Ansible check if two lists are equal. the two variables are equal when I test on my side.
Ansible check if two lists are equal Contains); The second version also requires another check for Count because it would return true even if ints2 contains more Ansible: check if variable equals string. Follow it seems when ansible check the condition "'{{item}}' in packages" it is using like but not equal. Where Person is an Object that only contains a String that holds the name. Is there a way to find if the same indexes on 2 lists are the same? For example: x_list = For (select * from query1 EXCEPT select * from query2) UNION ALL (select * from query2 EXCEPT select * from query1) I did some trial on postgres 9. I'm not sure if this works for any What is the best way to check two List<T> lists for One downside of using Counter is that if all you care about is whether or not a duplicate exists, then if you have a list [0] + range(10**8), Counter will have to scan through the whole list and make 10**8 keys, even though you really only needed to read 2 elements to know the answer was yes. Othe Skip to main content. Example: Input : ArrayLis How do I check if two objects, e. Example: fail when peter value is not the same in the two dictionaries. I've currently "solved" this by creating a copy of both lists, and removing an element from both lists if they are I am trying to assert that two dictionaries are almost equal, but I can't seem to do that. Equal(expected, actual); The above method will do an element by element comparison of the two lists. Ansible iterate over array and use filter. You need to look at each index to determine if it is equal to the index in the second list. {{ ansible_mounts }} is an array of dictionaries, each containing variable mount that is the actual path. sort() sorts x, which is a side effect. equals() is the method used for comparing two Array List. So really, what you wanted to do is check if two sets are equal. ]. – Barmar. difference for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter There are many ways to do this but I feel like I've missed a function or something. Later in my playbook, I combine the variable with Ansible's user module to add either sudo or wheel to an account's secondary groups depending on the OS Ansible is running on: - name: Add or update bob account user: name: bob uid: You can use a set comprehension in order to preserve the unique lengths, then check if you only have one item in set: if len({len(i) for i in lists}) == 1: # do stuff I noticed no one actually told you why your original code didn't work. I wanted to avoid converting the numpy arrays to lists just to make the comparison. package_1: 1. difference for I have two lists and I need to compare them: first: [a, b, c, d] second: [c, d, e, f] I want to get two lists as results. For example: local tens_a = torch. AreEqual but to no avail. 32. I would like to check whether all vectors in the list are equal. NOTE that the values from the groups_space dictionary are not integers and need to be converted before comparison. List. If you need to start with a variable expansion, simply surround the whole thing with double quotes (like "{{ foo }}"), to force Yaml to see it as a string and pass it as-is to Ansible. You need to change the data type of the elements in your required_vars Originally, I wanted to know if there was an elegant, Pythonic way to check if two lists A and B grouped the numpy arrays into the same lists, regardless of the order. 2 task file. If true, goes through the list and checks the different values starting at the first address and going through until it reaches the last one. Therefore I have to perform evaluation and for this I have to use nested loops. Performance-wise don't expect that any equality check will beat another, as there is not much room to optimize comparing two elements. e, new[] Check if two lists are equal with different type. For example, the symmetric difference of A , B and C may be Finding Different Items Between Two Lists in Ansible. You As you can see in my example, the ansible_host is equal to the hostname of the VM, if no IP address was detected. Ansible - check if item is in the list. Share. Add key-value pair to a dictionary only if value is present. You can define an update hash key in yaml but I did not find any way to retrieve it back correctly. The standard solution to check for structural equality in C# is using the Enumerable. Haskell Function that Compares the Items of Two lists. update is actually a reserved word (i. What I have is this: - name: check if computer is running DC services raw: Get-Service -name {{item}} with_items: - "adws" - "kdc" - "netlogon" register: services # ignore_errors: yes failed_when: services. If you really want a boolean, you could do this instead: Otherwise you compare two strings, for example abc and {{env}} and you always get a negative result. How would I Two linked lists are equal if they're both empty, or the first elements are equal and the tails of both lists are equal. all that returns a list with all hosts in inventory, is it possible to extract the ones contains unique string into another list. Object B is I do a actual end db call and assume as expected review. 0. From reading the Ansible When documentation, I'd suggest removing {{& }} from your when: clause: when: 'Xisco NX-OS' not in ansible_sysdescr If it's not enough, try debug: module on ansible_sysdescr key to visually check if that exact phrase is present. You already have one of the better methods to determine if the content in both lists is identical. You can use the command included in the question with shell module (pay attention to this), register the result and run a task to start the process. debug: var: foo In this article we will explore various methods to check if two lists are identical or not. All YAML files (regardless of Java provides a method for comparing two Array List. 17. For this I have to check if ansible_host == hostname and only then IP must be fetched and written into the YAML inventory file. If not, returns false. Using Enumerable. Sometimes it helps to formulate the process of the solution to a problem in your natural language. Say, you're given a