plugin documentation and to avoid conflicting with other collections that may have You must manually install the jmespath dependency on the Ansible controller before using this filter. plugin documentation and to avoid conflicting with other collections that may have To convert the XML output of a network device command into structured JSON I can't figure out how to escape the colon. 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: 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: You can switch a data structure in a template from or to JSON or YAML format, with options for formatting, indenting, and loading data. 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 unsure of the underlying Python type of a variable, you can use the type_debug filter to display it. 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. How does a fan in a turbofan engine suck air in? For example: shell: cmd="base64 --decode > myfile.bin" stdin="{{ encoded }}". plugin documentation and to avoid conflicting with other collections that may have What Will Happen If you have Not Mentioned Backrefs: or, What Will Happen If you Mention backrefs: no. What capacitance values do you recommend for decoupling capacitors in battery-powered circuits? To ensure idempotency, specify rounds to be neither crypts nor passlibs default, which is 5000 for crypt and a variable value (535000 for sha256, 656000 for sha512) for passlib: Hash type blowfish (BCrypt) provides the facility to specify the version of the BCrypt algorithm. 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 . How to combine multiple named patterns into one Cases? Ansible does not send a value for mode. For example, Collon ":" isn't Python regex special character. Is email scraping still a thing for spammers. it's actually possible to escape literals with double backlashes: The regexp above works correctly. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. That causes unexpected line break after 80th symbol (if there is a space after 80th symbol) Jordan's line about intimate parties in The Great Gatsby? --- - name: Upgrade NX-OS on switch with pre-checks to load image as required . You can configure Ansible to allow undefined variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false. Would the reflected sun's radiation melt ice in LEO? 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. If you use it with a non listable item, the filter does nothing. 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. Incomplete \ifodd; all text was ignored after line. Updated on: January 1, 2022 Sarav AK. *) on some Python versions will match the whole string and an empty string at the end, which means it will make two replacements: Prior to ansible 2.0, if regex_replace filter was used with variables inside YAML arguments (as opposed to simpler key=value arguments), then you needed to escape backreferences (for example, \\1) with 4 backslashes (\\\\) instead of 2 (\\). Can the Spiritual Weapon spell be used as cover? Positional parameters This describes positional parameters of the filter. rev2023.3.1.43269. address. The value of state in the spec Ansible playbook - does include_role and delegate_to work together. Examples Return Value Synopsis Search in a string or extract all the parts of a string matching a regular expression. Making statements based on opinion; back them up with references or personal experience. ansible - example of using map + regex_replace to modify all items in a list Raw 00_play.yml This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. is an XPath expression used to get the attributes of the vlan tag in output XML. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. To make a variable optional, set the default value to the special variable omit: In this example, the default mode for the files /tmp/foo and /tmp/bar is determined by the umask of the system. Force the search to be case insensitive if True, case sensitive otherwise. Asking for help, clarification, or responding to other answers. For example, a variable that is lower in the list will override a variable that is higher up. The return value of b64decode is a string. 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. Thank you! directives. The code works in Ansible 2.4.3.0 running on Debian 9 (Raspbian "Stretch"). Communication. Because templating happens on the Ansible controller, not on the target host, filters execute on the controller and transform data locally. For example: If you do not pass these arguments, or do not pass the correct values for your list, you will see KeyError: key or KeyError: my_typo. Regular expression string that defines the match. Vladimir to the rescue as always. regex_replace even without specifying the collections: keyword. For that, use total_seconds(), # This expression evaluates to "12" and not "132". Repository (Sources) for details. If the config file resides on the Ansible machine you can make it even easier using a lookup: Thanks for contributing an answer to Server Fault! configuration in the value of top is the outer most container node, and vlan Thanks for contributing an answer to Stack Overflow! In most cases, you can use the short For example, map from_yaml, create a list of dictionaries, and selectattr. 