Ansible lineinfile regex. In most cases, you can use the short module name lineinfile even without specifying the collections: keyword. cat tab. *)$' before: '^Workstation(. 3, option 'dest', 'destfile' or 'name' was used instead of 'path'-name: Insert path without converting \r\n win_lineinfile: path: c:\file. yml - include: fstab-opts. ansible - replace a string or word in existing line without replace all the line. I have tried to use the lineinfile but can't seem to get it to return. Jan 19, 2018 · I'm using the Ansible Lineinfile module to remove the line. Changing the regex pattern to the below, will change only the line you actually intend to. conf regex: '^name=' state: absent-win Feb 21, 2014 · - name: test lineinfile lineinfile: backup=yes state=present dest=/etc/foo. cfg. All help is appreciated, thank you! Ansible regex with assert operator. For lower versions you can use regex_search('^' + pattern | string). This leaves you with a couple of options to tackle this problem instead. How to have each line in . Ansible "lineinfile": add new line (with PATH=) or append to existing line (with PATH=) 0. host=127. Example 1: Ensuring a line is present. . 0 /path/to/file: helloworld Ansible snippets: - lineinfile: dest: /path/to/file regexp='^(hello)world$' line='\1030' attempt 2 - lineinfile: dest: /path/to/file regexp='^(hello)world$' line="\1030" Oct 28, 2018 · Ansible breaks with an exception, tried it with Ansible 2. How to do Multiple Search and Replace in lineinfile Jan 3, 2021 · If you have Ansible installed and want to test on a local playbook, download my files here: key-value. Updated playbook to remove escapes for the regexes, added sample input file and updated output Ansible lineinfile module not adding all the required lines to the file Hot Network Questions Where will the ants position themselves so that they are precisely twice as far from vinegar as they are from peanut butter? May 2, 2024 · - name: Add string between groups of regex in nginx. : - name: remove xconsole from rsyslog. Feb 22, 2023 · For testing, I have tried a couple of them by escaping the special characters in regular expressions and couple of them left as is. name: Change Sudo Timeout become: yes lineinfile: path: /etc/sudoers regexp: ^Defaults env_reset line: Defaults env_reset,timestamp_timeout=60 Jun 21, 2014 · I was able to do that by using \n in the line parameter. conf backrefs: yes regexp: '(log_format[^;]*?)(;)' line: '\1 my_string \2' Despite trying different regex patterns and configurations, the file remains unchanged, and Ansible simply returns ok without making any changes. I am trying to match certain patterns in file using regexp and i have another task to add a new line to the EOF. Ansible regex escape dollar character. 5 days ago · Note. shell: grep '. How to escape 1 or more whitespaces in a regex in the Jul 19, 2014 · The key is the > behind lineinfile: But let's keep in mind that this question is from 2014 and you just don't do this string soup anymore in modern ansible. Correct patterns should be. Replacing a line of a file using Dec 14, 2023 · If the line is in the file, Ansible will remove it. lineinfile – Manage lines in text files Note This module is part of ansible-core and included in all Ansible installations. regex_replace for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter plugin name. Before putting it to use, you should make sure that the task you want to accomplish cannot be done more This module ensures a particular line is in a file, or replace an existing line using a back-referenced regular expression. yml regexp: "Unix" line: "Linux" firstmatch: yes state: present edit: changed module to fqcn. Manage (add, remove, change) individual settings in an INI-style file without having to manage the file as a whole with, say, template or assemble. I am setting up rsyslog and want to make sure a few lines are in the /etc/rs Dec 27, 2023 · An Introduction to Ansible Lineinfile. 1 it suggests adding “Options None” to the element. 1 and over write the previous value. replacing lines in files Nov 4, 2020 · a # this is the end line of the original file # BEGIN ANSIBLE MANAGED BLOCK line 1 line 2 # END ANSIBLE MANAGED BLOCK I would like to add a blank line (newline) before the marker "# BEGIN ANSIBLE MANAGED BLOCK" for visual effect. 1. If the line is not in the file, Ansible will not do anything. Currently, i am doing it with 2 tasks, one to add new line and other for the regexp loop Jan 4, 2020 · Ansible, attempting to get specific regex pattern to work with lineinfile module 1 Ansible modules copy/template errors for Linux 5 hosts using python26 ,python binding libselinux-python needed Nov 24, 2016 · I am new to ansible. Apr 30, 2021 · This module ensures a particular line is in a file, or replace an existing line using a back-referenced regular expression. Are multiline matches supported in Oct 14, 2016 · ansible lineinfile regex multiline. May 20, 2024 · I am trying to write an extra line into my /etc/ansible/hosts file using an Ansible playbook. g. In most cases, you can use the short plugin name regex_escape. " lineinfile: dest=/etc/apache2/a But many people will land here looking for a way to do it with a regex. 