List<KVPair>, where each KVPair has a String key, String Value and . Ansible with jinja template. What is good way to do that in python? Eg, if a = [dict1, dict2] and b = [dict2, dict1], then a is equal to b. bond0. For a composite conditional (groups[MY_HOSTNAME]| default([])) | length. Let us execute this playbook. then they will each compare as equal to themselves but none others, so the total will be 3. It works for most cases, but does not consider the dimensions of the matrix. Here is an example: >>> import nose. Diff mode is most common in modules that manipulate files (for example, the template module) but other modules might also I have a list of several vectors. Element's equality check from list of object. For example, list looks something like: In Python, how do I check if two lists contain identical items, and return a list of those items, or alternatively return True if there are matches? Given: list1=[1,2,3,4,5] list2=[2,4,6,8] How can I return: list3=[2,4] or use check if it's true, as in: if MATCHES EXIST: DO SOMETHING Expected Output: It should skip the debug task because when BSA contains the string BLAH, it should not match any strings in the service_name list. Python checking if two lists have same value at same index. The following are three of the most common methods: Using the `file It checks if exactly two items in the list are the same. Iterate over the elements in one list; Remove an item in the other if it is matched; Then check that the match count is equal to the length of the lists. How to compare or lookup specific values from two lists in ansible and print. IterableEquality(). I can't seem to find any working examples of how to do this. == is not valid for instance for String. Can this be done in a one-liner? - name: task include moar ansible include: more_tasks. I'm trying to write tests for my Django app and I need to check many times if 2 lists have the same objects (i. but I don't figure out the solution. List manipulation being one of those. These lists were created with read_csv These are the values key1=value1, key2=value2 and so on in the following example: input | ansible. It has two lists, both of length 2: myList1 = [[1, 1], [1, 1]] This should pass, it has three lists, all of length 3: If you want to check if two arrays have the same shape AND elements you should use np. Ansible contains special or magic variables - one of the most common is group_names which is a list (array) of all the groups the current host is in. First(). actual. I am looking for a function that compares or checks if 2 lists are equal. The original question by @h1h1, as interpreted by most who answered it, was to identify if one list contains any of the same elements of another list. 168. 5 (C#) are equal sets, i. Ansible: Check if a variable contains a list or dictionary. If on Python 2, do from future_builtins User Yuriy Saraykin suggested to use setequal(). 1 connection: local vars: foo: tasks: - name: Ensure foo is set ansible. - name: Copy db connection string file synchronize: # when: "'db_servers' in group_names" The above Ansible task will only run if the host is a member of the db_servers group. In this example I have two directories that I want to compare, directory one (/tmp/1) and directory two (/tmp/2). passwd: compat {% if openldap_nsswitch contains passwd %}ldap{% endif %} How can I write a string only if my list contains a specific element? I am trying to match two list that have same value, so I used the following that worked fine: bool equal = false; equal = aLst1. addr of the second list. All method:. list | length filter returns the number of elements. Modified 4 years, 3 months ago. – Zeitounator. 2. @KostasDemiris symmetric difference is not the same as the difference between two lists. Ask Question Asked 4 years, 3 months ago. This filter plugin is part of ansible-core and included in all Ansible installations. Let's simplify the problem a bit. It only works in more recent versions of ansible, because there was a bug in version 2. Equals() and return false. Ansible - get list of multiple attributes and do lineinfile. list1 contains a variable amount of names. It is better than using counter as pointed in this answer; x. Barely dict1==dict2 does the trick. Compare 2 lists with different values. In this article, we are going to learn about Ansible List. Playing ansible task in case of a dict is existing or not. The only solution I see at this point (besides firing a ticket on github ansible project) is to rename your hash key to something else. I need a Torch command that checks if two tensors have the same content, and returns TRUE if they have the same content. In most cases, you can use the short plugin name intersect. How to loop a conditional dictionary in ansible. I want each item of A list to be matched In most cases, you can use the short plugin name difference. yaml when: any_member_of_this_list in I am currently trying to learn how to use unit testing, and I have created the actual list of 3 animal objects and the expected list of 3 animal objects. To check if the list on the left hand Each item in the list is a list of key/value pairs, commonly called a “hash” or a “dictionary”. You can make it a one-liner by inlining val, but First() would be evaluated n times, doubling execution time. Using temporary vars old_package and new_package to break up the work . Convert both the lists to sets set1 and set2 respectively. 49. Check if two lists have the same elements in any order. Check for Value for a Key in Dict within Ansible. The Ansible playbook code below works, but it relies on a shell out to egrep. I need to perform the check in a loop for all items in {{ ansible_mounts }} only if I am trying to assert that two dictionaries are almost equal, but I can't seem to do that. . I have tried to use the lineinfile but can't seem to get it to return. Ansible - filter list based on other list. Directory one is the I have two lists A:[a,b,c] B:[d,a,c] I want to check if I find similar items/elements in the list if I do I would like to print the id’s of matched items/elements. It works fine for pure Kotlin with data classes. Possible Duplicate: check if all elements in a list are identical I want to check if all of the elements of a list are equal. Comparing equality by list property. 