To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Do EMC test houses typically accept copper foil in EUT? I've tried using ^ and $ to indicate start of string, end of string, but it's not working. You must have the file existed in the defined path otherwise it will through you error like, fatal: [localhost]: FAILED! Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_replace(key1=value1, key2=value2, ). Configuration entries for each entry type have a low to high priority order. we should mention backrefs as yes. Ansible: regex to search for a specific string in list, The open-source game engine youve been waiting for: Godot (Ep. installations. Server Fault is a question and answer site for system and network administrators. Note: It does not depend on the value of the hash_behaviour setting in ansible.cfg. The final result is a list of IP addresses for the hosts in group x. regex_findall even without specifying the collections: keyword. was trying to match this pattern (both lines) but my script fails. # 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(. Copyright Ansible project contributors. Search across line endings if True, do not if otherwise. How can I match literals in Ansible regexp_replace filter? These filters help you with common network tasks. Putting a regex into a variable simplifies the expressions. if you removed the create parameter and if you run the playbook. Positional parameters This describes positional parameters of the filter. "domain.server[?cluster=='cluster2']. The spec file above will return a JSON data structure that is a list of hashes Truce of the burning tree -- how realistic? For example, a variable that is lower in the list will override a variable that is higher up. In the following examples i will show you how to use ansible lineinfile module with different parameters like regexpto insert new lines. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. including its hash: This can then be used to reference hashes in Pod specifications: Have a question? Ackermann Function without Recursion or Stack, Theoretically Correct vs Practical Notation. Repository (Sources) 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? Using omit in this manner is very specific to the later filters you are chaining though, so be prepared for some trial and error if you do this. Force the search to be case insensitive if True, case sensitive otherwise. Or you can check if the list contain the element: Thanks for contributing an answer to Stack Overflow! Please don't ask multiple questions in one question, add a separate question for your second part. 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. Asking for help, clarification, or responding to other answers. Has China expressed the desire to claim Outer Manchuria recently? Check out my REGEX COOKBOOK article about the most commonly used (and most wanted) regex , Regular expressions (regex or regexp) are extremely useful in extracting information from any text by searching for one or more matches of a specific search pattern (i.e. 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 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. Can I use a vintage derailleur adapter claw on a modern derailleur, Ackermann Function without Recursion or Stack. This describes positional parameters of the filter. How can I set an Ansible variable depending on hostname? 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]. *)$' 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. If you order a special airline meal (e.g. 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. address. 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. The replace module is used to replace data in a file. rev2023.3.1.43269. To learn more, see our tips on writing great answers. Last updated on Feb 17, 2023. ansible.builtin.regex_search(positional1. 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. *) 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 (\\). The first line of the list can be first_line_len characters long. in ipaddr filter. Another common use case for parsing CLI commands is to break a large command If you are unsure of the underlying Python type of a variable, you can use the type_debug filter to display it. This describes the input of the filter, the value before | ansible.builtin.regex_findall. 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. hashes. This filter plugin is part of ansible-core and included in all Ansible Backrefs yes will replace the line with hello devops only if it is find regexp line(^docker) in file. Let us discuss examples of Ansible Expect. vegan) just to try it, does this inconvenience the caterers and staff? If you are chaining additional filters after the default(omit) filter, you should instead do something like this: What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? output, use the parse_cli filter: The parse_cli filter will load the spec file and pass the command output plugin name rev2023.3.1.43269. Attributes of XML tags can be extracted using XPath expressions. You can configure Ansible to allow undefined variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false. 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. 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. rev2023.3.1.43269. With ansible lineinfile module we can remove existed lines from the file and we can replace the lines. Passing test.staging.domain.com through it would produce just test. Making statements based on opinion; back them up with references or personal experience. How do I fit an e-hub motor axle that is too big? i'm trying to use regex_search to match only the Software Version : v22.1.1 line. Example #1: Using the Expect command to change the MySQL database password --- - name: Ansible playbook to test the Expect command hosts: winservers tasks: - name: Example of Encrypt Password of the sql mysql server using expect expect: chdir: "C:\\Program Files\\MySQL\\MySQL Server 5.7\\bin" This filter: You can fully customize the comment style: The filter can also be applied to any Ansible variable. change the definition in the ansible.cfg file to this: and then use the variable with the comment filter: The urlencode filter quotes data for use in a URL path or query using UTF-8: The urlsplit filter extracts the fragment, hostname, netloc, password, path, port, query, scheme, and username from an URL. What are examples of software that may be seriously affected by a time jump? Share Improve this answer Follow answered Oct 19, 2017 at 23:34 jscott 24.3k 8 78 99 output and return JSON data. 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. 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. value using the same show vlan | display xml command. To escape special characters within a standard Python regex, use the regex_escape filter (using the default re_type='python' option): To escape special characters within a POSIX basic regex, use the regex_escape filter with the re_type='posix_basic' option: To get the last name of a file path, like foo.txt out of /etc/asdf/foo.txt: To get the last name of a windows style file path (new in version 2.0): To separate the windows drive letter from the rest of a file path (new in version 2.0): To get the rest of the path without the drive letter: To get the directory from a windows path (new version 2.0): To expand a path containing a tilde (~) character (new in version 1.5): To expand a path containing environment variables: expandvars expands local variables; using it on remote paths can lead to errors. installations. I'm also not sure if it's consitent with Ansible/Jinja2 best practice. 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. Follow the installation instructions to install that collection. This filter can be used to generate a random MAC address from a string prefix. Here is the example playbook with the regular expression pattern . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. vegan) just to try it, does this inconvenience the caterers and staff? Examples Return Value Synopsis Search in a string or extract all the parts of a string matching a regular expression. It's not necessary to escape it. The best answers are voted up and rise to the top, Not the answer you're looking for? Collections in the Ansible Namespace Ansible.Builtin ansible.builtin.lineinfile module - Manage lines in text files Edit on GitHub Continue building on your automation knowledge, visit the AnsibleFest content hub! To select a single element or a data subset from a complex data structure in JSON format (for example, Ansible facts), use the json_query filter. You can also use the Ansible vault filter to encrypt data: And then decrypt it using the unvault filter: Several filters work with text, including URLs, file names, and path names. 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? 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. 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. Examples Return Value Synopsis Search in a string to extract the part that matches the regular expression. Asking for help, clarification, or responding to other answers. By default, Ansible fails if a variable in your playbook or command is undefined. Use the k8s_config_resource_name filter to obtain the name of a Kubernetes ConfigMap or Secret, Has 90% of ice around Antarctica disappeared in less than a decade? 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. This filter plugin is part of ansible-core and included in all Ansible Vladimir to the rescue as always. *') }}" however this is matching on Software Version and everything after that as well. In this example, the default None (Python null) value will cause the later filters to fail, which will trigger the or omit portion of the logic. The best answers are voted up and rise to the top, Not the answer you're looking for? I have a list of strings called somelist as shown below. 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 Why are physically impossible and logically impossible concepts considered separate in terms of probability? 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. . During lynx package uninstall manually, I get following prompt. output and return JSON data. 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. You're welcome. Configuration entries for each entry type have a low to high priority order. This is driving me crazy as to the correct format for the test condition. Not the answer you're looking for? Configuration entries for each entry type have a low to high priority order. Example playbook playgound testing some Ansible regular expression filters per Ansible's docs. To get the real path of a link (new in version 1.8): To get the relative path of a link, from a start point (new in version 1.7): To get the root and extension of a path or file name (new in version 2.0): The splitext filter always returns a pair of strings. Compare string against regular expression using Pythons match or search functions. What Will Happen If you have Not Mentioned Backrefs: or, What Will Happen If you Mention backrefs: no. For example, map from_yaml, create a list of dictionaries, and selectattr. Regular expression string that defines the match. Ansible Map Filter does two things Search across line endings if True, do not if otherwise. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, Ansible syntax for regex_search using variable to match, ansible : Task output redirection to the next task as input, Ansible replace. 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. The spec file should be valid formatted YAML. it will create new file and it will add the line to file. configuration in the value of top is the outer most container node, and vlan Communication. 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. https://docs.python.org/2/library/re.html, Your email address will not be published. Ansible playbook - does include_role and delegate_to work together. 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: "". This concatenation works without casting : selects just It only takes a minute to sign up. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Communication. Without that filter before b64encode the wrong value will be encoded. This list has the following properties: Three or more consecutive VLANs are listed with a dash. 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. Is email scraping still a thing for spammers. 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 a boolean, default to False. Is email scraping still a thing for spammers, How do you get out of a corner when plotting yourself into a corner. The YAML spec file defines how to parse the CLI output. 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. Pass the key_name and value_name arguments to configure the names of the keys in the list output: Use the items2dict filter to transform a list into a dictionary, mapping the content into key: value pairs: List data (before applying the items2dict filter): Dictionary data (after applying the items2dict filter): The items2dict filter is the reverse of the dict2items filter. that means the line started with docker has to modify with the line hello devops in the file. Duress at instant speed in response to Counterspell. Ansible Lineinfile With Regexp Example: --- - hosts: localhost gather_facts: no tasks: - name: Ansible check directory. The json_query filter lets you query a complex JSON structure and iterate over it using a loop structure. Extracting part of the string using Ansible regex_search and save the output as a variable, The open-source game engine youve been waiting for: Godot (Ep. 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. Repository (Sources) In this example, Hello is replaced with Goodbye. These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_findall(key1=value1, key2=value2, ). For example, a variable that is lower in the list will override a variable that is higher up. 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. Delta is 2 hours, 12 seconds, # get amount of days between two dates. plugin documentation and to avoid conflicting with other collections that may have Putting the regex into a variable simplifies the condition. plugin documentation and to avoid conflicting with other collections that may have Ansible selectattr filter is to select matching objects from the dictionary by applying a test across all the objects in a dictionary/sequence. Issue Tracker Here is an example of how to parse the output into a hash Q1.) So what *is* the Latin word for chocolate? 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. The first capturing group extracts the first part of the URL until the first dot, the whole regex captures the whole URL. Input This describes the input of the filter, the value before | ansible.builtin.regex_search. 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 . Search in a string or extract all the parts of a string matching a regular expression. In the example XML output given below, the value of top is configuration/vlans/vlan, Enable the jinja2_native setting if you want the regex_search filter to always return None if it cannot find a match. Below is an example of a valid spec file that Find a vector in the null space of a large dense matrix, where elements in the matrix are not directly accessible. It defines how to parse the CLI Here it will add the hello devops line after the line started with docker. plugin name By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Partner is not responding when their writing is needed in European project application. How does a fan in a turbofan engine suck air in? Story Identification: Nanomachines Building Cities. These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_findall(positional1, positional2, ). which is an XPath expression relative to the root node (
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