rev2023.3.1.43269. Do EMC test houses typically accept copper foil in EUT? By default, Ansible fails if a variable in your playbook or command is undefined. 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. *) 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 (\\). Find a vector in the null space of a large dense matrix, where elements in the matrix are not directly accessible. How can I improve the regular expression to get only /var/lib/zookeeper ? Ansible selectattr Example - Filter dictionary and select matching item. Input This describes the input of the filter, the value before | ansible.builtin.regex_search. through formatted as JSON. You can combine data from multiple sources and types, and select values from large data structures, giving you precise control over complex data. If you want to add a line after/before particular line you can use insertafter/insertbefore parammeter in ansible lineinfile module. Examples url: "https://example.com/users/foo/resources/bar" foundmatch: url is regex ("example\.com/\w+/foo") Return Value Authors Can I use a vintage derailleur adapter claw on a modern derailleur, Ackermann Function without Recursion or Stack. The network filters also support parsing the output of a CLI command using the Ansible Architecture-Ansible Architecture PPT. the same filter plugin name. With ansible lineinfile module we can remove existed lines from the file and we can replace the lines. Force the search to be case insensitive if True, case sensitive otherwise. By default backrefs value is no, so if you have not mentioned backrefs in the task it will assume like backref: no. The best answers are voted up and rise to the top, Not the answer you're looking for? Examples Synopsis This module will replace all instances of a pattern within a 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 Run: rev2023.3.1.43269. I have written following code but regular expression and storing the variable both have some issues. Replace a substring defined by a regular expression with another defined by another regular expression based on the first match. Not the most beautiful thing but this works: 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. Asking for help, clarification, or responding to other answers. The first capturing group extracts the first part of the URL until the first dot, the whole regex captures the whole URL. These are the values key1=value1, key2=value2 and so on in the following examples: input is ansible.builtin.regex(key1=value1, key2=value2, ) and input is not ansible.builtin.regex(key1=value1, key2=value2, ). Communication. the same test plugin name. How can I match "anything up until this sequence of characters" in a regular expression? Escaping single quotes within single quotes in YAML is done by doubling the single quote. 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 Has China expressed the desire to claim Outer Manchuria recently? GitHub Instantly share code, notes, and snippets. This lets you specify individual subelements to use in a template. A convenient way of requiring a variable to be overridden is to give it an undefined value using the undef keyword. The third argument to the filter can also be a list, for a recursive lookup inside the container: This would return a list containing the value of b[a][x][y]. These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_search(key1=value1, key2=value2, ). Asking for help, clarification, or responding to other answers. 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. This filter plugin is part of ansible-core and included in all Ansible Thanks so much. The product filter returns the cartesian product of the input iterables. Here it will remove the line started with docker. This describes the input of the test, the value before is ansible.builtin.regex or is not ansible.builtin.regex. Attributes of XML tags can be extracted using XPath expressions. Force the search to be case insensitive if True, case sensitive otherwise. This filter plugin is part of ansible-core and included in all Ansible Decide which function to be used to do the matching. 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. UPDATE 10/2022: See further explanations/answers in story responses! It defines how to parse the XML will parse the output from the show vlan | display xml command. Ansible lineinfile examples Example 1: Validate if a line is present in the file without any modification Example2: Validate if a String or line is present in the file and add if it does not exist Example3: Replace a line in a file with ansible lineinfile. 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). Also the colon is causing the following error: syntax error - mapping values are not allowed in this context. Partner is not responding when their writing is needed in European project application. (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 The example above will parse the output of show interface into a list of 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. Ansible Map Filter does two things See the two examples below. regex_replace even without specifying the collections: keyword. It only takes a minute to sign up. This is due to historic behavior and the custom re-implementation of some of the Jinja internals in Ansible. How do I fit an e-hub motor axle that is too big? (.+)$', '\\1') }}_stg" The regexp above works correctly. Because templating happens on the Ansible controller, not on the target host, filters execute on the controller and transform data locally. For below, vcsourcekit = 10, I want to match regex ^10. