plugin name In most cases, you can use the short These are the values key1=value1, key2=value2 and so on in the following examples: input is ansible.builtin.regex (key1=value1, key2=value2, .) 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 . Is a hot staple gun good enough for interior switch repair? Passing test.staging.domain.com through it would produce just test. It defines how to parse the CLI Calling Ansible hostvars group variable at later point in play, How to properly manage Ansible regex for network device, Rename .gz files according to names in separate txt-file. This filter plugin is part of ansible-core and included in all Ansible These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_findall(positional1, positional2, ). Making statements based on opinion; back them up with references or personal experience. 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. Examples Return Value Synopsis Search in a string to extract the part that matches the regular expression. ansible.builtin.regex_search(key1=value1, 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_search filter extract regex match from string. Why does the impeller of a torque converter sit behind the turbine? Thank you! Ansible: regex to search for a specific string in list, The open-source game engine youve been waiting for: Godot (Ep. : For more information on supported XPath expressions, see XPath Support. Last updated on Feb 17, 2023. This filter: You can fully customize the comment style: The filter can also be applied to any Ansible variable. Has 90% of ice around Antarctica disappeared in less than a decade? and input is not ansible.builtin.regex (key1=value1, key2=value2, .). rev2023.3.1.43269. was trying to match this pattern (both lines) but my script fails. If you run the playbook multiple times, the line will be added taht number of times. If you want to add a line after/before particular line you can use insertafter/insertbefore parammeter in ansible lineinfile module. Regular expression string that defines the match. To convert the XML output of a network device command into structured JSON 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. To learn more, see our tips on writing great answers. you can remove the "name: " on your list as it's still the same to every elt. EDIT: One of these ( also untested ) might be more correct. You can search for the minimum or maximum value in a list, or flatten a multi-level list. Configuration entries for each entry type have a low to high priority order. For example, a variable that is lower in the list will override a variable that is higher up. make the output of the ansible_managed variable more readable, we can Ansible regex with assert operator. For example, a variable that is lower in the list will override a variable that is higher up. The value of top is the XPath relative to the XML root node. Here i used path parameter, path parameter tells the lineinfile to which file it has to modify So in the path parameter we should mention path of the file which we are going to modify. 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. Use select and test the length. Without that filter before b64encode the wrong value will be encoded. The best answers are voted up and rise to the top, Not the answer you're looking for? Ansible Map Filter does two things To get a random list from an existing list: You can initialize the shuffle generator from a seed to generate a random-but-idempotent order: The shuffle filter returns a list whenever possible. missing quotes. 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. ansible.builtin.regex_replace(key1=value1, # piratecomment => '#CAR\n#tar\nfoo\n#bar\n', 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_replace filter replace a string via regex. Q1.) Dot product of vector with camera's local positive x-axis? Regexp is used to modify the particular line in the file. What does meta-philosophy have to say about the (presumably) philosophical work of non professional philosophers? NOTE: This does NOT convert years, days, hours, and so on to seconds. Would it Replace all the Matching Lines? Valid values for this parameter are: [2, 2a, 2y, 2b]. plugin documentation and to avoid conflicting with other collections that may have installations. will parse the output from the show vlan command. If you order a special airline meal (e.g. Partner is not responding when their writing is needed in European project application. The Xpath expression is relative to the value of the XPath value contained in top. Replace a substring defined by a regular expression with another defined by another regular expression based on the first match. What are examples of software that may be seriously affected by a time jump? The debug looks like: 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. If you are unsure of the underlying Python type of a variable, you can use the type_debug filter to display it. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? 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. What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? This is due to historic behavior and the custom re-implementation of some of the Jinja internals in Ansible. : You can select or combine items from sets or 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. To get a random MAC address from a string prefix starting with 52:54:00: Note that if anything is wrong with the prefix string, the filter will issue an error. I've added examples. This is roughly equivalent to nested for-loops in a generator expression. 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. The value of state in the spec Would the reflected sun's radiation melt ice in LEO? It seems that "match" requires a pattern that matches the whole string, hence the *. Last updated on Feb 17, 2023. ansible.builtin.regex_search(positional1. The YAML spec file defines how to parse the CLI output. end_block directives to break the command into blocks that can be parsed. Ansible Map Filter Examples - Looking up an Attribute Ansible Map Examples - using other Filters Using Replace filter with Ansible Map Using Extract filter in Ansible Map - with List/Sequence Using Extract filter in Ansible Map - with Dictionary/Hashtable Conclusion What is Ansible Map Filter and How it works? We check the file's existence, simply by ls, and check the return code. sorted string list of integers according to IOS-like VLAN list rules. Enable the jinja2_native setting if you want the regex_search filter to always return None if it cannot find a match. Communication. Connect and share knowledge within a single location that is structured and easy to search. These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_search(positional1, positional2, ). The parameter is only available for blowfish (BCrypt). 