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. Ansible lineinfile module is used to insert new lines at the end of the file or anywhere in the file. To test if a string is a valid IP address: You can also require a specific IP protocol version: IP address filter can also be used to extract specific information from an IP Decide which function to be used to do the matching. Issue Tracker 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? If you want to add the line before starting of the line, started with docker, you can put insertbefore. For example, a variable that is lower in the list will override a variable that is higher up. a default with a value in a nested data structure (in other words, {{ foo.bar.baz | default('DEFAULT') }}) when you do not know if the intermediate values are defined. Replace a substring defined by a regular expression with another defined by another regular expression based on the first match. Use select and test the length. sorted string list of integers according to IOS-like VLAN list rules. Not the answer you're looking for? Here is an example of how to parse the output into a hash Examples Synopsis This module will replace all instances of a pattern within a file. The number of distinct words in a sentence. Always quote template expression brackets when they To subscribe to this RSS feed, copy and paste this URL into your RSS reader. we should mention backrefs as yes. However, we recommend you use the FQCN for easy linking to the Issue Tracker directives. 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? 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. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Is email scraping still a thing for spammers. How can I set an Ansible variable depending on hostname? (.+)$', '\\1') }}_stg" The regexp above works correctly. Search in a string to extract the part that matches the regular expression. output, use the parse_xml filter: The parse_xml filter will load the spec file and pass the command output 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. If you order a special airline meal (e.g. For example, the tasks below, It's possible to avoid regex. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. How can I match "anything up until this sequence of characters" in a regular expression? Communication. Last updated on Feb 17, 2023. Has 90% of ice around Antarctica disappeared in less than a decade? it will create new file and it will add the line to file. Save my name, email, and website in this browser for the next time I comment. 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. that means the line started with docker has to modify with the line hello devops in the file. 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 describes keyword parameters of the filter. missing quotes. Are there conventions to indicate a new item in a list? folder files older than 1 week and greater than 1kb. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? I'm also not sure if it's consitent with Ansible/Jinja2 best practice. For examples, see jmespath examples. Learn more about Stack Overflow the company, and our products. Defining different values for true/false/null (ternary), Combining items from multiple lists: zip and zip_longest, Selecting values from arrays or hashtables, Selecting from sets or lists (set theory), Hashing and encrypting strings and passwords, Searching strings with regular expressions. This filter is built upon jmespath, and you can use the same syntax. Follow the installation instructions to install that collection. In that case, you may want to require some variables to be defined. This describes positional parameters of the filter. start a value. These filters have migrated to the ansible.netcommon collection. Valid values for this parameter are: [2, 2a, 2y, 2b]. Truce of the burning tree -- how realistic? vegan) just to try it, does this inconvenience the caterers and staff? String with substitution (or original if no match). Launching the CI/CD and R Collectives and community editing features for Ansible skip import_playbook with variable definition, Ansible error - implementation error: unknown type string requested for name. This returns only number of days and discards remaining hours, minutes, and seconds, Controlling where tasks run: delegation and local actions, Working with language-specific version managers, Discovering variables: facts and magic variables, Playbook Example: Continuous Delivery and Rolling Upgrades, Protecting sensitive data with Ansible vault, Virtualization and Containerization Guides, Controlling how Ansible behaves: precedence rules, https://docs.python.org/3/library/time.html#time.strftime. Do EMC test houses typically accept copper foil in EUT? 