Ansible when regex

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Instead it attempts to simplify the complications that surround the world. yaml regexp="auto_bootstrap: false" line="# auto_bootstrap: false"'. shmall',  Ansible is an extra-simple tool/framework/API for doing 'remote things' over SSH. Filters in Ansible are from Jinja2, and are used for transforming data inside a template expression. attributes. It's no longer \1 , it's now \1172 , which is clearly erroneous. To get supported flags look at the man page for chattr on the target system. -- You received this message because you are  To replace text in a string with regex, use the “regex_replace” filter: # convert "ansible" to "able" {{ 'ansible' | regex_replace('^a. Compiling it from source on the target hosts (though not the ideal way to go about things), wasn't a problem at all - and everything went smoothly. html, intro_dynamic_inventory. Even better, when running on Amazon EC2,  14 Nov 2013 For now, just try to read what it says and you may notice that it uses regular expressions (Python flavor), and of course it gives you a headache. exists == False - name: modify sshd_config lineinfile: dest: /etc/ssh/sshd_config state: present backrefs: yes regexp: '{{ item. However I hit a snag escaping special characters with a particular line. html. I'm trying to insert a line into a YAML file: - name: Insert clustername {{ clustername }}. *)$', '\\1') }}. After Jinja templating, this is what actually gets used as the replacement string in the regex module: '\1172. 使い方 サンプルプレイブック以下は変数kb_msu"Windows8. regexp }}" line: "{{ item. It is that at the end of a lookahead or a lookbehind, the regex engine hasn't moved on the string. , foo*:bar* . g. But I want to use regex in filter part, I could not find any documentation. *") - debug:  Network CLI filters; Hashing filters; Combining hashes/dictionaries; Extracting values from containers; Comment Filter; URL Split Filter; Regular Expression Filters; Other Useful Filters; Combination Filters; Debugging Filters. Posted on: Oct 15, 2016 by: Ibrahim Edib K. ini Scylla -u centos -m shell -a 'nodetool refresh keyspace1 standard1'. module_utils. The use of colons is now discouraged (and will eventually be deprecated) because of the conflict with IPv6 addresses, and the  regex in -a "filter=ansible_*". *, and regular expressions: ~(web|db). It will definitely work. Hi all, really need help with this one. *') | list | first }}"  2 Jun 2015 (3 replies) Suppose I've url=http://example. ssh/known_hosts create: yes state: present line: "{{ lookup('pipe', 'ssh-keyscan -t rsa github. org/2/library/re. If you need to insert a line before a pattern, you can use the insertbefore parameter. Attributes the file or directory should have. 2014年10月21日 さて、最近はサーバを構成管理ツールで管理するのが流行っていますが、トライコーンでは Ansible を使っての構成管理を試してみています。 その中でハマったのが shell や command モジュールを使いながら冪等性を保つ方法です。VagrantとAnsibleで開発環境を構築 – テストとハマったこと でも紹介されていますが、これらの  Ansible is an extra-simple tool/framework/API for doing 'remote things' over SSH. md As you can probably see, setting this up just requires reading the documentation and working out the correct regex for each language. It can be used to deploy settings and software to one or more (virtual) machines. I'm taking my first steps with Ansible (1. - name: add a multiline string to the file and delete the string from before. line }}" with_items: - { regexp: '^kernel. com". Look at that first term. Ansible is an extra-simple tool/framework/API for doing 'remote things' over SSH. ^, Start of string. */resources/. For example, find and replace all instances of foo with bar within a file named /etc/app. 18 Jun 2014 Use Ansible feature called lookup . ,?\s?){4}) . After Jinja templating, this is what actually gets used as the replacement string in the regex module: '\1172. はじめにAnsible で 動的に取得した変数値などを、replaceやtemplateモジュール、commandモジュールでのsedなどを利用せずに、Jinja2 filtersで正規表現を扱えないか調べたところregex_replaceが用意されていました。 1. - name: ensure github. 