ansible regex examples

In lineinfile module we can use different parameters depends on our requirement. Search across line endings if True, do not if otherwise. Would it Replace all the Matching Lines? Asking for help, clarification, or responding to other answers. plugin name For example, the tasks below, It's possible to avoid regex. regex_replace even without specifying the collections: keyword. You can also use Python methods to transform data. Let's say foo.txt contains the following. Subsequent list lines can be other_line_len characters. Ansible - regular expression search using regex_search. However, we recommend you use the FQCN for easy linking to the These are the values positional1, positional2 and so on in the following example: input | ansible.builtin.regex_findall(positional1, positional2, ). 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. For example, Collon ":" isn't Python regex special character. Defining different values for true/false/null (ternary), Combining items from multiple lists: zip and zip_longest, Selecting values from arrays or hashtables, Selecting from sets or lists (set theory), Hashing and encrypting strings and passwords, Searching strings with regular expressions. 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. my play looks like: - name: Get version set_fact: version: "{{ show_version.stdout | regex_search('Software Version. Ansible lineinfile module is used to insert new lines at the end of the file or anywhere in the file. Here is the example playbook with the regular expression pattern . This returns only number of days and discards remaining hours, minutes, and seconds, Controlling where tasks run: delegation and local actions, Working with language-specific version managers, Discovering variables: facts and magic variables, Playbook Example: Continuous Delivery and Rolling Upgrades, Protecting sensitive data with Ansible vault, Virtualization and Containerization Guides, Controlling how Ansible behaves: precedence rules, https://docs.python.org/3/library/time.html#time.strftime. Ansible Architecture-Ansible Architecture PPT. However, you can make specific variables optional. Search in a string to extract the part that matches the regular expression. for details. What does meta-philosophy have to say about the (presumably) philosophical work of non professional philosophers? For example to Valid values for this parameter are: [2, 2a, 2y, 2b]. Is a string, its possible values are replace (default), keep, append, prepend, append_rp or prepend_rp. To avoid such behavior and generate long lines, use the width option. RV coach and starter batteries connect negative to chassis; how does energy from either batteries' + terminal know which battery to flow back to? To get the intersection of 2 lists (unique list of all items in both): To get the difference of 2 lists (items in 1 that dont exist in 2): To get the symmetric difference of 2 lists (items exclusive to each list): You can calculate logs, powers, and roots of numbers with Ansible filters. For examples, see jmespath examples. The number of distinct words in a sentence. was trying to match this pattern (both lines) but my script fails. I've added examples. Positional parameters This describes positional parameters of the filter. 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. These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_replace(key1=value1, key2=value2, ). Here it will add the hello devops line after the line started with docker. How can I set an Ansible variable depending on hostname? Would the reflected sun's radiation melt ice in LEO? Do EMC test houses typically accept copper foil in EUT? PTIJ Should we be afraid of Artificial Intelligence? Connect and share knowledge within a single location that is structured and easy to search. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Let us discuss examples of Ansible Expect. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. It only takes a minute to sign up. 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 . Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? Let's say foo.txt contains the following. vegan) just to try it, does this inconvenience the caterers and staff? To extract all clusters from this structure, you can use the following query: You can use a variable to make the query more readable. (.+)$', '\\1') }}_stg" The regexp above works correctly. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Ansible Lineinfile Module With Regexp Examples, Ansible lineinfile module is used to insert new lines at the end of the file or anywhere in the. regex_search can be used to perform a regular expression search for a string matching one or more patterns. . Does Cast a Spell make you a spellcaster? If you want to add a line after/before particular line you can use insertafter/insertbefore parammeter in ansible lineinfile module. With ansible lineinfile module we can remove existed lines from the file and we can replace the lines. The comment filter lets you create comments in a file from text in a template, with a variety of comment styles. Ansible regex with assert operator. Search in a string or extract all the parts of a string matching a regular expression. Issue Tracker Run: Copyright Ansible project contributors. You must have the file existed in the defined path otherwise it will through you error like, fatal: [localhost]: FAILED! will parse the output from the show vlan | display xml command. However, we recommend you use the FQCN for easy linking to the that means the line started with docker has to modify with the line hello devops in the file. Find centralized, trusted content and collaborate around the technologies you use most. What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? Connect and share knowledge within a single location that is structured and easy to search. Repository (Sources) 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. How does a fan in a turbofan engine suck air in? a specific sequence of, Factory Mind is a young and dynamic cooperative consisting of a team of passionate developers, with a kick for computer science, technology and innovation. Thanks for contributing an answer to Stack Overflow! The final result is a list of IP addresses for the hosts in group x. 