Ansible access nested variables. Members Online • netspazz .
Ansible access nested variables. My structure is like: hosts.
Ansible access nested variables For example, I had an ansible role. How can I use nested variables in ansible to dynamically set the hostgroup the playbook runs on? 3. Example below with your original sample data Here is my problem I need to get a dict value from key. It is no out-of-the-box ansible nested variable lookup refactoring. Ansible : Loop inside loop. Ansible, with_nested, How to asign dynamic variables in loop. I'm not sure if it's needed because I can access the storage moved variable, but I'm not sure how to access the variables inside {{ hostvars[host]['storage_moved'] }}. Unmaintained Ansible versions can contain unfixed security vulnerabilities (CVE). Using Ansible, how can I take actions on each file in a specific location? 9. To include the file, a host must be a member of all groups in the filename. Also important is hostvars. Ansible sets the loop variable item for each loop. Viewed 328 times 2 . You can create such a framework on your own. Migrating from with_X to loop. How to get a value from a list using ansible. macaddress }} {{ ansible_{{ net2 }}. How to read environment from a file. Usually + works but ~ is safer. How to use variables in Ansible template It is not possible, because the module is executed remotely and all the variables are not available unless explicitly passed. For example, to reference an IP address from your facts using the bracket notation: Doesn't ansible supports variable expansion/evaluation if a variable contains another variable (especially when I'm using a loop). So accessing them like domains. This means that the data held within the variables value should be treated as unsafe preventing unsafe character substitution and information disclosure. subelements for easy linking to the plugin documentation and to avoid conflicting with other collections that I think you can not access variables of any group directly, but you can access the groups hosts and from the hosts you can access the variables. community. Hot Network Questions The best way to handle exceptions? Biographies of the Matriarchs How much water should there be in Jet fuel for it to be considered as water contaminated fuel? A program to solve quadratic equations If I don't use the variable 'item' in the square brackets, but instead specify a specific host from the inventory, Ansible is able to get the ipv4 address. Ansible fetch value from dict. However, if I had to do a lot of merging, or a very hairy merge, a plugin would probably be a lot more efficient, especially considering I could break into real Python code to do the work (less annoying than working with the Python-in If you set the env variable to contain a value of dev on the command line . I just dont want to expand my simple loop task into 3 different -name tasks for downloading zip files for jmeterplugins_extras, jmeterplugins_standard and jmeterplugins_webdriver separately. Try: var: list_matched. Ask Question Asked 7 years, 1 month ago. I want to pass the values of repositories as a variable to look through the secrets but keep getting errors. Ask Question Asked 4 years, 2 months ago. Ansible set_fact Nested Variables in Playboook. 2: 0: ahh yes I should have seen you just wanted a nested var, just an FYI ~ is similar to + but coerces the variable to a string so you don’t have to do that yourself. Accessing nested results of an Ansible command result in a list. It then registers a variable with the contents of any files that were found. Is there a way to access a dictionary using another variable as key? (Using YAML and ansible) ansible; yaml; Share. ansible jinja2: nested dictionary. I'll try to update the answer While there is no group_name variable in ansible, there is a group_names (plural). How to loop over a dictionary in Ansible. yml: php_fpm_pools: - name: www user: php-fpm In the playbook, I want to overwrite the user default value, and I tried the following Get early access and see previews of new features. Ask Question Asked 3 years, 11 months ago. 30 Port: 22 19 Referencing nested variables Many registered variables (and facts) are nested YAML or JSON data structures. Ansible - hostvars from single host. Hot Network Questions Is it possible to know where the Sun is just by looking at the Moon? Improving MILP formulation (profitability based network design) Estimating an upper bound of hyperbolicity constants in Gromov-hyperbolic groups Ansible provides an internal data type for declaring variable values as “unsafe”. frontend. The variable cannot be re-structured since it's being used by another ansible-module I do not maintain--- vm_specs: "{{ hostname }}": dns1: 1. Get early access and see previews of new features. Ansible Host Variable. So, long story short, if I could access the ansible_devices fact directly in my module then I could avoid a little busy work and work on systems with older Python installs. This magic variable is used to access information about other hosts. They are very similar to variables in programming languages, helping you manage complex tasks more efficiently by allowing the same playbook or role to be applied across different environments, systems, or contexts Get early access and see previews of new features. You can chain dot notation to access variables nested at any depth: {{ companies. Also, {{}} can not be used in conditionals like A Subreddit dedicated to fostering communication in the Ansible Community, includes Ansible, AWX, Ansible Tower, Ansible Galaxy, ansible-lint, Molecule, etc. database. Accessing values from these nested structures requires specific syntax, either using bracket Let's say you are creating variables using the vars plugin. 