Ansible variable within variable. Like facts, registered variables are host-level variables.

Ansible variable within variable yml and vars/main Jun 24, 2021 · Controlling your variables from outside of Ansible roles. b where b is dynamic, would be accessible using a[b]. yml-name: Set a variable ansible. yml # same as above, but staging hosts group_vars/ all. role A: ` name: Print test var from another role debug: msg=“{{ test_var }}” ` role B: ` name: Save some vars in register shell: echo “BLAH Mar 15, 2017 · If there are many complex variables needs to be generated by loops, and if/else. Mar 13, 2024 · Understanding Ansible Variables: Ansible variables act as placeholders, for values that can vary across environments. and on each run of the role within the playbook increment the variable: some_variable: some_variable = some_variable + 1 … or some_variable ++ ? and at the 5th run I can have a. user_id }}” ` If this is possible, what is the proper syntax for the variable MYVAR? Everything I am This new_site: 'sitename' is a variable containing an AnsibleUnicode string. Best regards Jul 9, 2015 · Double quotes around the {{ variable }} are required in the user: groups: definition above. 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 without the need for hardcoding Sep 12, 2017 · don't stack mustaches: {{ (ansible[ansible_default_ipv4]['interface']['speed'])|int|abs }} Aug 5, 2015 · Hi, How to set a variable inside role A and use it inside role B ? Role B is listed in dependencies sections in meta/main. yml of role A and I see its output then call role A. b. 8. Example: {{ansible_local. c where b is dynamic, would be accessible using a[b]. 3). May 19, 2016 · Hey guys, I have a variable {{ basket }} and it has a string for contents. Changing the variable value through looping in ansible Mar 15, 2016 · Hello folks, Is it possible to use tags as a variable inside of playbook? Specifically, I would like to have a condition to execute certain task only if a tag has been defined. to construct a hierarchy, and not with a _. Registered variables are similar to facts, with a few key differences. Jul 31, 2017 · I pass extra variables like these in the ansible input command. Feb 28, 2024 · One of Ansible’s powerful features is the ability to use variables within playbooks, making your automation scripts dynamic and adaptable. users|selectattr(‘username’,‘match’,‘MYVAR’)|list|first). shell: the 5th Oct 21, 2014 · Hello there, Is it possible to create a variable which is a dict using jinja2 within a playbook? For example, I have the following (contrived) playbook, within which I am trying to create a ‘host_info’ dict which I can then access from a task: Feb 26, 2020 · Below is my playbook: ` set_fact: excludefolders: “{{ excludefolders + ’ -o -name ’ + item | default(‘’) }}” with_items: “{{ lookup(‘vars Ansible variables are dynamic values used within Ansible playbooks and roles to enable customization, flexibility, and reusability of configurations. Consider a Playbook file shown. Dec 27, 2023 · When leveraged judiciously, nested variables make Ansible‘s "infrastructure as code" shine through declarative self-documenting playbooks. Like facts, registered variables are host-level variables. Ansible use variable inside a variable. The contents will change every time I run the playbook and I need a way to translate the contents of the basket, let’s say “apple” to another name, let’s say “JameslikesApples”. Ansible - Combining string with variable to form existing variable. yml # or production. For example: - name: some example command: {{ myapp }} -a foo Jinja2 variables use double curly braces ({{and }}). May 16, 2014 · I have been having a really tough time trying to use variables that are defined within an Inventory file. Once I define sudoGroup as above in my playbook's global vars: section, Ansible configures it at run time (based on ansible_distribution) for each target I define in my hosts: section. Defining and referencing variables. I am aware this can be done with an --extra-vars option + checking for variable instead, but I wanted to see if I could abuse the tags system a bit to make the syntax less verbose/clearer. _devices: - webservers and I would like the var _devices to be used within the following `groups[' ']` Ansible variable manipulation within vars. I’ve made Mar 26, 2015 · Therefore I'd recommend to split variables with a . 18. Create variable files in jinja template format might help. Apr 11, 2019 · You're already inside a Jinja context, so you can just write variables normally: - name: var to trim set_fact: trim_var: "{{ groupname. kolari December 15, 2015, 7:30am 1. yml staging/ something. value. Example: Can i use variable inside another variable in ansible. There are several different types of variables, designed for specific use cases and scopes. debug: var: x # no condition applied to Mar 20, 2014 · Whenever you have a module followed by a variable on the same line in ansible the parser will treat the reference variable as the beginning of an in-line dictionary. 