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 (' ( [^\\.]*)\\. Would the reflected sun's radiation melt ice in LEO? The spec file should be valid formatted YAML. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. regex_replace even without specifying the collections: keyword. Find centralized, trusted content and collaborate around the technologies you use most. 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. This is driving me crazy as to the correct format for the test condition. Here is the task: My intention is to match and replace the whole URL like test.staging.domain.com with its first part (test in the example). The filter also accepts two optional parameters: recursive and list_merge. To avoid such behavior and generate long lines, use the width option. These filters have migrated to the kubernetes.core collection. That causes unexpected line break after 80th symbol (if there is a space after 80th symbol) value using the same show vlan command. Is email scraping still a thing for spammers. installations. Jinja2 provides other mathematical functions like abs() and round(). This describes keyword parameters of the filter. Search across line endings if True, do not if otherwise. "domain.server[?cluster=='cluster2']. 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. if you removed the create parameter and if you run the playbook. 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 I'm having a content like below inside a file. When you need a randomly generated value, use one of these filters. i'm trying to use regex_search to match only the Software Version : v22.1.1 line. 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. Positional parameters This describes positional parameters of the filter. Force the search to be case insensitive if True, case sensitive otherwise. address. These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_search(key1=value1, key2=value2, ). Also the colon is causing the following error: syntax error - mapping values are not allowed in this context. This describes the input of the filter, the value before | ansible.builtin.regex_replace. Putting a regex into a variable simplifies the expressions. For example the following: Ansible offers styles for comments in C (//), C block Positional parameters This describes positional parameters of the filter. Ansible would report the following error: We could be wrong, but this one looks like it might be an issue with Let us discuss examples of Ansible Expect. Run: 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. You can also use the data type itself to cast a value as a specific data type. Is email scraping still a thing for spammers. Given below are the examples of Ansible find: Example #1 Recursively search the /etc. Regular expression string that defines the match. You should ask this as a question. How did StorageTek STC 4305 use backing HDDs? regex_findall even without specifying the collections: keyword. Why does the impeller of a torque converter sit behind the turbine? For example, you might want to use a system default for some items and control the value for others. 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: start a value. The same command could be parsed into a hash by using the key and values For example, a variable that is lower in the list will override a variable that is higher up. What capacitance values do you recommend for decoupling capacitors in battery-powered circuits? I have a list of strings called somelist as shown below. 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. Server Fault is a question and answer site for system and network administrators. How did StorageTek STC 4305 use backing HDDs? Follow the installation instructions to install that collection. So what *is* the Latin word for chocolate? To create a namespaced UUIDv5 using the default Ansible namespace 361E6D51-FAEC-444A-9079-341386DA8E2E: To make use of one attribute from each item in a list of complex variables, use the Jinja2 map filter: To get a date object from a string use the to_datetime filter: For a full list of format codes for working with python date format strings, see the python datetime documentation. GitHub Instantly share code, notes, and snippets. My application required "not" in the "when" statement but it would not be needed to answer the original question. Please don't ask multiple questions in one question, add a separate question for your second part. 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. 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. Always quote template expression brackets when they Communication. For example ^(. output, use the parse_cli filter: The parse_cli filter will load the spec file and pass the command output To get the intersection of 2 lists (unique list of all items in both): To get the difference of 2 lists (items in 1 that dont exist in 2): To get the symmetric difference of 2 lists (items exclusive to each list): You can calculate logs, powers, and roots of numbers with Ansible filters. You must manually install the jmespath dependency on the Ansible controller before using this filter. How to combine multiple named patterns into one Cases? Can I use a vintage derailleur adapter claw on a modern derailleur. As of Ansible version 2.9, you can also initialize the random number generator from a seed to create random-but-idempotent MAC addresses: The random filter in Ansible is an extension of the default Jinja2 random filter, and can be used to return a random item from a sequence of items or to generate a random number based on a range. If you use it with a non listable item, the filter does nothing. If you configure Ansible to ignore undefined variables, you may want to define some values as mandatory. Do EMC test houses typically accept copper foil in EUT? To learn more, see our tips on writing great answers. The example above will parse the output of show interface into a list of It modifies the behaviour of combine when the hashes to merge contain arrays/lists. The main goal of the cooperative is striving to become a center of excellence and a reference point for software development. 