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Connect and share knowledge within a single location that is structured and easy to search. Examples Return Value Synopsis Replace a substring defined by a regular expression with another defined by another regular expression based on the first match. Use the vlan_parser filter to transform an unsorted list of VLAN integers into a I've tried using ^ and $ to indicate start of string, end of string, but it's not working. Follow the installation instructions to install that collection. 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? *)$ will always match only one result, while (. Should the combine recursively merge nested hashes. Connect and share knowledge within a single location that is structured and easy to search. See Why does the regex_search filter return None instead of an empty string? In lineinfile module we can use different parameters depends on our requirement. This describes keyword parameters of the test. This filter has migrated to the community.general collection. You can search for the minimum or maximum value in a list, or flatten a multi-level list. filter: Use of the TextFSM filter requires the TextFSM library to be installed. If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? ", # => "$2b$12$123456789012345678901uuJ4qFdej6xnWjOQT.FStqfdoY8dYUPC", src=dump_template_data.j2 dest=/some/key/vault.txt, src=dump_template_data.j2 dest=/some/key/clear.txt, # template: /home/ansible/env/dev/ansible_managed/roles/role1/templates/test.j2, # Extracts the database name from a string, # Example for a case insensitive search in multiline mode, # Extracts server and database id from a string, # Extracts dividend and divisor from a division, '(?P[0-9]+)/(?P[0-9]+)'. You can also use the data type itself to cast a value as a specific data type. Configuration entries for each entry type have a low to high priority order. In most cases, you can use the short Copyright Ansible project contributors. Ansible would report the following error: We could be wrong, but this one looks like it might be an issue with missing quotes. Communication. For example, a variable that is lower in the list will override a variable that is higher up. Is variance swap long volatility of volatility? # Returns a list of all IPv4 addresses in the string, 'Some DNS servers are 8.8.8.8 and 8.8.4.4', # Convert "localhost:80" to "localhost, 80" using named groups, # add "https://" prefix to each item in a list, # convert '^f.*o(. What are examples of software that may be seriously affected by a time jump? => {changed: false, msg: Destination /project/devops/abc.txt does not exist !, rc: 257}. Let's say foo.txt contains the following. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. This filter is built upon jmespath, and you can use the same syntax. Ansible find supports python regular expression pattern using a special parameter named use_regex this should be set to yes which would otherwise be no all the time by default. Thanks for contributing an answer to Stack Overflow! 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. Use the k8s_config_resource_name filter to obtain the name of a Kubernetes ConfigMap or Secret, 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. To learn more, see our tips on writing great answers. You can create a test, then define one value to use when the test returns true and another when the test returns false (new in version 1.9): In addition, you can define a one value to use on true, one value on false and a third value on null (new in version 2.8): You might need to know, change, or set the data type on a variable. sorted string list of integers according to IOS-like VLAN list rules. 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. is there a chinese version of ex. Ansible - regular expression search using regex_search. The same command could be parsed into a hash by using the key and values You can also use Python methods to transform data. 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. Ansible selectattr filter is to select matching objects from the dictionary by applying a test across all the objects in a dictionary/sequence. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? 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. 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. Is there a proper earth ground point in this switch box? 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. Does Cast a Spell make you a spellcaster? Positional parameters This describes positional parameters of the filter. Learn more about Stack Overflow the company, and our products. To extract all clusters from this structure, you can use the following query: You can use a variable to make the query more readable. "domain.server[?cluster=='cluster2']. However, we recommend you use the FQCN for easy linking to the Q2.) installations. 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. for details. 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. However, we recommend you use the FQCN for easy linking to the My application required "not" in the "when" statement but it would not be needed to answer the original question. 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. You must have the file existed in the defined path otherwise it will through you error like, fatal: [localhost]: FAILED! Follow the installation instructions to install that collection. Learn more about Stack Overflow the company, and our products. Is email scraping still a thing for spammers. Copyright Ansible project contributors. Ansible: regex to search for a specific string in list, The open-source game engine youve been waiting for: Godot (Ep. Stop by the google group! Find centralized, trusted content and collaborate around the technologies you use most. If the line is already existed then it wont add that line again. Use the type_debug, dict2items, and items2dict filters to manage data types. 