Check if dict has key ansible

Check if dict has key ansible. In vars/main. yml, I defined vars as below: Dec 4, 2017 · How to check if an object of a list of dictionaries is present in another list of dictionaries (with Ansible?) You could try jinja filters selectattr - I had an issue with using it, so I did revert to a simplified but ugly solution - build a filtered list and compare filtered attributes only (list-to-list). Jan 11, 2017 · To learn more, see our tips on writing great answers. variable: item. May not apply for this use case, but in a loop one can simply allow the loop to run (or use something like | default([]) ). 100. builtin. Jan 1, 2022 · Get early access and see previews of new features. However, registered variables are only stored in memory. vlan1. # 2. Aug 6, 2021 · I'm losing my mind here but i just cant seem to see where my problem lies! Im trying to have ansible create me users on a Cisco ASA and im using Jinja 2 templates. If the dict is not defined in group vars file Ansible don't need to copy anything. For example, in below data I want to use firstname & secondname group by departmentGroup, so that I get a dict array to be re-used later. For example, the following template format produces the expected result: {% for name, ip in k3s_server_hosts | zip(k3s Jun 2, 2023 · Does the key or value exists in dictionary. Unfortunately, this function cannot be used with map. You can then target these in subsequent plays like this: gather_facts: false. Ansible: How to check if dictionary has at least one specified value? 0. dest: /path/to/animals. However, if there is way to combine into Ansible template loop k3s_server_hosts and k3s_server_ips facts, this will be a satisfactory outcome also. gather_facts: true. I do not like it, but it works. cfg file and set : hash_behaviour=merge. 102 hot-03: Jan 15, 2024 · server boreas 192. Hot Network Questions Oct 14, 2016 · 11. Jan 7, 2015 · 21. value} ) }}" with_items: Apr 28, 2022 · To learn more, see our tips on writing great answers. when: files_to_copy_from_nexus is defined and files_to_copy_from_nexus. From that point, it was just a matter of writing the updated vars structure to a . it will evaluate to empty dict but the task will be skipped by when. Feb 6, 2019 · Ansible check if key/value pair exists in list of dictionaries. hostlist: - { name: 'host1', ip_addr: '192. foo) This solution works best for me because I use typescript, and using strings like so 'foo' in obj or obj. I tried doing the following : DEPLOY_URLS: "dev": "xyz". pear: yellow. grapefruit: yellow. - item3. Despite that, we recommend you use the FQCN for easy linking to the module documentation and to avoid conflicting with other collections that may have the same Aug 2, 2019 · Hello i am trying to find a string as a part of a key in a dictionary. algorithm and provider_id. How to sort dict by value. vars: my_list: - item1. Feb 10, 2021 · I have a problem with checking existing files using a dictonary in Ansible. Let’s take a look at how dictionary indexing works. keys(): print "blah" else: print "boo" I think this is no Ansible 2 now has a feature to complain when keys have been defined multiple times in a task. Ansible 2. key Mar 30, 2016 · 1 Answer. Jul 30, 2016 · which looks like you are trying to do exactly what I have described here. 0. property See zweiterlinde's answer below, who offers good advice about asking forgiveness! A very pythonic approach! The general practice in python is that, if the property is likely to be there most of the time, simply call it and either let the exception propagate, or trap it with a try/except block. 32', hostgrp: 'physical_workstation' } Sep 27, 2023 · When the playbook is run, the my_dict dictionary will be created and its values will be displayed using the debug module, allowing you to verify that the dictionary has been created successfully with the given key-value pairs. # 3. For this, the community. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. By default, you can also access some Ansible facts as top-level variables with the ansible_ prefix. - item2. keys() }}" Apr 26, 2015 · (Related to Callbacks or hooks, and reusable series of tasks, in Ansible roles): Is there any better way to append to a list or add a key to a dictionary in Ansible than (ab)using a jina2 template Mar 17, 2020 · But when checking a list, we need to be sure that is not mapping, not a string and iterable: - name: Assert if list. How do I do a lookup to check if a certain name exists in key 'firstname'? May 23, 2024 · Takes a dictionary and transforms it into a list of dictionaries, with each having a key and value keys that correspond to the keys and values of the original. dict filter can be used: - name: Create a dictionary with the dict function debug: msg: "{{ dict([[1, 2], ['a', 'b']]) }}" - name: Create a Jan 13, 2017 · Here is my problem I need to get a dict value from key. Aug 21, 2014 · In your ansible config file turn hash merging on. Asked 2 years, 5 months ago. assert: that: >. If dict2items requires a dictionary, let's feed it with a dictionary. : {% if 'vlan1' in interfaces %} {{ interfaces. Referencing dictionary Nov 24, 2015 · It's not pretty if you need to use the variables for multiple tasks, but in ansible 1. json. key Feb 17, 2022 · tasks: - name: Display the Dictionary. Jan 1, 2022 · Ansible Map Examples. 