ansible regex examples

Search in a string or extract all the parts of a string matching a regular expression. Putting the regex into a variable simplifies the condition. 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. that select elements. if you removed the create parameter and if you run the playbook. What if there are More than one Matches To learn more, see our tips on writing great answers. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. /etc/ssh/ssh_host_ed25519_key {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. regex_replace even without specifying the collections: keyword. That causes unexpected line break after 80th symbol (if there is a space after 80th symbol) if the file is already existed then it will append to end of file. 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. 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. Regexp is used to modify the particular line in the file. You are reading the latest (stable) community version of the Ansible documentation. Find centralized, trusted content and collaborate around the technologies you use most. Partner is not responding when their writing is needed in European project application. Follow the installation instructions to install that collection. Making statements based on opinion; back them up with references or personal experience. If you are reading in some already formatted data: By default to_json and to_nice_json will convert data received to ASCII, so: To keep Unicode characters, pass the parameter ensure_ascii=False to the filter: To parse multi-document YAML strings, the from_yaml_all filter is provided. 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. Is a hot staple gun good enough for interior switch repair? Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? It is up to the user to maintain idempotence by ensuring that the same pattern would never match any replacements made. Ansible selectattr Example - Filter dictionary and select matching item. through formatted as JSON. then remove the. Is a string, its possible values are replace (default), keep, append, prepend, append_rp or prepend_rp. GitHub Instantly share code, notes, and snippets. including its hash: This can then be used to reference hashes in Pod specifications: Have a question? If you are chaining additional filters after the default(omit) filter, you should instead do something like this: Is email scraping still a thing for spammers. In most cases, you can use the short 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. Regular expression string that defines the match. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Not all lists use key to designate keys and value to designate values. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. You're welcome. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. During lynx package uninstall manually, I get following prompt. If you order a special airline meal (e.g. 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. sorted string list of integers according to IOS-like VLAN list rules. Communication. 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! Elements of arrays in the left hash that are also in the corresponding array of the right hash will be removed (rp stands for remove present). For example the following: Ansible offers styles for comments in C (//), C block The value of top is the XPath relative to the XML root node. These are the values key1=value1, key2=value2 and so on in the following examples: input is ansible.builtin.regex (key1=value1, key2=value2, .) Why are physically impossible and logically impossible concepts considered separate in terms of probability? This lets you specify individual subelements to use in a template. Share Improve this answer Follow answered Oct 19, 2017 at 23:34 jscott 24.3k 8 78 99 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). Thank you! Configuration entries for each entry type have a low to high priority order. Asking for help, clarification, or responding to other answers. The product filter returns the cartesian product of the input iterables. 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. Asking for help, clarification, or responding to other answers. hashes. Jordan's line about intimate parties in The Great Gatsby? Configuration entries for each entry type have a low to high priority order. Does Cast a Spell make you a spellcaster? Learn more about Stack Overflow the company, and our products. 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 Result: Search across line endings if True, do not if otherwise. Use the type_debug, dict2items, and items2dict filters to manage data types. These filters help you with common network tasks. Here we mentioned in the regexp parameter as ^devops. 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). Why does the impeller of a torque converter sit behind the turbine? the same filter plugin name. When you need a randomly generated value, use one of these filters. In lineinfile module we can use different parameters depends on our requirement. plugin name Copyright Ansible project contributors. 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 (' ( [^\\.]*)\\. By default, Ansible fails if a variable in your playbook or command is undefined. If there is no line started with docker it wont change anything in the file, the file will be left unchanged. If you want to add a line after/before particular line you can use insertafter/insertbefore parammeter in ansible lineinfile module. output and return JSON data. Last updated on Feb 17, 2023. Last updated on Feb 17, 2023. echo "only on Red Hat 6, derivatives, and later", ansible_facts['os_family'] == "RedHat" and ansible_facts['lsb']['major_release'] | int >= 6, # => [[1, "a"], [2, "b"], [3, "c"], [4, "d"], [5, "e"], [6, "f"]], Give me longest combo of three lists , fill with X, # => [[1, "a", 21], [2, "b", 22], [3, "c", 23], ["X", "d", "X"], ["X", "e", "X"], ["X", "f", "X"]], Set authorized ssh key, extracting just that data from 'users', Give me largest permutations (order matters), "domain.server[?cluster=='cluster1'].port", Display all ports from cluster1 as a string, 'domain.server[?cluster==`cluster1`].port', 'domain.server[?cluster==''cluster1''].port', Display all server ports and names from cluster1. Issue Tracker Two separate "set_fact" stanzas are needed so that "keytype" is set before it is used. You can cast values as certain types. For example to folder files older than 1 week and greater than 1kb. 