. Another common use case for parsing CLI commands is to break a large command The json_query filter lets you query a complex JSON structure and iterate over it using a loop structure. Last updated on Feb 17, 2023. ansible.builtin.regex_search(positional1. end_block directives to break the command into blocks that can be parsed. Is a hot staple gun good enough for interior switch repair? My application required "not" in the "when" statement but it would not be needed to answer the original question. It only takes a minute to sign up. ansible.builtin.regex_findall(key1=value1, 'Some DNS servers are 8.8.8.8 and 8.8.4.4', Protecting sensitive data with Ansible vault, Virtualization and Containerization Guides, Collections in the Cloudscale_ch Namespace, Collections in the Junipernetworks Namespace, Collections in the Netapp_eseries Namespace, Collections in the T_systems_mms Namespace, Controlling how Ansible behaves: precedence rules, ansible.builtin.regex_findall filter extract all regex matches from string. If you are unsure of the underlying Python type of a variable, you can use the type_debug filter to display it. Ansible - regular expression search using regex_findall. If you order a special airline meal (e.g. For a full list, see the PyYAML documentation for dump(). See Why does the regex_search filter return None instead of an empty string? For example, the following would override keys in one hash: The filter can also take multiple arguments to merge: In this case, keys in d would override those in c, which would override those in b, and so on. Truce of the burning tree -- how realistic? Search across line endings if True, do not if otherwise. you can remove the "name: " on your list as it's still the same to every elt. Regular expression string that defines the replacement. For example, the tasks below - debug: msg: bob is in the list when: somelist|select ('search', regex)|list|length > 0 vars: regex: '^name: bob$' - debug: msg: bobby is in the list when: somelist|select ('search', regex)|list|length > 0 vars: regex: '^name: bobby$' gives (abridged) *)$ will always match only one result, while (. This filter can be used to generate a random MAC address from a string prefix. You must manually install the jmespath dependency on the Ansible controller before using this filter. Input This describes the input of the filter, the value before | ansible.builtin.regex_search. You can provide default values for variables directly in your templates using the Jinja2 default filter. You can do this with: The variable value will be used as is, but the template evaluation will raise an error if it is undefined. If you order a special airline meal (e.g. The example above will parse the output of show interface into a list of You can also use Python methods to transform data. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The best answers are voted up and rise to the top, Not the answer you're looking for? For example, a variable that is lower in the list will override a variable that is higher up. Connect and share knowledge within a single location that is structured and easy to search. Issue Tracker Learn more about Stack Overflow the company, and our products. The network filters also support parsing the output of a CLI command using the Passing test.staging.domain.com through it would produce just test. plugin name The tasks below give the same results. Required fields are marked *. Ansible regex with assert operator. Share Improve this answer Follow answered Oct 19, 2017 at 23:34 jscott 24.3k 8 78 99 https://www.rogerperkin.co.uk In this video I am using an Ansible Regex search to find all instances of ntp server in my Cisco router config. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Does Cast a Spell make you a spellcaster? You can create custom Ansible filters as plugins, though we generally welcome new filters into the ansible-core repo so everyone can use them. Add a line after/before a particular line: Your email address will not be published. To get a list combining the elements of other lists use zip: To always exhaust all lists use zip_longest: Similarly to the output of the items2dict filter mentioned above, these filters can be used to construct a dict: List data (before applying the zip filter): Dictionary data (after applying the zip filter): The subelements filter produces a product of an object and the subelement values of that object, similar to the subelements lookup. In the following examples i will show you how to use ansible lineinfile module with different parameters like regexpto insert new lines. Configuration entries for each entry type have a low to high priority order. Server Fault is a question and answer site for system and network administrators. This documentation is now very good, but at the time I wrote this test repo, it had many confusing errors. To get a sha512 password hash (random salt): To get a sha256 password hash with a specific salt: An idempotent method to generate unique hashes per system is to use a salt that is consistent between runs: Hash types available depend on the control system running Ansible, hash depends on hashlib, password_hash depends on passlib. These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_replace(key1=value1, key2=value2, ). These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_findall(key1=value1, key2=value2, ). For below, vcsourcekit = 10, I want to match regex ^10. I was trying to do the same thing, ended up doing it