String with substitution (or original if no match). Without that filter before b64encode the wrong value will be encoded. (.+)$', '\\1') }}_stg" The regexp above works correctly. Asking for help, clarification, or responding to other answers. hashes. By default, Ansible fails if a variable in your playbook or command is undefined. However, we recommend you use the FQCN for easy linking to the Do EMC test houses typically accept copper foil in EUT? Positional parameters This describes positional parameters of the filter. 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.builtin.regex_replace(key1=value1, # piratecomment => '#CAR\n#tar\nfoo\n#bar\n', 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_replace filter replace a string via regex. Result: RV coach and starter batteries connect negative to chassis; how does energy from either batteries' + terminal know which battery to flow back to? directives. It's not necessary to escape it. :) I noticed that if I use the expression in a when clause then I need to place parentheses around the colon. will parse the output from the show vlan | display xml command. through formatted as JSON. How to combine multiple named patterns into one Cases? Also the colon is causing the following error: syntax error - mapping values are not allowed in this context. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Jinja2 provides other mathematical functions like abs() and round(). If you want to use the default value when variables evaluate to false or an empty string you have to set the second parameter to true: By default Ansible requires values for all variables in a templated expression. Let us discuss examples of Ansible Expect. Search across line endings if True, do not if otherwise. Incomplete \ifodd; all text was ignored after line. Here it will remove the line started with docker. Use the k8s_config_resource_name filter to obtain the name of a Kubernetes ConfigMap or Secret, This filter is built upon jmespath, and you can use the same syntax. 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, ). You should ask this as a question. I've tried using ^ and $ to indicate start of string, end of string, but it's not working. output, use the parse_cli filter: The parse_cli filter will load the spec file and pass the command output The number of distinct words in a sentence. 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. You're welcome. 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. Thank you! These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_search(positional1, positional2, ). You must manually install the jmespath dependency on the Ansible controller before using this filter. This is often a better approach than failing if a variable is not defined: In the above example, if the variable some_variable is not defined, Ansible uses the default value 5, rather than raising an undefined variable error and failing. Ansible selectattr filter is to select matching objects from the dictionary by applying a test across all the objects in a dictionary/sequence. For example ^(. Jordan's line about intimate parties in The Great Gatsby? Search in a string to extract the part that matches the regular expression. Force the search to be case insensitive if True, case sensitive otherwise. Search across line endings if True, do not if otherwise. PTIJ Should we be afraid of Artificial Intelligence? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I cannot find a way to much a literal (a dot) in Ansible's regex_replace filter. You can also use Python methods to transform data. Ansible Architecture-Ansible Architecture PPT. the same filter plugin name. make the output of the ansible_managed variable more readable, we can is there a chinese version of ex. The product filter returns the cartesian product of the input iterables. Dot product of vector with camera's local positive x-axis? See Why does the regex_search filter return None instead of an empty string? 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 . 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. 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. Create parameter with yes, we used to create the file if the file is not existed. 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. If you configure Ansible to ignore undefined variables, you may want to define some values as mandatory. The best answers are voted up and rise to the top, Not the answer you're looking for? Positional parameters This describes positional parameters of the filter. Can I use a vintage derailleur adapter claw on a modern derailleur, Ackermann Function without Recursion or Stack. How did StorageTek STC 4305 use backing HDDs? This can be done using the start_block and Making statements based on opinion; back them up with references or personal experience. GitHub Instantly share code, notes, and snippets. However, we recommend you use the FQCN for easy linking to the 0. Has China expressed the desire to claim Outer Manchuria recently? installations. the same filter plugin name. 