1 Aug 2013 I could not find documentation on this on Ansible doc so I ended up looking for a regex filter on Jinja2 side and ended up here! Could we add that in the doc? I can submit a patch if you tell me where you want to see this appear plus anything that can help me with style (like if you see it as a new section,  13 Dec 2016 It works with the replace task, lineinfile does not provide the multiline python regexp. The first part of the template is saying UPTIME is a variable (or value) we will be extracting from the raw text, and the regex for UPTIME is wrapped in parentheses, which is ((\d+\s\w+. e. It's no longer \1 , it's now \1172 , which is clearly erroneous. example. (added in 2. *") - debug:  Network CLI filters; Hashing filters; Combining hashes/dictionaries; Extracting values from containers; Comment Filter; URL Split Filter; Regular Expression Filters; Other Useful Filters; Combination Filters; Debugging Filters. ansible command is ansible all -m setup -a "fliter=ansible_*". Using a CM-tool ensures that every deployment is done in exactly the same way. *)$', 'a\\1') }} # convert "foobar" to "bar" {{ 'foobar' | regex_replace('^f. regexp='^'. -f NUM, --forks=NUM Level of host/group patterns. You can use search like this: when: name_prefix | search("stage-dbs"). com/users/foo/resources/bar" tasks: - debug: "msg='matched pattern 1'" when: url | match("http://example. A few useful filters are typically added with each new Ansible release. com/users/foo/resources/bar" tasks: - debug: "msg=' matched pattern 1'" when: url | match("http://example. line='Hello, World!' state=present. s. Aug 1, 2013 I could not find documentation on this on Ansible doc so I ended up looking for a regex filter on Jinja2 side and ended up here! Could we add that in the doc? I can submit a patch if you tell me where you want to see this appear plus anything that can help me with style (like if you see it as a new section,  Dec 23, 2015 No need to use regex for pattern searching. I understand, but it also is a great tool for making one line changes in configuration files that are not managed completely by ansible via templates. Is there a way. python. Careful: If you  Sep 4, 2016 +)"/\1/o,outputs/ --regex-terraform=/^([a-z0-9_]+) =/\1/f,tfvars/ --languages=ansible ,python,sh,terraform,make --langdef=markdown --langmap=markdown:. The update task "update xxxx" should inspect the  4 Sep 2016 +)"/\1/o,outputs/ --regex-terraform=/^([a-z0-9_]+) =/\1/f,tfvars/ --languages=ansible,python,sh,terraform,make --langdef=markdown --langmap=markdown:. While it's possible to replicate this with a shell task to execute a command and pipe the output into grep and use careful handling of failed_when to catch grep exit codes, a far better strategy is to use a command task, register the output, and then utilize Ansible provided regex filters in later conditionals. com. ini' insertafter: '\[defaults\]'. Ansible uses patterns like foo* to target managed nodes; one could match multiple patterns by separating them with colons, semicolons, or commas, e. ini Scylla -u centos --sudo -m lineinfile -a 'dest=/etc/scylla/scylla. js from source in a custom location (/opt/node) on an ubuntu host. ssh/known_hosts create: yes state: present line: "{{ lookup('pipe', 'ssh- keyscan -t rsa github. This is possible in Ansible and you can do it specifying a ~ at the begin of the string: ~(ws|db). - name: Change file contents on CentOS and Redhat servers. Let's check out the options! The only required one is path - the file we need to change. To match strings against a substring or a regex, use the “match” or “search” filter: vars: url: "http://example. -l ~REGEX, --limit=~REGEX Further limits hosts with a regex pattern. There are plenty of great open-source tools that help you parse  Jun 2, 2015 (3 replies) Suppose I've url=http://example. 3). com/users/. Here's an example Ansible task that will set the key in a secure way. Dec 13, 2016 It works with the replace task, lineinfile does not provide the multiline python regexp. (?=) Positive lookahead. com". conf. Then, we can use the regexp option to find the target line and line as the value to  Nov 6, 2015 Host patterns. example\. This string should contain the attributes in the same order as the one displayed by lsattr. (?()|), Conditional  14 Apr 2015 This can be done using a generic regular expression so Ansible can understand most forms the parameter is likely to be in. stat. 0. *\. The use of colons is now discouraged (and will eventually be deprecated) because of the conflict with IPv6 addresses, and the  Aug 16, 2015 I'd like to change several FPM parameters using Ansible, you can copy (transfer) the whole configurations from your Ansible task to remote machines via name: Set some kernel parameters lineinfile: dest: /etc/sysctl. yml · Open Evernote Classic (local) Link in MIcrosoft Word 2011 REGEX: find: isset($_GET['something']) replace: array. Any directions on how this can be achieved would help. com or. Sometimes simple patterns are not enough, and you want to leverage the power of Regular Expressions. regexp }}" line: "{{ item. We'll also need to restart php5-fpm and nginx to ensure the change takes effect, so we need to add in two handlers as well, in a new handlers section. 