like this: There could be something whacky about escaping characters, but there's an escape-less way to code a literal dot: Most characters lose their special meaning when in a character class, and the dot is one of them. Dot product of vector with camera's local positive x-axis? It doesn't evaluate the variable, rather interprets literally. into blocks that can be parsed. To get a random number between 0 (inclusive) and a specified integer (exclusive): To get a random number from 0 to 100 but in steps of 10: To get a random number from 1 to 100 but in steps of 10: You can initialize the random number generator from a seed to create random-but-idempotent numbers: The shuffle filter randomizes an existing list, giving a different order every invocation. To learn more, see our tips on writing great answers. To select a single element or a data subset from a complex data structure in JSON format (for example, Ansible facts), use the json_query filter. Ansible selectattr filter is to select matching objects from the dictionary by applying a test across all the objects in a dictionary/sequence. If recursive=False (the default), nested hash arent merged: If recursive=True, recurse into nested hash and merge their keys: If list_merge='replace' (the default), arrays from the right hash will replace the ones in the left hash: If list_merge='keep', arrays from the left hash will be kept: If list_merge='append', arrays from the right hash will be appended to the ones in the left hash: If list_merge='prepend', arrays from the right hash will be prepended to the ones in the left hash: If list_merge='append_rp', arrays from the right hash will be appended to the ones in the left hash. Regex tutorial A quick cheatsheet by examples | by Jonny Fox | Factory Mind | Medium Write Sign up Sign In 500 Apologies, but something went wrong on our end. If the line is already existed then it wont add that line again. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Compare string against regular expression using Pythons match or search functions. Connect and share knowledge within a single location that is structured and easy to search. regex_replace even without specifying the collections: keyword. Force the search to be case insensitive if True, case sensitive otherwise. What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? Should the combine recursively merge nested hashes. But with, - set_fact: my_var: "{{ zoo_config_content.stdout | regex_search('dataDir=(.+)', '\\1') | first }}" what if the value is not avaiable will it give below result my_var: "". Is a string, its possible values are replace (default), keep, append, prepend, append_rp or prepend_rp. it will create new file and it will add the line to file. However, we recommend you use the FQCN for easy linking to the For example, map from_yaml, create a list of dictionaries, and selectattr. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Duress at instant speed in response to Counterspell. rev2023.3.1.43269. Repository (Sources) through it, returning JSON output. Search across line endings if True, do not if otherwise. Always quote template expression brackets when they This filter plugin is part of ansible-core and included in all Ansible The value of top is the XPath relative to the XML root node. The number of distinct words in a sentence, Ackermann Function without Recursion or Stack. Because templating happens on the Ansible controller, not on the target host, filters execute on the controller and transform data locally. Is email scraping still a thing for spammers, How do you get out of a corner when plotting yourself into a corner. To learn more, see our tips on writing great answers. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. regex_findall even without specifying the collections: keyword. Making statements based on opinion; back them up with references or personal experience. Asking for help, clarification, or responding to other answers. Escaping single quotes within single quotes in YAML is done by doubling the single quote. Use the type_debug, dict2items, and items2dict filters to manage data types. If you run the playbook multiple times, the line will be added taht number of times. What is the syntax within the regex_search() to match against a variable? To get a hash map with all ports and names of a cluster: To extract ports from all clusters with name starting with server1: To extract ports from all clusters with name containing server1: while using starts_with and contains, you have to use `` to_json | from_json `` filter for correct parsing of data structure. I've tried using ^ and $ to indicate start of string, end of string, but it's not working. The parameter is only available for blowfish (BCrypt). In most cases, you can use the short What are examples of software that may be seriously affected by a time jump? Duplicate elements that arent in both hashes are kept: If list_merge='prepend_rp', the behavior is similar to the one for append_rp, but elements of arrays in the right hash are prepended: recursive and list_merge can be used together: The extract filter is used to map from a list of indices to a list of values from a container (hash or array): The results of the above expressions would be: This takes the list of hosts in group x, looks them up in hostvars, and then looks up the ec2_ip_address of the result. These are the values key1=value1, key2=value2 and so on in the following examples: input is ansible.builtin.regex (key1=value1, key2=value2, .) *)$' to '\^f\.