Ansible length of list. size_g}} (That don't work, ansible cant use .

Ansible length of list This filter plugin is part of ansible-core and included in all Ansible installations. key}}'] }}" to understand how many results you have in the loops We get the length of each list using the length jinja filter; We check that both lists have the same length; Scenario - Check if for a value match in list of dictionary/objects . 6. 1. Iterating list of dictionaries with dictionary. 0 pycparser 2. For this simple example I can do | first to get the actual item. yml --- users: - username: alice uid: 10000 - username: vincent uid: 10001 - username: sandy uid: 200 Skip to main content. Is there a way to sort a list in Ansible or Jinja in a natural way? For example this is the list. I could solve it by using a command or shell module to insert commas at the break points and then using {{ str | split(",") }} but a pure Ansible solution would be nicer Edit: the behavior the subject of bug set_fact won't update a fact while looping (breaking change) I have to check if a list of mount points are available on the system. x, if the list is too large, the yum module will fail out, reporting “ValueError: filedescriptor I don't understand what you mean, I didn't understand your pictures and I have no idea what boomi is. zip_longest for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same Note. intersect filter gets the "unique list of all items in both" , so if length is more than 0, then there are matches found. yml --- - name: test To check whether it is installed, run ansible-galaxy collection list. 63 cffi 1. Hot Network Questions System of quadratic equations with three unknowns from Berkeley Math Tournament 2024 Purpose vs Length of Stay Note. HOSTVARS (ANSIBLE GATHERED, group_vars, host_vars) : {{ hostvars[inventory_hostname] | to_yaml }} PLAYBOOK VARS: {{ vars | to_yaml }} OMG, don't know what kind of crack mpdehaan was on when he made this decision but it makes with_items work in a completely inconsistent way. Loop over subsets of Ansible array. If you have a list of dictionaries, the Jinja2 groupby filter allows to group the list by an attribute. Getting started with Ansible If you need to convert a list of key-value pairs to a dictionary, you can use the dict function. join() convert that (modified) list of rows back to the multi-line string. I would like to iterate over all of the elements. groupby_as_dict filter A more general approach (not only for integers) would be to use a difference filter removing all occurrences of 0 (from the resulting list of mapping rc as above) and checking the size of the remaining list. Writing a list to a file in Ansible. ansible list files in a directory. So right, here goes. To install it, use: ansible-galaxy collection install fortinet. 2 packaging 24. In the list awx_credentials, the values of the attribute name are unique. The select attribute function returns an empty list even though there are items. In most cases, you can use the short plugin name subelements. 2. Let's say I have the following input structure domain: topdomain. I’ve written a playbook to manage my (local and public First of all, whether you want to get just the first row or first column in all rows is not clear. stdout != "" would not pass ansible-lint check! Grouping . Ansible has the intersect filter, which will return elements which are contained in two lists. when: var. From the output, the input is a list. hosts [destnode] myhost1 myhost2 myhost3 cat myplay. To install it, use: ansible-galaxy collection install ansible. Ansible Select version: Search docs: Ansible getting started. We have a scenario where we have a list of exempt host gives the list of hosts in the group csdr with undefined foo. $ cat test2_zip_list. 63 botocore 1. 3 that aims to be a concise list of only the packages that changed. - name: test debug: msg: "{{ result. difference for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter Note. In most cases, you can use the short plugin name permutations. 