ansible regex examples

Jordan's line about intimate parties in The Great Gatsby? 0. 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. If you want to add the line before starting of the line, started with docker, you can put insertbefore. vegan) just to try it, does this inconvenience the caterers and staff? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. String with substitution (or original if no match). The debug looks like: regex even without specifying the collections: keyword. 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. Find centralized, trusted content and collaborate around the technologies you use most. 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. To get the minimum value from list of numbers: To get the minimum value in a list of objects: To get the maximum value from a list of numbers: To get the maximum value in a list of objects: Flatten a list (same thing the flatten lookup does): Flatten only the first level of a list (akin to the items lookup): Preserve nulls in a list, by default flatten removes them. Examples Return Value Synopsis Search in a string to extract the part that matches the regular expression. regex_search can be used to perform a regular expression search for a string matching one or more patterns. Repository (Sources) regex_replace even without specifying the collections: keyword. which is an XPath expression relative to the root node (). Search in a string to extract the part that matches the regular expression. For example, the vlan_id in the spec file is a user defined name and its value vlan-id is the --- - name: Upgrade NX-OS on switch with pre-checks to load image as required . Making statements based on opinion; back them up with references or personal experience. For below, vcsourcekit = 10, I want to match regex ^10. 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? This describes keyword parameters of the filter. 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. What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? value using the same show vlan | display xml command. How to react to a students panic attack in an oral exam? 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. EDIT: One of these ( also untested ) might be more correct. The spec file should be valid formatted YAML. How to combine multiple named patterns into one Cases? How can I improve the regular expression to get only /var/lib/zookeeper ? 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. Personally I'd use something along the lines of. Ansible selectattr Example - Filter dictionary and select matching item. How do I specify a regex to search for the string name: bob - note that this should not match with name: bobby. I wanted to read the value for dataDir using Ansible and set it to a variable. Ansible selectattr filter is to select matching objects from the dictionary by applying a test across all the objects in a dictionary/sequence. These are the values key1=value1, key2=value2 and so on in the following examples: input is ansible.builtin.regex (key1=value1, key2=value2, .) Ansible syntax for regex_search using variable to match, The open-source game engine youve been waiting for: Godot (Ep. Examples url: "https://example.com/users/foo/resources/bar" foundmatch: url is regex ("example\.com/\w+/foo") Return Value Authors 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. Communication. The crypt is used as a fallback if passlib is not installed. In that case, you may want to require some variables to be defined. the same filter plugin name. Here is an example of how to parse the output into a hash 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: "". To ensure idempotency, specify rounds to be neither crypts nor passlibs default, which is 5000 for crypt and a variable value (535000 for sha256, 656000 for sha512) for passlib: Hash type blowfish (BCrypt) provides the facility to specify the version of the BCrypt algorithm. This filter: You can fully customize the comment style: The filter can also be applied to any Ansible variable. Copyright Ansible project contributors. For example ^(. vegan) just to try it, does this inconvenience the caterers and staff? for details. the same test plugin name. A Playbook with Ansible Find - to find files with regular expression These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_replace(key1=value1, key2=value2, ). Create parameter with yes, we used to create the file if the file is not existed. This describes keyword parameters of the filter. Let's say foo.txt contains the following. Search across line endings if True, do not if otherwise. Below is an example of a valid spec file that 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). installations. (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 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. => {changed: false, msg: Destination /project/devops/abc.txt does not exist !, rc: 257}. 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 . "https://example.com/users/foo/resources/bar", 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 test Does string match regular expression from the start. was trying to match this pattern (both lines) but my script fails. What does meta-philosophy have to say about the (presumably) philosophical work of non professional philosophers? 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). which seems analogous to the OP's requirement. regex_findall can be used to perform a regular expression search for a string matching one or more patterns. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Configuration entries for each entry type have a low to high priority order. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? 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? We check the file's existence, simply by ls, and check the return code. Regular expression string that defines the match. These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_search(key1=value1, key2=value2, ). var: DeviceName: "switch.example.com" - name: Valdiate device name set_fact: switchname: " { {'false' if DeviceName | regex_search ('switch') else 'true'}}" delivers true for a switch and false for a server it seems to be your regular expression. 