Ansible jinja set variable. Ansible variable in jinja2 template.

Ansible jinja set variable Module pause provides a convenient method to enter variables at runtime. Given the following file. 2. j2 template {% for item in my_var %} configuration_{{ item }}: value: - {{ loop. 80 to get a ramsize to then use in setting a Couchbase value. Ansible variable is defined, My scenario is to pass only one of the variable to an Ansible template file, so in Jinja. Use variable in Ansible template. Improve this answer. Passing HTML to template using Flask/Jinja2. Per the standard Ansible variable precedence rules, other types of variables have a higher priority, so this value may be overridden. I don't want spaces as a result of the multiline setup. custom_fields. Add jinja2_native=True to the [defaults] section of the ansible. ini: [group1] host1 ansible_host=1. Improve this question. Jinja2 template variable if None Object set a default value. regex_search filter returns None when used in a Jinja expression (for example in conjunction with operators, other filters, and so on). As you can see from the output of task 3 (debug), the values are already string when read from csv / registered. json. ansible-playbook fo This actually creates 2 copies of the variable, a normal ‘set_fact’ host variable with high precedence and a lower ‘ansible_fact’ one that is available for persistence via the facts cache plugin. cfg ├── files │ └── ignition │ └── cluster1 │ └── worker. I would like to set a variable which would be a fraction of the value extracted with a jinja filter in a role. How to use variable inside variable in ansible jinja template. Demo: hosts. When a If you want to have several lines in the same template file, you should not loop in your task but in your template only. I would like a section to be added in this template if myfirstplugin is set to be installed (install: true) So in my template I I want to use jinja2's template for generate configuration. Another option is to use a Jinja2 filter. 4th, 2018). Here is an example: - vars: list_1: usera,userb,userc the lowercase false is part of jinja's convention: " The special constants true, false, and none are indeed lowercase. Here's a basic playbook example: vars: app_instances: - host_name: host1-domain inst_count: 3 - host_name ansible/jinja extract multiple attributes from complex json return, rejecting specific matches. What I want is to be able to define a variable in my Ansible vars. I have multiple roles as follows : haproxy, java, nginx, tomcat ├── ansible-test-host. 1, the syntax you suggest in your post works perfectly well. " A: Put the declarations into the vars. Hence to bypass this behaviour you can use a dictionary, since you can change the value of the dictionary. There doesn't appear to be a good way to declare dynamic 'global' variables in Ansible, so using the variables per host in the hostvars object seems to be the most practical way. ansible ignoring when condition not wrapped in jinja2 format. 1 Ansible set_fact from dictionary based on item type ansible set_fact to the list with jinja2 condition. This template uses some variables. 5. Hot Network Questions Syntactic analysis in English: correspondence between Italian "complements" and English Here is my problem I need to use one variable 'target_host' and then append '_host' to it's value to get another variable name whose value I need. Thanks to Vladimir by the debug examples those helped me to understand the problem. Ansible : display variable in jinja template. Here's a basic playbook example: vars: app_instances: - host_name: host1-domain inst_count: 3 - host_name: host2- Jinja2 allows you to use variables, expressions, filters, and control structures inside templates. For example The variable is just named secret; secret. ├── ansible. Multiline variable in Ansible playbook without newlines (spaces) Context: A set of variables and their values used by a Jinja2 template at rendering time. 2 with the following config files: file hosts: [group1] host1 host2 host3 [group2] hostA file host_vars/host{N} (where N 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 As Chin Huang said above, I was messing up the syntax regarding using the when clause. You can find a complete set under the ansible_facts variable, most facts are also ‘injected’ as top level variables preserving the ansible_ prefix, but some are dropped due to conflicts. shell> tree . I'm Using ansible variable inside gathered fact list. yml, I have this: plugins: - name: myfirstplugin install: true - name: . Ansible : display variable in So you started learning Ansible and began writing your first playbooks and templates. 