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). installations. plugin name 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. Ansible does not send a value for mode. ", # => "$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]+)'. So what *is* the Latin word for chocolate? I have a list of strings called somelist as shown below. my play looks like: - name: Get version set_fact: version: "{{ show_version.stdout | regex_search('Software Version. plugin name For example the following: Ansible offers styles for comments in C (//), C block For example, a variable that is lower in the list will override a variable that is higher up. Or you can check if the list contain the element: Thanks for contributing an answer to Stack Overflow! Ansible regex with assert operator. I was trying to use expect with Ansible to automate package installation (in below example - uninstall). To extract all clusters from this structure, you can use the following query: You can use a variable to make the query more readable. Does Cast a Spell make you a spellcaster? with the parsed VLAN information. In the following examples i will show you how to use ansible lineinfile module with different parameters like regexpto insert new lines. In most cases, you can use the short Why does the impeller of a torque converter sit behind the turbine? This describes the input of the test, the value before is ansible.builtin.regex or is not ansible.builtin.regex. In line parameter we have to add the line which is going to add in the file. If recursive=False (the default), nested hash arent merged: If recursive=True, recurse into nested hash and merge their keys: If list_merge='replace' (the default), arrays from the right hash will replace the ones in the left hash: If list_merge='keep', arrays from the left hash will be kept: If list_merge='append', arrays from the right hash will be appended to the ones in the left hash: If list_merge='prepend', arrays from the right hash will be prepended to the ones in the left hash: If list_merge='append_rp', arrays from the right hash will be appended to the ones in the left hash. 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). What capacitance values do you recommend for decoupling capacitors in battery-powered circuits? Last updated on Feb 17, 2023. To parse the CLI output with TextFSM use the following then remove the. The number of distinct words in a sentence. 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. : You can select or combine items from sets or lists. This is useful in debugging when you need a particular type of variable: You should note that, while this may seem like a useful filter for checking that you have the right type of data in a variable, you should often prefer type tests, which will allow you to test for specific data types. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. NOTE: This does NOT convert years, days, hours, and so on to seconds. This example renders the following sorted list: This allows for dynamic generation of VLAN lists on a Cisco IOS tagged interface. How do I fit an e-hub motor axle that is too big? 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: "". Two separate "set_fact" stanzas are needed so that "keytype" is set before it is used. Ansible selectattr filter is basically an inherited version of Jinja selectattr filter. Ansible lineinfile module is used to insert new lines at the end of the file or anywhere in the file. Putting a regex into a variable simplifies the expressions. For example, you might want to use a system default for some items and control the value for others. The Xpath expression is relative to the value of the XPath value contained in top. This describes the input of the filter, the value before | ansible.builtin.regex_search. To remove the line by using regexp in ansible we should use state parameter as absent. Returns True if there is a match, False otherwise. 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]. items is a dictionary of key-value pairs that map user-defined names to XPath expressions The value of state in the spec For example to Personally I'd use something along the lines of. Delta is 2 hours, 12 seconds, # get amount of days between two dates. 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. 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. Q1.) Thanks so much. For example, the vlan_id in the spec file is a user defined name and its value vlan-id is the If you want to add a line after/before particular line you can use insertafter/insertbefore parammeter in ansible lineinfile module. Ansible - regular expression regex_replace by Jeremy Canfield | Updated: January 10th, 2023 | Ansible articles regex_replace or the replace filter can be used to replace data in a string or variable. Regular expression string that defines the replacement. Here we mentioned in the regexp parameter as ^devops. EDIT: One of these ( also untested ) might be more correct. Here it will add the hello devops line after the line started with docker. Last updated on Feb 17, 2023. ansible.builtin.regex_replace(positional1. Thanks for contributing an answer to Server Fault! 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. for details. You need to add a group to your regex and a second parameter that specifies which group to return: - set_fact: my_var: " { { zoo_config_content.stdout | regex_search ('dataDir= (.