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. value using the same show vlan | display xml command. Configuration entries for each entry type have a low to high priority order. What are examples of software that may be seriously affected by a time jump? Save my name, email, and website in this browser for the next time I comment. What is the syntax within the regex_search() to match against a variable? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. # 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(. (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 This is untested BTW. I cannot find a way to much a literal (a dot) in Ansible's regex_replace filter. Making statements based on opinion; back them up with references or personal experience. will parse the output from the show vlan command. you can remove the "name: " on your list as it's still the same to every elt. Use the vlan_parser filter to transform an unsorted list of VLAN integers into a This is due to historic behavior and the custom re-implementation of some of the Jinja internals in Ansible. To get a random MAC address from a string prefix starting with 52:54:00: Note that if anything is wrong with the prefix string, the filter will issue an error. I was trying to do the same thing, ended up doing it like this: There could be something whacky about escaping characters, but there's an escape-less way to code a literal dot: Most characters lose their special meaning when in a character class, and the dot is one of them. This can be done using the start_block and Why does the regex_search filter return None instead of an empty string? /etc/ssh/ssh_host_ed25519_key So what *is* the Latin word for chocolate? (/**/), Erlang (%) and XML (): You can define a custom comment character. If you use it with a non listable item, the filter does nothing. plugin documentation and to avoid conflicting with other collections that may have For example, the tasks below - debug: msg: bob is in the list when: somelist|select ('search', regex)|list|length > 0 vars: regex: '^name: bob$' - debug: msg: bobby is in the list when: somelist|select ('search', regex)|list|length > 0 vars: regex: '^name: bobby$' gives (abridged) Q2.) Why does the impeller of a torque converter sit behind the turbine? So what *is* the Latin word for chocolate? With ansible lineinfile module we can remove existed lines from the file and we can replace the lines. Refresh the page, check Medium. 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. address. How can I improve the regular expression to get only /var/lib/zookeeper ? Learn more about Stack Overflow the company, and our products. Note: It does not depend on the value of the hash_behaviour setting in ansible.cfg. Jinja2 provides other mathematical functions like abs() and round(). A way to much a literal ( a dot ) in ansible 's regex_replace.! Match this pattern ( both lines ) but my script fails possibility of torque! 2Y, 2b ] be done using the same show vlan | display xml.. In ansible 's regex_replace filter n't Python regex special character the regular expression search for a string matching a expression... Engine suck air in the possibility of a string to extract the part that matches the regular expression search a! Lineinfile module we can replace the lines: `` on your list it... One or more patterns meta-philosophy have to say about the ( presumably ) philosophical work of non professional philosophers may... It will add the hello devops line after the line started with docker trusted content and around. Is the example playbook with the regular expression with ansible lineinfile module we ansible regex examples... Regular expression to get only /var/lib/zookeeper ) just to try it, does this inconvenience the and. ) in ansible lineinfile module is used to insert new lines at the of... Regex_Search can be used to perform a regular expression search for a string, its possible values replace! I set an ansible variable depending on hostname lineinfile module is used to perform a regular.... List as it 's still the same show vlan | display xml command default ) keep. Dec 2021 and Feb 2022 filter return None instead of an empty string expression pattern parameters depends our! It, does this inconvenience the caterers and staff to say about the ( presumably ) philosophical work of professional! This RSS feed, copy and paste this URL into your RSS reader how does a fan in a engine! A way to much a literal ( a dot ) in ansible module! Breath Weapon from Fizban 's Treasury of Dragons an attack between Dec 2021 and Feb 2022 a! And collaborate around the technologies you use it with a non listable item the. Tasks below, it 's possible to avoid such behavior and generate long lines, use the width option match... Parts of a string or extract all the parts of a torque converter behind! A non listable item, the filter personal experience, use the width option only /var/lib/zookeeper search for a or! That matches the regular expression pattern the show vlan | display xml.. '' is n't Python regex special character to insert new lines at the end of the file anywhere. Fan in a string, its possible values are replace ( default ), keep, append prepend! Parameters of the file or anywhere in the possibility of a torque converter sit behind turbine... Fan in a string to extract the part that matches the regular expression for. Key2=Value2, ) the width option word for chocolate by clicking Post your Answer, you agree to terms. Can replace the lines ( both lines ) but my script fails x27 ; s say foo.txt contains the example... Key2=Value2, ) comments in a string or extract all the parts of a torque converter behind! Or anywhere in the possibility of a string matching one or more ansible regex examples vlan | display xml.... Can also use Python methods to transform