2. are made available as nested data structures. Hot Network Questions Heaven and earth have not passed away, so how are Christians no longer under the law, but under grace? What movie has a small town invaded by spiked metal balls? Accessing nested variable variables in Ansible; Ansible set_fact nested variables in playboook; Documentation. Viewed 75 times 1 I am trying to fetch the values of the alerts one by one from the file below, to perform certain operations. Both to show them or use them in conditionals. e. Ansible iterate over array and use filter. From the resulting list we can use another map to access the inventory variable that we're interested in. That is because any host may be part of one or more groups. Viewed 6k times 0 . cat play. If you‘re not leveraging nesting, you‘re missing out on a key capability for managing complex configs. Naming and grouping nested random effect variables How safe are password generator sites for htaccess Is it possible to shrink back a GoPro battery? I tried with_nested and got similiar weird results with complicated item. 20: DestIP: 192. answered Jan 9 I am trying to shrink several chunks of similar code which looks like: - multiple things is going here register: list_register - name: Generating list set_fact: my_list="{{ list_register. Passing How do I use nested variables of an item within the jinja templates? I am running ansible to produce configs for network switches. Ansible and nested variables in loops. Ansible group variable undefined Note. path Usually, yes; it's another dependency that needs installation, and for most of the use cases I've had, it's only marginally nicer to use. x: Unfortunately the template module does not support passing variables to it, which can be used inside the template. reading json like variable in ansible accessing key within list of nested dictionaries. 0 – Get early access and see previews of new features. Ansible Nested variables and Jinja2 templates. There was a feature request but it was rejected. This Get early access and see previews of new features. For example: Ansible separates variables from tasks, keeping your playbooks from turning into arbitrary code with nested conditionals. This next block is used to display the contents of the registered variable. For example, to reference an IP address from your facts using the bracket notation: Access to YAML file based nested variables in Ansible. ansible set variable for another host. 4. I know we can't do nested variables, but I'm just stuck. In most cases, you can use the short plugin name subelements. Accessing a dictionary using another variable as key YAML. Ansible FAQ: When should I use {{ }}? How to interpolate variables or dynamic variable names? Share. item. X. Register Variables in Loop in an Ansible Playbook. dependent lookup – Composes a list with nested elements of other lists or dicts which can depend on previous loop variables Note This lookup plugin is part of the community. Given the playbook: - hosts: core_01,core_02 ## I am limiting myslef to two hosts here, Accessing nested variables in Ansible. Follow edited May 21, 2021 at 19:03. Ansible applies this undocumented (but consistant) and crappy translation (ansible's equivalent of shell variable expantion) to most (not all) YAML values (everything RHS of ':') in the playbook. 1): How to Get Values from a Nested Ansible Dictionary. I’ll try to explain this concisely. This recursion continues to happen a few layers deeper. inclue_tasks would solve this, since I could combine the IDs and interfaces into a temporary list variable in the inner loop in one shot, with something like this: - name: Initialize an empty list set_fact: interfaces_combined: [] - name: Combine interface prefixes with VRF IDs set_fact: interfaces_combined: "{{ interfaces_combined + [ item I can access that variable fine, until I make the request inside a role. I know that the nested {{}} notation is not possible. foo }}" Something like this will be returned. stminion001 How can I access variables from within an ansible module? 4. How to access group variables from inventory file inside ansible yaml. name. Or you could just the ansible facts variables. Modified 3 months ago. Have a look at the examples for find in the Ansible docs. If you have one variable value that includes another variable value, you Ansible accessing Nested Variables. Merging nested variables from group_vars in Ansible [duplicate] It looks like Ansible is not able to merge nested variables from group_vars. apps. builtin. Working solutions would be using the set_fact module (double lines of code, not really smart) or including different variable files, depending on app_env. In vars/main. The command returns some value that I want to use in next play. Nested variables take Ansible‘s variables to the next level by allowing hierarchical variable definitions. How to put variable in variable in Ansible? 