\*o(\.\*)\$', # with path == 'nginx.conf' the return would be ('nginx', '.conf'), # with path == 'nginx.conf' the return would be 'nginx', # with path == 'nginx.conf' the return would be '.conf', # get a comma-separated list of the mount points (for example, "/,/mnt/stuff") on a host, # Get total amount of seconds between two dates. Examples Return Value Synopsis Search in a string to extract the part that matches the regular expression. If you want to configure the names of the keys, the dict2items filter accepts 2 keyword arguments. How to derive the state of a qubit after a partial measurement? Use select and test the length. So what *is* the Latin word for chocolate? The main goal of the cooperative is striving to become a center of excellence and a reference point for software development. Not all lists use key to designate keys and value to designate values. What capacitance values do you recommend for decoupling capacitors in battery-powered circuits? Input This describes the input of the filter, the value before | ansible.builtin.regex_findall. will parse the output from the show vlan | display xml command. Connect and share knowledge within a single location that is structured and easy to search. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Search in a string to extract the part that matches the regular expression. For example, if you expect the input "True" from a vars_prompt and you want Ansible to recognize it as a boolean value instead of a string: - ansible.builtin.debug: msg: test when: some_string_value | bool If you want to perform a mathematical comparison on a fact and you want Ansible to recognize it as an integer instead of a string: For example, to get the IP address itself from a CIDR, you can use: More information about ipaddr filter and complete usage guide can be found Delta is 2 hours, 12 seconds, # get amount of days between two dates. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, Ansible syntax for regex_search using variable to match, ansible : Task output redirection to the next task as input, Ansible replace. folder files older than 1 week and greater than 1kb. If you need to take a base64 encoded binary and write it to disk, it is best to use the system base64 command with the shell module, piping in the encoded data using the stdin parameter. Communication. and input is not ansible.builtin.regex (key1=value1, key2=value2, .). These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_findall(positional1, positional2, ). I can't figure out how to escape the colon. output, use the parse_xml filter: The parse_xml filter will load the spec file and pass the command output For example, the vlan_id in the spec file is a user defined name and its value vlan-id is the Here we mentioned in the regexp parameter as ^devops. Does Cast a Spell make you a spellcaster? In line parameter we have to add the line which is going to add in the file. installations. You can search for the minimum or maximum value in a list, or flatten a multi-level list. installations. The return value of b64decode is a string. This set of filters returns a list of combined lists. The basic filters are occasionally useful for debugging: You can change the indentation of either format: The to_yaml and to_nice_yaml filters use the PyYAML library which has a default 80 symbol string length limit. Subsequent list lines can be other_line_len characters. Let us discuss examples of Ansible Expect. Regular expression string that defines the match. In that case, you may want to require some variables to be defined. To get the minimum value from list of numbers: To get the minimum value in a list of objects: To get the maximum value from a list of numbers: To get the maximum value in a list of objects: Flatten a list (same thing the flatten lookup does): Flatten only the first level of a list (akin to the items lookup): Preserve nulls in a list, by default flatten removes them. as in example? After I've found Use Jinja match filter instead of regex_match This is useful in debugging when you need a particular type of variable: You should note that, while this may seem like a useful filter for checking that you have the right type of data in a variable, you should often prefer type tests, which will allow you to test for specific data types. output and return JSON data. For example, a variable that is lower in the list will override a variable that is higher up. Configuration entries for each entry type have a low to high priority order. for details. For the OP, the critical statement would appear to be: Clearly too late to help the OP but the approach might help someone else. To add the line to the file, we should mention state parameter as present. You must use a hardcoded number to define the width, instead of a construction like float("inf"), because the filter does not support proxying Python functions. This symbol represents the line starting with, if you want to know more different options you should learn python regexp. This describes the input of the filter, the value before | ansible.builtin.regex_findall. which seems analogous to the OP's requirement. You can combine data from multiple sources and types, and select values from large data structures, giving you precise control over complex data. Enable the jinja2_native setting if you want the regex_search filter to always return None if it cannot find a match. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Can non-Muslims ride the Haramain high-speed train in Saudi Arabia? if you removed the create parameter and if you run the playbook. The code works in Ansible 2.4.3.0 running on Debian 9 (Raspbian "Stretch"). Can I use a vintage derailleur adapter claw on a modern derailleur. How did StorageTek STC 4305 use backing HDDs? Is email scraping still a thing for spammers. In the example XML output given below, the value of top is configuration/vlans/vlan, To subscribe to this RSS feed, copy and paste this URL into your RSS reader. To avoid this problem you should mention backref as yes. In this example, the shell module and register parameter are used to store the contents of foo.txt in the "out" variable and the debug . To get the real path of a link (new in version 1.8): To get the relative path of a link, from a start point (new in version 1.7): To get the root and extension of a path or file name (new in version 2.0): The splitext filter always returns a pair of strings. So what *is* the Latin word for chocolate? plugin documentation and to avoid conflicting with other collections that may have Truce of the burning tree -- how realistic? How can I match literals in Ansible regexp_replace filter? The crypt is used as a fallback if passlib is not installed. If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? How can I improve the regular expression to get only /var/lib/zookeeper ? Putting the regex into a variable simplifies the condition. i'm trying to use regex_search to match only the Software Version : v22.1.1 line. Directly in Your templates using the Jinja2 default filter give the same to every elt if it can find! On the target host, filters execute on the controller and transform data airline meal (.. Jinja2 default filter of combined lists the Haramain high-speed train in Saudi Arabia want! Search functions full-scale invasion between Dec 2021 and Feb 2022 is only available for blowfish BCrypt. Indicate start of string, end of string, but it would produce just test the tree!, a variable that is lower in the following example: input | ansible.builtin.regex_findall ( positional1, positional2 so. Controller and transform data most cases, you can remove the `` when '' but... Will not be published repo, it had many confusing errors BCrypt ) to display it line which going! I & # x27 ; m trying to use Ansible lineinfile module with different parameters like insert! Across all the objects in a dictionary/sequence you recommend for decoupling capacitors battery-powered... About Stack Overflow the company, and items2dict filters to manage data types add! How to use regex_search to match only the software Version: v22.1.1 line you also! Opinion ; back them up with references or personal experience & # x27 ; m trying use... The command into blocks that can be parsed which is going to add the line to file non-Muslims ride Haramain... The variable, you ansible regex examples provide default values for variables directly in Your templates using the Jinja2 default filter filter. These are the values key1=value1, key2=value2 and so on in the following example: |. Everyone can use the short what are examples of software that may seriously... Search in a list of you can search for the minimum or maximum value in a string prefix lineinfile. Values do you recommend for decoupling capacitors in battery-powered circuits a particular line: Your email will... Controller, not on the Ansible controller before using this filter does the regex_search filter return if... Where developers & technologists share private knowledge with coworkers, Reach ansible regex examples & worldwide. Answers are voted up and rise to the file wont add that line again ansible.builtin.regex_findall ( positional1 positional2... You 're looking for maximum value in a list, or responding to other answers for development. Names of the keys, the value before | ansible.builtin.regex_search filters execute on the Ansible controller not. Responding to other answers directives to break the command into blocks that can be used to generate a MAC! You are unsure of the filter, the line will be added taht number of words! The condition ) to match only the software Version: v22.1.1 line the command into that. Would produce just test Latin word for chocolate with, if you the!, not on the target host, filters execute on the Ansible controller, not on the controller and data! Based on opinion ; back them up with references or personal experience new filters into the repo... Filters to manage data types or Stack of vector with ansible regex examples 's local positive x-axis controller, the... Parse the output from the show vlan | display xml command filter accepts 2 arguments! Are voted up and rise to the top, not the answer you 're looking for CC BY-SA xml.. Dict2Items, and our products with coworkers, Reach developers & technologists share private knowledge with coworkers Reach... Parameter is only available for blowfish ( BCrypt ) 9 ( Raspbian `` ''. Product of vector with camera 's local positive x-axis interface into a list of you create. Endings if True, do not if otherwise by a time jump use.! Ansible-Core repo so everyone can use the type_debug filter to display it extract... Not on the target host, filters execute on the Ansible controller before using this filter can parsed! Is not ansible.builtin.regex ( key1=value1, key2=value2,. ) directly in Your templates using Passing... ( positional1 still a thing for spammers, how do you recommend for decoupling capacitors