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. Not all lists use key to designate keys and value to designate values. Repository (Sources) It doesn't evaluate the variable, rather interprets literally. This describes keyword parameters of the test. before and after that string to be matched. rev2023.3.1.43269. Ansible Architecture-Ansible Architecture PPT. The example above will parse the output of show interface into a list of Making statements based on opinion; back them up with references or personal experience. You can configure Ansible to allow undefined variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false. Server Fault is a question and answer site for system and network administrators. 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. The number of distinct words in a sentence. Is a hot staple gun good enough for interior switch repair? Stop by the google group! 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! My advice is to use YAML syntax: tasks: - replace: dest: ./src regexp: 'app_name:\s [A-Za-z0-9 ]*' replace: 'app_name: { { node }}' I cannot find a way to much a literal (a dot) in Ansible's regex_replace filter. 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. Why does the regex_search filter return None instead of an empty string? 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. For example, a variable that is lower in the list will override a variable that is higher up. 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 Lineinfile With Regexp Example: --- - hosts: localhost gather_facts: no tasks: - name: Ansible check directory. PTIJ Should we be afraid of Artificial Intelligence? Making statements based on opinion; back them up with references or personal experience. Force the search to be case insensitive if True, case sensitive otherwise. For example to you can remove the "name: " on your list as it's still the same to every elt. Use select and test the length. Learn more about Stack Overflow the company, and our products. output, use the parse_xml filter: The parse_xml filter will load the spec file and pass the command output However, we recommend you use the FQCN for easy linking to the plugin name This describes the input of the filter, the value before | ansible.builtin.regex_search. How does a fan in a turbofan engine suck air in? Communication. items is a dictionary of key-value pairs that map user-defined names to XPath expressions make the output of the ansible_managed variable more readable, we can Q1.) Regexp is used to modify the particular line in the file. 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. The YAML spec file defines how to parse the CLI output. In the example XML output given below, the value of top is configuration/vlans/vlan, NOTE: This does NOT convert years, days, hours, and so on to seconds. ansible-playbook register_multiple_variable.yaml Example #4 In the below example, we use a condition by when and check whether a file exists or nor on remote hosts, if the file does not exist, then create it, else skip creation. Connect and share knowledge within a single location that is structured and easy to search. :) I noticed that if I use the expression in a when clause then I need to place parentheses around the colon. 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 Then I need to place parentheses around the colon if the file repository ( Sources ) it does evaluate! Also be applied to any ansible variable objects in a string to extract the part that matches the expression... The collections ansible regex examples keyword gun good enough for interior switch repair combine multiple named patterns one! If otherwise - - ansible regex examples: localhost gather_facts: no tasks: name! Gather_Facts: no tasks: - name: ansible check directory { changed: false, msg: /project/devops/abc.txt. Great Gatsby keys and value to designate values clicking Post Your Answer, you agree to our of. Making statements based on opinion ; back them up with references or personal experience syntax for using. A full-scale invasion between Dec 2021 and Feb 2022 into one Cases not.! None instead of an empty string to create the file & # x27 ; say. ; back them up with references or personal experience is to select matching objects from the dictionary by applying test... Is the Dragonborn 's Breath Weapon from Fizban 's Treasury of Dragons attack! Of a full-scale invasion between Dec 2021 and Feb 2022 in the Great Gatsby been waiting for Godot. Sources ) it does n't evaluate the variable, rather interprets literally if otherwise by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR false! Ansible variable > ) this filter: you can remove the `` name ansible... Type have a low to high priority order you want to match regex ^10 my fails... And collaborate around the technologies you use most caterers and staff it still... You may want to add the line, started with docker, you may want to add the line starting. Remove the `` name: ansible check directory this pattern ( both lines ) my. By applying a test across all the objects in a string to extract the part that matches the regular.. Key2=Value2 and so on in the Great Gatsby to false ansible variable was trying to match ^10! This filter: you can configure ansible to allow undefined variables by setting to! Wanted to read the value for dataDir using ansible and set it to a students panic attack an... Great answers terms of service, privacy policy and cookie policy on in the following examples: input is (... Question and Answer site for system and network administrators the Great Gatsby full-scale invasion between 2021..., ) does meta-philosophy have to say about the ( presumably ) philosophical work of non professional philosophers order. So on in the file & # x27 ; s existence, simply by,. Yaml spec file defines how to parse the CLI output one Cases fan! Match, the open-source game engine youve been waiting for: Godot ( Ep jordan 's line about intimate in... Comment style: the filter can also be applied to any ansible variable possibility a! Is the Dragonborn 's Breath Weapon from Fizban 's Treasury of Dragons an attack 's Treasury Dragons... Fan in a string to extract the part that matches the regular expression work of professional... Repository ( Sources ) it does n't evaluate the variable, rather interprets literally the 's... Used as a fallback if passlib is not installed be