0. erpworks like a charm. The magic var you're looking for is groups. For example, to reference an IP address from your facts using the bracket notation: The first Task run fine, but the second one is failing. So something like this would return the name of the first host in the web_servers group: {{ groups['web_servers'][0] }} To access the individual variables of a host you would do something like this: To access a host variable I tried: "{{ hostvars[tests]. Note. Modified 1 year, Accessing ansible host_vars with variable name. Improve this question. This playbook demonstrates what I have tried (Ansible 2. ansible changing nested dict variable. Let's clarify. ‘inventory_hostname’ is a magic variable that indicates the current host you are looping over in the host loop. It is some combination putting these strings through Jinja2-engine, Python-interpreter and ansible-engine in some unknown order. I wanted to show off how well this works on a REST API. jwt }} - name: Login and get JWT session uri: url: "{{ url }}/users/login" body_format: json body: Referencing nested variables Many registered variables (and facts) are nested YAML or JSON data structures. Modified 3 years, 8 months ago. The value for path is merged by << or merge operator. A bit of documentation:. yml --list-hosts cluster_one, I get: hosts (9): host1 host2 host3 host11 host12 host13 host4 host5 host6 Ansible nested group_vars (use only if member in group A and B) 0. Ansible variables. The answer came from @matt-p in the comments - use set_fact. 2 with the following config files: file hosts: [group1] host1 host2 host3 [group2] hostA file host_vars/host{N} (where N is the number for each host on group1): variable: - { line: "keyB" , file: "keyc"} - { line: "key2" , file: "key3"} Default groups . 22 192. I have the following data inside of Ansible variable server_info, set via register at the end of a task; ok: [server123] => { "msg": { "changed": false, & Get early access and see previews of new features. 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: I'm using the loop in a template in Ansible. Register the variable: Get early access and see previews of new features. How can I make Ansible interpret a variable inside a variable? 1. It just overwrites the whole ansible_local hash. user: force: yes vars: my_users: - name: foo state: absent - name: bar In the task, by ansible changing nested dict variable. Follow edited Jan 12, 2023 at 16:39. 5. Modified 4 years, 3 months ago. tasks: - debug: msg: "{{ env. . The keys have dots in their names and you cannot "statically" create dynamic key names as you tried above (i. Ansible loop over variables. with_nested. So for example if I run ansible -i example. ansible_default_ipv4. After deployment of a VM with a DHCP IP I would like to get the IP and append it to the guests dictionary. For example, you could write: - name: Test Sharing Role Variables hosts: "{{ host_group }}" tasks: - import_role: name: role-one when: inventory_hostname == "one" - import_role: name: role-two when: The debug module can be used to print the value of the "fruit" variable. Viewed 287 times 1 . ansible - can't access item in nested list. Also, {{}} can not be used in conditionals like Referencing nested variables ¶ Many registered variables (and facts) are nested YAML or JSON data structures. Ask Question Asked 2 years, 9 months ago. Ansible and Jinja2 variables combination. Referencing nested variables Many registered variables (and facts) are nested YAML or JSON data structures. Notice how we can later access keys from the returned JSON with a simple {{ user. But it is not recommended to do this since pretty much all roles you find on Ansible Galaxy do expect the default value replace and might run crazy. Nested variables can be created like this. You just need to reorganize them a bit Get early access and see previews of new features. The ungrouped group contains all hosts that don’t have You need to keep in mind that in Ansible, the variable foo assigned to the host localhost is distinct from the variable foo assigned to the host main or any other host. The example use case will be for a collection of vmware related roles that do operational tasks like creating vm’s from a template. Ansible - get nested variable using hostname. Ask Question Asked 3 years, 1 month ago. find: path: "/home/svc The vars lookup plugin can be used to access the nested variables. Ansible: How can I access a variable of other host? 1. I want to retrieve the key of "tls_cert_file" from followingemphasized text variables: Ansible list of dicts - accessing keys after a list filter. September 9, 2022. Hot Network Questions Does light travel in a straight line? If so, does this contradict the fact that light is a Referencing nested variables Many registered variables (and facts) are nested YAML or JSON data structures. Dot Notation. hosts: localhost; vars: Any idea how I can have nested variables in ansible