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To convert the output of a network device CLI command into structured JSON To subscribe to this RSS feed, copy and paste this URL into your RSS reader. String with substitution (or original if no match). 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. Ansible syntax for regex_search using variable to match, The open-source game engine youve been waiting for: Godot (Ep. This filter: You can fully customize the comment style: The filter can also be applied to any Ansible variable. For example, a variable that is lower in the list will override a variable that is higher up. Copyright Ansible project contributors. Dot product of vector with camera's local positive x-axis? Other hash types will simply ignore this parameter. Also the colon is causing the following error: syntax error - mapping values are not allowed in this context. This describes keyword parameters of the filter. 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. plugin name regex even without specifying the collections: keyword. For example the following: Ansible offers styles for comments in C (//), C block The parameter is only available for blowfish (BCrypt). Does Cast a Spell make you a spellcaster? This can be useful in a roles defaults. 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. Examples Return Value Synopsis Search in a string to extract the part that matches the regular expression. Filters can help you manage missing or undefined variables by providing defaults or making some variables optional. Though it works for one line - Is this ok [y/N]: y. Regex that I have used for both lines is Installed . In this example, Hello is replaced with Goodbye. sorted string list of integers according to IOS-like VLAN list rules. 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? my play looks like: - name: Get version set_fact: version: "{{ show_version.stdout | regex_search('Software Version. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. vegan) just to try it, does this inconvenience the caterers and staff? 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. However, you can make specific variables optional. The code works in Ansible 2.4.3.0 running on Debian 9 (Raspbian "Stretch"). https://docs.python.org/2/library/re.html, Your email address will not be published. How do I access variables of a host using dynamic inventory in a MongoDB database using Ansible playbook? However, we recommend you use the FQCN for easy linking to the folder files older than 1 week and greater than 1kb. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. If you are unsure of the underlying Python type of a variable, you can use the type_debug filter to display it. Jordan's line about intimate parties in The Great Gatsby? Use the k8s_config_resource_name filter to obtain the name of a Kubernetes ConfigMap or Secret, Ansible selectattr filter is to select matching objects from the dictionary by applying a test across all the objects in a dictionary/sequence. The spec file should be valid formatted YAML. the same filter plugin name. Here we mentioned in the regexp parameter as ^devops. in ipaddr filter. Stop by the google group! You should ask this as a question. the same test plugin name. Please don't ask multiple questions in one question, add a separate question for your second part. I can't figure out how to escape the colon. : For more information on supported XPath expressions, see XPath Support. I cannot find a way to much a literal (a dot) in Ansible's regex_replace filter. and input is not ansible.builtin.regex (key1=value1, key2=value2, .). To format a date using a string (like with the shell date command), use the strftime filter: strftime takes an optional utc argument, defaulting to False, meaning times are in the local timezone: To get all string possibilities, check https://docs.python.org/3/library/time.html#time.strftime. Configuration entries for each entry type have a low to high priority order. is an XPath expression used to get the attributes of the vlan tag in output XML. 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. 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. Dot product of vector with camera's local positive x-axis? If you configure Ansible to ignore most undefined variables, you can mark some variables as requiring values with the mandatory filter. To remove the line by using regexp in ansible we should use state parameter as absent. The comment filter lets you create comments in a file from text in a template, with a variety of comment styles. 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. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Valid values for this parameter are: [2, 2a, 2y, 2b]. Matched string or empty string if no match. value using the same show vlan command. You can configure Ansible to allow undefined variables by setting DEFAULT_UNDEFINED_VAR_BEHAVIOR to false. 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. "{{ foo | default(None) | some_filter or omit }}". it will create new file and it will add the line to file. Asking for help, clarification, or responding to other answers. Input This describes the input of the filter, the value before | ansible.builtin.regex_findall. This lets you specify individual subelements to use in a template. plugin documentation and to avoid conflicting with other collections that may have How can I match "anything up until this sequence of characters" in a regular expression? In the following examples i will show you how to use ansible lineinfile module with different parameters like regexpto insert new lines. Is a boolean, default to False. 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. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Match literals with 'regex_replace' Ansible filter, The open-source game engine youve been waiting for: Godot (Ep. How to combine multiple named patterns into one Cases? 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. UPDATE 10/2022: See further explanations/answers in story responses! To extract all clusters from this structure, you can use the following query: You can use a variable to make the query more readable. 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) This describes positional parameters of the filter. This describes the input of the filter, the value before | ansible.builtin.regex_findall. Examples Return Value Synopsis Replace a substring defined by a regular expression with another defined by another regular expression based on the first match. 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. Not the answer you're looking for? What is the syntax within the regex_search() to match against a variable? Last updated on Feb 17, 2023. ansible.builtin.regex_findall(positional1. For example, a registered variable might contain a dictionary when your next task needs a list, or a user prompt might return a string when your playbook needs a boolean value. 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. Communication. These are the values key1=value1, key2=value2 and so on in the following examples: input is ansible.builtin.regex (key1=value1, key2=value2, .) Replace a substring defined by a regular expression with another defined by another regular expression based on the first match. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 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. Use the vlan_parser filter to transform an unsorted list of VLAN integers into a Configuration entries for each entry type have a low to high priority order. Follow the installation instructions to install that collection. These filters have migrated to the ansible.netcommon collection. plugin name Regular expression string that defines the match. Ansible - regular expression search using regex_search. 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. Not all lists use key to designate keys and value to designate values. we should mention backrefs as yes. The same command could be parsed into a hash by using the key and values 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. Jordan's line about intimate parties in The Great Gatsby? For example, Collon ":" isn't Python regex special character. You can create a test, then define one value to use when the test returns true and another when the test returns false (new in version 1.9): In addition, you can define a one value to use on true, one value on false and a third value on null (new in version 2.8): You might need to know, change, or set the data type on a variable. To learn more, see our tips on writing great answers. --- - name: Upgrade NX-OS on switch with pre-checks to load image as required . Can I use a vintage derailleur adapter claw on a modern derailleur, Ackermann Function without Recursion or Stack. Personally I'd use something along the lines of. This means that you can now simply use I wanted to read the value for dataDir using Ansible and set it to a variable. Without that filter before b64encode the wrong value will be encoded. Regular expression string that defines the match. Regexp is used to modify the particular line in the file. Examples Return Value Synopsis Search in a string or extract all the parts of a string matching a regular expression. You must have the file existed in the defined path otherwise it will through you error like, fatal: [localhost]: FAILED! The value of top is the XPath relative to the XML root node. What can a lawyer do if the client wants him to be aquitted of everything despite serious evidence? 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. Ansible selectattr filter is basically an inherited version of Jinja selectattr filter. Ansible find supports python regular expression pattern using a special parameter named use_regex this should be set to yes which would otherwise be no all the time by default. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? The spec file above will return a JSON data structure that is a list of hashes The final result is a list of IP addresses for the hosts in group x. Learn more about Stack Overflow the company, and our products. Learn more about Stack Overflow the company, and our products. These are the values key1=value1, key2=value2 and so on in the following example: input | ansible.builtin.regex_replace(key1=value1, key2=value2, ). 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. Can I use a vintage derailleur adapter claw on a modern derailleur. By default Ansible uses # to start a comment line and adds a blank comment line above and below your comment text. Connect and share knowledge within a single location that is structured and easy to search. will parse the output from the show vlan | display xml command. PTIJ Should we be afraid of Artificial Intelligence? Can non-Muslims ride the Haramain high-speed train in Saudi Arabia? 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. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Two separate "set_fact" stanzas are needed so that "keytype" is set before it is used. Duress at instant speed in response to Counterspell. For example, map from_yaml, create a list of dictionaries, and selectattr. Find centralized, trusted content and collaborate around the technologies you use most. Copyright Ansible project contributors. 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. through it, returning JSON output. ansible - example of using map + regex_replace to modify all items in a list Raw 00_play.yml This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Putting a regex into a variable simplifies the expressions. Does Cast a Spell make you a spellcaster? Vladimir to the rescue as always. 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. These filters help you with common network tasks. Communication. Search across line endings if True, do not if otherwise. Positional parameters This describes positional parameters of the filter. Incomplete \ifodd; all text was ignored after line. (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 So what *is* the Latin word for chocolate? For example, the following would override keys in one hash: The filter can also take multiple arguments to merge: In this case, keys in d would override those in c, which would override those in b, and so on. 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). that means the line started with docker has to modify with the line hello devops 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. Required fields are marked *. into blocks that can be parsed. Let's say foo.txt contains the following. Last updated on Feb 17, 2023. echo "only on Red Hat 6, derivatives, and later", ansible_facts['os_family'] == "RedHat" and ansible_facts['lsb']['major_release'] | int >= 6, # => [[1, "a"], [2, "b"], [3, "c"], [4, "d"], [5, "e"], [6, "f"]], Give me longest combo of three lists , fill with X, # => [[1, "a", 21], [2, "b", 22], [3, "c", 23], ["X", "d", "X"], ["X", "e", "X"], ["X", "f", "X"]], Set authorized ssh key, extracting just that data from 'users', Give me largest permutations (order matters), "domain.server[?cluster=='cluster1'].port", Display all ports from cluster1 as a string, 'domain.server[?cluster==`cluster1`].port', 'domain.server[?cluster==''cluster1''].port', Display all server ports and names from cluster1. Returns True if there is a match, False otherwise. for details. In line parameter we have to add the line which is going to add in the file. The Xpath expression is relative to the value of the XPath value contained in top. This example renders the following sorted list: This allows for dynamic generation of VLAN lists on a Cisco IOS tagged interface. Copyright Ansible project contributors. This symbol represents the line starting with, if you want to know more different options you should learn python regexp. directives. 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. 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. 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. 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. 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. This filter has migrated to the community.general collection. Updated on: January 1, 2022 Sarav AK. ", # => "$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
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