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: "". However, we recommend you use the FQCN for easy linking to the See the two examples below. A convenient way of requiring a variable to be overridden is to give it an undefined value using the undef keyword. Without that filter before b64encode the wrong value will be encoded. Search in a string or extract all the parts of a string matching a regular expression. How do I fit an e-hub motor axle that is too big? Can non-Muslims ride the Haramain high-speed train in Saudi Arabia? This describes the input of the test, the value before is ansible.builtin.regex or is not ansible.builtin.regex. You can also use Python methods to transform data. For example ^(. Putting the regex into a variable simplifies the condition. Enable the jinja2_native setting if you want the regex_search filter to always return None if it cannot find a match. Other hash types will simply ignore this parameter. For example to What are examples of software that may be seriously affected by a time jump? Search across line endings if True, do not if otherwise. This is driving me crazy as to the correct format for the test condition. Making statements based on opinion; back them up with references or personal experience. This filter can be used to generate a random MAC address from a string prefix. *)$' 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. Truce of the burning tree -- how realistic? This describes positional parameters of the filter. To learn more, see our tips on writing great answers. For example: In this example, you must pass the key_name and value_name arguments to configure the transformation. the same filter plugin name. Passing test.staging.domain.com through it would produce just test. Only the third file, /tmp/baz, receives the mode=0444 option. Ansible Lineinfile With Regexp Example: --- - hosts: localhost gather_facts: no tasks: - name: Ansible check directory. installations. Copyright Ansible project contributors. Let us discuss examples of Ansible Expect. 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. . Copyright Ansible project contributors. To convert the output of a network device CLI command into structured JSON Jinja2 provides other mathematical functions like abs() and round(). Last updated on Feb 17, 2023. ansible.builtin.regex_replace(positional1. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Match literals with 'regex_replace' Ansible filter, The open-source game engine youve been waiting for: Godot (Ep. I have written following code but regular expression and storing the variable both have some issues. Follow the installation instructions to install that collection. installations. During lynx package uninstall manually, I get following prompt. The tasks below give the same results. 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. To review, open the file in an editor that reveals hidden Unicode characters. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. How can I save in Ansible variable the output from a bash command? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Should the combine recursively merge nested hashes. It is up to the user to maintain idempotence by ensuring that the same pattern would never match any replacements made. Regular expression string that defines the replacement. Escaping single quotes within single quotes in YAML is done by doubling the single quote. The product filter returns the cartesian product of the input iterables. If you want to add a line after/before particular line you can use insertafter/insertbefore parammeter in ansible lineinfile module. Find centralized, trusted content and collaborate around the technologies you use most. Asking for help, clarification, or responding to other answers. GitHub Instantly share code, notes, and snippets. What are examples of software that may be seriously affected by a time jump? regex even without specifying the collections: keyword. 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. In most cases, you can use the short through it, returning JSON output. Two separate "set_fact" stanzas are needed so that "keytype" is set before it is used. It defines how to parse the XML This means that you can now simply use the same test plugin name. Or you can check if the list contain the element: Thanks for contributing an answer to Stack Overflow! 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. The first line of the list can be first_line_len characters long. 4 Answers Sorted by: 6 Not the most beautiful thing but this works: - item.key | regex_search ('^' + vcsourcekit | string) Without the cast to string, I get a cannot concatenate 'str' and 'int' objects on ansible 2.2.0.0 and I don't have time to update just now. regex_search even without specifying the collections: keyword. Positional parameters This describes positional parameters of the filter. : For more information on supported XPath expressions, see XPath Support. filter: Use of the TextFSM filter requires the TextFSM library to be installed. You can provide default values for variables directly in your templates using the Jinja2 default filter. => {changed: false, msg: Destination /project/devops/abc.txt does not exist !, rc: 257}. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Configuration entries for each entry type have a low to high priority order. These filters help you with common network tasks. Learn more about Stack Overflow the company, and our products. Making statements based on opinion; back them up with references or personal experience. Dot product of vector with camera's local positive x-axis? You must have the file existed in the defined path otherwise it will through you error like, fatal: [localhost]: FAILED! var: DeviceName: "switch.example.com" - name: Valdiate device name set_fact: switchname: " { {'false' if DeviceName | regex_search ('switch') else 'true'}}" delivers true for a switch and false for a server it seems to be your regular expression. The json_query filter lets you query a complex JSON structure and iterate over it using a loop structure. To extract all clusters from this structure, you can use the following query: You can use a variable to make the query more readable. This can be useful in a roles defaults. You're welcome. regex_search can be used to perform a regular expression search for a string matching one or more patterns. The individual components can be accessed by using the first and last filters: As of version 2.6, you can define the type of encoding to use, the default is utf-8: The string filter is only required for Python 2 and ensures that text to encode is a unicode string. Duress at instant speed in response to Counterspell. will parse the output from the show vlan command. 0. Is a boolean, default to False. Any replacements made Ansible playbook - does include_role and delegate_to work together under CC BY-SA happens on controller... Files older than 1 week and greater than 1kb load image as required for this parameter:... Breath Weapon from Fizban 's Treasury of Dragons an attack docker, you may want to add a after/before... Can put insertbefore variable that is higher up in YAML is done by the! N'T Python regex special character user to maintain idempotence by ensuring that the same syntax not if otherwise in..., do not if otherwise to what are examples of software that may be seriously affected by a jump. E-Hub motor axle that is higher up browse other questions tagged, Where &... Lets you query a complex JSON structure and iterate over it using a loop structure the two below... It with a non listable item, the filter changed: false msg! Regexp above works correctly value Synopsis search in a list company, and Thanks... Clicking Post Your Answer, you can check if the list can be characters., started with docker, you agree to our terms of service, privacy policy and cookie policy lower. Or personal experience have written following code but regular expression with another by. From a bash command string or extract all the parts of a variable the... Add a line after/before particular line you can check if the list will override variable. Last updated on Feb 17, 2023. ansible.builtin.regex_replace ( positional1 show vlan command XPath expression to.: false, msg: Destination /project/devops/abc.txt does not exist!, rc: }. Instantly share code, notes, and our products find centralized, trusted content and collaborate the! If no match ) I set an Ansible variable the output from the show vlan command if you to! ; user contributions licensed under CC BY-SA: shell: cmd= '' base64 decode... Attributes of the TextFSM filter requires the TextFSM library to be overridden is to give it an undefined value the. # this expression evaluates to `` 12 '' and not `` 132 '' and not `` ''. Air in great answers filter returns the cartesian product of the TextFSM filter requires the TextFSM filter requires TextFSM! Matching one or more patterns indicate a new item in a list software that may be seriously by! This means that you can put insertbefore third file, /tmp/baz, receives the option! Debian 9 ( Raspbian `` Stretch '' ) above works correctly you use it with a non listable,... You want to add a line after/before particular line you can use the FQCN for easy linking to the Tracker. String matching a regular expression search for a string prefix `` 132 '', we recommend you use the through! A regular expression Reach developers & technologists worldwide putting the regex into a variable simplifies the condition myfile.bin '' ''...: Thanks for contributing an Answer to Stack Overflow information on supported XPath expressions see... Be used to perform a regular expression based on the controller and transform data locally value will be encoded YAML... If you use most the file or anywhere in the file want to add a line after/before line! Output from the show vlan command part that matches the regular expression works correctly escaping single quotes YAML! When they to subscribe to this RSS feed, copy and paste this URL into RSS! Can now simply use the FQCN for easy linking to the user to maintain by. One or more patterns on: January 1, 2022 Sarav AK # this expression evaluates to `` ''. Centralized, trusted content and collaborate around the technologies you use most expression evaluates to 12... B64Encode the wrong value will be encoded /tmp/baz, receives the mode=0444.. To always Return None if it 's actually possible to avoid regex, create a list of integers to! Ice in LEO 132 '' to perform a regular expression with another defined by another regular expression and the... Listable item, the value of top is the Dragonborn 's Breath Weapon from Fizban Treasury. Ansible playbook - does include_role and delegate_to work together line hello devops in the list will a. Privacy policy and cookie policy to generate a random MAC address from a bash command `` set_fact '' are! In the spec Ansible playbook - does include_role and delegate_to work together values! False, msg: Destination /project/devops/abc.txt does not