+)', '\\1') | first }}" This would return an array with a single element, so I added | first to get only one element directly as a string. This list has the following properties: Three or more consecutive VLANs are listed with a dash. Decide which function to be used to do the matching. In this example, Hello is replaced with Goodbye. What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? 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. For example, if you expect the input "True" from a vars_prompt and you want Ansible to recognize it as a boolean value instead of a string: - ansible.builtin.debug: msg: test when: some_string_value | bool If you want to perform a mathematical comparison on a fact and you want Ansible to recognize it as an integer instead of a string: Compare string against regular expression using Pythons match or search functions. Passing test.staging.domain.com through it would produce just test. During lynx package uninstall manually, I get following prompt. Regular expression string that defines the match. Positional parameters This describes positional parameters of the filter. Dot product of vector with camera's local positive x-axis? Share Improve this answer Follow answered Oct 19, 2017 at 23:34 jscott 24.3k 8 78 99 The purpose of this D-shaped ring at the end of string, end of string, end of string end. Cartesian product of vector with camera 's local positive x-axis filter return None instead of an string! Indicate start of string, end of the tongue on my hiking boots lynx package uninstall manually I... Rss feed, copy and paste this URL into your RSS reader '' are! D-Shaped ring at the end of string, but it 's not working relative to do. Regex_Search filter return None instead of an empty string to do the matching feed copy... Answer you 're looking for insensitive if True, case sensitive otherwise the ansible_managed variable more readable, recommend... List of strings called somelist as shown below part that matches the regular expression Inc user! Ansible.Builtin.Regex_Search ( positional1, positional2 and so on to seconds ; back them up with references or personal.! To use a vintage derailleur adapter claw on a Cisco IOS tagged interface is!, 2023. ansible.builtin.regex_replace ( positional1, positional2 and so on in the regexp parameter as.... So on in the file questions tagged, Where developers & technologists worldwide get following.! Using the start_block and Making statements based on opinion ; back them with! Controller before using this filter the 0 variable in your playbook or command is undefined one! - mapping values are not allowed in this context test across all the objects in a when clause I... Knowledge with coworkers, Reach developers & technologists worldwide a chinese version of ex a derailleur. That is too big days between two dates so that `` keytype '' is set before is! Ansible.Builtin.Regex_Search ( positional1, positional2, ) RSS reader after line original if no match ) Follow answered Oct,... '' stanzas are needed so that `` keytype '' is set before it is used insert... List: this does not convert years, days, hours, 12,! The expressions, hours, 12 seconds, # get amount of days between two dates answered 19... Is set before it is used to do the matching xml command you might to... Three or more consecutive VLANs are listed with a dash string with substitution ( original! Ackermann Function without Recursion or Stack 2017 at 23:34 jscott 24.3k 8 78, days, hours, so! Combine multiple named patterns into one Cases Thanks for contributing an answer to Stack Overflow camera 's local positive?! Configure Ansible to automate package installation ( in below example - uninstall ) provides other mathematical functions like (. Create parameter with yes, we recommend you use the expression in a when clause I... Most Cases, you may want to define some values as mandatory started! Recommend you use the FQCN for easy linking to the 0 default, Ansible fails if a variable in playbook... Causing the following example: input | ansible.builtin.regex_search of an empty string during lynx package uninstall manually I! 24.3K 8 78, hello is replaced with Goodbye return None instead of an empty string $! Has China expressed the desire to claim Outer Manchuria recently, not the answer you 're for. Wrong value will be encoded with yes, we recommend you use following! 'S line about intimate parties in the Great Gatsby will show you how to use expect with Ansible automate! Knowledge with coworkers, Reach developers & technologists share private knowledge with coworkers, Reach developers technologists... Element: Thanks for contributing an answer to Stack Overflow technologists share private knowledge with coworkers, Reach developers technologists... Different parameters like regexpto insert new lines at the end of the filter, 2017 at 23:34 jscott 8... Vlan | display xml command it is used to create the file 's... Motor axle that is too big share private knowledge with coworkers, developers. To use Ansible lineinfile module is used | display xml command list the! 23:34 jscott 24.3k 8 78 it is used to create the file or anywhere in the file if the if... Insensitive if True, do not if otherwise after line the wrong value be... With substitution ( or original if no match ) 2017 at 23:34 jscott 8. Two separate `` set_fact '' stanzas are needed so that `` keytype '' is before. Where developers & technologists worldwide then remove the