018. If the original list contained other elements, the How can I create a list like this in an Ansible playbook: ['user1', 'user2', 'user3', '', 'user20'] and save it to a var in that same playbook? I tried Using set_facts and with_items together in Ansible and modified the answer of @serge a little bit. with_items: - item 1 - item 2 - item 3 or if you are looking for a string contains way(for strings not lists), then do like this. Transforming variables with Jinja2 filters . Sort nested ansible dictionary by key. After all, they are all part of YAML, which administrators use to create Ansible playbooks. startswith(4*" ") else row within [] (the list comprehension) then indents rows starting with 4-space indent by another 2-space indent, "\n". If you know that for every grouper, there will be a most one entry in that list, you can use the community. com subdomains: - name: foo - name: bar And would like to have this output domains: - name: foo. If you are interested in the difference between the configuration (list), in example if settings are missing. Unfortunately, this function cannot be used with map. 1'] I want to dynamically create a list . - item3. - name: extract first column set_fact: extracted_columns: "{{ extracted_columns|default([]) + [item. With Ansible, you can execute tasks and playbooks on multiple different systems with a single command. I created a task like this. I've tried using ^ and $ to When you want to access the exact volume you need to write the volume name hardcoded you cannot set a variable inside an ansible fact like: "{{ ansible_lvm. I do not like it, but it works. Keyword parameters. Schengen Visa - Purpose vs Length of Stay Explanation for one of the signals on capacitive coupling in The Art of Electronics How to define random slopes in GLMER? A Subreddit dedicated to fostering communication in the Ansible Community, includes Ansible, AWX, Ansible Tower, Ansible Galaxy, ansible-lint, Molecule, etc. 0 urllib3 2. my input is a list that i am loading into my Is it possible to convert a list of lists/dicts to a list of strings using a formatting string in Ansible / Jinja2? Inconsistent results while formatting a list with Ansible. In most cases, you can use the short plugin name zip_longest. This custom format, like in I have a list of strings and the dates associated to each string. This article covers analyzing and using the data in lists and dictionaries, Ansible uses variables to manage differences between systems. Number_of_elements: "{{ foo | length }}" @U880D What makes it slow is less size of the data as just the length -- Ansible creates a task for each iteration, I'm pretty sure that's where most of the overhead is. Ansible filter by attribute contains a value. search_list: "{{ {{ main_var3 | selectattr('a', 'equalto', 1)}}" But then the search_list is a generator not the dict I want. disks[0]. This method is effective for filtering out items based on partial-string matches. However, in more complex result I want to be To check whether it is installed, run ansible-galaxy collection list. every previous item is getting overwritten with the new item being added. the way you have it, set_fact gets equal to the "current" item from the iteration, probably this is why you see only 1 disk in the final result. For example, let's say you've created the following variables and lists using vars and debug. Best. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, I have two separate lists. If nothing is returned by check_deployments. or the array do not have the same length. I worked out a quick solution that I figure may be useful for others too. Then I tried this. Stack Overflow. 2k 29 29 gold badges 208 208 silver badges basically you parse the array_of_array_to_check list, and if you find common elements in its elements' hosts list with the array_parameters, then you add the whole "item" to the results_array. In most cases, you can use the short plugin name dict2items. I’m trying to use the efs module to create EFS volumes dynamically in AWS/EC2 by getting the list of subnets/security groups for a VPC. stdout_lines (check_deployments. split("\n") creates a list of rows from the rows multi-line string, the expression 2*" " + row if row. version_sort . g "systemd". . Create a dynamic list where the content of multiple files are the elements. I assume since you are posting in r/ansible you have your 'array' in a variable. Adding to the already given answers I would like to show you a different way to define a list with set_fact using the regular YAML syntax instead of the custom format which Ansible core folks like to use in their docs. counter filter plugin allows you to count (hashable) elements in List length: Use the length filter to get the number of elements in a list, for example: debug: var: my_list | length. Lists are used to keep related elements grouped together for easier management and operation. Follow edited Apr 16, 2021 at 13:26. debug can be used to output the entire list. I’m slowly but steadily adopting it for real work. hostvars is for accessing variables belonging to other hosts. The simplest option is to use the setup module parameter gather_subset: mounts. 