168. To see the values for a particular task, run your playbook with -v. Ansible filter dict based on key presence and list values. Not sure if i understand why because this option says to use all the prompts and answers in order, which is fine, but when false i read it as if it grabs the prompt it sees and gives the answer. Despite that, we recommend you use the FQCN for easy linking to the module documentation Nov 29, 2020 · If all you want to do is printing the dictionary items, you can do: - debug: msg="{{ item }}" with_items: "{{ dict_var | dict2items }}" THank you for your message :) Basically, print is the first step. May 23, 2024 · The private key as an ASCII string. stdout==1 in the last when clause. I wrote the following code: if 'key1' in dict. Feb 15, 2019 · This may be because you use python3 but want to iterate your dict with iteritems () instead of items () or your variable is not a dict but a different type. To use it in a playbook, specify: community. I have a host vars file where i am specifying the users (sensitised data): Mar 2, 2022 · This requires that you've gathered facts on all the hosts in your inventory; otherwise, facts like ansible_fqdn won't be available. - name: set fact. with_dict is evaluated always. With Ansible, you can execute tasks and playbooks on multiple different systems with a single command. Learn more about Labs. In most cases, you can use the short plugin name dict even without specifying the collections: keyword. Sorted by: 8. Registered variables are similar to facts, with a few key differences. May 23, 2024 · To check whether it is installed, run ansible-galaxy collection list. 20. If the list is empty nothing will happen. j2. yml which should include the tasks for copying the files in case of dict existing or not: - include: copy-lists-for-docker-container. In order for the two vars to be merged you will need to include both var files: And you will end up with this: "values": {. yml: my_key: my_value. " There are many options: Include the variable from the file to a dictionary, e. Scenario - Assert Check two string keywords or multiple test conditions; Scenario - Run Task when variable is undefined Jul 1, 2021 · Check for Value for a Key in Dict within Ansible. Sign up or log in. And this is my main. vlan2. template: src: animals. Also, you don't need Jinja templating markers in a when expression (the expression is already evaluated as a jinja expression): name: "{{ item. server cerus 192. Using last defined value only. 0 has blocks, with which you would be able to loop multiple tasks together over a dict, and you would be able to define variables for all tasks in that block to use. I guess this is a real dividing setting between users. In most cases, you can use the short module name dict even without specifying the collections: keyword. stat: path: &quot;{{ agpm_runner_base_dir }}/{{ item. json_query filter lets you query a complex JSON structure and iterate over it using a loop structure. On occasion, the data you're working with is actually a list of dictionaries. Below is my variable list. May 31, 2019 · I'm trying to fetch the values from list of dict but unable to get the exact output, which is required Jan 7, 2015 · I know what ansible has for the var. The community. - hosts: localhost. tasks: . Oct 13, 2015 · By default, Ansible overrides variables at the first level. dict for easy linking to the plugin Nov 1, 2022 · How to work with lists and dictionaries in Ansible | Enable Sysadmin. Apr 20, 2021 · I try to assign by &quot;set_fact&quot; the value the key corresponding to element in the list of value ex: variable_ansible: key1: value1 key2: - value2-1 - value2- Mar 30, 2019 · I'm getting different results when using loop vs with_items when trying to iterate over a list of dictionaries. Mar 28, 2023 · When you're working with Ansible, you typically work with lists and dictionaries. Check if dictionary key exists (or does not), also in nested key; Check if dictionary value exists (or does not) Example Scenarios. Ansible Map Extract Example. Equivalent of using list[index] and dictionary[key] but useful as a filter to combine with map. In most cases, you can use the short plugin name dict . User must ensure that index or key used matches the type of container. dict – returns key/value pair items from dictionaries. edited Mar 30, 2016 at 16:45. May 23, 2024 · Takes a list of dicts with each having a key and value keys, and transforms the list into a dictionary, effectively as the reverse of dict2items. j2: ---. What's happening, I think, is that when you're not on CentOS or Redhat, result is not set at all (or it still has a value from a previous thing - I would suggest using more meaningful variable names for that reason) – Sep 12, 2021 · I am trying to update a dict in a hostvar, and the name of the key is constructed using a variable (node). Jun 19, 2017 · debug: var=animals. 