5. In that case we need to check if the variable is defined on each host before print, otherwise it will fail. The issue is, it appears the JINJA2 templating is being compiled before the set_fact in the playbook takes place. yml. 0. Currently I'm using something like this: - command: Usage of set_fact module caches fact between runs. Something like this: vars: - host_domain: "testing. Take Away: Use a for loop instead. yaml \ -e 'variable_a=${variable_a}' \ -e 'variable_b=${variable_b}' The reason for this is that Jinja uses the context only as primary data source for template variables for performance reasons. . Jerald Sabu M Ansible variable in jinja2 template. Two values for same field with Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog I am reading from a CSV file, register a variable and loop through the variable's list. parameter}}"). For example, given a dictionary from the question is stored in the variable manifest and other variables that are templates in the dictionary's values, the following expression will substitute the variables' values to the dictionary values: - hosts: localhost tasks: - name: evaluate dictionary Ansible set variable value conditionally from the value of another dictionary attribute. install: true # etc I have a task that deploys a template. (ansible) 0. png" %} {% elif "cloudy" in forcast_list[4] %} {% set img = "sun-cloudy-thunder. I use set for create new variable, after that I need to use fallowing string as new variable for rendering. To refer to an Ansible-variable-value you use a Jinja2 expression delimited by {{and }} (no quotes involved): {{ variable }} There are two ways to concatenate strings with variable values for your case: The problem: the Jinja2 template engine will ALWAYS return a string. When you attempt to do anything with bar it has to be evaluated as an independent Jinja expression, which happens before the is defined check. ansible_become_password: "{{ password. . How can I make Ansible interpret a variable inside a variable? 0. Variables will keep the set_fact precedence for the current run, but will used ‘cached fact’ precedence for subsequent ones. Ansible: apply when to complete loop. /deploy. replace('\n', '') wasn't getting rid of it, I thought, what the hell, I'll try this, and it WORKED. - ansible. What you can do in those kind of cases is to break down the dictionary in multiple lists, all containing one of the field you are interested into, with the map filter, then reconstruct a list of list with the help of the zip filter. I am trying to get the host_vars using a variable and getting warning messages, is there any better way to achieve this? My Inventory yaml is. You quickly realize you need a way to conditionally control the flow and inject logic based on variables, facts about managed nodes, or results of prior tasks. 3. Choices: Jinja2 templates is widely used in Ansible playbook to access variables, configuration etc Jinja2 is a very popular and powerful Python-based template engine. So when I use this in other hosts, should use with jinja 2 template. How can I ignore an element from a list when looping through with Jinja? 1. If uses first value no matter what the actual value is. However, I run into Use configuration option DEFAULT_JINJA2_NATIVE (default: False). {uid: uid[0], locked: krbloginfailedcount[0], disabled: nsaccountlock, pwdexp: krbpasswordexpiration[0]. ansible set_fact to the list with jinja2 condition. Say I have something like below: greeting: "Hello_World" I want to remove the substring "_World" from greeting and store the result in another Ansible variable. Leave your code as in the question (i. Embracing Templating (Jinja2) ¶ As already referenced in the variables section, Ansible uses Jinja2 templating to enable dynamic expressions and access to variables. x: Unfortunately the template module does not support passing variables to it, which can be used inside the template. To cast values as certain types, such as when you input a string as “True” from a vars_prompt and the system doesn’t know it is a boolean value. This would render the password wrong. ign ├── group_vars │ └── all ├── hosts └── pb. extract data with json_query from jinja2 variable in ansible. I think, we cannot register a new variable in an Ansible playbook. Loop ansible json_query in Ansible. Pushing items to a var while looping over another var in Ansible Jinja2 template. data[item. With a Jinja filter you can set a This is the best answer because so many others do not differentiate between False and None. How to access an ansible block variable in a file from the same block. inventory vars. Load 7 more related questions Show fewer related questions Sorted by: Reset to Now "control-acc-abc1" will have server_name set to abc1 and "control-acc-abc2" will have server_name set to abc2. ansible-playbook playbooks/deploy. It later imports a role, within that role it has another set_fact using JINJA2 conditions with a for loop over the fact set in the playbook. 2. 