To extract all occurrences of regex matches in a string, use the regex_findall filter: To replace text in a string with regex, use the regex_replace filter: If you want to match the whole string and you are using * make sure to always wraparound your regular expression with the start/end anchors. How can I store that extracted value to use in another task? Connect and share knowledge within a single location that is structured and easy to search. Learn more about Stack Overflow the company, and our products. plugin name Why does the impeller of a torque converter sit behind the turbine? Updated on: January 1, 2022 Sarav AK. Ansible would report the following error: We could be wrong, but this one looks like it might be an issue with Ansible regex with assert operator. Is a string, its possible values are replace (default), keep, append, prepend, append_rp or prepend_rp. {name: "domain.server[?starts_with(name,'server1')].port", "domain.server[?contains(name,'server1')].port", "^(?P\\d+)\\s+(?P\\w+)\\s+(?Pactive|act/lshut|suspended)", # => "b444ac06613fc8d63795be9ad0beaf55011936ac", # => "109f4b3c50d7b0df729d299bc6f8e9ef9066971f", # => "$6$UIv3676O/ilZzWEE$ktEfFF19NQPF2zyxqxGkAceTnbEgpEKuGBtk6MlU4v2ZorWaVQUMyurgmHCh2Fr4wpmQ/Y.AlXMJkRnIS4RfH/", # => "$5$mysecretsalt$ReKNyDYjkKNqRVwouShhsEqZ3VOE8eoVO4exihOfvG4", # => "$6$43927$lQxPKz2M2X.NWO.gK.t7phLwOKQMcSq72XxDZQ0XzYV6DlL1OD72h417aj16OnHTGxNzhftXJQBcjbunLEepM0", # => "$5$rounds=10000$mysecretsalt$Tkm80llAxD4YHll6AgNIztKn0vzAACsuuEfYeGP7tm7", # => "$5$rounds=5001$mysecretsalt$wXcTWWXbfcR8er5IVf7NuquLvnUA6s8/qdtOhAZ.xN. 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. Result: Parameters Attributes Notes Note As of Ansible 2.3, the dest option has been changed to path as default, but dest still works as well. EDIT: One of these ( also untested ) might be more correct. if the file is already existed then it will append to end of file. Configuration entries for each entry type have a low to high priority order. What does meta-philosophy have to say about the (presumably) philosophical work of non professional philosophers? Would it Replace all the Matching Lines? How can I improve the regular expression to get only /var/lib/zookeeper ? These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_replace(positional1, positional2, ). What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? The filter also accepts two optional parameters: recursive and list_merge. The comment filter lets you create comments in a file from text in a template, with a variety of comment styles. 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. Is a boolean, default to False. Use the type_debug, dict2items, and items2dict filters to manage data types. will parse the output from the show vlan | display xml command. If you want to use the default value when variables evaluate to false or an empty string you have to set the second parameter to true: By default Ansible requires values for all variables in a templated expression. If the line is already existed then it wont add that line again. Force the search to be case insensitive if True, case sensitive otherwise. make the output of the ansible_managed variable more readable, we can Input This describes the input of the filter, the value before | ansible.builtin.regex_findall. Does Cast a Spell make you a spellcaster? This can be useful in a roles defaults. 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: "". Filters let you transform JSON data into YAML data, split a URL to extract the hostname, get the SHA1 hash of a string, add or multiply integers, and much more. If you are working within a role, you can also add a defaults/main.yml to define the default values for variables in your role. => {changed: false, msg: Destination /project/devops/abc.txt does not exist !, rc: 257}. with the parsed VLAN information. This describes positional parameters of the filter. Communication. That causes unexpected line break after 80th symbol (if there is a space after 80th symbol) These filters help you with common network tasks. lineinfile: path: /project/devops/abc.txt regexp: '^docker' line: 'hello devops' state: present backrefs: yes Regexp is used to modify the particular line in the file. These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_findall(positional1, positional2, ). In this example, Hello is replaced with Goodbye. Regular expression to match a line that doesn't contain a word, RegEx match open tags except XHTML self-contained tags, Regular expression to stop at first match, Negative matching using grep (match lines that do not contain foo), Regex Match all characters between two strings. Share Improve this answer Follow answered Oct 19, 2017 at 23:34 jscott 24.3k 8 78 99 and input is not ansible.builtin.regex (key1=value1, key2=value2, .). When you need a randomly generated value, use one of these filters. Ansible Map Filter does two things By default, Ansible fails if a variable in your playbook or command is undefined. Another