2. Jul 22, 2022 · Put the checks for the value of ansible_distribution before the check for result. d1, and display the first value. vars: parent: child1: true tasks: - name: "Check if variable is defined". If you want to use it with when, try this: with_dict: mysql_additional_users | default ( {}) when: mysql_additional_users is defined. list_of_dictionaries. Ask Question Sort nested ansible dictionary by key. ip |default(interfaces. To install it, use: ansible-galaxy collection install community. 3:6443 check. The conditional check dict object' has no attribute ansible Ansible facts are data related to your remote systems, including operating systems, IP addresses, attached filesystems, and more. general . If you want to be able to merge dictionaries, you have to change your ansible. . Learn how to analyze and use data in lists and dictionaries, a crucial skill for anything you want to do with Ansible. keys()|length > 0. If you need to convert a list of key-value pairs to a dictionary, you can use the dict function. tasks: - name: print phone details. Jun 24, 2021 · Update. You need to quote the word any, because otherwise it is interpreted as a variable reference. Loop dictionary in ansible template. 101 hot-02: 10. Let’s see an example. Another good option is: This is not the exact same code. Feb 25, 2020 · I added: check_all: True as read in the module examples and then this example works. shell> cat something. Its syntax is as follows: <list of dictionaries> | selectattr('<attribute>', '<operator>', '<value>') Key. The whole issue is I don't know how to make it resolve any kind of keys in dictionaries as variables, regardless of where I create the dictionary. May 23, 2024 · Synopsis Extract a value from a list or dictionary based on an index/key. Modified 2 years, 5 months ago. Mar 17, 2020 · But when checking a list, we need to be sure that is not mapping, not a string and iterable: - name: Assert if list. I have a variable called DEPLOY_URL. yml, line 42, column 3, found a duplicate dict key (name). Description. fruits4: apple: red. if the substring found in the target_servers list (from the users dict) matches, then we provision the user; additionally, off course, if the list provides the entire hostname, it should match and the Nov 23, 2018 · I want to pass variables to my ansible playbook by --extra-vars, and the type of variables is a list of dict like this: Ansible string to dict - Learn how to convert a string to a dictionary in Ansible with examples. Here’s an example of how you can use the in keyword to check if an element is in a list in a playbook: hosts: localhost. Ansible with_dict expects a dict Feb 14, 2021 · items2dict can be used to select 2 attributes only ( key_name and value_name) e. Please note that the module cannot detect whether the private key specified differs from the current state’s private key. key }}/config. Feb 15, 2023 · Get early access and see previews of new features. Each item in the list is a list of key/value pairs, commonly called a “hash” or a “dictionary”. # Now we can use host facts in our templates. 12 and later. My specific use case is using this with the ec2 module, where some of my tag names are Oct 13, 2015 · By default, Ansible overrides variables at the first level. debug: var=mydict2. Sep 2, 2021 · Check if key exists in a dict in Jinja2 template on ansible. But the key is also a var. gather_facts: no. Which undefined and null fall under. (Ansible facts are backed by whatever cache plugin you have configured. If what you actually want to do is iterate over the keys of the mysql_dbs dictionary, remember that it is simply a Python dictionary and you have available all the standard dictionary methods, so: - debug: msg: "key: {{ item }}" with_items: "{{ mysql_dbs. For example, if 'node' is 1 then I want to update hostvars['fakehost']['mydict']['localaddress1']. Mar 5, 2015 · jinja2 has filter '|default ()' to works with undefined variables. I want to extract the names of all customers when any of the dicts in the list mylst. Sign up or How to find in an ansible (yaml) dictionary a key from his value? 