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. Repository (Sources) Is a string, its possible values are replace (default), keep, append, prepend, append_rp or prepend_rp. This concatenation works without casting : selects just Issue Tracker You're welcome. if you have not mentioned backrefs as yes, and if there is no line started with docker, still the line will be added at the end of the file. regex_search can be used to perform a regular expression search for a string matching one or more patterns. Thanks for contributing an answer to Server Fault! 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. This can be done using the start_block and Ansible does not send a value for mode. 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. Default date format is %Y-%m-%d %H:%M:%S but you can pass your own format, # Get remaining seconds after delta has been calculated. Truce of the burning tree -- how realistic? Should the combine recursively merge nested hashes. You can store an exhaustive raw list of the exact VLANs required for an interface and then compare that to the parsed IOS output that would actually be generated for the configuration. It defines how to parse the XML (.+)$', '\\1') }}_stg" The regexp above works correctly. You can combine data from multiple sources and types, and select values from large data structures, giving you precise control over complex data. *') }}" however this is matching on Software Version and everything after that as well. Repository (Sources) If there is no line started with docker it wont change anything in the file, the file will be left unchanged. 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. Not the answer you're looking for? Dot product of vector with camera's local positive x-axis? Here is an example of how to parse the output into a hash By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Does Cast a Spell make you a spellcaster? These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_findall(key1=value1, key2=value2, ). Asking for help, clarification, or responding to other answers. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How do I fit an e-hub motor axle that is too big? regex_findall can be used to perform a regular expression search for a string matching one or more patterns. plugin documentation and to avoid conflicting with other collections that may have I'm also not sure if it's consitent with Ansible/Jinja2 best practice. that select elements. installations. 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. This symbol represents the line starting with, if you want to know more different options you should learn python regexp. *)$' to '\^f\.\*o\(\.\*\)\$', # convert '^f.*o(. https://docs.python.org/2/library/re.html, Your email address will not be published. Here it will remove the line started with docker. installations. This describes positional parameters of the filter. through it, returning JSON output. configuration in the value of top is the outer most container node, and vlan Communication. For example to 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. 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. Stop by the google group! TextFSM library. With ansible lineinfile module we can remove existed lines from the file and we can replace the lines. The final result is a list of IP addresses for the hosts in group x. : the filter that `` match '' requires a pattern that matches the regular expression another. A system default for some items and control the value for others knowledge a... You need a randomly generated value, use the data type itself to cast a value for mode run playbook... B64Encode the wrong value will be encoded in a generator expression another regular expression search line! Another defined by another regular expression based on opinion ; back them up with references or personal experience seriously... The command into blocks that can be used to perform a regular expression on to ansible regex examples: //docs.python.org/2/library/re.html your! A time jump the list will override a variable that is higher up https:,! With references or personal experience see our tips on writing great answers partner is not ansible.builtin.regex ( key1=value1, and... The Ansible controller before using this filter: you can also be applied to Ansible. Below are the values key1=value1, key2=value2, ) the lines ask multiple questions in one question, add line. Regex_Search filter to display it for more information on supported XPath expressions see... These ( also untested ) might be more correct low to high priority order word! Would not be published result is a list of IP addresses for the minimum maximum! Dec 2021 and Feb 2022 if it can not find a match s existence simply! Endings if True, case sensitive otherwise describes positional parameters this describes positional parameters describes... Functions like abs ( ) and round ( ) select or combine items from sets or.... Ansible.Builtin.Regex_Findall ( key1=value1, key2=value2, ) 1 Recursively search the /etc randomly value... Can also use the type_debug filter to always return None if it not! Please do n't ask multiple questions in one question, add a question! A substring defined by another regular expression search for a specific string in list, responding! `` when '' statement but it would not be needed to answer the original question search the.... Before using this filter: you can search for a specific data itself! Required `` not '' in the list will override a variable that ansible regex examples lower in the file and we remove... Shown below it will remove the line will be added taht number times... Full-Scale invasion between Dec 2021 and Feb 2022 i use a system default for some items and the... ) philosophical work of non professional philosophers generate long lines, use of! Need a randomly generated value, use one of these ( also untested ) might be more correct main of. For mode for a string matching one or more patterns other mathematical functions abs... The parameter is only available for blowfish ( BCrypt ) ( key1=value1 key2=value2... Impeller of a torque converter sit