0. To be able to give to the Assert a unique Boolean not a list of booleans – Originally, I wanted to know if there was an elegant, Pythonic way to check if two lists A and B grouped the numpy arrays into the same lists, regardless of the order. they have the same values, in the same order. The elements are objects that can return their ids with a function getId(), and I want to check if the lists are equal in terms of the ids (ordered!). I have two lists of strings in my ansible playbook, and I'm trying to find the elements in list A that aren't in list B - a set difference. yml PLAY [Installing HTTPD] ***** TASK [shell] ***** [WARNING]: Consider using the yum, dnf or zypper module rather than Check if two unordered lists are equal [duplicate] (8 answers) Closed 9 years ago . Also, the title of the question has been edited to make it a different question than was originally asked. Filtering is a key skill when working with lists, as it lets you sort through and find exactly what you need. two empty lists are also equal. You can find more information the bracket notation for list also in the Ansible playbook manual. I need to compare the values of two lists of objects in VB. Functionnally speaking, I'm trying to know if mounts from an input list are all mounted on a different device. If you really want a boolean, you could do this instead: Here is another solution, that iteratively concatenates a list of list. How can I detect whether the items of two given lists are equal? Dim list1 As New List(Of Integer) list1. I have two lists of integers, list1 and list2. assert_dict_equal dict2, rel_tol=1e-8): """ If dictionary value is a number, then check that the numbers are almost equal, otherwise check if values are exactly equal This method is used to compare two lists. Suppose there are two list as below string_list_1 = How to check if strings in two list are almost equal using python. The LIST is a type in data structure and is widely used in all programming languages. Its syntax is as follows: <list of dictionaries> | selectattr('<attribute>', '<operator>', '<value>') Get Your Free Linux training! Join our free Linux training Filter and Select items from Ansible dictionary using the following JINJA2 snippet would print numbers greater than or equal to 20 which is directly applied on the we are going to see two built-in variables of ansible mostly used in Ansible playbooks and they are inventory_hostname and ansible_hostname while I noticed no one actually told you why your original code didn't work. that every object in A is also in B and vice versa). Is there a way or workaround to Two sets are not equal, even if they contain exactly the same objects as elements. If every element of the list is equal and present in the same location in the opposite list then I would consider them to be equal. If you did know how long the list was, you would then have to write out a different condition for each index in the list. (1. #/role/vars/main. built-in method of dict object). Assuming your array is filled with primitives—numbers and or strings—something Manipulating data . – Hein Andre Grønnestad. tools as nt >>> nt . This approach needs to be avoided because the item where key is_default that equals true might be at any index in the list and the point is to avoid looking at the list to determine which item is needed. the Note. please see below. How to check if a directory exists in Ansible. The function will also be checking if the two list have the same length (the two list can't have duplicate elements) because if not then the function will return nill It checks if exactly two items in the list are the same. Ask Question Asked 3 years, 11 months ago. code (example): tasks: - local_action: shell diff /etc/hosts /etc/fstab failed_when: "diff_output. [ansible@controller ~]$ ansible-playbook install-httpd. Also to be rigurous, if item per item check was neccesary, you would need to go over the nested elements too. This seems like something one would obviously want to do but none of the provided functions seem to give you this information. Any help would be appreciated. I am using ansible 2. I'm doing this by doing list_a | difference(list_b) this seems to work as intended, but it's giving me results where the only Learn how to efficiently iterate over two lists in Ansible using product and subelements filters to execute commands across dynamic and static data. I am trying to create a linked list class and I'm having trouble determining how to check the equality of two lists using the operator== (equality operator). The question has been changed to check if one list contains all elements of a second list. Load 7 more related questions Show fewer related questions Sorted by: Reset to This post will discuss how to check if two Lists are equal in C#. i. The json_query expression above returns a non-empty list when there is a match, and an empty list otherwise. Modified 3 years, You must make use of nested loops since you must check through all possible pairs which may satisfy your condition. I want to check if the value is in {{ variable1 }} but I get an error: - name: do something when the value in variable1 command: <comm Skip to main content. yml -e packages = Third: -e argument for ansible-playbook accepts two form of values: key=value and JSON, But when checking a list, we need to be sure that is not mapping, not a string and iterable: - name: Assert if list assert: that: > ( 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. Just not defaulting defined but unset variable. list2 contains three constant names. SequenceEqual method from LINQ. In vars/main. – Vladimir Kocjancic. Fast Ansible: check if variable equals string. List equality is determined by comparing both the length and the contents of the lists. However, I'm unsure of how to do that. g. Example checking that ['pkg_mgr', 'python'] are both present in ansible_facts. This is what I have tried--- - hosts: localhost vars: list1: - user1 - user2 - user3 - userN list2: - user1 - user2 - user3 tasks: - name: check debug: msg: the 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). Also check that the lists are the same length. Commented Mar 16, 2014 at 22:39. Stack Overflow. When you run in diff mode, any module that supports diff mode reports the changes made or, if used with --check, the changes that would have been made. With groups. There's identical which only works for pairwise comparison. The question is how do I Assert to check the lists are equal? I have tried CollectionAssert. 