0. So, we need to know how to write lists and dictionaries in YAML. - set_fact: fruits4: "{{ fruits|items2dict(key_name='fruit', value_name='color') }}" gives. Later, I would like to use them and for example build another variable using the values. key }}" when: "item. Jun 26, 2019 · Let’s say you want to remove from your dictionary (object) all elements with value of empty string. You can also create a dictionary within the task itself and define some variable as a dictionary by default, the default value kicks in when there was no previous declaration for the same variable. yml. Related. Create a dictionary using the default filter in Ansible. key != 'any'". Ansible uses variables to manage differences between systems. Sign up using Google Iterate dict Ansible, each key multiple values. json_query filter. May 27, 2022 · Ansible’s approach to configuration – separating variables from tasks, keeping your playbooks from turning into arbitrary code with nested conditionals - results in more streamlined and auditable configuration rules because there are fewer decision points to track. Oct 29, 2015 · The best way to check if a key exists in a dictionary (in any Jinja2 context, not just with Ansible) is to use the in operator, e. 0. e. (file list) In the next step i have to loop over a list of strings and search for it in a dictionary. Contents of the key must match config. What's happening, I think, is that when you're not on CentOS or Redhat, result is not set at all (or it still has a value from a previous thing - I would suggest using more meaningful variable names for that reason) – Sep 22, 2020 · Takes dictionaries as input and returns a list with each item in the list being a dictionary with ‘key’ and ‘value’ as keys to the previous dictionary’s structure. Bellow an example of my data vars: nginx_users: 'instance1': roles: - product - Oct 30, 2018 · 1. fail: msg: "mandatory variable {{ item }} not passed as extra args when invoking playbook". Nov 12, 2021 · If you have a complex JSON data structure or perhaps an array of rich data structures as the result of module output, you may want to extract this into a workable list or dictionary you can take action on. Below is my code. With hash_behaviour=merge you can have two var files with the same variable name: defaults. dict_kv . Like facts, registered variables are host-level variables. Jan 8, 2016 · I want to use this output (from a previous command) as an array of key-values or as an inventory for the next command in the same playbook stdout: hot-01: 10. Then, inside the template animals. debug: msg="user {{ item. hosts: localhost. Playing ansible task in case of a dict is existing or not. In Ansible, if I try to use a variable as a parameter name, or a key name, it is never resolved. Jun 6, 2022 · And then I need to check if the dictionary defined and assign a variable from one of this dictionary's keys: - name: Fetch the parameter from the dictionary or set the default value set_fact: my_var: >- (my_dictionary != None) | ternary( {{ my_dictionary. Here's the scenario: Objective (s): Have a conditional that checks if a target_server list element content matches the ansible_hostname (i. Another good option is: Mar 30, 2023 · Say I need to execute an Ansible task only when some dictionary contains at least one false value?. May 23, 2024 · To select a single element or a data subset from a complex data structure in JSON format (for example, Ansible facts), use the community. (the default value being replace ). We’ll use dictionary indexing to get the value for the key Nik from our dictionary ages: >>> ages = { 'Matt': 30, 'Katie': 29, 'Nik': 31, 'Jack': 43, 'Alison': 32 May 23, 2024 · New in version 2. YAML Basics For Ansible, nearly every YAML file starts with a list. It's just got the unresolved variable. My aim is to group the data by a field within the dictionary. ) 该查找插件是 ansible-core 的一部分，并包含在所有 Ansible 安装中。在大多数情况下，即使不指定 collections: 关键字，您也可以使用短插件名称 dict 。但是，我们建议您使用 FQCN 以便轻松链接到插件文档，并避免与可能具有相同查找插件名称的其他集合发生冲突。 Aug 4, 2023 · Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand May 23, 2018 · As the number of variables can grow in size, I'd rather prefer to pass the dictionary of variables to the task using vars. A list (desired result) can't be created by items2dict. 4:6443 check. This is a common task when working with Ansible playbooks, and this guide will show you how to do it quickly and easily. {"a": "b"} Q: "Get the value from a dict using a filter. general. For example, if I have {{ some_var }}: true, or: template: "{{ resolve_me_to_src }}": "some_src". 2. yml: key: value. It still works, but creates unwanted noise when running the playbook: [WARNING]: While constructing a mapping from /some/file. 31', hostgrp: 'physical_workstation' } - { name: 'host2', ip_addr: '192. - name: Test if config file exists ansible. items2dict returns a dictionary. I'm not able to loop a list in a dict and keep the key of the original dict. x I don't think there's a way to make it pretty. 4. Read CSV into dictionary. EXAMPLE: vars: dict_fonts_installed: { font1: true, font2: true, font3: false } tasks: - name: 'Run fc-cache only if at least one of the fonts isn't installed' command: "fc-cache -f {{ fonts_dir }}" when: <YOUR ANSWER> This is not the exact same code. You may want to handle missing values more gracefully: For example: # in our inventory. Note that the Ansible team does not recommend this . Below is the input dict created from csv Apr 22, 2024 · In Ansible, you can check if an element is present in a list using the in keyword in a playbook or in a Jinja2 template. hasOwnProperty('foo') to check whether a key exists or not does not provide me with You may also wish to read Working with playbooks at the same time to see how this is