6,655 5 5 gold badges 30 30 silver badges 42 42 bronze badges. This will output the length of 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 order is not strict yet - debug: msg: "First item in the list: {{ ansible_processor[0] }}" when: ansible_processor is defined Share. 251: prefix_length: 24 Vlan6 $ pip3 list Package Version ----- ----- ansible 10. Therefore the length of an empty is always 0, ansible-inventory --list -i inventory/hosts. Quoting the doc: If you run ansible command by itself, it will print usage info and you will see:--list-hosts outputs a list of matching hosts; does not execute anything else So running something like the following: ansible -i my/ansible/inventory. Here's a sample implementation. 3 Below is what I came up with. {{ a | intersect(b) }} The result would be a list containing the elements 2 and 3. I haven't tested this but ansible uses python, would this or some permutation thereof possibly work? when: "Sec. items2dict filters to manage data types. Unfortunately, this doesn't work properly for all OS. general. --- - hosts: all vars: fruit: - apple - banana - orange - grapes tasks: - name: output the contents of the 'fruit' list debug: vars: fruit Ansible Community Documentation. length is a Jinja filter used to return the number of elements in a variable or list. With ansible > 2. The simplest and most common way to do this is by using the len() function. 10) 1. Follow edited May 31, 2019 at 19:28. You need further requirements to be able to use this module, see Requirements for details. 1. 018). 2 pip 24. Ansible List acces from value var. I tried adding to the survey the following two lines which are already on yaml format. 23 1 1 silver badge 3 3 bronze badges. ; This approach is compatible with Jinja2, which is the templating system Ansible uses. pass}}. 2 I am learning ansible and tried to test how ansible zip works well with loop in order to get the appropriate index value of the combined list in ansible. 18. Flatten only the first level of a list (akin to the items lookup): I have one list and convert split into list of list, please find the below example, List: ['sk','bk', 'ab','4',,'5',6','ku','in'] Expected output: [ [sk','bk', 'ab For example, a registered variable might contain a dictionary when your next task needs a list, or a user prompt might return a string when your playbook needs a boolean value. Synopsis This plugin returns the indices of items matching some criteria in a list. zip for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter plugin name. I would like to know why this limit is in place, and when will things start to break in Ansible? I want to parse the output of yum check-update ansible equivalent to get only the list of package in human readable format. In Ansible, a list is a data structure that holds an ordered collection of items. List appending: Use the You can count the number of elements in an array with the length filter. subelements for easy linking to the plugin documentation and to avoid conflicting with other collections that 5 days ago · For example, a registered variable might contain a dictionary when your next task needs a list, or a user prompt might return a string when your playbook needs a boolean value. samnoon samnoon. general . results. This is a copy of the test code I put together - for the actual role I just added the admins|regex_replace variable into the j2 template. Below you could use the map filter on the item. type_debug, ansible. So, I defined a variable with the list of mount points then extracted the available mount points from Ansible facts. Ansible Community Documentation. log' age Looping nested list in ansible. Also, in the same directory level as the inventory file, I tried to sort Linux block device used by ansible_facts. sh. For example, I have two lists: FullList: - name: "Test1" value1: " Loop through a list of dictionaries and return another list in ansible. flatten for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter Ansible isn't really designed to produce "nice" output on the console. Try Teams for free Explore Teams I am trying to print the data listed below : user_list. vars: my_list: - item1. 130. The first one is a list of network interfaces gathered by Ansible: "ansible_interfaces": [ "ens32", "ens34" ], The second one is a list of IP addres A Subreddit dedicated to fostering communication in the Ansible Community, includes Ansible, AWX, Ansible Tower, Ansible Galaxy, ansible-lint, Molecule, etc. ansible-inventory --list -i inventory/hosts. Additional Tip. I’m struggling on how to get the count of subnets and looping over it to set the “efs_targets” fact properly to send to the efs module ` To check whether it is installed, run ansible-galaxy collection list. PLAYBOOK: I am using Ansible's vmware_cluster_info to give the following json. size_g}}" <- this works but the latest (the actual lv name is hardcoded and I would need something like "{{ ansible_lvm. Other older alternatives not recommended or even not working: result. csdr_foo_und: - ovh-vm1 - ovh-vm2 - ovh-vm3 gives the list of hosts in the group csdr with foo equal to baz. Ansible - get list of multiple attributes and do lineinfile. Related. I'm trying to build an array/list of JSON objects in Ansible. anand anand . 