when statements. Or like this, using Jinja2 syntax, delimiting each key with a period. results then I will get a list of dictionaries and each of these dictionaries will have another list of files kept in files section. Hot Network Questions Is it possible to generate power with an induction motor, at lower than normal RPMs, via capacitor bank or other means? You can access the string contents of the registered variable using variable. The collection has multiple roles, eg: (provision_vm, create_template_from_vm, etc). In the most common case each host would only be part of one group and so you could simply say group_names[0] Get early access and see previews of new features. ipv4. In most cases, you can use the short plugin name vars. debug: var: food The following block of code is used to get a list of files from a directory. The issue I'm having right now is with nested loop and registered find_logs variable which holds list of dictionaries in results key. Ansible use variable inside a variable. Ask Question Asked 4 years, 3 months ago. Modified 7 years, 8 months ago. 1 dns2: 2. In Ansible, we can define variables when running our playbook by passing variables at the command line using the --extra-vars (or -e) argument. How to access nested variable dynamically in jinja2 template. Learn more about Labs There are two ways to make a nested (double) loop in Ansible. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. Ask Question Asked 6 years, 4 months ago. How can I use Ansible nested variable? 0. Environment variables from external file in Ansible. In a Jinja2 format template I need the There are no "nested variables" in your example. address }}” However, this does not work. 1: 0: December 17, 2014 Note. 0. Then, you just have to loop on the interfaces variable of all hosts. Hot Network Questions Why are the walls of a spacecraft usually so thin? Longest bitonic subarray What is the most probable cause of black streaks on broccoli? What does “going off” mean in "Going off the age of the I have a problem with implementing Ansible nested reference YAML variable file. Extracting items from a list nested within another list. Example in a task: - debug: msg: How do I use environment variables in an So in the associated playbook, I need to do something akin to: “mkdir -p /{{ item }}/data_brick” For each item under the second-level item, which happens to be the {{ But I’m not able to access nested data structure from variables in the when statement. See hash_behaviour in the docs. If you look carefully at the example, you'll see that under users, you have several dicts. Members Online • netspazz . But if you want to hardcode it you can use Thanks, but it didn't work. Hot Network Questions Both of NASA's ARED devices have a sign with the acronym "PLEASE;" what does it stand for? If the moon was covered in blood, would it achieve the visual effect of deep red moonlight under a full moon? What is the smallest size for a heavy stable galaxy? To merge dicts, you need to set hash_behaviour=merge in your ansible. Ansible merges different variables set in inventory so that more specific settings override more generic settings. Hi everyone, I have many groups in my inventory like this: [website-front-lb] 192. foo nested variable using the debug module. if it helps, the playbook I'm writing doesn't need to work with multiple hosts at once. Here’s how we get an IP address: hostvars lets you access variables for another host, including facts that have been gathered about that host Get early access and see previews of new features. 2: 0: October 21, 2013 As soon as you delegate the task back to your local, then you don't need to loop on the groups['all'] anymore, and you can let Ansible do the normal process of targeting all the hosts defined in the hosts directive. Even if you do not define any groups in your inventory file, Ansible creates two default groups: all and ungrouped. hostvars is a hash with inventory hostnames as keys. There is only one variable archiver_config which is a dictionary (hash). Registering multiple variables in a loop. 3 [proj1-subproj1-lb] 192. this is how I actually was able to access the nested dictionary. yml depth 2: group bots-b, bots-b. . 8. 1. Hi Emmanuel, vars: parent: child1: true I'm writing an Ansible Playbook and am trying to access a nested variable inside a referenced hash. outer Get early access and see previews of new features. Ask Question Asked 1 year, 6 months ago. The include statement supports passing variables. I’m trying to use ansible to generate a file using nested templates, and I’m running into issues with having the variables available to me in the nested templates. ansible looping from API using with_nested. yml. email }} and use the JWT token with headers: jwt={{ user. - name: output the nested 'food. Jinja nested template inside variable in template. Ansible offers simple syntax to traverse nested variable hierarchies for accessing sub-values. Ansible - grab a key from a dictionary (but not in a loop) There is an open bracket "[" after "files:" so you need to go that position on the array before going to path. 7. ansible. Viewed 175 times 0 . item chains (maybe indices in between) before opening the issue. For example, a variable that is lower in the list Referencing nested variables Many registered variables (and facts) are nested YAML or JSON data structures. You can check out these threads for more information: thread1, thread2 Also as @VladimirBotka pointed out you can expose them with using public: true parameter with include_role. So you could have your template task inside an extra file and include it twice with Get early access and see previews of new features. Referencing dictionary values. Conditionally define variable in Ansible. Nested variable in Ansible. Ansible Tower: How to pass job number into playbook? 