used in practice. when: item not in vars. dict lookup – returns key/value pair items from dictionaries. Update the list in a pipe instead. This lookup plugin is part of ansible-core and included in all Ansible installations. This is where Jinja filtering comes in handy. Sep 11, 2020 · I have a dictionary with a list of dictionaries. Would it be possible to loop and have key pair values May 2, 2013 · I wanted to test if a key exists in a dictionary before updating the value for the key. Dec 8, 2022 · I want to put a list of names and descriptions into a CSV, and then for each host in hostvars, pull out the corresponding descriptions in the CSV. You'd rather do : gather_facts: no. g. For each host in the playbook, print the UID of the name of the host. You can disable this behavior using the INJECT_FACTS_AS_VARS Mar 1, 2020 · Get early access and see previews of new features. In your case, you have two dicts but with just one key ( alice, or telephone) with respective values of "Alice", 123. 1. Use force=true to force the module to update the private key if you expect it to be updated. Creating a Dictionary in Ansible using the default function. Viewed 3k times. Dec 10, 2021 · Ansible check if value exists in dictionary list. Posted: November 1, 2022 | | Roberto Nozaki (Sudoer, Red Hat) Image by Benjamin Hartwich on Pexels. Based on the value of the env variable, the DEPLOY_URL has to change. my_key }}, 'my_default_value' ) Wrong move! Takes dictionaries as input and returns a list with each item in the list being a dictionary with ‘key’ and ‘value’ as keys to the previous dictionary’s structure. overrides. Boolean(obj. # 1. However, we recommend you use the FQCN for easy linking to the plugin documentation Dec 25, 2020 · I've a CSV which I converted into a dict using read_csv module. If you look carefully at the example, you'll see that under users, you have several dicts. It's not necessary to iterate the list in Ansible 2. I have constructed a dictionary of variables like below. ansible. Using Variables. Sep 28, 2021 · Indexing a dictionary is an easy way of getting a dictionary key’s value – if the given key exists in the dictionary. How to use Ansible Map filter to lookup attributes and to apply filters on list or dictionary with examples. Jun 8, 2020 · key: "role_{{ 'master' if is_master else 'secondary' }}" After this play completes, you will have a group named role_master that contains the master node, and a group named role_secondary that contains the secondary nodes. This module is part of ansible-base and included in all Ansible installations. Or, if you have the rest of your playbook that really does want them to be numbers, you can make num actually be a number in two ways: ansible -e '{"num": 1}' to cause ansible to parse --extra-vars as JSON, where "num" really will be a Number (in the JSON sense) Dec 25, 2022 · Given the file below. “How to filter a dictionary in Ansible” is published by George Shuklin in OpsOps. You can access this data in the ansible_facts variable. env has a key with name n1 I imagine this can be done with a nested loo Jul 8, 2009 · While this doesn't necessarily check if a key exists, it does check for the truthiness of a value. " A: I read your question: "Get the value from a hash without knowing the key. Apr 23, 2023 · selectattr is a filter plugin in Ansible that allows you to select a subset of elements from a list of dictionaries based on the value of a particular attribute. answered Mar 30, 2016 at 14:37. if hasattr(a, 'property'): a. But it does not work with dictionary values. My requirements are these: a deployment environment is passed into the playbook as extra vars, for ex : dev, qa or prod. To represent the variations among those different systems, you can create variables with standard YAML syntax, including lists and dictionaries. The expressions below give the same result Try hasattr():. 3. yml file, which is as easy as: - name: Write the updated animals dict to a YAML file. ip) }}; {% endif %} May 23, 2024 · ansible. Mar 2, 2022 · This requires that you've gathered facts on all the hosts in your inventory; otherwise, facts like ansible_fqdn won't be available. Mar 28, 2022 · 1. Jan 11, 2021 · it works correctly if the id selected has the key but if it hasn't then I get the following error: Dec 16, 2019 · But I'm not able to access nested data structure from variables in the when statement. Here is a minimal sample to demonstrate the issue. the variables will just be used literally and never resolve. Dec 5, 2019 · Below is a contrived example of my data. For example, I had an ansible role. tasks: - set_fact: variables: "{{ variables|default({}) | combine( {item. ( mylist is defined ) and ( mylist is not mapping ) and ( mylist is iterable ) and ( mylist is not string ) If you test with string, boolean or numeric, the assertion will be false. Ansible - set fact for key of dict based on sub-key Nov 14, 2018 · If you quote those config keys, they will become strings: config: "0": a: true. fn mr hf ex vr pm ca cu za kh