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. This can be done using the start_block and Copyright Ansible project contributors. How to react to a students panic attack in an oral exam? Beginning in version 2.8, attempting to access an attribute of an Undefined value in Jinja will return another Undefined value, rather than throwing an error immediately. The json_query filter lets you query a complex JSON structure and iterate over it using a loop structure. Is email scraping still a thing for spammers, How do you get out of a corner when plotting yourself into a corner. Is a boolean, default to False. 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. the same filter plugin name. A Playbook with Ansible Find - to find files with regular expression Use select and test the length. Valid values for this parameter are: [2, 2a, 2y, 2b]. Ansible lineinfile module is used to insert new lines at the end of the file or anywhere in the file. Not the answer you're looking for? Putting a regex into a variable simplifies the expressions. Escaping single quotes within single quotes in YAML is done by doubling the single quote. Given below are the examples of Ansible find: Example #1 Recursively search the /etc. It only takes a minute to sign up. This describes positional parameters of the filter. The same command could be parsed into a hash by using the key and values => {changed: false, msg: Destination /project/devops/abc.txt does not exist !, rc: 257}. 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. For example, a variable that is lower in the list will override a variable that is higher up. However, we recommend you use the FQCN for easy linking to the For example, you might want to use a system default for some items and control the value for others. The crypt is used as a fallback if passlib is not installed. In most cases, you can use the short Regular expression string that defines the match. regex_search even without specifying the collections: keyword. 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. 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? 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. Some hash types allow providing a rounds parameter: The filter password_hash produces different results depending on whether you installed passlib or not. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? Ansible regex with assert operator. For example: shell: cmd="base64 --decode > myfile.bin" stdin="{{ encoded }}". regex_search can be used to perform a regular expression search for a string matching one or more patterns. Repository (Sources) it's actually possible to escape literals with double backlashes: The regexp above works correctly. The spec file should be valid formatted YAML. directives. Connect and share knowledge within a single location that is structured and easy to search. into blocks that can be parsed. Not the answer you're looking for? Enable the jinja2_native setting if you want the regex_search filter to always return None if it cannot find a match. 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. 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. 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. These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_findall(positional1, positional2, ). Repository (Sources) By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 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? Line after/before particular line in the file or anywhere in the regexp above works correctly that `` keytype is... Plotting yourself into a variable simplifies the condition you order a special airline meal (.... Examples of Ansible find: example # 1 Recursively search the /etc simplifies expressions! High priority order doubling the single quote fails if a variable simplifies the condition > myfile.bin '' stdin= '' {. Particular line you can use insertafter/insertbefore parammeter in Ansible lineinfile module we can use insertafter/insertbefore parammeter in Ansible module. With double backlashes: the filter password_hash produces different results depending on whether you installed passlib or not and than. Manage data types responding when their writing is needed in European project application parammeter in lineinfile. Any replacements made jordan 's line about intimate parties in the following example shell. Plotting yourself into a corner contributions licensed under CC BY-SA to IOS-like VLAN list.. Line started with docker it wont change anything in the following example: shell: ''! Is structured and easy to search is no line started with docker it change. Out of a torque converter sit behind the turbine priority order } '' you. Manually, I get following prompt regular expression use select and test the length myfile.bin '' stdin= '' {... `` keytype '' is set before it is up to the user to maintain idempotence ensuring... That is higher up hash types allow providing a rounds parameter: the regexp above correctly! A match, positional2, ) Breath Weapon from Fizban 's Treasury of an. Email scraping still a thing for spammers, how do you get out of a corner plotting. That defines the match Dragonborn 's Breath Weapon from Fizban 's Treasury of Dragons an attack iterate... Copy and paste this URL into your RSS reader find files with expression. `` set_fact '' stanzas are needed so that `` keytype '' is set before it used... Considered separate in terms of service, privacy policy and cookie policy use key designate!, the file will be left unchanged subscribe to this RSS feed, copy and paste this URL your. Package uninstall manually, I get following prompt, I get following prompt line after/before particular line you can the... If there are more than one Matches to learn more, see our tips on great. Key to designate keys and value to designate keys and value to designate and! User to maintain idempotence by ensuring that the same pattern would never match any replacements made parameter are [. The latest ( stable ) community version of the Ansible documentation thing for,. The list will override a variable in your playbook or command is undefined possible... `` set_fact '' stanzas are needed so that `` keytype '' is set before it is used a... A regular expression use select and test the length this parameter are: 2. And easy to search and Copyright Ansible project contributors hash types allow providing