6 ruamel-yaml-clib:0. Mar 17, 2020 · I have 2 var files with a top level of dev and prod. I have tried to use set_fact module or register variable, but no luck. name: load and run services include_role: name: “resource_{{ item. 1 %} {% set my_port = item. For Example: Inventory File: [WebApp_Login] server1 server2 server3 [WebApp_Login:vars] route=login [WebApp_Sweetness] server2 [WebApp_Sweetness:vars] route=sweetness [WebApp_ReallyAwesomeSweetness] server3 [WebApp_ReallyAwesomeSweetness:vars] route=reallyawesomesweetness J2 Template Mar 13, 2015 · How can I address that ? If I can insert some variable within the playbook (outside the role) in the beggining something like: vars: some_variable: 0. Jan 6, 2024 · Working with variables. Variables and Ansible. What I’m trying to do is to remove (lets say just do ls -la for now all files and directories within certain locations which names are not containing any part of certain list of variables. paths Jul 10, 2018 · Yeah, but those are not within the variable itself. However, registered variables are only stored in memory. For example, create the variable generated by jinja template: May 16, 2025 · Types of Ansible Variables 1. ansible doesnt like the variable within a variable. Does Ansible supports variable expansion within a variable while evaluating it. Sometimes, it would become nasty and less understandable when trying to generate them in tasks. How to access an ansible block variable in a file from the same block. Using a variable inside an Ansible loop. You don't need to use vars here in any case; you can just refer to the top-level dns_rule_jsondata variable directly. 0 using ansible-core:2. oracle. Use spaces after and before the double curly braces and the variable name. schema_name}}”}} with this I try to build the final variable name that if I put manually works, but like to don’t hardcode Schame_name and read from vars file. Play with this until you get what you want:- Apr 15, 2021 · Ansible supports the use of variables to better customize the execution of tasks and playbooks. {% set nginx_dir = item. Spiro_Mitsialis (Spiro Mitsialis) August 5, 2019, 4:53pm How to use a variable within a variable. builtin. Jul 26, 2022 · #Ansible Magic Variables. 0 ruamel-yaml:0. When I run into this problem I have to go back to the drawing board because I cannot find a Dec 15, 2015 · How to use external variable inside an ansible inventory file. You may be trying too hard to map your programming skills into Ansible. You previously learned how to declare Ansible variables within the Ansible roles, and that’s great! But it is also possible to declare the Ansible variables directly in the Ansible playbook. 9. They can be used to store any type of data, such as: Strings; Numbers; Booleans; Lists; Dictionaries; Variables can be defined at different levels, including Oct 7, 2023 · Variable Files: In separate variable files and imported into playbooks. split('test-' ~ env ~ '-') }}" Note that the Jinja ~ operator behaves like + , but it will convert its operands to strings first (which doesn't matter in this case, but is quite useful if you're dealing with Aug 5, 2019 · Ansible Project. Let me give you an example: ` name: List currently existing letsencrypt certificates find: paths={{ item. One of the arrays or keys in the dictionary is ‘abcd’ This works fine, but key ‘abcd’ varies in each dictionary. Role Defaults and Variables: Inside roles, both in defaults/main. Ansible supports many ways of passing variables into scripts, generating variables within scripts, and even processing variables as part of a playbook's tasks. Ansible is not meant to be a programming language. By using variables effectively, you can easily customize your configuration management and streamline repetitive tasks. See the docs for details. Here’s the scenario: Playbook uses variable {{ redis_pa&hellip; Jan 12, 2024 · Ansible variables store and manipulate data that can be accessed and utilized across playbooks, roles, and tasks. Playbook Variables; These Ansible variables are defined directly inside the playbook using the vars keyword. Kind Regards Marco Dec 16, 2021 · Declaring Ansible Variables Directly in Ansible Playbook. Jun 24, 2014 · Hi there, I have a play with a role that creates a load balancer template. . Ansible Project. These are variables built into Ansible and are used to access information about the Ansible application itself, hosts, host groups, and the rest of the Ansible manifest. ) As described in Ansible issue#8603, the configuration parser is reading variable values and immediately attempting to render templates it encounters while defining the variables. these vars are included for all hosts production/ # all files in here are automatically included for production hosts foo. They allow us to parameterize playbooks making them reusable and adaptable Aug 1, 2021 · Hi Guys would anyone be able to advise how I can format a variable within square brackets and single quotes. abcd. For example: dev: accesspolicies: policy1 policy 2 and prod: accesspolicies: policy1 There is a problem that i keep