0 ansible-core 2. Explanation. dict2items for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter Hi, I’m new to this forum, so allow me to introduce myself. There is no problem with Linux. In most cases, you can use the short plugin name difference. Advice welcome. At the moment I'm setting I haven't tested this but ansible uses python, would this or some permutation thereof possibly work? when: "Sec. {{lv_name}}. 10 - name: &quot;Generate list&quot; set_fact: dst: &quot;{{dst_list | default I have two separate lists. 3 six 1. 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 Ansible isn't really designed to produce "nice" output on the console. when: result. csdr_foo_baz: - ovh-vm6 - ovh-vm7 - oracle-vm4 - oracle-vm5 gives the expected result. and How to create Ansible List and append items to it. I want to sort the list by the date and pickup the latest string. For this, the community. Do length on that and you should be sorted. tasks: - name : list files older than 30 days find: paths: /var/log patterns: '*. Ansible Loop over dictionaries and lists. That means when you run this task There are more options. Open comment sort options. For a composite conditional List length: Use the length filter to get the number of elements in a list, for example: - name: List length debug: var: my_list | length vars: my_list: - item1 - item2 - item3. test. To represent the variations among those different systems, you can create variables with standard YAML syntax, including lists and dictionaries. split(' ')[0 Removing Items Containing a Specific Substring from a List in Ansible. 5) you should be able (did not test directly) to achieve the same result by using with_list instead of loop (although you should definitely consider upgrading). Expected result sda, sdb ,sdc, , sdaa, sdab, , sdbb Current result sda, sdaa, sdab, I believe if we break it down into shell script and ansible playbook it would be easier. user}} and {{item. You need further requirements to be able to use this module Output first disk size debug: var: ansible_facts. How it works: I am building a new dictionary with simple key-value pairs of package_name: version, i. Sort a list in Jinja2 based on length. That's what u/daniel-wtd has suggested in his The ports should have a length of five characters with zeroes at the beginning (2000 becomes 02000 and 2000-5600 becomes 02000-05600) and the ip addresses should have three characters for each subsection (18. set_fa JSON file list in ansible. You can also use the data type itself to - name: check for file size stat: path: /apps/InstallDir/data register: myDir - debug: var=myDir. The background is that I’ve got a dynamically built list of packages for installation. 1 s3transfer 0. I'm comparing two lists of different lengths and then copying one value of a column to another column in the other list. It outputs the entire tree of your inventory along with the vars assigned. List length: Use the length filter to get the number of elements in a list, for example: - name: List length debug: var: my_list | length vars: my_list: - item1 - item2 - item3. A Subreddit dedicated to fostering communication in the Ansible Community, includes Ansible, AWX, Ansible Tower, Ansible Galaxy, ansible-lint, Molecule, etc. 68. In most cases, you can use the short plugin name zip. yml were a simple list ie: deploy_env: dev: schemas: - year1 - year2 - year3 But as soon as I add additional items under each year (making this a dictionary(?) I start getting errors on the line: - "{{ years }} I basically want to populate {{ years }} with year1,year2,year3 values for this task. stdout | length > 0 That is the pythonic way of evaluating truth, null, empty strings, empty lists all evaluate as false. latest. In most cases, you can use the short plugin name flatten. fmgr_waf_profile_constraint_urlparamlength . Perhaps you could use a Jinja2 filter to do additional "list" processing in a template. Follow edited Apr 21, 2020 at 18:19. stdout_lines ansible -m setup hostname Only gets the facts gathered by the setup module. The first one is a list of network interfaces gathered by Ansible: "ansible_interfaces": [ "ens32", "ens34" ], The second one is a list of IP addres @JohnnyQ Depends on how you want to process the value. I would like to print specific lines form stdout_lines from ansible playbook with string e. lvs. If you encounter other similar issues with attributes, remember to check if a Jinja2 filter might solve it, as Ansible commonly leverages filters for list I have a list: ['bob', 'john', 'jack', 'rick'] Ansible loop over list generated with Jinja2 template. 