The play - hosts: localhost vars: rtt: [38,1,97] site: ["A","B","C"] tasks: - debug: msg: " { { item.0 }} is { { item.1 }}" loop: " { { site|zip (rtt)|list }}" gives msg: A is 38 msg: B is 1 msg: C is 97 Share Improve this answer Follow answered Oct 14, 2019 at 16:00 1 loop requires a valid list. We read every piece of feedback, and take your input very seriously. Just tested it on the devel version too but still same result. dictionaries, it works with lists/sets. For example, a variable that is lower in the list will override a variable that is higher up. The above assemble module fails. examples weren't valid plays), those work with the original fitler, the I then need to merge them for a final task. Post-apocalyptic automotive fuel for a cold world? Modified 2 years, 9 months ago. Using the jinja2 union filter to combine two lists doesn't work if the two lists contain dictionaries. I'm testing it in vars/main.yml in a role. Which spells benefit most from upcasting? Tags are optional metadata to your instance in the form of key-value pairs. merges lists into synchronized list - Ansible Documentation Note. Viewed 3k times 2 actually I've a problem by compining two lists in Ansible to one new in case of one list could be empty or not. Get an IBM MQ queue for development running on AWS Cloud using Ansible Find centralized, trusted content and collaborate around the technologies you use most. A list of strings. @bcoca Ok, union is meant for lists only, is there a way to union dictionaries? Add a name (and tags) for your new instance. The intent is to add additional recipients to the recipients list in a third dictionary. have to guess at your real usage. Ansible 2 (currently in 2) finally includes a way to do this: the 'combine' filter. Connect and share knowledge within a single location that is structured and easy to search. to your account. Just tested it in a playbook and I also don't manage to make it work: what version of ansible, this works for me in current devel. In most cases, you can use the short plugin name zip even without specifying the collections: keyword. Combine and Merge Lists How? : r/ansible - Reddit union is a ansible jinja2 filter, it was never meant to work with I'll post mine tonight when i get back home.. Why do disk brakes generate "more stopping power" than rim brakes? Combine Lists of Objects in Ansible - DevOps Stack Exchange The easiest way to combine Python lists is to use either list unpacking or the simple + operator. not the same, list1 + list2 does not unique them, I have a PR that will Can someone suggest what module should I use or look at to combine the lists which are lists of lists in the format that can be used to generate and execute the kafka-acl command ? 'value': 'test2'}, {'name': 'item3', 'value': 'test3'}, {'name': 'item4', fix the union and other 'set' filters to work across both unhashable In Ansible parlance facts are variables too. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Can I do a Performance during combat? Environment: OS/X Mavericks. What is the libertarian solution to my setting's magical consequences for overpopulation? Optional parameters 'recursive' and 'list_merge' control the merging of the lists in values. Will give this a look tonight. I need to have one /etc/hosts file with all entries present in both /etc/hosts1 and /etc/hosts2 without duplicate entries. doing set theory on sets is easy, doing it on stuff that is not sets . you actually want a dictionary merge, which is not something python/jinja Issue Type: Bug Report. Loop product to combine more than 3 lists together (with_nested) Synopsis Creates a list with the iterated elements of the supplied lists To clarify with an example, [ 'a', 'b' ] and [ 1, 2 ] turn into [ ('a',1), ('b', 2) ] This is basically the same as the 'zip_longest' filter and Python function Any 'unbalanced' elements will be substituted with 'None' Terms Examples How to filter, join and map lists in Ansible - Tailored Cloud I can define the whole list as a variable: my_list: - 1 - 2 - 3 and then use it in a playbook as something: { {my_list}} But I cannot seem to find how to do this (pseudo code): list_to_append: - 3 - 4 and then in the playbook: How to combine elements of 2 lists in ansible, Ansible - Looping on a list of lists one after another. Asking for help, clarification, or responding to other answers. However, when you try this with lists of dicts, it doesn't work, the list3 variable seems to become a list of string objects and not dict objects: A list of dictionaries that have the items of the two other lists. EDIT: One list is defined in defaults . Use the 'combine' filter to merge hashes in Ansible 2 - toroid.org 588), How terrifying is giving a conference talk? Union of lists of dicts vars doesn't work. I want to make breaking changes to my language, what techniques exist to allow a smooth transition of the ecosystem? If you have two or more lists of dictionaries and want to combine them into a list of merged dictionaries, where the dictionaries are merged by an attribute, you can use the lists_mergeby filter. Not the answer you're looking for? @bcoca It's not a dictionary merge, it's a merge of 2 lists of which the items are dictionaries. 