5. 5) you can just use. you could use the map filter on the item. Those sets happen to be represented with a list, but essentially you are trying to do a set comparison. The use case is I want to sync /tmp/1 to /tmp/2 but you only want to remove the files in that are no longer /tmp/1, then you can sync (copy/template) the /tmp/1 directory knowing that nothing I'm trying to compare two lists in Python, checking if they are the same. Is it possible to check if a string exists in a file using Ansible? I want to check is a user has access to a server. Directory one is the Source, that I want directory two to look like. Diff mode is most common in modules that manipulate files (for example, the template module) but other modules might also You should consider using a HashSet, rather than a List. [1,2,3], the test says I have two objects A and B. ansible doesn't parse pg_master_ip. if the two instances are pointing to the same object in memory) unless the operator has been overloaded. var array3 = array1 === array2 That will compare whether array1 and array2 are the same array object in memory, which is not what you want. This can be done on the server using cat /etc/passwd | grep username, but I want Ansible to stop if the user is not there. Improve this answer. is not included in "ansbile_host" and then execute the task: In my case default filter doesn't works. If 2 are the same, then in addition to the 3 matches, I need to validate if my list of lists has equally sized lists. So, a list means and, while your needs here are to use an or, as you pointed it in your answer. The function match() returns us the corresponding indices for which x is equal to y, and vice versa. I don't know in advance if items of first list are in the addr filed of the second list. Implementation: [GFGTABS] Java // Java code to show the implementation of // addAll method in list interface import java. columns is a list indeed. What I want to do it's to fail when one value in dictionary_2 is higher than the value in dictionary_1 for the same key, but not fail if value in dictionary_2 is lower than the value in Working on a project where I'm comparing two lists of different lengths and then copying one value of a column to another column in the other list. So, we need to know how to write lists and dictionaries in YAML. There are several ways to check if a directory exists in Ansible. var a = ints1. Compare Two List<Objects> 0. Ansible List Variable and Select Filter to ignore matched items. Below is what I came up with. Follow Using jinja if clause in ansible templated yaml (through template lookup ) 1. We have outlined some of them so that you can choose the method that you are comfortable with and determine if the two lists are equal Using diff mode . I couldn't do this with: if all (x == x I am a noobie in Ansible and struggling with comparing two registered values in my playbook. Both one and two hashes in macro parameter seem to work What is the meaning of "I apply my personality in a paste"? Cache tags not bubbling up correctly in blocks Is there But if we remove two Users (for example) from one of the Conversation’s List of Participating Users, the conditional is no longer true since the lists are not the same size, and the “Lists are not equal to each other” default text will display: 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 Why can't I write a general function to check if two lists are equal? 0. This is because the == operator in general tests reference equality (i. Is there a way to filter ansible vars based on condition. yaml when: any_member_of_this_list in update is actually a reserved word (i. Compare a variable with a text. find: paths Ansible - how to check if all elements on list are the same? 0. If you believe it’s different, How to compare or lookup specific values from two lists in ansible and print. There is a working solution - hosts: 127. stdout is a result of an earlier register task. This only works in later versions of Ansible, for alternatives for earlier versions see other answers. How to compare 2 linked lists in c++ and put matching data into another linked list. (dict1's and dict2's keys and values must match. There is no module to manage/check processes in Ansible. It compares the Array lists as, both Array lists should have the same size, and all corresponding pairs of elements in the two Array lists are equal. All(). Or as a more Pythonic way you can use zip(), in order to check if at least there are two equal consecutive items in your list: >>> any(i==j for i,j in zip(lst, lst[1:])) # In python-2. Both lists should end at the same time. dataframes, are value equal in R? By value equal, I mean the value of each row of each column of one dataframe is equal to the value of the corresponding row and column in the second dataframe. If your condition is that the content must be the same, but the order is optional, then using sort() and comparing them is a perfectly good solution. Order in this case does not matter, meaning that {1,3,2} and {2,1,3}are same. 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 perform some very complex transformations. That is the pythonic way of evaluating truth, null, empty strings, empty lists all evaluate as false. First modify your test class and implement (override) the Equals function. You cant generalize to find tripples though (they might just be two pairs), but that wasn't the question. assert_dict_equal dict2, rel_tol=1e-8): """ If dictionary value is a number, then check that the numbers are almost equal, otherwise check if values are exactly equal Two problems here: You want to iterate over the value of required_vars variable value, so you need to provide it as an argument to with_items: "{{ required_vars }}":. equals([1,2,3],[1,2,3]) is an equality that considers two lists equal exactly if they contain identical elements. contain the same values. 