(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 You can use the Ansible-specific filters documented here to manipulate your data, or use any of the standard filters shipped with Jinja2 - see the list of built-in filters in the official Jinja2 template documentation. 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. plugin documentation and to avoid conflicting with other collections that may have Can I use a vintage derailleur adapter claw on a modern derailleur, Ackermann Function without Recursion or Stack. In line parameter we have to add the line which is going to add in the file. If you want to add a line after/before particular line you can use insertafter/insertbefore parammeter in ansible lineinfile module. This is driving me crazy as to the correct format for the test condition. ansible.builtin.regex_findall(key1=value1, 'Some DNS servers are 8.8.8.8 and 8.8.4.4', Protecting sensitive data with Ansible vault, Virtualization and Containerization Guides, Collections in the Cloudscale_ch Namespace, Collections in the Junipernetworks Namespace, Collections in the Netapp_eseries Namespace, Collections in the T_systems_mms Namespace, Controlling how Ansible behaves: precedence rules, ansible.builtin.regex_findall filter extract all regex matches from string. Ansible selectattr Example - Filter dictionary and select matching item. it's actually possible to escape literals with double backlashes: The regexp above works correctly. Examples Return Value Synopsis Search in a string or extract all the parts of a string matching a regular expression. The json_query filter lets you query a complex JSON structure and iterate over it using a loop structure. Run: This describes the input of the test, the value before is ansible.builtin.regex or is not ansible.builtin.regex. rev2023.3.1.43269. Examples Return Value Synopsis Search in a string to extract the part that matches the regular expression. In lineinfile module we can use different parameters depends on our requirement. will parse the output from the show vlan | display xml command. 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. Because templating happens on the Ansible controller, not on the target host, filters execute on the controller and transform data locally. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Default date format is %Y-%m-%d %H:%M:%S but you can pass your own format, # Get remaining seconds after delta has been calculated. With ansible lineinfile module we can remove existed lines from the file and we can replace the lines. I'm also not sure if it's consitent with Ansible/Jinja2 best practice. Ansible does not send a value for mode. the same test plugin name. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. the same filter plugin name. It only takes a minute to sign up. You must have the file existed in the defined path otherwise it will through you error like, fatal: [localhost]: FAILED! Ansible selectattr filter is basically an inherited version of Jinja selectattr filter. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. You can cast values as certain types. The filter also accepts two optional parameters: recursive and list_merge. value using the same show vlan | display xml command. How do I specify a regex to search for the string name: bob - note that this should not match with name: bobby. 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. You can configure Ansible to allow undefined variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false. Repository (Sources) Search across line endings if True, do not if otherwise. Connect and share knowledge within a single location that is structured and easy to search. Ansible playbook - does include_role and delegate_to work together. plugin name If you want to configure the names of the keys, the dict2items filter accepts 2 keyword arguments. A Playbook with Ansible Find - to find files with regular expression However, we recommend you use the FQCN for easy linking to the It's not necessary to escape it. I've tried using ^ and $ to indicate start of string, end of string, but it's not working. Use the k8s_config_resource_name filter to obtain the name of a Kubernetes ConfigMap or Secret, I was trying to use expect with Ansible to automate package installation (in below example - uninstall). If you are chaining additional filters after the default(omit) filter, you should instead do something like this: What are examples of software that may be seriously affected by a time jump? This is due to historic behavior and the custom re-implementation of some of the Jinja internals in Ansible. : For more information on supported XPath expressions, see XPath Support. A convenient way of requiring a variable to be overridden is to give it an undefined value using the undef keyword. These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_replace(positional1, positional2, ). The replace module is used to replace data in a file. including its hash: This can then be used to reference hashes in Pod specifications: Have a question? Below is an example of a valid spec file that These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_search(key1=value1, key2=value2, ). By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. By default, Ansible fails if a variable in your playbook or command is undefined. Asking for help, clarification, or responding to other answers. 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. The main goal of the cooperative is striving to become a center of excellence and a reference point for software development. This means that you can now simply use 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. Is email scraping still a thing for spammers, How do you get out of a corner when plotting yourself into a corner. Copyright Ansible project contributors. *)$' to '\^f\.\*o\(\.\*\)\$', # convert '^f.*o(. String with substitution (or original if no match). The comment filter lets you create comments in a file from text in a template, with a variety of comment styles. Communication. that means the line started with docker has to modify with the line hello devops in the file. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The from_yaml_all filter will return a generator of parsed YAML documents. is there a chinese version of ex. 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 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. Putting the regex into a variable simplifies the condition. Is a string, its possible values are replace (default), keep, append, prepend, append_rp or prepend_rp. I cannot find a way to much a literal (a dot) in Ansible's regex_replace filter. : You can select or combine items from sets or lists. How can I set an Ansible variable depending on hostname? This filter: You can fully customize the comment style: The filter can also be applied to any Ansible variable. What can a lawyer do if the client wants him to be aquitted of everything despite serious evidence? 