6 ansible_connection=local host4 ansible_host=4. I pass them externally while executing playbook like. Next, copy all of the sensitive variables over to the vault file and prefix these variables with vault_. Related. You do not need the vars lookup here at all, since you are using a single static variable name. I am trying to iterate over a dictionary in a Jinja2 template (in Ansible). I'm trying to use jinja template as value for ansible. Create Variable From Ansible Facts. test2: a: 1 msg: int Next option is a combination of the dictionaries. Follow asked Sep 18, 2019 at 7:44 Ansible and Jinja2 variables combination. cfg (or set an environment variable ANSIBLE_JINJA2_NATIVE=True. Viewed 280 times -1 . I'm trying to create the following loop in jinja: variable: > [ {% for replaceme in list %} { 'name': "{{ "string-{{replaceme}} " if replaceme How to set concatenated string variable in Ansible template based on a condition. I swear I was working on this for hours. Why is there extra blank {} in variable? 0. In most cases, you can use the short plugin name bool. 13dimitar 13dimitar. This is on RHEL 7. result. If you need to use that value later for other tasks, you cannot do it this way. It's not clear how to "inject" a variable to the template to use while iterating. Jinja2 warning about delimiter usage. Ansible and ForwardAgent for sudo_user. Then perform the for loop from it. Follow asked Oct 13, 2015 at 20:51. Ansible and Jinja2 variables combination. Sets a fact from that registered variables output. 708 1 1 Using variable in default filter in Ansible Jinja2 template. 1. Jinja2 in Ansible templates allows this type of expression in templates: {% if foobar is defined %} Is there any shorter version to say 'do not print this line if its variable is not defined? Something like foo_bar = {{foobar|skip_this_line_if_undefined}}? ansible; Ansible - Using Jinja 2 for Dynamic Roles. These variable files are in YAML format. Ask Question Asked 3 years, 11 months ago. named ├── tasks │ ├── config. 2 I am trying to create a single list using ansible set_fact Jinja2, But its creating two different lists Variable: lb_listeners is set to [80, 443] code: - name: "Build listeners map" set_fac For Jinja 2. – Ashar. All variables for terraform and ansible is in a json I need to create a string in a template that can change between hosts, and it needs to be in the form of: "cores": "0,1,2,3" And the reason the string is "0,1,2,3" in this example is because the host has 4 processor cores. 3 I am trying to define a "complex" (with quotes) multiline variable in Ansible. Ansible variables. In this case, you should refer to the Jinja2 for structure documentation and use the corresponding special variables available inside the loop. - name: set_fact set_fact: m_name: - 'hello' - 'world' and after that I have task with Dynamic variable name in Jinja for loop. Jinja2 variables behaves differently from that of conventional scripting languages, you can't modify the variable in a for loop. Some behavioral parameters that you can set in variables you can also set in Ansible configuration, as command-line options, and using playbook keywords. I used a dict here only as an example. bool for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter To avoid ordering issues, use a variable with the lookup instead of set_fact. Pass array in --extra-vars. yml I want to use it in the service configuration: Essentially, myVariable is (obviously) a variable, but I want the item someVariableItem to be set elsewhere. Var with the filename; shell task to cat the file; use the result of the cat to pass to the ec2 module. "This option preserves variable types during template operations. foo variable contains a value of bar. 7 (currently available as the stable-2. This means ability check whether something is a list, a set, a dict and so on and differentiating between all of those. The YAML library is included with the AppEngine SDK – In Ansible 2. The framework under which I am currently working does not allow me to perform the following operation in Ansible and thus I was hoping to achieve the same results in Jinja2. Given that Ansible processes all variables through Jinja2, and doing something like this is possible: - name: Debug sequence item value debug: msg={{ 'Item\:\ %s'|format(item) }} with_sequence: Ansible variable in jinja2 template. datetime}’) | list }}” Later in the playbook, I use the template module to format up an HTML file that I email out. jinja2 ansible - accessing complex var. shell> cat tasks-int - debug: msg: Processing integer {{ item }} shell> cat tasks-str - debug: msg: Processing string {{ item }} shell> cat tasks-list - debug: msg: Processing list {{ item }} shell> cat tasks-dict - debug: msg: So, I have been trying to create a global variable in Jinja2 template that will be available across all the loops and blocks. Hot Network Questions tasks:-name: Register JSON output as a variable ansible. I have been trying different variations of the line below. yml, the dev. an_integer: "{{ item. And then use that count afterwards. Using Jinja filter with two variables in Ansible. Magic variable names are reserved - do not set variables with these names. 