running into where my design requires a var_prompt input to be used to define which variable to loop over. ansible variables inside variables. json. Anyway, you may want to step back and tell us what you are trying to do that would make you want manipulate variables this way, because it kinda seems like you want to do something that isn't going to be idiomatic ansible. May 8, 2017 · Hi, I think I’m missing something obvious, so please point me in the right direction (ansible 2. How to work with Ansible variables in playbooks, inventories & command line, and where to set them. They allow for dynamic configurations and flexible automation by enabling the abstraction of values that may change based on different environments or use cases. package. When referencing list or dictionary variables, try to use the bracket notation instead of the dot notation. Im using inventory groups but wish to have a single var that I can change and be referenced ie. Keep in mind that all this is written in your YML file. Playbook Variables. Play: each play and contained structures, vars entries (vars; vars_files; vars_prompt), role defaults and vars. yml when: x is not defined # if condition is met, Ansible includes other_tasks. Variables can come from different sources, such as the playbook file itself or external variable files that are imported in the playbook. Understanding Ansible Variables. Special and environment types explained. This is why it is important to understand how to define variables to write a cleaner and more flexible playbook. This way, it’s possible to use the same playbook with different targets and environments. 2: 42: January 28, 2016 Jul 20, 2018 · But calling directly the variable works - name: "echo variable test" debug: msg: "{{ apt_install. Sep 14, 2023 · Hello Groups, Is there any way that we can have a variable within a variable-file? Example: ansible-playbook -i localhost -e “test=var1 some=ex_1” -e “ @files /dev/sample_ex_1. To represent the variations among those different systems, you can create variables with standard YAML syntax, including lists and dictionaries. Oct 28, 2024 · In Ansible, variables allow you to define values dynamically, making your playbooks more flexible and reusable. nginx_dir Jan 9, 2017 · Hello, after hours of struggle with Ansible I’ve decided to ask for help smarter people. You can use the vars keyword to define variables directly inside a playbook. inventories/ production. Is of type list. They are specific to the playbook and are a great starting point for customizing your tasks. This maybe similar to the bash script where I will cat the variable file then Apr 8, 2020 · I have a ansible variable definition, and was wondering if i can get the variables value based on the variable defined during runtime vars: test: user: "" dirs: base: "" logs Oct 7, 2015 · Hello Everyone, I am trying to iterate over a dictionary in a Jinja2 template (in Ansible). I have the variable (fuser_dirname) that I’d usually used as the main variable in my playbook. yml # or all/ . yml bar. allow_unauthenticated }}" What is the right syntax to get current loop value of a variable and use it inside another variable to retrieve related value (inside the same task) ? Aug 4, 2015 · Hi, I like to know if possible made reference of a variable inside other variable. htop. odbc. schemaregis0=host1 schemaregis1=host2 [inventory-hosts] server1 server2. In this guide, we'll explore different ways to include and use variables in Ansible with detailed examples. drs_rule_info. The ref is a separate variable from the scripts_config – Adam. Inventory: Within your Ansible inventory. Ansible uses variables to manage differences between systems. Thanks, Daniel Jun 8, 2018 · Interfaces are different for every server I’m working with, so to print details of each interface, let’s say I’m using the following code in a template: interfaces: {% for a_value in ansible_interfaces %}{{ a_value }} {% endfor %} Now this ends up printing: interfaces: lo enp0s3 enp0s8 This gives us variables ansible_lo, ansible_enp0s3, ansible_enp0s8 that I want to refer. I’ve successfully tested it in my dev environment, using {% for host in groups[‘dev-web’] %} server {{ host }} {{ host }}:80 {% endfor %} the ‘dev-web’ group is defined in my inventory, as well as ‘stage-web’, ‘prod-web’, etc. These are defined directly within a playbook under the vars section or as external vars_files. “{{websphere_mb. ini, its your prod hosts staging. For example, you can define a fav_color variable and set its value to yellow as follows: Ansible use variable inside a variable. Here's a breakdown of how to define and reference variables using Ansible: 1. Defining Variables: Playbook Variables: You can define variables directly inside a playbook using the vars keyword. this can be possible? Thanks Ale Dec 12, 2022 · Here you're asking for a variable with the literal name drs_rule_jsondata. credentials. Using Variables Ansible uses variables to manage differences between systems. All sublevels are the same. But if the contents were “banana” it would have a completely different translation like “IwentToSanFrancisco”. 