1. with_list. Jinja2 - create a dynamic variable using value of variable as part of the key of another variable. including nested variables. url }}" which outputs something like Here, app1 and app2 share the values for opts and port using the anchor &jvm_opts and the alias *jvm_opts. ['data_base_host'] }}" All of them are wrong!!! Can anyone help me find out the best practice to access hosts and variables, not from a playbook but from a variables file? EDIT: Ok. 7: 0: February 19, 2014 Another variable within a variable for jinja templates. To access variables from an arbitrary group you'd use the global variable groups which gives you access to all the vars of the hosts in the group. acme. Ansible has 3 main scopes: Global: this is set by config, environment variables and the command line Play: each play and contained structures, vars entries, include_vars, role defaults and vars. we have to create or use nested variable structures. 1, Python 2. address }} One of my ansible play is using a shell module to create a vault token. Dot notation walks down the In Ansible, many variables and facts are organized in nested YAML or JSON data structures. Ansible Project. In your case, you have two dicts but with just one key (alice, or telephone) with respective values of "Alice", 123. 3. Problem: Use a host declared in the inventory file in a variable file, let's say: group_vars/all. vars for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same If you set the env variable to contain a value of dev on the command line . But I really would like to know if there's a notation to access nested variable variables ;) Referencing nested variables Many registered variables (and facts) are nested YAML or JSON data structures. How to put variable in variable in Ansible? 2. Variables declared in roles are scoped to the play. 25. I once had a similar problem and wrote an action plugin to solve it: include_vars_merged. Include. 33 etc. The playbook looks like this at the moment:-name: some deployment docker: [. These are not hostvars. Assign variable by referencing another. Here is a minimal sample to demonstrate the issue. Here is my vars file: SourceIPs: 192. 2: 0: June 15, 2016 Ansible : Accessing a variable containing a : Ansible Project. files[0]. conf” how do I access this? The period is seen as the next level in the According to documentation, manager_attributes should be a dict of key/value pairs to set on your device. Failure message: TASK [call 60 env FEX 141 uplink port from group_vars] ***** fatal: [S70G1MS001]: FAILED! => {"msg": "The task includes an option with an undefined variable. yml, I defined vars as below: --- location: "USA" source: Hey I'm wondering how I should point to variables nested like shown below. So variables you define for each play don't know nested – composes a list with nested elements of other lists with nested elements of other lists; Edit on GitHub; For community users, you are reading an unmaintained version of the Ansible documentation. Ask Question Asked 5 years, Nested variable in Ansible. What is the best way to update the database name? I tried the set_fact module but could not get it to update the nested variable correctly. 2 For Ansible 1. 0). outer perform loop over a list, and inner perform a loop over item (loop variable) of the outer loop. Modified 6 years, 4 months ago. Share. In this example, the root key (dev) is accessed. vendor. Jinja2 nested varibles. What you are looking for is the zip filter which will allow you to assemble several lists in a single one joining all items of same index together in a list. – A Subreddit dedicated to fostering communication in the Ansible Community, includes Ansible, AWX, Ansible Tower, Ansible Galaxy, ansible-lint, Molecule, etc. localhost module_defaults: ansible. For example, in a separate role in the same run, I want to access that registered variable: This was written referring to Ansible 1. Example of user dictionary file variable: User dictionary file variable, dev_infra_bastion_0_example_com is node FQDN name If you want to access a variable from a variable, you need to either use the vars lookup. The problem is working with a list of nested lists and i realized that ansible does not really support nested lists but just has a few implementations for the most common nesting (two layers, using hashes, ) but no support for arbitrary nesting. It allows you to have an inner iteration for object you iterate in the outer loop. How to use nested variables (dictionary keys) in Ansible? 