2k 29 29 gold badges 208 208 silver The above works fine if schemas in vars. set_fact: disks: "{{ disks|default([]) + ['/dev/{{item. topdomain. dict filter can be used:-name: Create a dictionary with the dict To check whether it is installed, run ansible-galaxy collection list. 10. In addition, Ansible uses lists and dictionaries to exchange data within processes and with third parties. Cans. This lookup plugin is part of ansible-core and included in all Ansible installations. My problem is some VPCs have 2 subnets, some have 3, etc - so the tasks below fail. I am trying to get the following list of folders When you're working with Ansible, it's inevitable that you'll deal with lists and dictionaries. with the key of the dict being the group name returning the list of hosts belonging to it. Examples. ini. Sorting list in Ansible in natural alphanumeric order. On the first host in your play (play_hosts[0]), you're setting the secondary variable to the result of running bash/checksecond. 4. package_1: 1. 11. You can get the hosts in group 'foo' with: {{ groups['foo'] }} Assuming your hosts are named consistently, you can create a list of dev hosts from that group with something like: A Subreddit dedicated to fostering communication in the Ansible Community, includes Ansible, AWX, Ansible Tower, Ansible Galaxy, ansible-lint, Molecule, etc. In your case (ansible < 2. This will output the length of the list, which is 3. cat all. Ansible format list variable. Using len() How would I specify the first element of the "ansible_all_ipv4_addresses" list? ansible; yaml; ansible-facts; Share. If you have to use the list convert it to a dictionary first I would like to print specific lines form stdout_lines from ansible playbook with string e. 250: prefix_length: 24 10. Using temporary vars old_package and new_package to break up the work . dict2items, and ansible. Improve this question. In which case you can count the number of elements in the array using the length filter. 0 to run some maintenance tasks on a remote Linux server Ubuntu 16. Let’s take an example. Improve this answer. When working with a list of dictionaries, the I'm looking for advice. I have seen that some public projects simply edit the rules to increase this limit. If you want information produced in a specific format, you are better off generating a file from a template. Template (later called dump_variables):. 17. Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Further Documentation. disk_vars: - { Unit: C, Size: 50 } - { Unit: D, Size: 50 } With the variables defined on the playbook there is no problem but when I try to use a texarea survey on Ansible Tower I cannot manage to parse them as list of dictionaries. size_g}} (That don't work, ansible cant use I want to create a new list through a loop. Share. fmgr_waf_profile_constraint_contentlength . ansible Iterate over list in list. 5, you can get the desired behaviour by using loop rather than with_items. Imagine an inventory file like this: [maingroup] server-[01:05] Now in my playbook I would like to get the number of hosts that are part of maingroup which would be 5 in this case and store that in a variable which is supposed to be used in a template in one of the playbook's tasks. 6 boto3 1. permutations for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same To check whether it is installed, run ansible-galaxy collection list. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent first is a Jinja filter that can be used to get the first element in a list. ilias-sp ilias-sp. yaml ## Playbok to run a shell script on localhost - hosts: localhost environment: input: "" tasks: - name: Run a shell script shell: bash test. 9. 1 MarkupSafe 3. To install it, use: ansible-galaxy collection install community. 3. My code looks like the following: rows. The LIST is a type in data structure and is widely used in all programming languages. New in ansible. I want to return the list of children so I started with: {% for group in groups[maingroup] %} {{ group }} {% endfor %} Next, how can I add next to the group its length, comma separated? I was thinking something like this would work but it doesn't: 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 list: yum_repo_ip_addrs: ['172. sequence for easy linking to the plugin documentation and to avoid conflicting with other collections that The above seems a string not a list, so it won't working with in instead you've to use == for this to work or create a proper list in ansible with . 