3. [1] Minus is not supported,so need to use EXCEPT as told by @Bogdan [2] Using only EXCEPT does not consider duplicates so had to use EXCEPT ALL [3] EXCEPT ALL require that column This post will discuss how to compare two lists in C#. This works if I use the name of the list: - fail: msg="unsupported version requested" when: requestedversion not in windowsversionlist But the name of the versionlist is also a variable because there are more lists like linux and windows. There’s another small quirk to YAML. As other posters have Your code only checks n. How it works: I am building a new dictionary with simple key-value pairs of package_name: version, i. But isn't there an easier and more readable way to do this? I have two Lists ListA<Emp> and ListB<Emp> both are having 1000 records. eq: from operator import eq, hasEqualNeighbors = any(map(eq, a, a[1:])). Set the result res to True, otherwise set it to False. env list to get a list of names each element in the mylst contains. Is there exists any elegant way to express it? sample: - A. , but no external binaries) for my own personal growth. We'll cover how to use Ansible's built-in filters like select and selectattr for I don't have a code for this because I have no idea how to do it, and couldn't find much help on Google. Skip(1). I have lightly tried a hashtable from the forge but I feel like there has to be an easier built in way. So I wrote the following function which I have two lists: list_1 = list(2, 3, 5) list_2 = list(2, 3, 5) How can I find out if the 2 lists are exactly equal. Tensor({9,8,7,6}); local tens_b = torch. if I run: ansible-playbook -i hosts -e hosts=myhost test. [True, False, True, True . Another solution is to check if 192. Add a comment | both lists have the same size, and all corresponding pairs of elements in the two lists are equal. with_items: "{{ required_vars }}" Currently you are providing a list of a single element with a statically defined string required_vars. If one set is not a subset of the other, It checks whether their addresses are the same and, if it is, it returns true. Individual elements are equal if their values are equal, not if they refer to the same object. Viewed 284 times I have a list that I would like to use to see if any of the members of the list are in a second list, and use that in an Ansible when clause. checking two lists contains same property values. I found this question, however I am not sure if the syntax differs from python to ansible (I have never seen an if statement in ansible!) Check if value already exists within list of dictionaries? I have already tried the when condition: when: '"value" not in list' however I have not had any luck with that. txt get_checksum: yes register: test_file_check - debug: var: test_file_check. Or you could do a method that does not involve sorting both lists and then also comparing them. I want to return True of two lists of dictionaries are memberwise equal (member being the content of each dictionary, disregarding order of lists), else return False. NET in a web application. I like it better, because it is more general. The selected_item variable stores the correct item of a list in this case. If you don't bother about order of elements in both lists, and your goal is to just check that two lists are of exactly same elements, without any others, you can consider two mutual containsAll calls like: This question is similar to: How can I check if a string exists in a file?. fail: msg: "Foo is not set" when: foo is undefined or foo == None or foo | length == 0 - name: Show var ansible. Ansible compare two list variables. Faster way to compare two lists of differing objects. intersect for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter Your code only checks n. - name: find lineinfile: dest: /etc/passwd regexp: [user] state: present line: "user" Hello everyone! In this blog post, we're going to look at how to filter lists in Ansible. 3,579 2 2 gold badges 20 20 silver badges 29 29 bronze badges. How do you check if one element is contained in a list? One way to do that would be to compare that one element with each element in the list until you found it - somewhere along the lines you have already done - but not quite. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. Search for a list of strings in ansible register variable. How can I do that? How to compare two lists in ansible and print desired output below, i have looked other posts in stackoverflow regarding comparing/lookup list , but the way i want desired output is a bit different, unable to figure out the logic to get this working. How to compare all items in the lists are equal? 2. 2. The --diff option for ansible-playbook can be used alone or with --check. List1: 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'm new at Ansible and YAML syntax and I'm facing a simple issue: how to iterate over two lists, with the same index? Something like that: int[] listOne; int[] listTwo; --- Attribute some valu Check if two lists are equal. This will work regardless of whether your input is a simple list or a nested one. also i think diff (as name of the variable to register the tasks result) leads ansible to confusion, change to diff_result or something. I am basically completing a hacker rank excercise where you return 1 if the list is completely equal meaning there are same number of nodes in two lists and all the values in nodes also equal. To find items that are different between two lists in Ansible, you can use a combination of Jinja2 filters: difference It's not very clear to me how are the 2 lists in the beginning, but the point is that you want to see the difference between them? You could check this link: How to check if list contains only elements A? (Yes, it is exactly string). Any help how to achieve to match the entire exact string in the array. I've set the list of acceptable versions in a variable, and I want to fail out of the task if the supplied version is not in the list. I want to write a function that takes as parameters two lists and checks if every element in the first one is included in the second ( the order of the elements doesn't matter). Check if two lists are equal. your "diff" task is missing the shell keyword, Ansible thinks you want to use the diff module instead. In order to do what you want, you'll need to check whether the two arrays have the same length, and that each member in each index is identical. 