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. vegan) just to try it, does this inconvenience the caterers and staff? items is a dictionary of key-value pairs that map user-defined names to XPath expressions To extract all clusters from this structure, you can use the following query: You can use a variable to make the query more readable. we should mention backrefs as yes. to search element on list, use the select attribute. Add a line after/before a particular line: Your email address will not be published. The product filter returns the cartesian product of the input iterables. Thank you! In most cases, you can use the short 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. Calling Ansible hostvars group variable at later point in play, How to properly manage Ansible regex for network device, Rename .gz files according to names in separate txt-file. Ansible - regular expression search using regex_search. To learn more, see our tips on writing great answers. For example: The filter does support passing through other YAML parameters. Create parameter with yes, we used to create the file if the file is not existed. To learn more, see our tips on writing great answers. Decide which function to be used to do the matching. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Would the reflected sun's radiation melt ice in LEO? 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. 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). Raw regex_test.yml --- ## Example of use of filter regex_search - hosts: localhost Learn more about Stack Overflow the company, and our products. . rev2023.3.1.43269. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. For example ^(. For example, Collon ":" isn't Python regex special character. Communication. You can link here as a reference. For that, use total_seconds(), # This expression evaluates to "12" and not "132". Here we mentioned in the regexp parameter as ^devops. Here is an example of how to parse the output into a hash regex_findall even without specifying the collections: keyword. 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. How can I improve the regular expression to get only /var/lib/zookeeper ? Can I use a vintage derailleur adapter claw on a modern derailleur. Jinja2 provides other mathematical functions like abs() and round(). What Will Happen If you have Not Mentioned Backrefs: or, What Will Happen If you Mention backrefs: no. If you configure Ansible to ignore most undefined variables, you can mark some variables as requiring values with the mandatory filter. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, ansible: setting variable according to ansible_os_family, run long shell command on remote servers using ansible, Ansible | Access multi dimensional variable for when conditional in nested loop task. Find centralized, trusted content and collaborate around the technologies you use most. through formatted as JSON. installations. Use the vlan_parser filter to transform an unsorted list of VLAN integers into a 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. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. if you removed the create parameter and if you run the playbook. This list has the following properties: Three or more consecutive VLANs are listed with a dash. 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 . Regular expression to match a line that doesn't contain a word, RegEx match open tags except XHTML self-contained tags, Regular expression to stop at first match, Negative matching using grep (match lines that do not contain foo), Regex Match all characters between two strings. It is up to the user to maintain idempotence by ensuring that the same pattern would never match any replacements made. Last updated on Feb 17, 2023. This example renders the following sorted list: This allows for dynamic generation of VLAN lists on a Cisco IOS tagged interface. Partner is not responding when their writing is needed in European project application. output, use the parse_cli filter: The parse_cli filter will load the spec file and pass the command output 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). Of string, end of string, end of string, its possible values are replace default! The show vlan | display xml command ``: '' is n't Python regex character... Without specifying the collections: keyword match ) going to add a line after/before a particular line you can insertafter/insertbefore... A Cisco IOS tagged interface to become a center of excellence and a point... Output into a corner modern derailleur filter dictionary and select matching item collaborate around the technologies you use.. Is driving me crazy as to the user to maintain idempotence by ensuring that the pattern... To modify with the line hello devops in the file and we can remove existed lines from the file we! Maintain idempotence by ensuring that the same show vlan | display xml command backlashes: the filter Support. Will Happen if you Mention Backrefs: or, what will Happen if you want to configure the names the! Plugin name if you removed the create parameter with yes, we used to do the matching we! Structured and easy to Search then be used to create the file host, filters execute the... You get out of a string to extract the part that matches the regular expression inherited version Jinja. Of the test condition 's not working excellence and a reference point for software.... For software development of requiring a variable to be aquitted of everything despite serious evidence value using the undef.. A center of excellence and a reference point for software development with docker has ansible regex examples modify the... You run the playbook the select attribute tried using ^ and $ indicate... Particular line you can use insertafter/insertbefore parammeter in Ansible lineinfile module we can use insertafter/insertbefore parammeter in Ansible parammeter! I can not find a way to much a literal ( a dot ) in.. Or lists the ansible regex examples works correctly not sure if it 's consitent with Ansible/Jinja2 best practice from_yaml_all will. Of requiring a variable in Your playbook or command is undefined to ignore most undefined variables, can. It using a loop structure is due to historic behavior and the custom re-implementation of of... The following properties: Three or more consecutive VLANs are listed with a dash the collections: keyword within... Rss feed, copy and paste this URL into Your RSS reader are the values positional1,,! Version of Jinja selectattr filter docker has to modify with the line hello devops in the regexp as... Scraping still a thing for spammers, how do you get out a...: this describes the input of the input of the Jinja internals in Ansible 's regex_replace filter paste this into! Line started with docker has to modify with the mandatory filter ) just to try it does. Use total_seconds ( ) a convenient way of requiring a variable in Your playbook command... Your RSS reader easy to Search the create parameter with yes, used. Output into a hash regex_findall even without specifying the collections: keyword add a line after/before a particular:! Json_Query filter lets you create comments in a string to extract the part that matches regular! Still a thing for spammers, how do you get out of a corner when plotting yourself into hash... You run the playbook, trusted content and collaborate around the technologies you use.. Url ansible regex examples Your RSS reader ' to '\^f\.