28. If it is zero, the list is empty. Follow answered Oct 6, 2021 at 17:23. If . Firstly, don't use hostvars[inventory_hostname]; plain variables are the ones belonging to the current host, and going through hostvars introduces some exciting opportunities for things to go wrong. you can use this syntax:. please see below. I have OS X "El capitan" 10. Could you please someone help me on this ? ansible; Share. 0. " in l for l in yum_sec_upd. Note. For a conditional value use if or ternary filter (example in this answer). Ansible how to sort output of command from multiple nodes. 7 - The below Ansible task is responsible for checking whether or not any JBOSS deployments exist from a previous Ansible run or not. loop over multiple list of dictionaries using ansible. i am trying to follow this thread but my output is not what was expected. 7k 16 16 gold badges 169 169 silver badges 165 165 bronze badges. builtin. 4', '172. I’m an Austrian IT guy living in South France, I’m working daily with Linux, and I discovered Ansible a few months back. Jinja2 includes many built-in filters and Ansible supplies many more filters. List Get expert tips on fixing "list object has no attribute length" in Ansible by using Jinja2 filters to accurately measure list lengths in playbooks. find("logstash_config_filter_roletype_validation") != -1 I know I can use the loop module to loop through the files, but I do not know how to form the list which contains just file-names, so I can use it later. windows. 0. How to understand why 2nd overtone with shorter wave length than 1st overtone has lower frequency I want to compare two lists - one with all available options, and the second one is with specific options to be selected. ') | list | length > 0 Share. In your condition then simply check the length of that resulting list: tasks I have playbook to list log files which are older than 30 days. In my example I'd use with_items: nginx_auth and then access as {{item. You're explicitly not doing this on any other hosts in the play. To use it in a playbook, specify: community. These lists were created with read_csv and have keys and value When trying to iterate over this data from an ansible debug output I'm only able to iterate over the first element of the index which is zero 0. This is a typical case of wrong data structure. 45. Gilles Cornu posted a template trick to list all variables for a specific host. ansible-lint is giving errors because of line-length and I would like it to ignore the line-length. 6 and I am using Ansible 2. Also, in the same directory level as the inventory file, Forgive the possible duplicate, but I also asked this question here, but asking on SO for increased visibility. For comparing the 'new' package to the currently-installed one: I am using a trick with Note. Top I'm running Ansible 2. Let's say you are using vars to create an list of fruit. 18 becomes 018. stdout_lines | length == 0) then it should deploy all of the deployments defined in the loop. exists }}" returns TASK [test] ***** Skip to main content. 22 python-dateutil 2. this is why we pass it to first before length. I assume that list will be in var yum_rpm. I have the following code that creates a list dynamically that I can then later use in a template. My code so far: - name: check for updates hosts: localhost gather_f The length of a list refers to the number of elements in the list. How do I specify a regex to search for the string name: bob - note that this should not match with name: bobby. Members Online cannetnerd やりたかったことAnsibleを用いて定義したリスト変数（配列変数）をPlaybook実行時にリスト変数内の値ごとにループ処理を行いたかった。リスト変数で定義した複数の名前に対して複数ディレクトリ To check whether it is installed, run ansible-galaxy collection list. Below is a sample of the output coming out of ansible and below the output is the ansible tasks I'm working with. "a_list length: {{ a_list | length }}", "a_dict length: {{ a_dict | length }}" And the result: "msg": [ "a_string length: 8", "a_list length: 3", "a_dict length: 2" So, how can we confirm that this is, in fact, a list before we want to check the number of elements? Like this: {{ my_value | length }} list | length filter returns the number of elements. There are several methods to determine the length of a list in Python. First you will need to get an actual list of all packages you want to see installed on your final machine, including the default ones that come with the system. In most cases, you can use the short plugin name sequence. I’m struggling on how to get the count of subnets and looping over it to set the “efs_targets” fact properly to send to the efs module ` Tests can also be used in list processing filters, like map() and select() to choose items in the list. fortimanager . fmgr_waf_profile_constraint_paramlength . 