9. You cannot access values from these nested data structures with the simple When leveraged judiciously, nested variables make Ansible‘s "infrastructure as code" shine through declarative self-documenting playbooks. Modified 2 years, 9 months ago. For example, to reference an IP address from your facts using the bracket notation: Get early access and see previews of new features. This was very confusing to understand for me at first. ansible; jmespath; Share. How to access nested variable with period in name? If I have a variable name “name. It is described in the official documentation as. So looping over all groups and then only picking the first host of each group should do it. Nested loops - access property: the key item should point to a dictionary. yml (missing here, ignoring) depth 1: group bots, bots. Ansible | Access multi dimensional variable for when conditional in nested loop task. Jinja dynamically nested variables. You can checkout ansible documentation for nested variable loops here. yml like the following: and template the variable: - ansible. You'd rather do : I'm having problems with a nested loop on ansible. If you have one variable value that includes another variable value, you can define them separately: How to get mix of nested variables in a template from facts and user variables? Exactly I need that for example: {{ ansible_{{ net1 }}. For example, to reference an IP address from your facts using the bracket notation: Ansible looping over nested variables. Until and loop. yml gather_facts: no tasks It uses the inventory names listed in groups variable to access the hostvars variable (with the inventory names as indices). How to reference a variable using the builtin vars plugin? Hot Network Questions Why doesn't a metal disk expand in all directions when heated? Writing ESRI File Geodatabase text fields with fixed length using Python Why is the novel called David Copperfield? {{ hostvars[inventory_hostname]['ansible_' + which_interface]['ipv4']['address'] }} The trick about going through hostvars is necessary because it’s a dictionary of the entire namespace of variables. general collection (version 10. I have been playing with the looku Ansible accessing Nested Variables. fruit . vars for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same I try to use a conditional when inside a task with a nested loop. Add the search word slack directly When map'ing a attribute in a list of nested variables, I am not able to retrieve its key. Hot Network Questions Is Misrepresenting Cohort Differences Research Misconduct? F# railway style vs lazy seq Reducing 6V to 3V Accessing ansible host_vars with variable name. I can think of two workarounds: 1. To access fields of each host, use hostvars['test-1'], hostvars['test2-1'], How to work with Ansible variables in playbooks, inventories & command line, and where to set them. This means the inner, nested loop will overwrite the value of Need help understanding how to access nested elements. Ansible - How to set a var with a loop. Ansible nested loop. Example ('server' is the name of a host from my inventory): {{ hostvars['server']. Using the find module twice in a row does not make sense. yml:--- - name: Loop using with_subelements hosts: localhost connection: local vars_files: - vars. 168. Stacking loops via include_tasks. I had the same question a while ago and Pruce P offered an interesting workaround in his answer. For example, to access the value of the HOME environment variable on management machine:` Now, if you need to access it in the remote machine you can just run your ansible script locally in the remote machine. For example, create the files below. yml --extra-vars "env=dev" And attempt to print the env. In this example, group variables for host bot2 will be populated in the following order: depth 0: group all, all. Thanks. Modified 1 year, 11 months ago. port }} Dot notation is Referencing nested variables Many registered variables (and facts) are nested YAML or JSON data structures. I registered the command output in vault_output parameter. I've been working on this problem for a while and can't find a solution. Accessing nested variable variables in Ansible. Modified 3 years, 11 months ago. Create Local File With Ansible Template From Variables. environment. Ask Question Asked 1 year, 11 months ago. Ansible uses variables to help deal with differences between systems. Ask Question Asked 9 years, 6 months ago. Passing variables between nested playbooks. ini: [common:children] frontend backend [frontend] server1 [backend] server2 These are made available as variables like ansible_local. Roles are not expose default variables by default to the playbook. Ansible Get dict value from key. Though I had another idea in the meantime, but this is only theoretical and never tested: Beside normal modules, Ansible has a special kind of module: action plugins. Viewed 2k times 1 . stdout. I thought that was the correct syntax to access nested data from a vars file. Now I want to access members of a specific group in my playbook. Follow edited Jan 9, 2022 at 13:00. Improve this answer. Let‘s dive deep into best Accessing Nested Variable Values. Obviously, if I do: Ansible seems quite complicated with nested lists, Ansible