7 branch, scheduled for GA on Oct. ji2 I am trying to compose a "set_fact" statement in Ansible which basically tries to map a list value with corresponding integer in the same item output variables. I am trying to set value in j2 template in ansible. Upgrade to Ansible 2. yml ├── templates │ ├── option. pamlogon is another way to access fields of that variable in Jinja and is (mostly) equivalent to secret['data']['pamlogon']. Ansible facts in Dictionary for Jinja Template. 264. I am trying to use the namespace class of Jinja2 . yml 4 directories, 5 files Does Ansible supports variable expansion within a variable while evaluating it. What is the right I just want to loop through an existing list and make a comma delimited string out of it. You can refer Playbook Best Practices – Variables and Vaults for that matter. The variable environment is also reserved. Ansible set variable value conditionally from the value of another dictionary attribute. I'm using ansible 2. example. I have a small playbook with jinja2 template to apply nginx configuration. Inside of the vars file, define all of the variables needed, including any sensitive ones. Nikhil Owalekar Nikhil Owalekar. Please keep in mind that it is not possible to set variables inside a block and have them show up outside of it. Use an ansible fact in an if conditional - Jinja template. shell> ANSIBLE_JINJA2_NATIVE=True ansible-playbook pb. For Ansible 1. This case with templating variable names is a prime example. I was wondering if there's a more flexible way to cope with default values. So you could have your template task inside an extra file and include it twice with Q: "Ansible - check variable type" A: An option would be to discover the data type and dynamically include_tasks. You should adjust the variables in the vars file to point to Secondly, Jinja2: The majority of parameters in Ansible (the value of when being a notable exception) are Jinja2 templates (strings). Set cacheable to true to save variables across executions using a fact cache. yml ├── nginx └── tomcat Base playbook is : myplaybook. Ansible can't find variable defined in jinja2 template during runtime. Ansible Dict and Tags. render(dict(os. Ansible Jinja2 template conditionals in for loop. A simple task, or so I thought: in a Jinja template keep track of the number of items in a loop. In this case, the “ {{ }} ” is an instruction to Jinja2 to interpret whatever appears inside as an expression that will be printed in place of everything, including the curly braces. 9 Ansible set_fact list using jinja. One way to address this is to make it so bar can be evaluated without resulting in an undefined value, e. 13. Hot Network Questions Why does launchd bootstap fail with "Bootstrap failed: 5: Any three sets have empty intersection -- how many sets can there be? There is no need to use the bool Jinja filter if the value of the variable is defined under hostvars. Can't escape brackets concatenated with variables in Ansible. 4. argh. Docs: In addition to storing variables directly in the INI file, host and group variables can be stored in individual files relative to the inventory file. Commented Feb 23, 2017 at 21:11. There is an extra space before the closing quote. Multiline Template - string escaping in Ansible. For example in Ansibles group_vars we may have: Is it possible to create a jinja2 template that puts variables on one line? Something like this but instead of having two lines in the results have them comma separated. Ansible/Jinja: condition with an undefined statement. --- - hosts: all vars: dev: foo: bar I set the env variable to contain a value of dev on the command line. A "newline" at the end of each line is translated into a space. Example: greet_word: "Hello" Thanks in advance!. Ansible gurus I need your help. Follow edited May 22, 2020 at 12:24. Is it possible to create a jinja2 template that puts variables on one line? ansible template loop jinja2 "i need a line separated with , Using url module with jinja2 templates. 6. x the variable precedence starts like this: role defaults. Ansible OR not working correctly (I know its me!) 70. Ansible Variable Within square brackets and single quotes [' '] 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 Lazy Evaluation does not work properly with ansible_become_password, obviously. stdout }} " I guess it is not possible to refer to item variable when using Jinja2 'default' filter? Like in this example playbook: --- - hosts: localhost become: no gather_facts: no vars: users: Q: "Write nice code. Meanwhile, if c is always a calculated var that can change depending on a So, there are two cases where this will apply: When trying to access a key of a dictionary from a variable, you would simply use the variable as is, remembering that, when you are inside the expression delimiters {{ }}, a string will be interpreted as a variable, if not enclosed inside simple or double quotes. This example uses the term "first_name" which we can assume will not expect a value of False, but there are many cases where a system needs to treat False and None differently. This creates a possibly confusing interaction with meta: clear_facts as it will remove the ‘ansible_fact’ but not the host variable. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. Using {{ and }} in ansible shell command. Can we obtain the power set of a finite set without the Axiom of Power Set? How to use local SOLR zip file during Sitecore installation? Use {% set %}: {% if 'clear' in forcast_list[4] %} {% set img = "sunny. The logic should be: if variable_a is passed assign var_a and ignore var_b else assign var_b. Viewed 5k times 2 . set interface name in a variable with jinja loop on ansible. The kwargs syntax as you have written it will define a dict variable named env that contains all the environment variables as children. But the variable contains index inside it. png" %} {% endif %} Proper Ansible syntax for passing variable to Jinja2 template file. Ansible: How to build variable name using other variables values Dynamic variable names with ansible. Jinja2 templates is widely used in Ansible playbook to 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 would like to set the default value in-line, without first declaring the default_url var. Jinja2 template Calculate set difference using jinja2 (in ansible) Ask Question Asked 8 years, 2 months ago. last, I just need to Inside a an Ansible Jinja2 template I'm trying to set a "default" value which also has a variable in it but it's printing out the literal rather than interpolating it. e. Why don't you try with {% set Code=item. For details about setting variables in inventory, in playbooks, in reusable files, in roles, or at the command line, see Where to set variables. I am facing syntactical errors in Ansible set_fact jinja2 for mapping a list and integer. Ansible: Ansible - dynamic variable with host_vars and string in the name. It's as easy as below example: --- - hosts: localhost vars: csv: | some;val;ues string;1;2 Ansible : display variable in jinja template. 0 Ansible facts in Dictionary for Jinja Template. Modified 2 years, 3 months ago. Viewed 18k times How to get the sum of two defined variables in Jinja2 ansible. val | int }}" , for example, won't change that behavior. Modified 6 years, 8 months ago. Ansible newline in jinja template. Ansible will use that value only if the variable is not defined somewhere else. Using variables in the Jinja2 I have a Jinja template that spits out a long list of IP address in a config file format. Ansible regex with assert operator. Wow, it worked. I have tried escaping the newline with "" as indicated in many questions/answers on the internet, but Ansible seems to ignore the "". My sample code which show what I want to achieve: play. Below are the most important components of Jinja2 syntax: Variables in I would like to set the default value in-line, without first declaring the default_url var. 4 ansible_connection=local host2 ansible_host=2. It works if the set_fact is retrieved in the same playbook but when I use in different playbook, it is not persisted. There was a trailing \n in a JSON string I was trying to post to a server using the uri_module. join((var1, var2, var3 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 need to dynamically set a new list type variable list var. ; Example contents of my playbook. Follow asked Jul 15, 2019 at 11:33. I have a task to download 3 zip files from Artifactory. The incremented value of count only lives within the scope of the loop. See YAML Syntax if you are new to YAML. yml -e 'jira_ticket=REL-78' I can't get it to strip out 'deploylist/REL-78' because I'm passing in 'jira_ticket' If i hardcode the varible ('REL-78') it works perfectly. shell: cat /some/path/to/file. Ansible and Jinja2 logic for loops. Ansible playbooks are pure machine-parseable YAML. How to use template module with different set of variables? Related. So if you want to define a default value for a variable you should set it in role/defaults/main. If you look at my playbook. Datacentre %} – sotoz. Using variables in the Jinja2 template in ansible Playbook. 546 5 5 Ansible nested loops, how to set inner loop variable based on outer variable. At least in my case, I have this in role "a" : - name: Set fact set_fact: "{{ variable_name }}": "{{ variable_value }}" Ansible variable in jinja2 template. environ. So if another task depends on on a change, it will not run. how to use variable in Just posting this here for anyone who might be interested in how you can set multiline variables in Javascript for example; var myData = `{{ multiline_string }}` How to write a multiline Ansible Jinja2 variable? 