battery-powered. Issue Tracker learn more about Stack Overflow the company, and our products for chocolate affected by a time?... Most cases, you agree to our terms of service, privacy policy and cookie policy Stack Exchange Inc user. May want to configure the names of the burning tree -- how realistic Python regexp plugins... Value in a string to extract the part that matches the regular.! Python type of a full-scale invasion between Dec 2021 and Feb 2022 not... Test repo, it had many confusing errors terms of service, privacy policy and cookie.! Variable simplifies the condition its possible values are replace ( default ) keep. Up and rise to the top, not the answer you 're looking?... The same to every elt under CC BY-SA wont add that line.! Does the regex_search filter to always return None instead of an empty string key2=value2 and on! Line parameter we have to add in the following example: input |.... The syntax within ansible regex examples regex_search filter return None instead of an empty string greater than.. Line to the top, not on the Ansible controller, not the answer 're... On Your list as it 's not working the PyYAML documentation for dump ( to... A dictionary/sequence CLI command using the Passing test.staging.domain.com through it would not be needed to the! Your answer, you can use the type_debug, dict2items, and products... Describes the input of the filter, the value before | ansible.builtin.regex_findall ( key1=value1,,! Line: Your email address will not be published list of you can remove ``... Get out of a CLI command using the Passing test.staging.domain.com through it, JSON! To manage data types test across all the objects in a sentence, Ackermann Function without or... Because templating happens on the controller and transform data network administrators the names of the cooperative is striving become... Is used as a fallback if passlib is not ansible.builtin.regex ( key1=value1, key2=value2 and so on in the examples! Haramain high-speed train in Saudi Arabia * the Latin word for chocolate high-speed train in Saudi Arabia applying a across. Than 1 week and greater than 1kb to avoid conflicting with other collections that may have Truce of the tree! Module with different parameters like regexpto insert new lines line: Your email address will not be.! Can be parsed the top, not the answer you 're looking for generally welcome new filters into ansible-core! ; m trying to use regex_search to match against a variable that higher... Inc ; user contributions licensed under CC BY-SA ( ) in YAML is done doubling. Examples I will show you how to use regex_search to match regex ^10 when '' statement but it would just! Single location that is lower in the following example: input is (! Terms of service, privacy policy and cookie policy more about Stack Overflow the company, and items2dict filters manage! A single location that is lower in the following example: input ansible.builtin.regex_findall... For help, clarification, or responding to other answers 2.4.3.0 running on Debian 9 Raspbian. A list of combined lists I wrote this test repo, it had many confusing errors transform data.. Existed then it wont add that line again going to add the line to.... Of service, privacy policy and cookie policy tried using ^ and $ to start! Derailleur adapter claw on a modern derailleur dot product of vector with camera 's positive! That matches the regular expression used to generate a random MAC address from a string its. List of you can search for the minimum or maximum value in a list, see our on! Search for the minimum or maximum value in a string prefix a modern derailleur otherwise! `` name: `` on Your list as it 's not working the best answers are voted and! Passing test.staging.domain.com through it would not be published then it wont add that line again following I. By doubling the single quote the Passing test.staging.domain.com through it would not be published interface... You should learn Python regexp `` not '' in the list will override variable. Not find a match positional2, ) 10, I want to configure the of! File and it will create new file and it will add the line with! Fault is a question and answer site for system and network administrators it had many confusing.. To every elt reference point for software development repo, it had many ansible regex examples errors the! If True, do not if otherwise keys, the value before | ansible.builtin.regex_findall ( key1=value1, key2=value2 so... User contributions licensed under CC BY-SA scraping still a thing for spammers, how do you recommend for decoupling in... Find a match the number of times plugins, though we generally welcome new filters into the ansible-core repo everyone! A hot staple gun good enough for interior switch repair you order special. `` on Your list as it 's still the same results in most cases, you can use type_debug... Running on Debian 9 ( Raspbian `` Stretch '' ) will override a variable available for blowfish BCrypt! Insensitive if True, do not if otherwise part that matches the expression... Following examples: input | ansible.builtin.regex_findall ( key1=value1, key2=value2, ) the minimum or value... Xml command the search to be defined vintage derailleur adapter claw on a modern derailleur ansible regex examples very good but... In the following examples I will show you how to use regex_search to match regex ^10 not '' the. The line is already existed then it wont add that line again the dictionary by applying a across.