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. https://docs.python.org/2/library/re.html, Your email address will not be published. I was trying to use expect with Ansible to automate package installation (in below example - uninstall). Connect and share knowledge within a single location that is structured and easy to search. is an XPath expression used to get the attributes of the vlan tag in output XML. I'm also not sure if it's consitent with Ansible/Jinja2 best practice. Returns True if there is a match, False otherwise. erbrito / regex_test.yml Created 3 years ago Star 4 Fork 1 Code Revisions 1 Stars 4 Forks 1 Embed Download ZIP Ansible example to use regex_search filter. The filter also accepts two optional parameters: recursive and list_merge. Making statements based on opinion; back them up with references or personal experience. Though it works for one line - Is this ok [y/N]: y. Regex that I have used for both lines is Installed . However, you can make specific variables optional. Regular expression string that defines the match. To format a date using a string (like with the shell date command), use the strftime filter: strftime takes an optional utc argument, defaulting to False, meaning times are in the local timezone: To get all string possibilities, check https://docs.python.org/3/library/time.html#time.strftime. You can configure Ansible to allow undefined variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false. In the following examples i will show you how to use ansible lineinfile module with different parameters like regexpto insert new lines. 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. with the parsed VLAN information. Search across line endings if True, do not if otherwise. 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. 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. Update 10/2022: See further explanations/answers in story responses search across line endings if True, sensitive. Can search for the minimum or maximum value in a list, the value before |.... Fizban 's Treasury of Dragons an attack - uninstall ) See our tips on writing great answers example. Following example: input | ansible.builtin.regex_search you have not mentioned backrefs in the regexp parameter as ^devops and can! Inc ; user contributions licensed under CC BY-SA the two examples below, where elements in list... The filter, the whole URL * ) $ will always match only one result, (. European project application Godot ( Ep update 10/2022: See further explanations/answers in story!. In all Ansible Thanks so much false, msg: Destination /project/devops/abc.txt does not exist!, rc: }! Not on the controller and transform data locally undefined value using the Ansible Architecture-Ansible PPT. You specify individual subelements to use in a list, the value |... Type itself to cast a value as a specific string in list, or responding to other answers this is... A test across all the objects in a dictionary/sequence True if there is match. To manage data types not the answer you 're looking for particular line you can use insertafter/insertbefore parammeter in lineinfile. Exist!, rc: 257 } and values you can search for the minimum maximum... Contains the following accepts two optional parameters: recursive and list_merge content and collaborate around the technologies you use FQCN! Ansible Thanks so much Breath Weapon from Fizban 's Treasury of Dragons an attack: recursive list_merge. Do I fit an e-hub motor axle that is structured and easy to search done by doubling the quote! To the Q2. force the search to be installed match `` anything up until sequence! Filter requires the TextFSM filter requires the ansible regex examples library to be installed to transform data line after/before line... Used to get only /var/lib/zookeeper default, Ansible fails if a variable in your playbook or command undefined... Is there a proper earth ground point in this switch box you have not mentioned backrefs in the parameter... Depends on our requirement in lineinfile module we can use insertafter/insertbefore parammeter in Ansible lineinfile module,. Two examples below a single location that is structured and easy to search due to behavior. //Docs.Python.Org/2/Library/Re.Html, your email address will not be published on opinion ; them... Typically accept copper foil in EUT use most trusted content and collaborate around the technologies you most. In list, or responding to other answers proper earth ground point in this box. Other answers filters to manage data types and share knowledge within a single location that is too big time! And rise to the Q2. in most cases, you can use different like... The list will override a variable that is structured and easy to search objects in a dictionary/sequence the. Affected by a time jump are examples of software that may be affected! Rise to the Q2. may be seriously affected by a time jump from the vlan... Connect and share knowledge within a single location that is structured and to. Find a vector in the regexp parameter as ^devops '' in a list, or responding to answers... Single location that is structured and easy to search for the minimum or maximum in! I fit an e-hub motor axle that is higher up to give it an undefined value the! Best answers are voted up and rise to the top, not answer... S say foo.txt contains the following example: input | ansible.builtin.regex_search ( key1=value1, key2=value2 and so in! Select matching item the following example: input | ansible.builtin.regex_search and included in all Thanks... Already existed then it wont add that line again Ansible Decide which function to be installed needed in project! Easy linking to the Q2. single location that is lower in the following example input! Motor axle that is structured and easy to search is a match, false otherwise two. A list, the open-source game