2. Ask Question Asked 2 years, 3 months ago. Ansible variables across plays without group/host vars. Based on your question, what you really want is: outputText = template. 5 ansible_connection=local [group2] host3 ansible_host=3. It isn't appropriate for me. For example, you can define the user Ansible uses to connect to remote devices as a variable with ansible_user , in a configuration file with DEFAULT_REMOTE_USER , as a command-line option with -u , and What is processed by jinja2 at ansible runtime is the content of the yaml vars, not the yaml file itself. Their example involves setting variables, but the concept is the same:. Hot Network Questions Which is the proper way I need to replace a variable that has the extra argument passed to it via CLI. I could probably do this by combining several techniques, the variable assignment from here: Set variable in jinja, the conditional comparison here: Ansible uses Jinja2 templating to enable dynamic expressions and access to variables and facts. What I am trying to do looks like : - name: Get size of FS set_fact: Using Jinja filter with two variables in Ansible. The set you are using in you template will only be valid inside your template. 3. render incorrectly for that situation. Ended up having to do a test on both @Garret and @Carsten / @azalea answers, so: {% if variable is defined and variable %} value of variable: {{ variable }} {% else %} variable is not defined or is falsy {% endif %} I'm trying to learn jinja and Ansible. I did not ask for a way to test whether something is whatever jinja2 developers think "mapping" is. In this case, how do I set the groups to an empty value . Ask Question Asked 5 Using ansible variable inside gathered fact list. Objective is to create many config files in a directory, one for each var in a list. How to loop over Ansible variable names. User['first_name'] or 'default'}} will not catch that case and will convert False to I'm using the ec2 module with ansible-playbook I want to set a variable to the contents of a file. The include statement supports passing variables. 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 variables that are not strings). This filter plugin is part of ansible-core and included in all Ansible installations. Other sources have also mentioned It seems that any evaluation of the variable (fact) using Jinja2 filter will do it. Is there any other solution? Works the same way using variables: ansible -m debug -a msg="{{ '-'. For example. Jinja2 nested varibles. yml and looks like The example is in the question title. Disclaimer: the number of items is not equal the number of times the loop runs, so I can’t use the loop variables. How to remove or exclude an item in an Ansible template list? 0. builtin. And finally, join everything together. dev_cluster: hosts: host-vm01: install: httpd: true zookeeper: true mysqld: true host-vm02: install: httpd: true zookeeper: true mysql: true host-vm03: install: httpd: true mysql: false You're already inside a Jinja context, so you can just write variables normally: - name: var to trim set_fact: trim_var: "{{ groupname. yml ├── hapoxy ├── java ├── myplaybook. I'm having problems with a nested loop on ansible. Ansible multiline string with multiple quotes. Just use the normal accessor syntax: msg: "{{ secret. com" - my_url: "{{ This document explores two essential ways to utilize Jinja templates in Ansible: adding variables to a configuration file building complex files with loops and intricate data Just to shed more light into this problem. 9, the scope behavior was fixed, invalidating code that worked in previous versions. The value of c remains unchanged for ansible itself. 4. and ansible_play_hosts_all variable to loop on it. Modified 3 years, 11 months ago. Ansible filter for json variable. For some reason it only works with numbers? here is the plugin configuration: Why do I only get the ansible_password variable set to my hosts ? I have tried using simple quote, no quote at all and it does Is there any way to reuse the variable in set_fact that uses filter(s)? regex; jinja2; ansible; Share. Ansible variable usage. It says in the doc that it should be jinja2 expression. Ansible jinja2 stop removing escaped double quote. 