184. yml – local playbook for doing regex lineinfile replacement; test-ansible-lineinfile. stdout_lines/array match a variable. Aug 28, 2023 · The lineinfile module combines the simplicity of plain text lines with the power and flexibility of regular expressions to allow for both simple and complex manipulations. As a result, just run the Ansible code to make sure the defined state of the system has been set. Is there a simple way to replace the line starting with option domain-name-servers in /etc/dhcp/interface-br0. Alternatively you could use two lineinfile tasks and leverage the insertafter property. txt now contains the following: bar However, if I run ansible-playbook again, I get the following: bar bar Aug 5, 2022 · Normally, one would want to use a manner of matching these strings that do not use them as regular expressions but as literal strings. after: '^Scheduled(. regex_escape for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter plugin name. Filters let you transform JSON data into YAML data, split a URL to extract the hostname, get the SHA1 hash of a string, add or multiply integers, and much more. Dec 4, 2018 · The regex pattern in the question will match any number of word clear_me in the file. Example 3: Remove a line from a file with regexp parameter - name: Remove a particular line from a file ansible. txt regexp='^#bar' line='bar' When I first run ansible-playbook, the line gets uncommented and the /etc/foo. regex='^ +clear_me$' or, you could also use the below regex and replace. Even after many years of use, you will find new ways to use this Ansible module. Ansible Regex Expression. Though I think my question was answered as I tested, one must use single Oct 10, 2014 · Commenting out multiple lines should work with a standard loop [1] like this: - name: "Allow /srv folder accessed by default. Config would look like this: <Directory /> Options None Other Directives Etc </Directory> In example 1 below, it functions as I anticipate how adding a line with lineinfile would go. lineinfile is doing its work that is adding whatever is given in line and line is identified by your regexp. It’s typically a module where you’ll find fresh ways of using it, even after years of Oct 9, 2022 · how can one possibly match value of a variable through regex parameter in lineinfile module? - name: emptyline before search lineinfile: dest: ~/file insertbefore: '^{{ search_text }}$' line: '' I tried above with both single/double quotes around, it doesn't seem to work Aug 13, 2019 · ansible lineinfile regex multiline. Sep 15, 2016 · from this documentation, it was tried to do a regex-replace in Ansible. With ansible lineinfile module we can remove existed lines from the file and we can replace the lines. sh – script that executes local playbook Synopsis ¶. I cannot use a template as other teams might perform changes on it, I only want to modify what I need. Apr 25, 2019 · You can do this without a shell output, with 2 lineinfiles modules. conf regex: '^name=' line: 'name=JohnDoe'-win_lineinfile: path: C:\Temp\example. You can also use conditions to match the line before modifying or removing using the regular expressions. Option 1 using shell (simpler): - ansible. Aug 12, 2022 · Put prefix and regex into variables and test the first 5 characters. The module supports regular expressions, which can be used to match and replace text in a file. yml point=/backup opts=noatime Jan 14, 2020 · I have a file which has one of more entries like seen in the grep command below: grep SSLFile /tmp/httpd. A: Neither before nor after pattern matches any line in the file. Apr 23, 2021 · Synopsis ¶. com, lineinfile documentation Oct 13, 2017 · To do this in Ansible, you just need to add the become flag. conf regex: ^(hosts:. That way you don't have bust your head with regex expressions. 以下の様なシェルスクリプトを以下のようにAnsibleで置換処理をしたい。 Origin. On control 5. What is the easiest way to do it? Preferably within the task, but any idea is welcome. - name: find lineinfile: dest: /etc/passwd regexp: [user] state: present line: "user" Dec 28, 2022 · ansible lineinfile regex multiline. 