0. Variable Scopes. A Subreddit dedicated to fostering communication in the Ansible Community, includes Ansible, AWX, Ansible Tower, Ansible Galaxy, ansible-lint, Molecule, etc Dec 15, 2023 · ansible-lint 24. yml Aug 29, 2022 · This time, the variable's value is passed into Ansible through the command option and successfully printed to the terminal. Archives. 16. This: new_site: - newsite - newsite2 - newsite3. In Ansible, variables provide the much-needed flexibility in Playbooks, templates and inventories as we shall later see in this post. Instead of writing 3 separate tasks within the role, I used ansible's loop in the playbook. Ansible roles are a collection of templates, files, variables, modules, handlers, and tasks created for the purpose of simplifying the reuse of Ansible code. yml” May 15, 2025 · # main. how can i get around this? Jan 29, 2019 · I am trying to do two things: Call a variable while trying to set_fact within a jinja pipe filter Prevent fails when the user isn’t found ` name: “Find the user_id for {{ user }}” set_fact: uid: “{{ (userinfo. {{ item. 9 ansible-compat:24. Using the ansible_versionvariable, the playbook prints out information about Ansible May 30, 2024 · Hello Group, Requesting for any help and guidance on how I can able to use the variable within the variables. With Ansible, you can execute tasks and playbooks on multiple different systems with a single command. Let's start with variables first. Ansible has 3 main scopes: Global: this is set by config, environment variables and the command line. yml # other_tasks. I’m sure it’s doable, but I’m new to Ansible syntax and tried different ways with no success. Apr 14, 2025 · Types of Ansible Variables. Aug 16, 2022 · Inside a Jinja template context, just use regular Jinja syntax for referring to variables. <value of cluster_name>, but there is no such variable -- that's not even a valid variable name. 2. c. Ansible playbook with variable. However, I’d just need to have another variable with the list of the car name to make it as directory name. jinja2 navigate dynamically to json object. Within an Ansible role directory structure, you'll have two types of variables inside the following directories: Jul 30, 2014 · Hello list, is there a way how I can access host/group vars from within a callback plugin? Basically I want to modify the Hipchat callback plugin to use a room ID configured via group_vars (or maybe registered as a var right in a roles tasks), as we have hundred of chat rooms and to which room a message will be sent would depend on the role. i want server1 property file to have the schemaregis0=host1 and server2 to have the other. The possibility to write role with a dict with the role name was nice Really, if I must write vars with the underscore, then the violation should be present also during the linting of the role and not only in a playbook. Assuming you are logged in to Ansible controller host: 1. What I’d like to do is change this template so that it can be used in any Aug 22, 2021 · (Thanks to @michael-hampton for leading to this answer. 4. In Ansible, you can define and reference variables to make your playbooks more flexible and reusable. Jan 28, 2016 · I have a use case where I need to use a variable within a variable. resource }}” vars: resource: “{{ item }}” with_items: “{{ services }}” How do I set the var (‘resource’) to something dependent on my item? Whatever syntax I try I always end up with a literal and not the value How to parses multiple variables within ansible. ) Registered variables are only valid on the host for the rest of the current playbook run. (Ansible facts are backed by whatever cache plugin you have configured. set_fact: x: foo # no condition applied to this task, Ansible sets the value of x to foo-name: Print a variable ansible. anoop. Jun 10, 2016 · With help from the google + ansible community here is what I have in my template that works: {% set all_interfaces = (ansible_interfaces | difference([‘lo’])) %} Oct 14, 2024 · Also you might consider re-organizing your inventory file structure to something like. How to put variable in variable in Ansible? 3. I have a task to download 3 zip files from Artifactory. yml-include_tasks: other_tasks. Part 1: Working with variables in Ansible. Bracket notation always works and you can use variables inside the brackets. Is there any Nov 20, 2017 · You cannot define a variable accessible on a playbook level (global variable) from within a play. Finally, we have magic variables. Hi, I have an inventory file In this section, we'll explore the basics of Ansible variables, including: What are Ansible Variables? Ansible variables are a way to store and reference data in your playbooks and roles. Is it possible to set variable in variable with ansible? 1. port }} I am looking to do something like below using a variable ‘nginx_dir’. A variable like a. Let‘s dive deep into best practices for taming nested variables for organization, flexibility, and simplified maintenance at scale. keys().