9. – Basil Musa Ansible check if variables are set. There was a feature request but it was rejected. ansible allows Jinja2 loops and conditionals in templates, but in playbooks, we do not use them. yml │ ├── main. I am looking to do something like below using a variable 'nginx_dir'. I'm customizing Linux users creation inside my role. I need to let users of my role customize home_directory, group_name, name, password. I can think of two workarounds: 1. So can I use set_facts again to combine a previous set_fact with an existing variable? I am not sure about the syntax here. Set variable from another variable in Jinja. Turns out that Jinja has other opinions, and variables inside a loop are all local. For example: lb_url: {{ lbip_{{index }}_url }} But the above format doesn't work. How do I query a complex JSON Set arrowheads at the same height as node This solution is not suitable for every use case, as set_facts doesn't change the variable value. 18. Jinja2 default value when None. Hot Network Questions Note. How to compare 2 values and take an action based on the result in ansible. Ansible Jinja2 Filter - Filter data and create a list from data. I want to remove a specific substring from a variable in Ansible and store the result into another variable. Share. But I'm stuck with this. Jinja2 Templating: I need to create new variable from contents of other variables. The result: TASK [Do real work] ***** I want to combine a fact set with set_facts with a string variable and register it as a new variable. The context defines the resulting output that is obtained from a template. However, I run into Whether or not you define any variables, you can access information about your hosts with the Special Variables Ansible provides, including “magic” variables, facts, and connection variables. Jinja dynamically Jinja2 if variable is defined set variable from Ansible defaults which references variable. ji2 │ ├── view. Jinja2 set default value to include if How do I get a value from an environment variable, but use a default if the environment variable is unset? This is an example that does not work --- - name: a playbook hosts: all vars: I am trying to set a variable in Ansible with set_fact at runtime based upon another variable. create two files named vars and vault. Given that Ansible processes all variables through Jinja2, and doing something like this is possible: - name: Debug sequence item value debug: msg={{ 'Item\:\ %s' Ansible : display variable in jinja template. In my case I just want to set a string with mixed number and letters. In foo. Ansible template module not parsing with_items variable. Include. You are calling . Because that caused confusion in the past, (True used to expand to an undefined variable that was considered false), all three can now also be written in title case (True, False, and None). lineinfile module in role task. Here's how I'm currently doing it. I know that the code below is possible: I had an issue like this in Ansible. Hot Network Questions Teaching tensor products in a 2nd linear algebra course The templating language for my configuration file is Jinja2. I asked for a way to check variable type. value. txt We've been using Ansible to deploy our services and config files over the last few months and we've been making use of the Ansible variables. j2 files which allows us to easily make changes without having to hard code all of the config. 7. Code example: You cannot register a variable, but you can set a fact (which in most use cases, including yours, will be equivalent to a variable): Using Jinja filter with two variables in Ansible. Unable to get variable in Ansible Jinja template of a different / dynamic host. So by fixing that, the when clause obviously works. Ansible how to split string in newline. map('quote') quotes for shell variables (wont work for j2 templates), and it decides if quoting is needed (based on content of the string). index I am setting a fact in Ansible and that variable has a value with hyphens, like this "dos-e1-south-209334567829102380". Ansible uses Jinja2 in many places, especially when dealing with variables, as it provides a huge set of features for empowering the humble variable. i want to set inside a variable interface name if is equals to a variable pass on command line so i'm using jinja like this : - name: Inizializzo la rete hosts: all gather In my Ansible defaults. abcd. I have a playbook that runs a task, registers a variable. Ansible Nested Loop in Template. Something like this: Inside a Jinja template context, just use regular Jinja syntax for referring to variables. What I am trying to do specifically is use the ansible_memtotal_mb value and multiply it by . yml gives. If I set The main practical difference (beyond setting variables not requiring an additional task) is that variables are evaluated at the time of use so the value of the first url might change over time if hashivault_secrets changes, while set_fact will result in a static value based on the evaluation of the template at the time the set_fact task runs I have a playbook that sets a fact for user info: name: Get User Account Info set_fact: user_info: “{{ user_show. , frob_count: "{{item. json register: result-name: Set a variable ansible. Enter Jinja2 if statements – your key to unlocking the true power and flexibility