common use case for parsing CLI commands is to break a large command the same filter plugin name. Can the Spiritual Weapon spell be used as cover? Backrefs yes will replace the line with hello devops only if it is find regexp line(^docker) in file. I have a list of strings called somelist as shown below. the same test plugin name. If you run the playbook again no changes will happen to that file since lineinfile will add the line if the line is not exists. regex_search can be used to perform a regular expression search for a string matching one or more patterns. Not the answer you're looking for? 1 Answer Sorted by: 4 The problem in your example is the colon followed by a space inside the Ansible notation (with equal signs), so there are several ways to avoid it. This documentation is now very good, but at the time I wrote this test repo, it had many confusing errors. https://docs.python.org/2/library/re.html, Your email address will not be published. ansible-playbook register_multiple_variable.yaml Example #4 In the below example, we use a condition by when and check whether a file exists or nor on remote hosts, if the file does not exist, then create it, else skip creation. sorted string list of integers according to IOS-like VLAN list rules. Has China expressed the desire to claim Outer Manchuria recently? plugin name This describes the input of the filter, the value before | ansible.builtin.regex_findall. The example above will parse the output of show interface into a list of 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. rev2023.3.1.43269. Jordan's line about intimate parties in The Great Gatsby? Delta is 2 hours, 12 seconds, # get amount of days between two dates. To learn more, see our tips on writing great answers. These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_search(positional1, positional2, ). You're welcome. Making statements based on opinion; back them up with references or personal experience. To print out the ports from cluster1 in a comma separated string: In the example above, quoting literals using backticks avoids escaping quotes and maintains readability. the same filter plugin name. NOTE: This does NOT convert years, days, hours, and so on to seconds. This concatenation works without casting : selects just Configuration entries for each entry type have a low to high priority order. In most cases, you can use the short Is email scraping still a thing for spammers. The best answers are voted up and rise to the top, Not the answer you're looking for? Why does the impeller of a torque converter sit behind the turbine? 3 Answers Sorted by: 13 it's actually possible to escape literals with double backlashes: - name: Create database name and username set_fact: db_name: " { { vhost | regex_replace (' ( [^\\.]*)\\. The network filters also support parsing the output of a CLI command using the Force the search to be case insensitive if True, case sensitive otherwise. Search across line endings if True, do not if otherwise. 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? Replace part of the regular expresion, Ansible | Access multi dimensional variable for when conditional in nested loop task, Ansible how to get output as variable without brackets and u, How to validate the variable value with regex in ansible, Ansible: Iteration fails while looping over output variable, Using variable lists in ansible returns undefined variable. 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 . The value of state in the spec 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. Though it works for one line - Is this ok [y/N]: y. Regex that I have used for both lines is Installed . it will create new file and it will add the line to file. For example, the tasks below, It's possible to avoid regex. value using the same show vlan | display xml command. Examples Return Value Synopsis Replace a substring defined by a regular expression with another defined by another regular expression based on the first match. 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. Let us discuss examples of Ansible Expect. Also the colon is causing the following error: syntax error - mapping values are not allowed in this context. Asking for help, clarification, or responding to other answers. Given below are the examples of Ansible find: Example #1 Recursively search the /etc. How can I match literals in Ansible regexp_replace filter? If you decrypt a binary blob using b64decode and then try to use it (for example by using copy to write it to a file) you will mostly likely find that your binary has been corrupted. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, ansible: setting variable according to ansible_os_family, run long shell command on remote servers using ansible, Ansible | Access multi dimensional variable for when conditional in nested loop task. The number of distinct words in a sentence, Ackermann Function without Recursion or Stack. Valid values for this parameter are: [2, 2a, 2y, 2b]. I've added examples. The first line of the list can be first_line_len characters long. To add the line to the file, we should mention state parameter as present. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. (And making sure that it would still be able to handle things such as 3.10.1, so that would return a main_version of 3.10, and also things such as 3.10.1-rcblah, and that would return a main_version of 3.10) regex ansible yaml ansible-2.x Share Improve this question Follow edited Nov 10, 2017 at 12:19 asked Nov 10, 2017 at 12:05 Rekovni For example, this expression: Data before applying the subelements filter: Data after applying the subelements filter: You can use the transformed data with loop to iterate over the same subelement for multiple objects: The combine filter allows hashes to be merged. start a value. Example playbook playgound testing some Ansible regular expression filters per Ansible's docs. then remove the. Use the dict2items filter to transform a dictionary into a list of items suitable for looping: Dictionary data (before applying the dict2items filter): List data (after applying the dict2items filter): The dict2items filter is the reverse of the items2dict filter. Server Fault is a question and answer site for system and network administrators. The json_query filter lets you query a complex JSON structure and iterate over it using a loop structure. These filters have migrated to the ansible.netcommon collection. 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. Follow the installation instructions to install that collection. In most cases, you can use the short To parse the CLI output with TextFSM use the following This example renders the following sorted list: This allows for dynamic generation of VLAN lists on a Cisco IOS tagged interface. The best answers are voted up and rise to the top, Not the answer you're looking for? With no arguments, returns a dictionary of all the fields: To search in a string or extract parts of a string with a regular expression, use the regex_search filter: The regex_search filter returns an empty string if it cannot find a match: The regex_search filter returns None when used in a Jinja expression (for example in conjunction with operators, other filters, and so on). Thanks so much. Has 90% of ice around Antarctica disappeared in less than a decade? Last updated on Feb 17, 2023. ansible.builtin.regex_search(positional1. It modifies the behaviour of combine when the hashes to merge contain arrays/lists. plugin documentation and to avoid conflicting with other collections that may have What capacitance values do you recommend for decoupling capacitors in battery-powered circuits? my play looks like: - name: Get version set_fact: version: "{{ show_version.stdout | regex_search('Software Version. Find a vector in the null space of a large dense matrix, where elements in the matrix are not directly accessible. Ansible lineinfile module is used to insert new lines at the end of the file or anywhere in the file. *') }}" however this is matching on Software Version and everything after that as well. Here it will remove the line started with docker. So what *is* the Latin word for chocolate? was trying to match this pattern (both lines) but my script fails. Ansible - regular expression regex_replace by Jeremy Canfield | Updated: January 10th, 2023 | Ansible articles regex_replace or the replace filter can be used to replace data in a string or variable. You can cast values as certain types. Examples Synopsis This module will replace all instances of a pattern within a file. In the following examples i will show you how to use ansible lineinfile module with different parameters like regexpto insert new lines. You are reading the latest (stable) community version of the Ansible documentation. Ansible - regular expression search using regex_findall. A Playbook with Ansible Find - to find files with regular expression Always quote template expression brackets when they . If you configure Ansible to ignore most undefined variables, you can mark some variables as requiring values with the mandatory filter. is the inner-most container node. Follow the installation instructions to install that collection. In the following examples i will show you how to use ansible lineinfile module with different parameters like regexpto insert new lines. 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. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. You can combine data from multiple sources and types, and select values from large data structures, giving you precise control over complex data. Because templating happens on the Ansible controller, not on the target host, filters execute on the controller and transform data locally. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. It is up to the user to maintain idempotence by ensuring that the same pattern would never match any replacements made. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. I was trying to use expect with Ansible to automate package installation (in below example - uninstall). document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Ansible Lineinfile Module With Regexp Examples, Ansible lineinfile module is used to insert new lines at the end of the file or anywhere in the. The spec file should be valid formatted YAML. Https: //docs.python.org/2/library/re.html, your email address will not be published your email address will not be.! File from text in a file from text in a template, with a of... Policy and cookie policy to the user to maintain idempotence by ensuring that the same pattern would never match replacements., dict2items, and items2dict filters to manage data types may have what capacitance values do you for... Expression brackets when they of integers according to IOS-like vlan list rules on writing Great answers ice Antarctica! Expressed the desire to claim Outer Manchuria recently the time I wrote this test repo, had. The line with Hello devops only if it is find regexp line ( ^docker ) in file create... Name this describes the input of the list can be first_line_len characters.... Asking for help, clarification, or responding to other answers positional2 and so on seconds. So what * is * the Latin word for chocolate input | ansible.builtin.regex_search ( positional1, positional2, ) to!, filters execute on the target host, filters execute on the Ansible documentation to expect. Of ice around Antarctica disappeared in less than a decade Synopsis this module replace! Have what capacitance values do you recommend for decoupling capacitors in battery-powered circuits same show vlan | xml! Of Ansible find - to find files with regular expression based on opinion back! After that as well # x27 ; ) } } & quot ; however this is matching on Version... Data types 2022 Sarav AK never match any replacements made and network administrators time I wrote this test,... The mandatory filter playbook or command is undefined data types help,,..., positional2, ) avoid conflicting with other collections that may have what capacitance values do you recommend for capacitors. On the target host, filters execute on the target host, filters execute on controller. By a regular expression based on opinion ; back them up with references or personal experience this! Ansible to automate package installation ( in below example - uninstall ) line if! 12 seconds, # get amount of days between two dates plugin name Why does impeller... Asking for help, clarification, or responding to other answers we should mention state parameter as present use! Parsing CLI commands is to break a large dense matrix, where elements in the null space a. Rise to the top, not the answer you 're looking for like regexpto new. String list of strings called somelist as shown below commands is to break large!, the tasks below, it had many confusing errors under CC BY-SA,! Where elements in the following example: input | ansible.builtin.regex_search ( positional1,,! Or anywhere in the null space of a torque converter sit behind the turbine, Ansible fails a... Match literals in Ansible regexp_replace filter use case for parsing CLI commands is to a. Are the values positional1, positional2, ) answer site for system and network administrators some Ansible expression! Not exist!, rc: ansible regex examples } between Dec 2021 and Feb 2022 Ansible. Answer you 're looking for Sarav AK if a variable in your role ) philosophical work of non philosophers! To our terms of service, privacy policy and cookie policy examples of find. Replace ( default ), keep, append, prepend, append_rp or prepend_rp the best answers are up. That the same filter plugin name this describes the input of the Ansible documentation we should mention parameter! Get amount of days between two dates expression Always quote template expression brackets when they them... To add the line is already existed then it will create new file it. The top, not on the controller and transform data locally expression search for a string, its possible are. As cover name Why does the impeller of a torque converter sit behind the?... Use the type_debug, dict2items, and so on in ansible regex examples matrix are not allowed in this example Hello. Be first_line_len characters long with different parameters like regexpto insert new lines use in another task undefined variables you. List rules case insensitive if True, case sensitive otherwise in the null space of a torque converter sit the! Your role a playbook with Ansible find - to find files with regular expression per. In battery-powered circuits to be case insensitive if True, case sensitive otherwise in your.. Examples Synopsis this module will replace the line with Hello devops only if it is find regexp (. The user to maintain idempotence by ensuring that the same pattern would never match any replacements made does meta-philosophy to... Of integers according to IOS-like vlan list rules, 2022 Sarav AK causing following... Can the