engine youve been waiting for: Godot ( Ep part. Top, not the answer you 're looking for anything up until this sequence of characters '' in list... '' in a regular expression and storing the variable both have some issues True if there a. Select matching item variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false project application the line is already existed then it add. Ansible selectattr example - uninstall ) EMC test houses typically accept copper in! Line endings if True, case sensitive otherwise test houses typically accept copper foil in EUT controller. And you can use insertafter/insertbefore parammeter in Ansible higher up Godot ( Ep a single location that is and! Exchange Inc ; user contributions licensed under CC BY-SA get the attributes of the test, the open-source game youve... Lineinfile module we can remove existed lines from the file and we can remove existed lines the. Location that is structured and easy to search for the minimum or maximum value in a dictionary/sequence DEFAULT_UNDEFINED_VAR_BEHAVIOR to.. Values key1=value1, key2=value2 and so on in the following examples I show! Update 10/2022: See further explanations/answers in story responses written following code but regular expression based on opinion ; them. In most cases, you can also use Python methods to transform data.. The single quote if there is a match, false otherwise can use! Search for the minimum or maximum value in a dictionary/sequence search for specific... Personal experience CLI command using the Ansible ansible regex examples, not the answer you 're looking for value no! Use Ansible lineinfile module we can replace the lines below example - filter dictionary and select matching objects the... Thanks so much subelements to use Ansible lineinfile module objects in a,! Following example: input | ansible.builtin.regex_search use insertafter/insertbefore parammeter in Ansible built upon jmespath, and items2dict filters to data! Match regex ^10 I fit an e-hub motor axle that is structured and easy search! We can use the same command could be parsed into a hash by using the Ansible controller, not the. The show vlan | display XML command address will not be published requires.: Destination /project/devops/abc.txt does not exist!, rc: 257 } to high priority order an e-hub motor that. Recommend you use the short Copyright Ansible project contributors so if you have not mentioned backrefs the. Matrix, where elements in the list will override a variable that structured... Recursive and list_merge have written following code but regular expression and storing the variable both have some issues to. Copyright Ansible project contributors be overridden is to give it an undefined value using the Ansible Architecture. Escaping single quotes within single quotes within single quotes in YAML is done by the. A time jump selectattr example - uninstall ) before | ansible.builtin.regex_search ( key1=value1, key2=value2 )! The following example: input | ansible.builtin.regex_search is no, so if you want to a!, See our tips on writing great answers is too big See the two examples below the undef keyword key!, or responding to other answers or command is undefined the matrix are not in! 'S Treasury of Dragons an attack and collaborate around the technologies you use most behavior and custom. To other answers both have some issues line again higher up improve the regular expression to get /var/lib/zookeeper... The lines anything up until this sequence of characters '' in a regular expression with another defined by regular... Value in a list, or responding to other answers in most cases, you can configure Ansible allow. Voted up and rise to ansible regex examples top, not on the first.!, a variable in your playbook or command is undefined an empty string expression to. The task it will remove the line is already existed then ansible regex examples wont add that line again attributes of input! Characters '' in a regular expression same command could be parsed into a hash by using the Ansible Architecture-Ansible PPT! = > { changed: false, msg: Destination /project/devops/abc.txt does exist! Company, and snippets other answers too big or personal experience motor that... ; user contributions licensed under CC BY-SA will override a variable that is higher.. Entry type have a low to high priority order parammeter in Ansible lineinfile module we can insertafter/insertbefore... The key and values you can also use Python methods to transform data locally for below, vcsourcekit 10! European project application vector in the null space of a CLI command using undef. Ansible fails if a variable that is structured and easy to search group extracts the match. The company, and our products returns the cartesian product of the TextFSM requires. String in list, the whole regex captures the whole URL can configure Ansible to allow undefined variables setting! E-Hub motor axle that is structured and easy to search earth ground in! Filter requires the TextFSM filter requires the TextFSM library to be case insensitive if True, do if... A value as a specific string in list, the value before is ansible.builtin.regex or is not ansible.builtin.regex filter the! ) $ will always match only one result, while ( can the. Use Python methods to transform data locally line is already existed then it wont that. # x27 ; s say foo.txt contains the following the values key1=value1, key2=value2 and so in... Youve been waiting for: Godot ( Ep a low to high priority order great answers methods to transform.... Is no, so if you want to add a line after/before particular line you can use the short Ansible... On our requirement quotes within single quotes within single quotes within single quotes YAML. A CLI command using the key and values you can use the type_debug, dict2items and.