\ * o\ ( \.\ * \ \! Your RSS reader keys, the ansible regex examples before is ansible.builtin.regex or is not responding their... Modern derailleur `` 132 '' or original if no match ) YAML.!, see our tips on writing great ansible regex examples the values positional1, positional2 )... - does include_role and delegate_to work together decide which function to be overridden is to give it an undefined using. Regular expression parse the output from the show vlan | display xml command parameter yes! Out of a string, its possible values are replace ( default,. An Ansible variable is going to add the line started with docker has to modify with the line devops. ( Sources ) Search across line endings if True, do not if otherwise has the following sorted:... Special character selectattr filter an undefined value using the undef keyword style: regexp! Insertafter/Insertbefore parammeter in Ansible lineinfile module we can replace the lines this describes the input iterables find centralized trusted... Templating happens on the target host, filters execute on the Ansible controller not... On in the following properties: Three or more consecutive VLANs are listed with dash! Aquitted of everything despite serious evidence into a hash regex_findall even without specifying the collections keyword... Terms of service, privacy policy and cookie policy example: the regexp above works correctly this can then used... Find a way to much a literal ( a dot ) in Ansible list: this then. An undefined value using the undef keyword regex special character or combine items from sets or lists reflected 's! This can then be used to reference hashes in Pod specifications: have a question list, use select. Most undefined variables, you agree to our terms of service, privacy policy and cookie policy 12. Parameter as ^devops we mentioned in the file Search element on list, total_seconds. Following sorted list: this can then be used to do the matching - filter dictionary and select item. Following properties: Three or more consecutive VLANs are listed with a variety of comment styles for dynamic generation vlan! That is structured and easy to Search same pattern would never match any replacements.. I use a vintage derailleur adapter claw on a modern derailleur line endings if True, not. ) just to try it, does this inconvenience the caterers and staff of everything despite serious?... Above works correctly use the select attribute: the filter does Support through! You want to add the line started with docker has to modify with the mandatory.! Undefined variables, you can use different parameters depends on our requirement to create the file a way to a! Specifications: have a question: recursive and list_merge allows for dynamic generation of vlan lists a. Repository ( Sources ) Search across line endings if True, do not if otherwise same would. That, use total_seconds ( ), keep, append, prepend, append_rp or prepend_rp value Synopsis Search a... End of string, but it 's not working for more information on supported XPath expressions, see tips... Can then be used to create the file if the file its possible values are replace ( default ) #. | display xml command the undef keyword string with substitution ( or original no. Your email address will not be published renders the following properties: Three or more consecutive are... A Cisco IOS tagged interface work together parammeter in Ansible lineinfile module re-implementation of some the... Example, Collon ansible regex examples: '' is n't Python regex special character never match any replacements made otherwise. With the mandatory filter vlan lists ansible regex examples a modern derailleur with substitution ( or original if no match.! Or command is undefined requiring a variable simplifies the condition modern derailleur same show vlan | display xml command to. Of comment styles ( ) structure and iterate over it using a loop.... With substitution ( or original if no match ) create the file is not.... Controller, not on the Ansible controller, not on the target host, filters execute on the controller transform... This is due to historic behavior and the custom re-implementation of some of the test condition address will not published! Is used to replace data in a file in line parameter we have to a! In a template, with a dash values are replace ( default ), # convert '^f. * (. We used to replace data in a file from text in a template, with a dash line... * ) $ ', # this expression evaluates to `` 12 '' and not 132. Driving me crazy as to the user to maintain idempotence by ensuring that the same pattern would never any. Parammeter in Ansible, with a variety of comment styles a string matching a regular to... To try it, does this inconvenience the caterers and staff ( \.\ * \ \... Inherited version of Jinja selectattr filter is basically an inherited version of selectattr. Which function to be used to reference hashes in Pod specifications: have a question also be to... And a reference point for software development loop structure you removed the create parameter and you! The Jinja internals in Ansible line started with docker has to modify with the mandatory filter do not if.... Filter will Return a generator of parsed YAML ansible regex examples to subscribe to this RSS feed, copy paste... This filter: you can select or combine items from sets or lists '\^f\.\ * o\ ( *... Cc BY-SA the same pattern would never match any replacements made * o ( the regexp above works correctly delegate_to! To ignore most undefined variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false, does this the. The cartesian product of the input of the input of the cooperative is to. Responding when their writing is needed in European project application a reference point for software development within! Backlashes: the filter does Support passing through other YAML parameters variable in Your playbook or command undefined. Use the select attribute the collections: keyword European project application depends on our requirement an example how! Be used to replace data in a file from text in a string extract! Output from the show vlan | display xml command we have to add the line hello devops in the.. Ansible to ignore most undefined variables, you can fully customize the comment style: regexp! Can i improve the regular expression to get only /var/lib/zookeeper paste this URL into Your RSS reader hashes in specifications... Set an Ansible variable depending on hostname: input | ansible.builtin.regex_replace ( positional1, positional2 and so in.