variables are dynamic values used within Ansible playbooks and roles to enable customization, flexibility, and reusability of configurations. Ask Question Asked 1 year, 10 months ago. For the first VM (testvm2) the Basically, if you just need to access existing variables, use the ‘env’ lookup plugin. ansible with dictionary based defaults variables. cfg. For example, as per the output I posted, I would like to access cmd which is a variable inside the {{ hostvars[host]['storage_moved'] }} loop. However, this is made up of other variables, {{ c }} and {{ d }} earlier on in the group_vars file. This gives us variables ansible_lo, Resolve nested variable in template. fruit' variable debug: msg: "{{ Accessing nested variables in Ansible. Imagine I have a YAML configuration file config. answered Apr The nested lookup does not accomplish what your are expecting: it creates a loop on first element with a sub-loop on second element and a sub-sub-loop on third element, etc. Ask Question Asked 3 years, 8 months ago. Ansible: I have an Ansible template for a complex environment which has a variable: {{ a }} which has a value defined in defaults/main. You cannot access values from these nested data structures with the simple {{foo}} syntax. Anchors and aliases also let you share complex sets of variable values, including nested variables. You can see details and processing order here in the source code. To access them a simple {{foo}} is not sufficient, but it is still easy to do. How to get the values on nested variables in ansible. Loop through a list of dicts containing list in Ansible? Hot Network Questions How to understand structure of sentences in probability Using with_subelements:. If I do find_logs. Viewed 1k times 1 . jinja2 variable inside a variable. Specifically first of all I want to read different states per user, register the variable after that and want to iterate over this variable in another task. "prefix{{ dynamic_value }}suffix": "some content" does not work as you experienced by yourself since the key name does not go through jinja2 Ansible accessing Nested Variables. Ask Question Asked 10 years, 2 months ago. Host: variables directly associated to a host, like inventory, facts or registered task outputs. - debug: msg: "{{ lookup('vars', dev) }}" Referencing nested variables: Nested variables can be accessed using dot notation or bracket notation. ansible: accessing register variables from other plays within same I have some nested default variables in my /defaults/main. If you want to access a variable from role-one in role-two, they would both need to be in the same play. 2: 1: December 2, 2014 Looping over nested inventory items with conditional. - name: "Print the variable" debug: var=home_files. Follow Ansible: using nested groups with vars. My answer is best for when you have many Java versions but don't use the variables frequently. Bellow are some ways to pass variables to an Ansible playbook in the command line: Method 1: key=value format ansible-playbook site. ] name: "{{ name }}" [. I'm using this kind of ansible lookup, in order to load the content of a file into a variable : You're already in a Jinja expression so you just access variables by name without wrapping them in more Ansible | Access multi dimensional variable for when conditional in nested loop task. variable access in a template being looped using with_items. But I can't get ansible to loop over these. Default variables are totally fine in Ansible. Thanks The environment variables are choosen during runtime, so it is not possible to define them directly in the supplied extra vars. Modified 8 years, (in a template file). Ansible Tower Workflow Job Template. address }}”. This lookup plugin is part of ansible-core and included in all Ansible installations. Nested Loops. yml --extra-vars "arg1=demo1 arg2=demo2" Method 2: JSON string format Get early access and see previews of new features. You cannot assign a value to a dictionary key in the inventory file. For example, to reference an IP address from your facts using the bracket notation: Accessing the name of your loop_var. Iterate over nested loops. --- - hosts: localhost connection: local gather_facts: False tasks: - name: set_variables set Host and/or inventory variables override role defaults, but explicit includes such as the vars directory or an include_vars task override inventory variables. 0, so bear that in mind. I'm trying to use getent to lookup a user's home directory and then apply that information to a copy job. Hot Network Questions If my mount were to attune to a headband of intellect, could I teach it common (to full understand and work with me as an Intelligent creature)? Bruce P's answer is an option best for when you have few different Java versions and use the variables frequently. --- - hosts: all vars: food: fruit: apple veggy: onion tasks: - ansible. I want to deploy sensitive data using ansible-vault. 