4. stdout != "" would not pass ansible-lint check! Ansible When Variable Equals: It cannot check if a variable is between two values. How to filter unmatched value from ansible variable. Check if two linked list are equal in java. When given a list, how to check if elements are equal, or not. Here I have implemented it as a trait on Vector<T>: update is actually a reserved word (i. Compare two lists of object linq. 6. and How to create Ansible List and append items to it. To incorporate the "empty set" behavior specified in the comments, you simply add one more line before the two above: For example, the following playbook lists the contents of the `/etc/ansible` directory if it exists: – name: List the contents of the /etc/ansible directory. The simplest way to check if two lists are identical using the Please can someone see what I am doing wrong? Service is not the same as process in computing. checksum Now if file contains are same, checksum value are equal otherwise it doesn't have same. equals one might also use Objects. Conditional if. Please point me to any post that can help me. util. Hot Network Questions Did Jacques Charles first attempt to use the Celsius scale in his gas law? Copying from here: Check if two unordered lists are equal. then if the keyword "n1" is in that list, add to the final_var. See the following playbook. Two lists are equivalent if they have the same elements in the same quantity but any order. rc > 1" register: diff_output - debug: var: diff_output I have an array of return values from a PowerShell script and I would like to execute a command only if all items in the array are 0. I do not like it, but it works. register is not a legal parameter of an Ansible Play. Object A is actual result I get during JUnit test. Is it possible that the committee contacts only one reference while applicants need to provide two? How could a city build a circular canal? In this example I have two directories that I want to compare, directory one (/tmp/1) and directory two (/tmp/2). and I'm kinda lost with it. 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 I'm running into the silliest issue. builtin. yml --- I want to check whether two list are the same in that they contain all the same elements or not, orders not important. And that's why I have to use the . I think this is the best answer for this question because. In most cases, you can use the short plugin name difference. Filter Jinja list by key existence. I want to compare both lists in a way that if "task1" == "completed" then it's a success, else it should fail. If it is zero, the list is empty. User Yuriy Saraykin suggested to use setequal(). Its a little less expensive: HashSet<string> firstSet = new HashSet<string>(); HashSet<string> secondSet = new HashSet<string>(); PopulateSets(firstSet, secondSet); //Example of method you might use to populate your hashsets. Print the result res along with an appropriate name: check if an item does not exist in list condition: event. The name of the list is also stored in a variable. It cannot check if a variable is a member of a list. However, based on the responses I received, it seems that converting the arrays to lists is the most elegant way. In this case, for example. How would you confirm that each of the elements in the list is like the other, or see if at least one is not? In other words, if we have This works because a non-empty list evaluates as a true value in a boolean context (and an empty list evaluates as false). How to Check if elements of two lists are equal or not using IF statement in python? Hot Network Questions Should I bring a gift for my supervisor based in a university in Central Europe? You should use ansible gather_facts: yes output so that your ansible playbook is common across all platform, else reading /etc/system-release won't work on all platform. Skip to main content ansible ansible. Compare two lists, item by item, using linq. However, it is equally possible that your marketaccess is Using diff mode . Ansible condition when string not matching. So in input I have a list of mounts defined in a variable, ie: mounts: - '/' - '/home' - As you can see in my example, the ansible_host is equal to the hostname of the VM, if no IP address was detected. So one should start with assuming a true The list is of string: openldap_nsswitch: - group - hosts - passwd - shadow If the string is in the list I want to output something in the template. So one should start with assuming a true From reading the Ansible When documentation, I'd suggest removing {{& }} from your when: clause: when: 'Xisco NX-OS' not in ansible_sysdescr If it's not enough, try debug: module on ansible_sysdescr key to visually check if that exact phrase is present. List<T> does not define an == operator so the base reference equals implementation is used. SequenceEqual(aLst2); Sample Data: Check If Two Lists Are Equal and Maintain Order. Value; return yyy. Check if two lists are equal python: There are several ways to check if two lists are equal or not. I came across with kotlin equals function to compare two list of same type. Otherwise, it checks to see that their sizes are identical. has_unique_val: "{{ I want to compare 2 lists and find what's different between them. After a little bit of investigations I realized that the comparison returns another list with booleans to check if the content is different or not. Just for the sake, i still did some tests. AddRange({1, 2, 3}) Dim list2 As New List(Of Integer) list2 Loop through one of the lists and check if the other list contains the element. I cannot figure out how to test for boolean in an Ansible 2. Without knowing how to do the for loop version, simply being handed the How to check if two lists are equal with duplicates? 0. The tst fails as soon as two compared nodes are not equal. The problem is, that I don't want to compare the lists like assertEquals(list1, list2). 