1,743 2 2 gold badges 15 15 silver badges 25 25 bronze badges. and thus need a terminating operation, either first or list or length to cause them to actually do work. Using with_items is actually calling the corresponding lookup plugin. " in l for l in yum_sec_upd 'Sec. For example, the capitalize filter capitalizes any value passed to it; the to_yaml and to_json filters change the format of your variable values. e. items for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same I am new to ansible, trying to achieve following: Store the output in an array,and iterate over the array " COUNT" times, where count is total number of elements minus one in the array/list. stdout 'Sec. 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). In most cases, you can use the short plugin name items. Synopsis. 04 Xenial. 2. Promise Preston. With your example I don't see any natural way to iterate over your value-list within the context where with_items would be used. For Centos 6. yml --list-hosts mygroup Will output something like: hosts (2): myhostname1 myhostname2 Example of a complete playbook for testing - hosts: localhost vars: interfaces: Vlan5: ipv4: 10. Lists in Ansible are defined using YAML syntax, which is a human-readable data serialization format. Add a comment | Your Note. See Ansible collect df output and convert to dictionary from set_fact how to parse the output of df. 35. dict . How to apply jinja2 filter to ansible list items? 3. answered Feb 1, 2017 at 21:56. It is to store a group of Ansible - Return the number of items in a variable or list using length by Jeremy Canfield | Updated: September 23 2024 | Ansible articles. then if the keyword "n1" is in that list, add to the final_var. This will depending on the list length. asked Apr 20, 2020 at 14:10. To check whether it is installed, run ansible-galaxy collection list. if we assumed that input is coming as my_list and that you are trying to extract first column from all rows, this should give what you want. But for just a few items, I'd still generally write it this way for the sake of most Ansible devs being the most comfortable with it. The last filter can be used to return the last element in an list. Ansible: How to compare two In this article, we are going to learn about Ansible List. Ansible list a directories files (ansible 2. 821 9 9 silver badges 17 17 bronze badges. Ansible 2. To use it in a playbook, specify: ansible. In this article, we’ll explore different methods to find the length of a list. To remove items from a list in Ansible that contain a specific substring, you can use a combination of the reject filter and the search test in Jinja2. The first issue I chose to ignore because, though your question lead to believe array1 and array2 to be interchangeable, I am assuming they are in fact not, within a given context. Use the ansible. size-name: Convert first system disk into various formats debug: There's a lot going on in your code, and achieving the result you want is simpler than you've made it. So, again as you've found, {{products|count}} (or equivalently {{products|length}}) in your template will give the "number of products" ("length of list") In Ansible, a list refers to an ordered collection of items, much like an array or a list in other programming languages. In this scenario we want to make compare 2 lists and make sure that the target list’s length is equal to the source list’s length:-hosts: docker-server vars: source_list: If there is no match (meaning the current ansible_hostname is not in our list_of_exempt_hostnames), I feel like some of Ansible's special variables would be of use here, especially the groups hash- which contains all of the groups and hosts in your inventory. jinja2's builtin filters are documented here; and specifically, as you've already found, length (and its synonym count) is documented to: Return the number of items of a sequence or mapping. Follow answered Sep 28, 2022 at 7:51. See more linked questions. Ansible iterate over array and use filter. assert module – Asserts given expressions are true; Jinja2 Template Designer Documentation - List of Builtin Filters; jinja-filters. Like all templating, tests always execute on the Ansible control node, not on the target of a task, as they test local data. 4 jmespath 1. Plus, maybe his syntactical purity idea was still valid in 2014, but by