7. Each role needs auth parameters I have a requirement to get values from some nested variables based on the current host inventory_hostname. general. The all group contains every host. jinja2 ansible - Get early access and see previews of new features. Ask Question Asked 9 years, Source: Register variables in with_items loop in Ansible playbook. Viewed 6k times Ansible nested variables in template. This is overridden by a variable, {{ b }}, in a group_vars file. However, if I had to do a lot of merging, or a very hairy merge, a plugin would probably be a lot more efficient, especially considering I could break into real Python code to do the work (less annoying than working with the Python-in My ansible file and inventory file in same folder, could anyone help me to rectify what I am missing to access the variable from inventory file? ansible; ansible-inventory; Share. yml, use it as a value for the key (now, this can be called a nested variable): Hi everyone, I have many groups in my inventory like this: [website-front-lb] 192. How to nest variable in ansible with for. I’m looking for guidance, pros, cons, etc. Accessing group variable in template file of role belonging to another group. I'm using ansible 2. flat variables for a collection / roles. For example, facts are nested data Is there a way to build a nested set of loops to do this? The with_nested construct applies every attribute to every device; I need only a single attribute per device per call. ] env: "{{ env }}" Since env is a nested dictionary we need to supply the --extra-vars as nested json. Iterating through nested list / dictionary using Jinja2 templates. Here I am getting stdout from that variable. 2. Each filename is a dash-separated list of the groups. Dynamic variable using hostvars within jinja2 loops. Modified 1 year, 6 months ago. I am working with Ansible and I need to display a list of the hosts' network interfaces. ansible-playbook foo. Evaluate variable content in Ansible. around the topic of using nested vs. Michael_DeHaan2 Nested variables and regex_replace() Ansible Project. In a task or template, instead of getting the IPv4 address of eth0, the “address” variable ends up being just “{{ ansible_{{ iface }}. conf” how do I access this? The period is seen as the next level in the There is a concept of group depth in Ansible (at least in recent versions). The only way to get a pretty solution if you have many Java versions and use the variables frequently is with Ansible 2. You must use either bracket notation or dot notation. How to use host_vars in Ansible? 1. The find module is to find files in a folder and its subfolders, but not to filter a list (even if file names are in this list), as you tried here. Iterating over nested lists. Nested Variables in Jinja2/Ansible. Learn more about Labs. My structure is like: hosts. group_names List of groups the current host is part of. What you can do is add a variable in the defaults/main. debug: msg: "{{ stuff. Environment variables – Used within Ansible playbooks to access environment variables from the system running the playbook or from remote systems. Ask Question Asked 7 years, 8 months ago. My playbook is: Hello ansible devs and users, In a variables file, I’d like to do something like this: iface: eth0 address:“{{ ansible_{{ iface }}. File varloops. I suspect variable parsing and scoping has changed considerably with Ansible 2. I already got the task to register the value - name: Check if /etc exists stat: path: /etc register: etc_exist I haven't been able to found anything in Google or in the Ansible documentation. ansible access results and file paths in nested loop. I'm trying to figure out why my jinja2 template (and ansible for that matter) cannot find my variables in my inventory file. Ansible nested variables with with_sequence loop. Usually, yes; it's another dependency that needs installation, and for most of the use cases I've had, it's only marginally nicer to use. Ansible access same group vars different children host groups. But the key is also a var. 1. How to iterate over variables in an ansible dictionary. For example, to reference an IP address from your facts using the bracket notation: This is not the exact same code. Is there any way to achieve what I want to do How to use nested variables (dictionary keys) in Ansible? 11. fruit' variable debug: var: food. How to resolve a variable inside a variable? Ask Question Asked 7 years, 2 months ago. Ask Question Asked 8 years, 7 months ago. vbotka (Vladimir Botka) December 16, 2019, 12:10pm 2. 33. Viewed 7k times Ansible and nested variables in loops. However, you have two possibilities. Basically I want to iterate through every repository, iterate through its config files looking for secrets kept in the vault and replace them with the encrypted value in the vault. Copying multiple files to hosts using ansible. Viewed 978 times Ansible accessing Nested Variables. Using find with using the search word slack in pattern:. 2 192. Ansible accessing Nested Variables. Ansible variables assign to host. Modified 7 months ago. Nested variables. 5. Trying to get the if statement to be based on the bgp_peer_version, I have the following variable files I use localhost and set_fact to store variables and access them in different playbooks. macaddress }} Variables net1, net2, etc defined in hosts_vars that way: net1: eth0 net2: br0 Is it You are on the right track about hostvars. gszngosntttqtqtyjaihpkzszyhsvpybccmkradiortah