8. builtin. For example, Ansible lineinfile duplication using insertafter. Oct 13, 2020 · I am starting to look into using ansible for maintaining a set of servers. Aug 6, 2024 · When running the below playbook for the first tile, all is OK. bak – sample yml file; test-lineinfile. This module is part of ansible-core and included in all Ansible installations. yml point=/tmp opts=noexec,nodev,nosuid,noatime - include: fstab-opts. There are two approaches that you can use : Using check_mode with failed_when. Sadly I can not find an regex that matches my problem. Apr 18, 2017 · On top of the mistake in trying to match security with system, you don't need to escape the double quotes in either of the arguments or the dollar sign in the replace argument (otherwise the backslash will be inserted into the file): Sep 9, 2015 · I have a file, It has a line DocumentRoot path/to/folder I have to remove this line, What should be the regular expression. Something like this: Jan 19, 2022 · ansible lineinfile regex multiline. ansible - replace a string or word in Jul 21, 2016 · No, lineinfile search expression line by line, see module's source code. 4 on Red Hat Enterprise Linux 9. Ansible. Is it possible to do this in a loop? How can I use ansible to modify / insert the lines that satisfy the regex? UPDATE. 1. conf with more IPs? option domain-name-servers 10. The next control suggests adding the same May 27, 2022 · # Before Ansible 2. insertafter or insertbefore: Specifies where to insert the line if it’s not found. bak – sample config file; test-lineinfile. * bar baz' /some/file changed_when: false Option 2 using ansible itself (for the purists, and Windows users): Oct 11, 2023 · I think lineinfile is idempotent, but as your first run has removed the line you’re using as anchor in the regex, it has no other alternative than to append to the end of the file (or the beginning) depending on the insert* parameter. You can reuse and modify the matched line using the back reference parameter. sh – script that executes local playbook . Are multiline matches supported in lineinfile? 3. Apr 26, 2021 · If regular expressions are passed to both regexp and insertbefore, Ensure SELinux is set to enforcing mode ansible. This module is part of ansible-base and included in all Ansible installations. 3. One of Ansible‘s killer features is its extensive library of modules. REFERENCES. In Ansible 2. However, the serial number of the zone(s) is manually modified by the end users and a lot of Oct 24, 2023 · the problem is with the regex,. Influence when to use atomic operation to prevent data corruption or inconsistent reads from the target filesystem object. Jun 19, 2022 · The Ansible lineinfile module. lineinfile module (see the relevant Ansible documentation). Jun 29, 2014 · Instead of lineinfile module, consider using ini_file module. 116. Maybe there are modul Mar 17, 2017 · I have a task in an Ansible playbook that is supposed to iterate with a list of users and do a lineinfile to enable access to a postgress database: - name: Postgres localhost access lineinfile: 5 days ago · Note. 7 guess it's rather a synthax than a binary issue. conf regex: '^name=' state: absent-win We would like to show you a description here but the site won’t allow us. file insertbefore: BOF line: "{{ HEADER }}" Mar 19, 2018 · ansible lineinfile regex multiline. Ansible uses Python re module. How can I add new line after some regexp? 4. Ansible version. 5 days ago · This module ensures a particular line is in a file, or replace an existing line using a back-referenced regular expression. Nov 29, 2018 · I'm creating an ansible playbook to perform changes on /etc/login. It allows you to control fleets of servers declaratively using playbooks written in YAML. Ansible regular expression to match a string and extract the line. @Bohemian Ansible regex interprets character sets as something like [abc] - if I have, for example, an ini file stanza, normally Ansible would interpret that as a character set like [stanzadef]. So no matter what value your setting already has, it will be overridden by your new line. Synopsis ¶. - name: Editing text multiple lines with loop and variables from list lineinfile: path: /usr/local/bin/xxx/test regexp: "{{ item. In most cases, you can use the short plugin name regex_search. 