3 that aims to be a concise list of only the packages that changed. I'm trying to see if two lists are exactly the same and I'm having trouble doing it. How to determine if all objects inside List<T> has the same property value using Linq. equals which also tests for null. levels is not select('>=', 10) action: debug: msg: The list does not have item with the value greater than or equal to 10 In the above example “levels” is a list of integers e. Create two lists of tuples test_list1 and test_list2. I am trying to compare some variables so here is my case: pg_master_ip is an ip obviously. This is not because of Ansible, but Yaml would interpret this as an object. Ansible: compare two arrays by specific field. array_equal as it is the method recommended in the documentation. ) Here's my way: A basic == will only check if each element in one list is equal to the corresponding element in the other list. x,in order to avoid creating a 'list' of all pairs instead of an iterator use itertools. Thanks. 4, and here are my results. izip() True I want to use assertEquals() on the two lists list1 and list2. Commented Sep 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 Visit the blog We have to check if two given linked lists contain the same data. I'm trying to check if the version supplied is a valid supported version. let the two lists be list1 and list2, and your requirement is to ensure whether two lists have the same elements, then I've got two lists in Ansible that I build on the fly using the find module - name: "Find all files in {{ backup_path }}" ansible. SequenceEqual Method. Ansible filter by attribute contains a value. server-config. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. By “identical”, we mean that the lists contain the same elements in the same order. sorted(x) returns a new list. stderr and 'Cannot find any I want to check if two lists A and B are equal, i. Two lists are considered equal if are structurally equal. Needs to be solved within Ansible config file that is shown. How to check if all elements of a list are different. The test method: Here is another solution, that iteratively concatenates a list of list. Here are effective methods to achieve this: Method 1: Using the Equality Operator (==) The simplest way to check if two lists are equal is by using the equality operator (==). All(ints2. I'd like to have something like: - fail: msg: "please check the value from *dictionary_name*". See more linked questions. symmetric_difference(key1=value1, key2=value2, ) A list. When you have multiple conditions that all need to be true (that is, a logical and), you can specify them as a list. As other posters have I want to check whether two list are the same in that they contain all the same elements or not, orders not important. I think I should approach this way: Check the data in list1 against data in list2 and if there are equal data, remove it from both lists. I have an entity, workorder_extraoptions and another one deal_extraoptions. If the variable is not valid the test should fail. 108. The ArrayList. I need to compare these two lists and check if they are exactly the same. Run an Ansible task only when the variable contains a specific string. For a conditional value use if or ternary filter (example in this answer). ArrayList<Person> people = new ArrayList<P How do I check if two Objects are equal in terms of their properties only without breaking the existing Object. Obviously List == List will use Object. If two dicts are equal then necessarily their lengths will be the same, and so will be their elements. Check only string using ansible. , a1 == b1, a2 == b2, I have a working solution: all (\x->x) zipWith $ (==) A B Another idea is to do it recursively: a:as, b:bs; check if a1==b1 and call the function with the remaining lists as and bs. 1. Emp is an object Check if two lists are equal. I would like to know the "right way" to do this (using Ansible modules, Jinja2 filters, etc. equals states that two lists are equal if they contain the same size, contents, and order of elements. For comparing the 'new' package to the currently-installed one: I am using a trick with selectattr in Ansible 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. [], ['A','A', 'B'] False should be returned. If statements cannot iterate through the length of a list when you do not know how long the list is. Same goes for all items (task2 == completed, task3 == completed and so on). The problem is that both lists can contain duplicate elements, and in order to be considered equal, they need to have the same amount of duplicate elements. e. Two objects with different identities may compare as "equal," depending on that class's definition of What is the simplest way to find if two Lists contain exactly the same elements, in the standard Java libraries? It shouldn't matter if the two Lists are the same instance or not, and it shouldn't matter if the type parameter of the Lists are different. When I loop over list1, how can I write my when condition to check if item is contained in list2?. PLAYBOOK: 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 var val = yyy. It is to store a group of Also, no Ansible statement can start with variable expansion (like {{ foo }}). Other older alternatives not recommended or even not working: result. is not included in "ansbile_host" and then execute the task: This is unnecessary. I have two objects A and B. I want the same thing, but without order mattering. This should pass. All(x => x. Related. Equals()? Ask Question Asked 13 years, but as ebyrob's comment indicates, best practice is to override GetHashCode() anyway and IEqualityComparer only has the two methods Equals() and GetHashCode() to override. yml, I have: destroy: false In the playbook, I have: roles: - {'role': 'vmdeploy','destroy': true} In the task file, I have the following: xUnit Equal method returns false for two IEnumerables with equal content. Is there a simple way to do this? Or will I need to do a nested for loop, and manually check each index of both lists? ansible to compare two strings in a file and check if equals to defined variable. Fail if variable does not match a regular expression. We have a method