jinja2 dictionary and I want a single expression that modifies it - either by changing its content, or merging with another dictionary. Environment. If your data items have keys a and b and not 1 and 2, you'd be OK. ChainableUndefined to make the default filter work on nested elements and attributes that may contain undefined values in Jinja2 converts integer-like strings to numbers under the hood. Jinja2 filter nested dictionary based on boolean value. &gt;&gt;&gt; import jinja2 &gt;&gt;&gt; e = jinja2. Optionally, filter objects from the context; for instance, use callable() to skip Jinja's default global helper functions (range, joiner, etc. items() which returns a list of pairs. mfgpdcrf afhtqj pzzhtth jik zazrazi tuz dubc hje yydgd gnwgxmy