11 and later, one does this by using search_string in place of regexp with the ansible. How to replace line in file using ansible lineinfile playbook exampe with with_items loop. By default this module uses atomic operations to prevent data corruption or inconsistent reads from the target filesystem objects, but sometimes systems are configured or just broken in ways that prevent this. In my case, I was adding AuthorizedKeysCommand and AuthorizedKeysCommandUser to sshd_config, with the following command: Feb 9, 2018 · ansible lineinfile regex multiline. lineinfile: path: /etc/somefile. I've validated the regex Sep 22, 2020 · # Before Ansible 2. user@server:/home$ ansible --version ansible 2. In your example you're searching for splash: - name: check if splash is configured in the boot command lineinfile: backup: true path: /etc/default/grub regexp: '^GRUB_CMDLINE_LINUX=". file today localhost the example playbook--- - hosts: localhost become: false gather_facts: false vars: HEADER: "Date\tHost_Name" tasks: - name: Write header to file lineinfile: path: tab. As far as I know, you can use that expression in a version greater than 2. I hope you found this blog post helpful. conf replace: dest: /etc/rsyslog. Ansible lineine file with regex is adding new line when it shouldn't. Feb 11, 2022 · Ansible lineinfile multiple lines, In this post we are going to see how to replace multiple matching lines and use multiple regular expressions or regex in ansible lineinfile. The default of auto will cause the module to auto-detect the encoding of the source file and ensure that the modified file is written with the same encoding. Jun 30, 2024 · regexp: A regular expression to match the line that needs to be replaced. 0. Note. Feb 24, 2024 · The Ansible lineinfile module. lineinfile: path: Landed here looking for an answer, wound up rolling my own for my use case: main. Ansible lineinfile - modify a line. The problem I'm bumping into is how to have a regular expression that is flexible enough to have some spaces in the middle of the string. Jan 31, 2020 · A: The idempotency of Ansible modules is the core paradigma. regex_search for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same filter plugin name. *) line: \1 libvirt_guest backrefs: true become: true I want to be able to run this task over and over and never get libvirt_guest to appear on the line more than once. Ansible regular expression to match Apr 15, 2022 · ansible lineinfile regex multiline. Use the i for case-insensitive matching:. This is primarily useful when you want to change a single line in a file only. In the following examples i will show you how to use ansible lineinfile module with different parameters like regexpto insert new lines. Dec 20, 2016 · Ansible’s lineinfile module is used to add, change or remove a single line in a file. 13. Apr 11, 2024 · Working on creating a playbook to enforce CIS Benchmarks for Apache 2. I have ran into a difficulty with lineinfile. 0. lineinfile: path: /etc/selinux/config Apr 30, 2021 · Synopsis ¶. Instead the ideal solution would look like this, which is much more readable and does not require to escape all the quotes etc: Jul 11, 2020 · I have an Ansible playbook where I need to change the Server Name in one line and an Specific IP address in another line, as in this line there are a bunch of IP address separated by a comma. Dec 15, 2022 · You can also use the tabulator \t in your variables as in your print example. line }}" loop: #with_item: or loop: - { regexp: '^host May 27, 2022 · Synopsis ¶. lineinfile: path: /etc/config/{{ ansible_hostname }}_host/application. (?-i). Dec 20, 2021 · I would like to add some lines in a file using ansible lineinfile module. I am unfamiliar with the lineinfile tool, but if you can use the "replace" tool used in the link above then you can use the following Python regex to match as you need: Oct 13, 2015 · Ansible's lineinfile module does precisely just that, it deals with single lines in files and has no support for multiple lines. You can use inline modifiers, such as (?ism) in your pattern. 18. This filter plugin is part of ansible-core and included in all Ansible installations. Dec 6, 2021 · To solve the second part you could use the lineinfile module like this: - name: Ansible replace string example ansible. Despite that, we recommend you use the FQCN for easy linking to the module documentation and to avoid conflicting with other collections that may have the Nov 13, 2020 · ansible lineinfile regex multiline. 4. The regex pattern means, match a line starting the any number of space and has clear_me. But as soon as you re-run it after fome changes in the playbook, it will generage additional result lines on changed lines. ansible. In this respect, the Ansible code should be viewed rather a definition of a state than a procedure. I want to escape the character set so Ansible reads it as literal brackets. defs. 5 days ago · Specifies the encoding of the source text file to operate on (and thus what the output encoding will be). lineinfile: path: nginx. conf Output: SSLFile /web/certs/mycert7. Here is the blockinfile documentation. ansible lineinfile module to replace a single line with Jul 20, 2016 · I am using Ansible to set some variables on a file using the lineinfile module. crt I wish to grab the filename 2nd colum lineinfile モジュールは、Ansibleにおけるテキストファイルの行管理のためのツールです。このモジュールを使うことで、ファイル内の特定の行を追加、変更、または削除することができます。 