called assertEquals(obj expected, obj actual) in JUnit but I don't want that way. Check if set1 is equal to set2 using the == operator. Since I am using rpm command, ansible is throwing the warning but since we are using rpm command just to get the package list, the warning can be ignored. Checking if two lists are equal in Python is straightforward. properties" res_green: [] res_blue: [] tasks: - name: Check the bad debts results from green side shell: grep CodeListString the two variables are equal when I test on my side. Nevertheless, it led me to a solution: Inspecting the code for setequal(), we see that it checks for match(x,y) and match(y,x). In this case though, map can work better, no need for zip at all with operator. Some remarks: Indent your code for readability; Check the case where the list only has one element; You call your function recursively when first and second elements are distinct, but in that case you don't need it since the property is already known to be false. Despite these limitations, the Ansible when variable equals condition is a powerful tool that can be used to I have two dictionaries: source_list: myFlag1: true MyFlag2: false And second dict: target_list: MyFlag1: false MyFlag2: false Keys are identical always, but the Ansible check if key/value pair exists in list of dictionaries. equals() method that does things right. This will give you class the ability to compare itself with another object and tell whether both are same or not. Hot Network Questions How to avoid killing the wrong process caused by linux PID reuse? I am looking for the easiest way to check if all elements from a list are present in another bigger list, in Ansible. Later in my playbook, I combine the variable with Ansible's user module to add either sudo or wheel to an account's secondary groups depending on the OS Ansible is running on: - name: Add or update bob account user: name: bob uid: Both of the above examples checks for the same value (attribute “nested” inside of “something”) to be equal to true. Commented Aug 12, 2020 at 8:28. --- - name: latest file check stat: path: /tmp/test. If I could u I have an Array List of type String and an Array List of type Person. SequenceEqual(ints2); Or if you don't care about elements order use Enumerable. It is not pointed on the documentation page of the assert, indeed, but the assert module works with lists like when does. –. Using when conditional to match string in output register (Ansible) 2. Ideally, each of your class should have its own Equals implementation, and the parent class should have no business of comparing the internals of child objects. It compares the lists as, both lists should have the same size, and all corresponding pairs of elements in the two lists are equal. The elements in the lists are the same, but the order is not important. How to apply jinja2 filter to ansible list items? 3. I need to assert that two object instances A and B are equal in value and not actual object. I need to loop through the first list and loop through the second list and then perform conditional check if item of first list is equal to item. If 2 are the same, then in addition to the 3 matches, This works because a non-empty list evaluates as a true value in a boolean context (and an empty list evaluates as false). stat. Somewhat more straightforward to use any here, and using lambda with map is always the worst option (map with a C builtin can be good, otherwise, use generator expressions). e. – DustWolf. However, given your example of lst = [[<object1 at 0x04130AB0>], [<object2 at 0x04130210>, <object3 at 0x04130A10>]], you are trying to check for identity. 5 which took some time to fix. Duplicated elements are considered equal, i. AreEqual and Assert. Is there a way or workaround to Note. I am trying to determine if two HashSet objects in . 7 I'm working with lists, dictionary of lists, etc. If set1 is equal to set2, it means that the two original lists are identical. The collection library provides methods to define such an equality. Refer - hosts: all become: true gather_facts: yes tasks: - name: Distribution debug: msg="{{ ansible_distribution }}" How do I check if two Objects are equal in terms of their properties only without breaking the existing Object. Value == val) ? val : otherValue; Cleanest way I can think of. It can be done in hard way too, but is there a simple way to do it. I have a list that I would like to use to see if any of the members of the list are in a second list, and use that in an Ansible when clause. I need to create a check very similar to that one explained here: Ansible to check diskspace for mounts mentioned as variable Except I need it only for specified paths (for example /var). getNext in every loop step. Most efficient way to compare two List<T> 1. Instead of . I am quoting the same answer over here. This code obviously doesn't work because even if two lists are equal, the recursion will lead to (empty) for list 1 and list 2 will still have data, making the final output false. I have two lists list1 and list2. What is in first but not For comparing the 'new' package to the currently-installed one: I am using a trick with selectattr() | list | first, which is searching for an exact match on package name, and then filtering out the When you have multiple conditions that all need to be true (that is, a logical and), you can specify them as a list: If a fact or variable is a string, and you need to run a mathematical comparison They calculate the difference or the symmetric difference between two or more lists and preserve the item order. when: value is different for the same key in the two dictionaries" If you'd like to test for equality for every object property, one at a time, in order to compare and contrast two objects and see which individual pieces are different, you can use the following function, adapted from this article on how to compare all properties of Use SequenceEqual to check for sequence equality because Equals method checks for reference equality. Assert. Ask Question Asked 9 years, 3 months ago. NET 3. In many cases, you will need to perform complex operations with your variables. bdmiguvkivbahvaiogbbtbezfjrwkzydodygtjcwapryc