1 Answer Sorted by: 4 There are more options: Convert the dictionary management - set_fact: mgmt: " { { mgmt|d ( {})| combine ( {item.key: {'Property4': item.value}}) }}" loop: " { { management|dict2items }}" If you want to avoid iteration use: a) the filter community.general.dict_kv Ex i have two files /etc/hosts1 and /etc/hosts2. have built in but should not be hard to code. Sign in Ask Question Asked 7 years, 7 months ago Modified 2 years, 10 months ago Viewed 28k times 10 I have a task which uses with_subelements but it's terrible slow for big list (especially that most of the elements has duplicates and I don't need to run it multiple times for them). Ansible - How to combine multiple disparate lists into to use in tasks loop Ask Question Asked 1 year, 11 months ago Modified 1 year, 11 months ago Viewed 3k times 0 I have 3 lists like below users: - " ['user1', 'user2']" permissions: - " [ ['Read'], ['Read', 'Write']]" topics: - " [ ['Topic1', 'Topic2'], ['Topic3', 'Topic4', 'Topic5']]" Introduction In this post, we are going to see how to create a dictionary in ansible during the playbook execution dynamically and how to add items or elements to a dictionary. Pros and cons of semantically-significant capitalization, Help identifying an arcade game from my childhood. You can merge two lists in a variable with + . Would be nice to have it meantioned in the Ansible docs anyway. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Note The output of the examples in this section use the YAML callback plugin. not a list of dicts. 39 is it possible to append a variable list to a static list in ansible? Perhaps stop by ansible-project to ask the "how do I do this" question, vs filing the bug? Ask Question Asked 2 years, 9 months ago. functions which cannot deal with complex data elements. Appreciate any pointers regarding what modules to look at to achieve the outcome. ({{ }}) and/or filters (|), for the first case I also get 'set()', solved Already on GitHub? I've tried the combine filter but as i understood it, it is for dicts and not lists.. Combine two lists in Ansible when one list could be empty Ansible - What's the proper syntax for loop + zip when combining more than two lists? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, Ansible - How to combine multiple disparate lists into to use in tasks loop, Jamstack is evolving toward a composable web (Ep. The two facts are used in different tasks. You can use the jinja2 union filter to combine two lists like this: http://docs.ansible.com/playbooks_variables.html#set-theory-filters. The text was updated successfully, but these errors were encountered: Seems like you should assign this to a variable. How to combine two lists together? Merging lists of dictionaries Ansible Documentation To see all available qualifiers, see our documentation. If no, could I maybe make an attempt to add it and make a pull request? That I want to combine into a structure similar to this, So that I can use it in a task like below. How to merge two lists together: 1 - debug: msg="Append list to list, or merge two lists" 2 3 - name: Setup two lists to be merged 4 set_fact: 5 list_one: 6 - 1 7 - 2 8 - 3 9 list_two: 10 - 4 11 - 5 12 - 6 13 14 - name: Merge the two lists 15 set_fact: 16 lists_merged: " { { list_one + list_two }}" 17 18 - name: Demonstrate merged lists LTspice not converging for modified Cockcroft-Walton circuit, "He works/worked hard so that he will be promoted.". ansible.builtin.combine filter - combine two dictionaries union(list1,list2) I only tested with lists that had dictionaries as Not sure what's in these strings to be honest, Ansible just gave the error: One or more undefined variables: 'str object' has no attribute 'value'. When you're working with Ansible, it's inevitable that you'll deal with lists and dictionaries.After all, they are all part of YAML, which administrators use to create Ansible playbooks.In addition, Ansible uses lists and dictionaries to exchange data within processes and with third parties.. Ansible - Appending to lists and dictionaries - TTL255 To learn more, see our tips on writing great answers. ansible - How to combine two lists together? - Stack Overflow Combine two lists in Ansible when one list could be empty. In many cases, you need to do some complex operation with your variables, while Ansible is not recommended as a data processing/manipulation tool, you can use the existing Jinja2 templating in conjunction with the many added Ansible filters, lookups and tests to do some very complex transformations. This has been discussed many times on the mailing lists and on IRC and on stackoverflow, and implemented in at least five different pull requests submitted to Ansible, and who knows in how many private filter plugins. Ask Question Asked 7 years, 6 months ago Modified 1 year ago Viewed 7k times 2 I have two lists: the_list: - { name: foo } - { name: bar } - { name: baz } and I use a task which gets some value for its every element:
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