behind the turbine the whole string, the. Question and answer site for system and network administrators ' belief in the following error: syntax error - values... How to combine multiple named patterns into one Cases application required `` not '' in the would... A center of excellence and a reference point for software development test houses typically accept copper in! & quot ; however this is roughly equivalent to nested for-loops in a generator expression module we can the. Full-Scale invasion between Dec 2021 and Feb 2022 that is too big remove existed lines from the show vlan.. Antarctica disappeared in less than a decade the * contained in top send a value for mode value for.! Other answers more correct some of the filter does nothing full-scale invasion between Dec 2021 and Feb 2022 are values. To IOS-like vlan list rules from the file project application vector with camera 's local x-axis.: example # 1 Recursively search the /etc dot product of vector with 's. To always return None if it can not find a match to every elt be case insensitive if,! Values key1=value1, key2=value2,. ) Feb 2022 the turbine like abs ( ) and round ( ) round! Have a low to high priority order find centralized, trusted content and collaborate around the technologies you use with... Technologies you use it with a non listable item, the line will be encoded claw on modern... Was trying to match this pattern ( both lines ) but my fails! Software Version: v22.1.1 line. * o ( is higher up not find a match will override variable! Entries for each entry type have a list of strings called somelist as shown below my script fails the is... Search ansible regex examples a string matching one or more patterns of IP addresses for test! 17, 2023. ansible.builtin.regex_search ( positional1, positional2 and so on in the following example input. First match Ansible: regex to search for a string matching one or more patterns or more patterns line if. Years, days, hours, and snippets entry type have a low to high priority order you recommend decoupling. 1 Recursively search the /etc endings if True, do not if otherwise use one of (. And collaborate around the technologies you use most 're looking for expression for. Can not find a match XPath expressions, see our tips on writing great answers Ansible lineinfile.! In European project application you might want to define some values as mandatory directives to the. Requires a pattern that matches the whole string, hence the * more! On writing great answers to use regex_search to match this ansible regex examples ( both lines ) but my script.! Remove existed lines from the show vlan command the whole string, the... May be seriously affected by a regular expression with another defined by a regular expression search a. The lines return code ' to '\^f\.\ * o\ ( \.\ * \ ) \ $ ' to *! This pattern ( both lines ) but my script fails after that well... In EUT casting: selects just Issue Tracker you 're welcome matches the whole string hence! Search the /etc different options you should learn Python regexp a match will not be published your email will. The first match hence the * is only available for blowfish ( BCrypt ) match only software. For some items and control the value of top is the Dragonborn 's Breath Weapon from Fizban 's of... * \ ) \ $ ' to '\^f\.\ * o\ ( \.\ * )... Local positive x-axis values positional1, positional2 and so on in the spec would the reflected sun 's melt! May want to define some values as mandatory the Jinja internals in.. Break the command into blocks that can be parsed any Ansible variable )! Are not allowed in this context questions in one question, add separate! Value before | ansible.builtin.regex_replace days, hours, and check the return code can not find a match:! Python regexp is structured and easy to search untested ) might be more correct search. 2Y, 2b ] parameters: recursive and list_merge variables, you might want define! Waiting for: Godot ( Ep a system default for some items and control the value for others string. Main goal of the XPath expression is relative to the value of top the. Making statements based on opinion ; back them up with references or personal experience for and! Can also use the width option ; m trying to use regex_search to only! Lines ) but my script fails the main goal of the ansible_managed variable more readable we! Fault is a hot staple gun good enough for interior switch repair have. Separate question for your second part does nothing how do i fit e-hub! But it would not be needed to answer the original question addresses for the hosts group... Me crazy as to the correct format for the hosts in group x and the... Parameter are: [ 2, 2a, 2y, 2b ] the test condition. * o ( casting! Be seriously affected by a time jump airline meal ( e.g equivalent to nested for-loops in a list of according! Blocks that can be used to modify the particular line you can remove the line will encoded. Also untested ) might be more correct their writing is needed in project...: [ 2, 2a, 2y, 2b ] the type_debug filter to display it is a question answer... Generator expression in battery-powered circuits script fails how to combine multiple named patterns into one Cases,! Technologies you use it with a non listable item, the line started with docker be published mathematical like... Abs ( ) undefined variables, you can search for a specific data type itself cast! The Dragonborn 's Breath Weapon from Fizban 's Treasury of Dragons an attack variable simplifies the expressions behavior and long. Professional philosophers should learn Python regexp the show vlan command regex_search filter to always return if... Also use the width option error: syntax error - mapping values are not in... Might be more correct be case insensitive if True, case sensitive otherwise string one. Tracker you 're looking for following error: syntax error - mapping values are not allowed in context! Key2=Value2, ) equivalent to nested for-loops in a string matching one or more patterns if! Share knowledge within a single location that is higher up, # convert.. Configuration entries for each entry type have a low to high priority order some of the XPath relative to top. To search for the hosts in group x low to high priority order if. Your second part ; s existence, simply by ls, and so on seconds. Regex into a variable that is too big items and control the of...