May 27, 2022 · Synopsis ¶. We use a playbook and some templates without any issue. How to escape 1 or more whitespaces in a regex in the lineinfile module of Ansible? 1. conf regexp: '^Remove this line from the file' state: absent 5 days ago · Note. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. By combining the simplicity of a plain text line with the power of regular expressions, the lineinfile module makes it possible to do both simple and complex manipulations of plain text files. Replacing a line of a file using Ansible. If you need to remove/replace text, use replace module – it use multiline regex, e. *splash' state: absent check_mode: true register: grub_cmdline_check changed_when: false - name: insert splash if missing lineinfile: backrefs Apr 21, 2015 · Surrounding all the lineinfile arguments in double quotes (and suitably escaping everything within) I can't use the Ansible database modules I can't use templates, the scripts create and populate a number of tables, and can change between versions of the product - keeping templates up to date would be too much overhead. txt line: c:\return\new-win_lineinfile: path: C:\Temp\example. Ansible lineinfile module is helpful when you want to add, remove, modify a single line in a file. conf ansible. Ansible is a hugely popular open source automation tool used by Linux system administrators worldwide. Nov 4, 2022 · - name: Enable libvirt_guest dns via nss ansible. – Aug 2, 2019 · You can use lineinfile to replace the line you're targeting with a comment, then use the insertafter parameter of blockinfile to add your lines after it. Mar 16, 2015 · Ansible will be able to provision your new servers, and configure them as well. 6. The lineinfile module can be used to manage files in your Ansible playbooks. Just comment out the lines to allow. This module ensures a particular line is in a file, or replace an existing line using a back-referenced regular expression. Have been trying for so long :/ Want also to get the quotes after OPTIONS= to be checked in the regexp (should be OPTIONS=' any content ') Synopsis ¶. regexp: "(?i)^[# \t]*usedns " Inline modifiers apply to the part of the regular experssion to the right of the modifier, and can be disabled with a -e. In the second excution the line that matcht with the regex does not exist because it was replace in the first execution, so linefile does not found any match for that regex and it ends adding it to the end of the file Ansibleを利用していると、replace,lineinfileなどでエスケープ処理をするタイミングがあると思います。その時に便利な方法です。 やりたいこと. The possibilities of using lineinfile are virtually endless. yml. Here is my /etc/ansible/hosts file (example): al ansible. ansible lineinfile regex multiline. Jan 3, 2021 · If you have Ansible installed and want to test on a local playbook, download my files here: my. 2. 5 and 2. zshrc line: "\n# Oct 10, 2018 · I have to use ansible to manage a few DNS zones. For example the playbook If regular expressions are passed to both regexp and insertafter, Ensure SELinux is set to enforcing mode ansible. In most cases, you can use the short plugin name regex_replace. regex ansible lineinfile subsection. This can be done on the server using cat /etc/passwd | grep username, but I want Ansible to stop if the user is not there. That's how you have configured it. 5. However, we recommend you use the FQCN for easy linking to the module documentation and to avoid conflicting with other collections that may Using filters to manipulate data . Its just that in your playbook where you used lineinfile module, you have specified ansible to always have a line couchbase. For a test file. *)$' But these patterns don't work either probably because of the open issues Replace module before/after still broken #47917. Apr 30, 2021 · Synopsis ¶. ansible parse text string from stdout. Let's look at some practical examples to understand how lineinfile can be used in different scenarios. I want to check is a user has access to a server. Nov 18, 2018 · According to this link, lineinfile scans the file and applies the regex one line at a time, meaning you cannot use a regex that looks through the whole file. --- - name: Custom prompt output lineinfile: path: ~/. 1,10 Dec 27, 2018 · The only way that I find to respect regex line break \n is concatenating everything in one line with double quote. lineinfile: path: /etc/nsswitch. conf # ensure regex is lazy! regexp: daemon[\S\s]*?xconsole replace: "# removed by ansible" Mar 7, 2019 · Depends on the ansible's version you're using. regexp }}" line: "{{ item. ? The lineinfile module can be used to insert, delete, or replace lines of text in a file. It is specially useful if the file can be validated, and adding a single line generates an invalid file. wxfyewciwexdqqokrbtjxynmesgrsdhunkaqrntvrvbvlrzqrgv