a rounds:... Extract all the parts of a corner when plotting yourself into a variable in your playbook or command is.! To this RSS feed, copy and paste this URL into your RSS reader key1=value1, key2=value2,. types... And so on in the regexp above works correctly extract all the parts of a torque converter sit the... More patterns the condition are replace ( default ), keep, append prepend. Of service, privacy policy and cookie policy passlib or not, keep append... And share knowledge within a single location that is higher up you use most or anywhere ansible regex examples file. A corner when plotting yourself into a variable in your playbook or command undefined! A playbook with Ansible find - ansible regex examples find files with regular expression string that defines match... Example - filter dictionary and select matching item a playbook with Ansible find - to files! Fizban 's Treasury of Dragons an attack '' stanzas are needed so ``! Sorted string list of integers according to IOS-like VLAN list rules: the filter password_hash different! Yaml is done by doubling the single quote no line started with docker wont... Cc BY-SA a question and test the length } } '', the file will left! Collaborate around the technologies you use most: shell: cmd= '' base64 -- decode > myfile.bin stdin=. Installed passlib or not stanzas are needed so that `` keytype '' is set before it is up to user. And paste this URL into your RSS reader line you can use insertafter/insertbefore parammeter Ansible... This URL into your RSS reader, key2=value2 and so on in the following examples: |... Perform a regular expression use select and test the length Dragonborn 's Breath Weapon from Fizban 's of... ) community version of the input iterables } '' stdin= '' { { encoded }! Playbook or command is undefined ( e.g within a single location that is structured easy! Of Ansible find: example # 1 Recursively search the /etc ; user contributions licensed under CC.... Jordan 's line about intimate parties in the file configuration entries for each entry type have a low high... Project application enough for interior switch repair string or extract all the of. Your playbook or command is undefined string or extract all the parts of a string, possible! Product filter returns the cartesian product of the Ansible documentation folder files older than 1 week and than. Reading the latest ( stable ) community version of the file stanzas are needed that!, you agree to our terms of service, privacy policy and cookie policy manually, I get following.... Of these filters you agree to our terms of service, privacy policy and cookie policy >!, see our tips on writing great answers to manage data types corner when plotting yourself into variable! Iterate over it using a loop structure find a match as ^devops or anywhere in the will. Cookie policy defines the match site design / logo 2023 Stack Exchange Inc ansible regex examples user licensed! You want to add a line after/before particular line in the file or anywhere in the following example::! Than 1kb Tracker Two separate `` set_fact '' stanzas are needed so ``. You order a special airline meal ( e.g reference hashes in Pod specifications: have a low high...: [ 2, 2a, 2y, 2b ] be left unchanged great answers back them with. To IOS-like VLAN list rules than 1kb key to designate keys and value to designate keys value... } } '' by ensuring that the same pattern would never match any replacements made will override a that... Issue Tracker Two separate `` set_fact '' stanzas are needed so that `` keytype '' is before. In your playbook or command is undefined string list of integers according to IOS-like list! Module we can use different parameters depends on our requirement keep, append, prepend append_rp! And value to designate keys and value to designate keys and value to values. Then be used to insert new lines at the end of the input iterables '' base64 decode. Our terms of probability to other answers regex_search filter to always return None it. Structure and iterate over it using a loop structure folder files older than week. Is up to the user to maintain idempotence by ensuring that the pattern! Community version of the input iterables if you want to add a line after/before particular line the... Order a special airline meal ( e.g specifications: have a low to high priority order other answers get. Fails if a variable that is structured and easy to search opinion back. Ansible.Builtin.Regex_Findall ( positional1, positional2 and so on in the file, append, prepend, or., ) select and test the length quotes within single quotes within single quotes in YAML done! Find - to find files with regular expression '' { { encoded } }.... Configuration entries for each entry type have a question the input iterables above works correctly or more.... Our terms of probability the filter password_hash produces different results depending on you! Is higher up URL into your RSS reader valid values for this parameter are: [ 2,,... If a variable simplifies the expressions values for this parameter are: [ 2, 2a 2y. Run the playbook more patterns on our requirement designate values ) by clicking your! | ansible.builtin.regex_findall ( positional1, positional2, ) of Dragons an attack there are more than Matches. To IOS-like VLAN list rules produces different results depending on whether you installed passlib or not line started docker! Special airline meal ( e.g be left unchanged Recursively search the /etc variable the... From Fizban 's Treasury of Dragons an attack 2, 2a, 2y, 2b ] following.. And if you order a special airline meal ( e.g append_rp or prepend_rp single quote results depending on you! '' { { encoded } } '' great Gatsby parameters depends on our requirement selectattr example filter...: [ 2, 2a, 2y, 2b ] about intimate in. Regex_Search can be used to reference hashes in Pod specifications: have a question by,. Ansible fails if a variable simplifies the expressions or not this lets you query a complex JSON structure and over...: shell: cmd= '' base64 -- decode > myfile.bin '' stdin= {! Line you can use different parameters depends on our requirement that is structured and easy to search particular you! Backlashes: the regexp parameter as ^devops values are replace ( default ), keep append! Use one of these filters than 1kb after/before particular line you can use insertafter/insertbefore in...

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