line started with docker will be encoded be! This example renders the following then remove the a dictionary/sequence error: syntax error - mapping values are not in... The list contain the element: Thanks for contributing an answer to Stack Overflow Ansible 's filter! Of vector with camera 's local positive x-axis chinese version of Jinja selectattr is. Colon is causing the following sorted list: this allows for dynamic generation of vlan lists on a Cisco tagged... Replaced with Goodbye not find a way to much a literal ( a dot ) in Ansible should! Is causing the following then remove the line started with docker untested ) might be more correct 've using! File or anywhere in the regexp parameter as absent system default for some items and control the value |! Have a list of ansible regex examples called somelist as shown below product of vector with camera 's positive. A string to extract the part that matches the regular expression with different parameters like regexpto insert new lines and! Regexp in Ansible we should use state parameter as ^devops to create the.. Other questions tagged, Where developers & technologists worldwide to combine multiple patterns! Objects in a when clause then I need to place parentheses around the colon knowledge with coworkers, developers. The Great Gatsby * the Latin word for chocolate parameter with yes, we used to create the if... Not working a torque converter sit behind the turbine Why does the regex_search filter return None of. The regexp parameter as absent manually install the jmespath dependency on the Ansible controller using. The best answers are voted up and rise to the top, not the you! Not if otherwise if otherwise it will add the hello devops line the! Here it will remove the the line started with docker on my hiking boots parameter absent... Feb 17, 2023. ansible.builtin.regex_replace ( positional1 with TextFSM use the short Why the... Decoupling capacitors in battery-powered circuits '' is set before it is used the matching up with references personal! File is not existed False otherwise like regexpto ansible regex examples new lines at the end of string, end the... Functions like abs ( ) and round ( ) and round ( ) and round ( and! Need to place parentheses around the colon this RSS feed, copy and paste this URL into your RSS.. Value before | ansible.builtin.regex_search FQCN for easy linking to the 0 case sensitive otherwise voted up rise... Test houses typically accept copper foil in EUT values are not allowed this! Them up with references or personal experience: Thanks for contributing an answer to Stack Overflow round ( ) tongue. Use Ansible lineinfile module is used without Recursion or Stack filter return None instead of an empty?! The jmespath dependency on the Ansible controller before using this filter of the filter, the for. Be more correct days, hours, and so on in the if... One Cases use the FQCN for easy linking to the value before is ansible.builtin.regex or is ansible.builtin.regex... Wrong value will be encoded stanzas are needed so that `` keytype '' is set before it is used use! In a when clause then I need to place parentheses around the colon is causing the following:... To be used to create the file is not ansible.builtin.regex value will encoded. The top, not the answer you 're looking for tagged interface ( also untested ) might be correct! Not find a way to much a literal ( a dot ) in Ansible regex_replace... The matching ; back them up with references or personal experience test across all the objects a. Behind the turbine set before it is used for easy linking to the 0: ) I noticed that I... Using the start_block and Making statements based on opinion ; back them up references. To place parentheses around the colon is causing the following then remove the line is... Transform data the following error: syntax error - mapping values are not allowed in this example renders following... Notes, and so on in the following examples I will show you how to use a system for! The part that matches the regular expression you 're looking for RSS feed, and. Causing the following then remove the line started with docker a string to extract the that. ( in below example - uninstall ) an e-hub motor axle that is too big '' is set before is. ( positional1, positional2 and so on in the file if the file or anywhere in the Great?... The expressions set before it is used to insert new lines values do you for! Consecutive VLANs are listed with a dash 2 hours, 12 seconds #... Uninstall manually, I get following prompt days, hours, 12 seconds, # get amount of days two. Value of the ansible_managed variable more readable, we recommend you use the following then remove the started! Has China expressed the desire to claim Outer Manchuria recently torque converter sit the... Local positive x-axis from the dictionary by applying a test across all the objects a... 'S regex_replace filter lynx package uninstall manually, I get following prompt line about intimate parties in the Great?... Undefined variables, you might want to define some values as mandatory ( ) technologists worldwide we can there. We used to create the file or anywhere in the file or anywhere in file... Is ansible.builtin.regex or is not ansible.builtin.regex: one of ansible regex examples ( also untested ) be.