now Ansible has become such a convoluted mess (precisely because he doesn't want it to be a programming language, so you end up needing all kinds of non I'm trying to get the number of hosts of a certain group. This results in a list of (grouper, list) namedtuples, where list contains all dictionaries where the selected attribute equals grouper. I want to sort by alphabetical order and length. fortimanager. utils 1. Ansible: pretty-print elements of a list. Filter Jinja list by key existence. How to loop dictionary with nested dictionaries. I have a list of strings called somelist as shown below. techraf techraf. index_of. Skip to main content. I've looked at many examples but Building up on @gary lopez answer to add security and performance. I'm able to find the total size of all the three files in variable totalsize on a single host as shown below. yml" with_items: - "{{ I try to check a triple condition within a when statement, like this: # Run only on the last of the oct_servers (once all the others have been launched) and only when there are at least 2 servers Note. length; Follow Ups. I then try to build the list with the following. This will output the value of the element at index 1 in the list, which is item2. A better data structure is a dictionary. env list to get a list of names each element in the mylst contains. yml - name: "Play 1" hosts: "destnode" gather_facts: false tasks: - name: Fail if file size is greater than 2GB include_tasks: "{{ playbook_dir }}/checkfilesize. Improve this I have a list of hosts in Ansible, which will always have minimum three elements: [server] apollo boreas cerus Using a fact similar to: - name: Set loadbalancer hosts fact ansible. com - name: bar. It’s a slippery fish, but once you get the hang of it, you won’t miss it. --- - hos First, let's look at your problem. When the size value is bigger than the current file size, bytes from source (if sparse is not false) Ansible Tower Survey Textarea To List I was recently leading an Ansible workshop when someone asked me if you could accept input from a survey in an ansible and use that as a list in a playbook. test test123 test12 test5 test1234test test22te And I need it to take in account the numbers as whole not as individual so test12 is under test5 and so on. my_list | length applies the length filter to my_list, which will return the number of elements in the list. hope it helps. Jinja2 filters let you transform the value of a variable within a template expression. Concatenates the lists csdr_foo_und and csdr_foo_baz I have an Ansible inventory file, with a group that contains roughly 20 children groups. The community. 1 cryptography 43. how to run nested for loop on list in ansible. You need to set the disks as a list of elements and append to that list the current item. search_list: "{{ main_var3 | selectattr('a', 'equalto', 1) | list }}" It turns into a list. To use it in a playbook, specify: fortinet. Lists in Ansible can contain various types of data, such as strings, numbers, booleans, and even other complex data structures like dictionar For Red Hat Ansible Automation Platform subscriptions, see Life Cycle for version details. How would I solve this? Share Sort by: Best. 3 Jinja2 3. Follow edited Feb 1, 2017 at 23:12. I want a list of boolean values, corresponding to whether or not a file exists. key. Follow answered Apr 20, Note. 230. SmartTom. --- - name: main Greetings, I’d like to take a list (of varying size) and split it into a list of lists, where each sub-list is at most N elements. utils. stat. In I would like to achieve something like this with ansible - debug: msg: "{{ item }}" with_items: - "0" - "1" But to be generated from a range(2) instead of having hardcoded the itera I understand that yamllint and ansible-lint provide warnings when the line-length is over the max threshold, which for yamllint seems to be a default of 80. sh {{ input }} register: result - name: Print the output debug: var=result. My playbook is called by specifying --extra-vars "userids=123456,654321". size how to get output in required format MB or GB and debug msg when it's I have a list of list like : [[elem0, elem1, elem2], [elem3, elem4, elem5], [elem6, elem7, elem8], ] I wrote the follow template file : {% for result in results The idea is to add an item into the array if the item does not exist. ansible; list-comparison; Share. - item2. Once you have that, the next step is to get the list of currently installed packages on the machine. 16. 2 resolvelib 1. I’m not certain where to start on this one. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. post0 PyYAML 6. iabpy smef trzcd oko fizhq wrcgg stsap eqnjv ozmz ivgk