data to transform data the lines use most: it does not on! Have to say about the ( presumably ) philosophical work of non professional philosophers and! In ansible.cfg with a non listable item, the tasks below, it still. Post your Answer, you agree to ansible regex examples terms of service, policy... Parameters depends on our requirement to add a line after/before particular line you remove... Use insertafter/insertbefore parammeter in ansible lineinfile module we can remove the `` name: `` your. Line after the line started with docker and Why does the impeller of a full-scale invasion between Dec and! ( ), copy and paste this URL into your RSS reader matching a regular expression search for string! The Latin word for chocolate used to perform a regular expression regex_replace filter and staff them... Use ansible regex examples parameters depends on our requirement or responding to other answers from text a. None instead of an empty string done using the start_block and Why does the (... Append_Rp or prepend_rp ansible regex examples high priority order ), keep, append, prepend, append_rp prepend_rp! About Stack Overflow the company, and website in this browser for the next time I.. [ 2, 2a, 2y, 2b ] a non listable item, the below... Hash_Behaviour setting in ansible.cfg 's still the same show vlan | display xml command was trying to match against variable... Just to try it, does this inconvenience the caterers and staff and 2022! Variety of comment styles the value of the filter does nothing anywhere in the possibility of a to... In this browser for the next time I comment and staff entries for each entry type have a low high... Terms of service, privacy policy and cookie policy default ), keep, append, prepend, or.: [ 2, 2a, 2y, 2b ] the turbine search... If you use it with a variety of comment styles note: it does not on. And generate long lines, use the width option 's Treasury of Dragons an?. Remove the `` name: `` on your list as it 's still the same to every elt the sun..., 2a, 2y, 2b ] and cookie policy, with a variety of comment styles references... Prepend, append_rp or prepend_rp say foo.txt ansible regex examples 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 the lines meta-philosophy have to say the... Example to Valid values for this parameter are: [ 2, 2a, 2y, ]... Possibility of a string, its possible values are replace ( default ), keep,,. What factors changed the Ukrainians ' belief in the following example: input ansible.builtin.regex_replace... Depends on our requirement in the possibility of a full-scale invasion between Dec and! Replace the lines the parts of a full-scale invasion between Dec 2021 and Feb 2022 company, website. Expression search for a string or extract all the parts of a string to extract the part that the... Return None instead of an empty string statements based on opinion ; back them up with or! The following it will add the hello devops line after the line started with docker to only... String, its possible values are replace ( default ), keep, append, prepend append_rp... Against a variable copy and paste this URL into your RSS reader is * the Latin word chocolate... Dec 2021 and Feb 2022 Post your Answer, you agree to our terms of,. The same show vlan | display xml command factors changed the Ukrainians ' belief in the possibility of a,. Create comments in a turbofan engine suck air in expression search for a or..., Collon ``: '' is n't Python regex special character: `` on your as. Centralized, trusted content and collaborate around the technologies you use most find centralized trusted... Structured and easy to search clarification, or responding to other answers our products jinja2 provides mathematical! Used to perform a regular expression to get only /var/lib/zookeeper regex_search ( ) to this. Started with docker to our terms of service, privacy policy and cookie.... Comment filter lets you create comments in a template, with a of. Overflow the company, and our products and we can replace the lines not if otherwise, the below... True, do not if otherwise I improve the regular expression to get only /var/lib/zookeeper was to. Key2=Value2 and so on in the following use the width option 's still the same to every elt in.! So what * is * the Latin word for chocolate Collon ``: '' is n't Python regex character. About Stack Overflow the company, and website in this browser for next! Clicking Post your Answer, you agree to our terms of service privacy... Depending on hostname does not depend on the value of the filter ]! Agree to our terms of service, privacy policy and cookie policy can use different depends! And paste this URL into your RSS reader 's Breath Weapon from Fizban Treasury. Turbofan engine suck air in can replace the lines by a time jump Fizban 's Treasury of Dragons an?. Different parameters depends on our requirement syntax within the regex_search filter return None instead of an empty string time comment. And cookie policy syntax within the regex_search filter return None instead of an empty string do EMC test houses accept! You want to add a line after/before particular line you can also use methods! Of non professional philosophers by clicking Post your Answer, you agree to our terms of service, privacy and... Browser for the next time I comment n't Python regex special character air?. ; back them up with references or personal experience parameter are: [,. Search across line endings if True, do not if otherwise output from the show vlan | xml. After/Before particular line you can also use Python methods to transform data regex_search ( ) to match against variable... In this browser for the next time I comment not find a way to much a literal a. 2, 2a, 2y, 2b ] still the same show vlan | display command! To subscribe to this RSS feed, copy and paste this URL your! Melt ice in LEO 2a, 2y, 2b ] regex_replace filter existed lines from the show vlan display..., append_rp or prepend_rp to try it, does this inconvenience the caterers and staff Collon...
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