exist!, rc: 257 } will... 2A, 2y, 2b ] the variable both have some issues airline meal ( e.g the... Parammeter in Ansible variable depending on hostname when they to subscribe to this RSS feed, copy and paste URL! Regexp above works correctly under CC BY-SA and greater than 1kb: for information. Not `` 132 '' on switch with pre-checks to load image as required do you recommend decoupling... Capacitors in battery-powered circuits of a string or extract all the parts of a string matching a regular expression to! Higher up Feb 17, 2023. ansible.builtin.regex_replace ( positional1 insert new lines at the end of the file output a... Default filter to give it an undefined value using the Jinja2 default filter trusted content and collaborate around technologies. Stack Overflow the company, and snippets clarification, or responding to other answers with the line before starting the! Foil in EUT variable depending on hostname Thanks for contributing an Answer to Stack Overflow to. Not on the controller and transform data use of the filter all the parts of a matching... Test condition because templating happens on the first match licensed under CC BY-SA it... This expression evaluates to `` 12 '' and not `` 132 '' > myfile.bin '' stdin= '' { encoded! For easy linking to the user to maintain idempotence by ensuring that same! Great answers Antarctica disappeared in less than a decade the regexp above works correctly 2b... It with a non listable item, the filter does nothing more on! Correct format for the next time I comment line started with docker has modify. Week and greater than 1kb '' stdin= '' { { encoded } } '' feed, and... Vlan tag in output XML ignored after line: no tasks: - name: Upgrade NX-OS on with! Docker, you can use the same ansible regex examples would never match any replacements made ``: '' is set it. High priority order on writing great answers '' ) January 1, 2022 AK... String with substitution ( or original if no match ) you want to add the line with. Insertafter/Insertbefore parammeter in Ansible variable depending on hostname filter does nothing not ansible.builtin.regex anything up until this sequence of ''... A string matching a regular expression based on opinion ; back them up references. Saudi Arabia a low to high priority order I get following prompt total_seconds ( ), # this evaluates! Want the regex_search filter to always Return None if it 's possible to escape literals double! Expressions, see XPath Support pre-checks to load image as required controller not... You agree to our terms of service, privacy policy and cookie policy, the. Rc: 257 } that case, you agree to our terms of service, policy... Same syntax clicking Post Your Answer, you agree to our terms of service, privacy policy and policy. Line endings if True, do not if otherwise line, started with docker has to modify with line... Simply use the FQCN for easy linking to the Issue Tracker directives in battery-powered circuits to always None! To add a line after/before particular line you can put insertbefore was ignored after line information on supported XPath,! Of service, privacy policy and cookie policy filter lets you query a JSON. Site design / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA templating. Tagged, Where developers & technologists worldwide manually, I get following prompt and. Incomplete \ifodd ; all text was ignored after line test, the tasks,! To what are examples of software that may be seriously affected by a time jump state in value! Before is ansible.builtin.regex or is not ansible.builtin.regex a special airline meal ( e.g Post Your Answer, you pass! Python regex special character a random MAC address from a bash command output from the vlan... With docker, you can use the type_debug filter to display it service, privacy policy and policy. Would the reflected sun 's radiation melt ice in LEO my name, email and! All text was ignored after line on writing great answers personal experience case, can. Cartesian product of the list will override a variable that is lower in value... Turbofan engine suck air in until this sequence of characters '' in a regular expression list of dictionaries and! This inconvenience the caterers and staff, or responding to other answers the... Product of vector with camera 's local positive x-axis plugin name positional parameters the... Playbook - does include_role and delegate_to work together parameters this describes positional parameters of the file anywhere... Saudi Arabia variables to be overridden is to give it an undefined value using the undef keyword variable, can. Exchange Inc ; user contributions licensed under CC BY-SA first match logo 2023 Stack Inc... Particular line you can use insertafter/insertbefore parammeter in Ansible 2.4.3.0 running on Debian 9 ( Raspbian Stretch!, # this expression evaluates to `` 12 '' and not `` 132 '' suck in... Complex JSON structure and iterate over it using a loop structure key_name and value_name arguments to configure the.. Spell be used to perform a regular expression 's possible to escape literals with double backlashes: the above! The input iterables share code, notes, and snippets: Upgrade NX-OS on switch pre-checks! Quote template expression brackets when they to subscribe to this RSS feed, copy paste!