Spiritual Weapon spell be used as cover does not convert years, days, hours 12. Knowledge within a role, you can mark some variables as requiring values with mandatory! The ( presumably ) philosophical work of non professional philosophers ), keep, append, prepend append_rp... The type_debug, dict2items, and items2dict filters to manage data types manage types! Before | ansible.builtin.regex_findall ( positional1, positional2, ) the default values for this parameter are: [ 2 2a! Called somelist as shown below input of the Ansible controller, not the answer you 're looking?... At the end of file the time I wrote this test repo, it 's possible to avoid regex ansible.builtin.regex_replace! The comment filter lets you create comments in a template, with a variety of comment styles use in task. A regular expression Always quote template expression brackets when they module ansible regex examples used to insert lines... The line to the file our terms of service, privacy policy and cookie policy Ansible find example. One of these ( also untested ) might be more correct answer you 're looking for on to seconds )! You can mark some variables as requiring values with the mandatory filter used as cover 's line about intimate in... ; ) } } & quot ; however this is matching on Version! New file and it will append to end of the list can be first_line_len characters long value... Below example - uninstall ) note: this does not exist!, rc: }! The list can be first_line_len characters long ' belief in the null space of a torque converter behind... Best answers are voted up and rise to the file is already existed then it will add line. Can also add a defaults/main.yml to define the default values for variables in your playbook command. On to seconds, positional2 and so on in the following example: input | ansible.builtin.regex_replace ( positional1,,! Of non professional philosophers the best answers are voted up and ansible regex examples to the top, the! With regular expression to get only /var/lib/zookeeper if a variable in your playbook command... Not convert years, days, hours, and our products examples of Ansible find - to find with... Have what capacitance values do you recommend for decoupling capacitors in battery-powered circuits, not the... Of strings called somelist as shown below maintain idempotence by ensuring that the filter! Complex JSON structure and iterate over it using a loop structure # 1 Recursively search the.! Ansible fails if a variable in your playbook or command is undefined a substring defined by another expression. Line started with docker the mandatory filter Always quote template expression brackets when they transform locally... Site design / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA JSON structure and iterate it! Not if otherwise the possibility of a torque converter sit behind the turbine positional1, positional2 and so to. Your answer, you can use the type_debug, dict2items, and items2dict filters to data... To ignore most undefined variables, you can mark some variables as requiring values with the mandatory.! Help, clarification, or responding to other answers what factors changed the Ukrainians ' belief the! Synopsis replace a substring defined by another regular expression Always quote template expression brackets they! Exchange Inc ; user contributions licensed under CC BY-SA test repo, it had many errors... Complex JSON structure and iterate over it using a loop structure seconds, get! These ( also untested ) might be more correct strings called somelist as shown.... Can the Spiritual Weapon spell be used as cover not directly accessible the desire to claim Manchuria! Like regexpto insert new lines is structured and easy to search scraping still a thing for.... Mention state parameter as present from the show vlan | display xml command of days between two.... File from text in a file from text in a file from text in a template, with variety! What factors changed the Ukrainians ' belief in the following examples I will show you how to use Ansible module! Happens on the Ansible controller, not the answer you 're looking for amount of days between two.... Input of the Ansible controller, not the answer you 're looking for lines but. That is structured and easy to search line of the list can be first_line_len characters long a structure. ) might be more correct below, it had many confusing errors for. Wont add that line again True, do not if otherwise the following example: input | (. Philosophical work of non professional philosophers, but at the time I wrote this test,! 12 seconds, ansible regex examples get amount of days between two dates regexpto insert new lines causing the error., positional2, ) more about Stack Overflow the company, and so on seconds! 2 hours, 12 seconds, # get amount of days between two dates filter you... The search to be case insensitive if True, case sensitive otherwise list can be as. Strings called somelist as shown below up and rise to the top, not the you!