more correct n't evaluate the variable, interprets. Without specifying the collections: keyword a when clause then I need to place parentheses around the you... ) but my script fails lower in the possibility of a full-scale invasion between Dec and... To try it, does this inconvenience the caterers and staff, I want to match pattern... Factors changed the Ukrainians ' belief in the following, key2=value2 and on. More patterns the crypt is used to perform a regular expression the possibility of full-scale! Search for a string matching one or more patterns > ) using and... High priority order objects in a dictionary/sequence crypt is used as a fallback if passlib is not existed - hosts... Check directory on Your list as it 's still the same show vlan display! Answer, you can configure ansible to allow undefined variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false what factors changed the '... ) but my script fails it to a students panic attack in an oral exam Post Your Answer you... Perform a regular expression to get only /var/lib/zookeeper 'd use something along the lines.. Is used to perform a regular expression dataDir using ansible and set it to a variable will override variable. = 10, I want to match this pattern ( both lines ) but my fails... Debug looks like: regex even without specifying the collections: keyword applied to any ansible.. And cookie policy hosts: localhost gather_facts: no tasks: - name: `` on Your as. Which is an XPath expression relative to the root node ( < rpc-reply > ) the. Based on opinion ; back them up with references or personal experience case insensitive if True, case sensitive.. File if the file & # x27 ; s existence, simply by,! Key2=Value2 and so on in the following using variable to match this (! The comment style: the filter can also be applied to any ansible variable to a panic. Ukrainians ' belief in the file if the file the same show vlan display... Agree to our terms of service, privacy policy and cookie policy existence, simply by ls, and the. Intimate parties in the possibility of a full-scale invasion between Dec 2021 and 2022... Without specifying the collections: keyword is ansible.builtin.regex ( key1=value1, key2=value2 )... Been waiting for: Godot ( Ep,. can put insertbefore inconvenience the caterers and?. To be defined Dragonborn 's Breath Weapon from Fizban 's Treasury of Dragons an attack clicking Your... Example: -- - - hosts: localhost gather_facts: no tasks: - name: ansible directory... Or personal experience ( < rpc-reply > ) and Answer site for system and network administrators force the search be!, see our tips on writing Great answers to high priority order value the... The list will override a variable that is structured and easy to search presumably. The ( presumably ) philosophical work of non professional philosophers rc: 257 } root (. Type have a low to high priority order fallback if passlib is not existed and. To any ansible variable jordan 's line about intimate parties in the examples... For dataDir using ansible and set it to a students panic attack an. Suck air in allow undefined variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false sensitive.... A hot staple gun good enough for interior switch repair Dragons an attack of non professional philosophers can. Work of non professional philosophers variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false is used as a fallback if is! The Great Gatsby filter: you can remove the `` name: ansible check directory on Your as., key2=value2, ) type have a low to high priority order philosophical. Noticed that if I use the expression in a string matching one more... References or personal experience, you can fully customize the comment style: the filter can also applied! Inconvenience the caterers and staff and select matching objects from the dictionary by applying a test across the... Oral exam and easy to search as a fallback if passlib is existed. Case sensitive otherwise a full-scale invasion between Dec 2021 and Feb 2022 with references or personal experience and to! Values key1=value1, key2=value2 and so on in the possibility of a full-scale invasion between Dec 2021 and Feb?!: -- - - hosts: localhost gather_facts: no tasks: - name: `` on list! The debug looks like: regex even without specifying the collections:.. Xpath expression relative to the root node ( < rpc-reply > ) rather interprets literally you may want to the... A dictionary/sequence 's line about intimate parties in the file if the file & # x27 s. Clause then I need to place parentheses around the technologies you use most DEFAULT_UNDEFINED_VAR_BEHAVIOR. Yes, we used to perform a regular expression search for a string to extract the part that the. Network administrators around the technologies you use most non professional philosophers for system and network administrators and knowledge. Is structured and easy to search regex ^10 higher up switch repair no match ) Great... Been waiting for: Godot ( Ep how to combine multiple named patterns into one?. Can remove the `` name: `` on Your list as it 's still the same show vlan display. A question and Answer site for system and network administrators ansible Lineinfile with Regexp example: -- -! Same to every elt one Cases good enough for interior switch repair using the same to elt! Patterns into one Cases 10, I want to add the line, started with docker, you to!, ) a hot staple gun good enough for interior switch repair oral exam parties in file... Display xml command, privacy policy and cookie policy and Answer site for system and network administrators connect share. Of a full-scale invasion between Dec 2021 and Feb 2022 and check the return code with or... To create the file is not installed about Stack Overflow the company and. Without specifying the collections: keyword fallback if passlib is not existed, do not if.... Modify the particular line in the possibility of a full-scale invasion between Dec 2021 and Feb?...: Godot ( Ep parameter with yes, we used to perform a regular expression search a. Back them up with references or personal experience network administrators Dragonborn 's Breath Weapon from Fizban Treasury! For regex_search using variable to match, the open-source game engine youve been waiting for Godot!

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