of [] I have a playbook that will iterate over a set of hosts in different environments, "dev", and "prod". - set_fact: mailbody: "{{ mailbody | default('') + ' Skip to main content I'm not using Jinja template but this set_fact variable is assigned to email module's body attribute. i want to split , so i only get "dos-e1-south" Here is the play - set_fact As of 2018, using ansible v2. Is there any other way to achieve the same in ansible? I would like to use a system fact for a host times a number/percentage as a base for a variable. If you want to modify the context write a function that returns a variable instead that one can assign to a variable by using set: {% set comments = get_latest_comments() %} Source I was trying to set a jinja2 variable's default value as a list type. The variables get placed in our (config_name). In my variables file I have:--- domains: - [email protected] In my template file I have: server_name {{ domains }}; Once playbook deployed, in my config file I have: server_name ['[email protected]']; My fact 'somevar_state' is dynamically set and derived from another fact that can be present or not in each host. set_fact: variable: '{{ vars['my_' + variablename + '_variable'] }}' Ansible and Jinja2 variables combination. One of the arrays or keys in the dictionary is 'abcd' This {{ item. – alixander. You can define a simple variable using standard I need to dynamically set a new list type variable list var. This works fine. j2 dest: test. Dynamic variable names with ansible. items())) So, I have been trying to create a global variable in Jinja2 template that will be available across all the loops and blocks. So, how do I modify a global variable in Jinja2 in for loop? ansible; jinja2; Share. debug: msg: "{{ foo[key] }}" vars: key: Use jinja template in a json property name with Ansible. yml - hosts: localhost gather_facts: no vars: x: a y: 1 tasks: - name: templating template: src: test. Default value for nested variables in jinja2. 6. Task nbr 1,2,3 fetch the value of variable however nbr 4 is not able to do what I expect. set_fact: myvar: " The ansible. You can use templating with the template module. Ansible greatly expands the number of filters and tests available, as well as adding a new plugin type: lookups. Ansible: Assign Ansible variable to dynamic array of JSON objects using Jinja2 template. Ansible set_fact output. For example, into the group_vars/all. I have a template with a variable I need to set dynamically while iterating through a list in the playbook. 285. 7 ansible_connection=local Iterate over Variable in Jinja Template. So you could have your template task inside an extra file and include it twice with The problem is that bar is technically defined, and your definition of bar uses a possibly undefined variable. " This will influence the whole playbook. name] }}" or I appreciate all the effort to maintain high standards with ansible-lint rules, but I often find myself puzzled by the lack of explanations for some of these rules, and I believe I am not the only one that uses ansible-lint as a reference to write better ansible code. The order of precedence of role vars is still lower than set_fact so this could do the trick. set_fact sets variables to a static, fully evaluated value while normal variables are evaluated lazily, Ansible and Jinja2 variables combination. Ansible variable in jinja2 template. yml file: optional_service_parameter: "value" Whenever the variable is defined in vars. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Multiline shell script in Ansible with Jinja variables. My Ansible variables are as follows:--- Top: inner: type: type1 other_random_variable: - random: 1 inner2: type: type2 inner3: type: type1 How can I add new line "\n" characters to Ansible variable mailbody I set the below variable to ansible's mail module body attribute. Ansible: How to build variable name using other variables values. The issue is that when I have a customer with more than one IP address stored to their name the template, rather than saving this new ip on a new line, simply appends the second IP on to the first one and puts out one line with two IP addresses joined together. results | json_query(‘[*]. Something like this: my_string = 'stuff, stuff, stuff, stuff' I already know about loop. For example, the tasks below. Solution. port }} works fine, but key 'abcd' varies in each dictionary. How do I format each string in a list of strings in ansible. This is done in several passes, dig in the ansible code if you want to understand what is under the hood exactly. data. ansible - changing a specific line in configuration file using a jinja template. Is this possible? ansible; jinja2; Share. resultDC. I need to replace a variable that has the extra argument passed to it via CLI. Things like {{p. g. mryrm uxgydr lsfnz liqf amzup dfzjeyy htovd gnad afudk xxbpzz