4 dev) and love it so far. 25 Feb 2017 I have escaped the '[' and ']' since they are special regex characters. lineinfile is very effective at that particular task. Uses Python regular expressions; see http://docs. ansible -i my. com is a known host lineinfile: dest: /root/. ansibleでsshdの設定; ansible実行で設定反映; sshdの起動確認 sshd_config_bkup. One way of solving this is to make the  Jan 12, 2017 Ansible is great at capturing and using JSON-formatted data returned by REST API (or any other script or method it can invoke), but unfortunately some of us still have to deal with network devices that cannot even spell structured data or REST . \b, Word boundary. 3\2'. . Instead it attempts to simplify the complications that surround the world 1 Dec 2017 regexp · ubuntu · ansible. So the problem is, when doing a search for some data on some JSON, it returns the data with square 6 Nov 2015 Host patterns. I believe this confusion promptly disappears if one simple point is firmly grasped. 192. -SSLv2 -SSLv3" insertafter="^[ \t]SSLEngine on" with_items: "{{ conf_files. No, you would be better off using 'xargs' or piping the full  We can nowgroup these hosts based on eitherthe hostname or any other Ansible fact. conf regexp: "{{ item. Patterns can include variable substitutions: {{foo}}, wildcards: *. 1-KB3140735-x64. replace: dest: /etc/blah/randomfile regexp: '^(#?ThisValueHere)' replace: 'ThisValueHere no' when: (ansible_distribution == "CentOS") or (ansible_distribution  Jan 10, 2017 Your replacement string looks like this: '\1{{ asterisk_db_host }}\2'. Use nodetool to refresh tables. Jan 23, 2017 pylint: disable=redefined-builtin from ansible. I have version 1. 'INI-file' structure, blocks define groups. Then, we can use the regexp option to find the target line and line as the value to  Pythex is a real-time regular expression editor for Python, a quick way to test your regular expressions. 168. line }}' with_items: - regexp: '^#?\s*Port'  To match strings against a substring or a regex, use the “match” or “search” filter: vars: url: "http://example. Hello,. conf by creating or updating your yml file: - replace: path: /etc/app. Not too bad  7 Oct 2016 Insanely complete Ansible playbook, showing off all the o C# RegEx Valid Mail Check · My web dev docker-compose. shmall',  Of course, Ansible has a module just for that! Search for the "Ansible lineinfile" module. example. *") - debug: "msg='matched pattern 2'" when: url | search("/users/. post-author-pic. To see what RegEx are available, see this page: https://docs. You can chain three more lookaheads after the first, and the regex engine still won't  6 Sep 2016 The Ansible lineinfile module is designed to search a file for a line, and ensure that it is present or absent. (?!) Negative lookahead. Alright, let's see  Regular Expression Assertions. no, None. conf regexp: "{{ item. basic import AnsibleModule # pylint: enable=redefined-builtin from ciscoconfparse import CiscoConfParse def find_sections(**kwargs): """Extract a section from a config Args: lines (list): the list of lines making up the config match (str): the regex to  Jun 18, 2014 Use Ansible feature called lookup . 8. Let's check out the options! The only required one is path - the file we need to change. 3\2'. com') }}" regexp: "^github\\. If you are using  2016年6月28日 0. 1. Inventory files intro_inventory. /demo dest=/tmp/demo - name: update xxxx lineinfile: dest: /tmp/demo regexp: '^(. Since everyone loves RegEx, but hates writing them, having tools to make it easier always helps. -i PATH, --inventory=PATH The PATH to the inventory hosts file, which defaults to /etc/ansible/hosts. replace: dest: /etc/blah/randomfile regexp: '^(#?ThisValueHere)' replace: 'ThisValueHere no' when: (ansible_distribution == "CentOS") or (ansible_distribution  10 Jan 2017 Your replacement string looks like this: '\1{{ asterisk_db_host }}\2'. *)xxxx' line: '\1{{ansible_date_time. This will match all hosts whose inventory name matches the  Ansible uses Python's Regular Expressions to modify files with modules like lineinfile . (?<=) Positive lookbehind. 23 Dec 2015 No need to use regex for pattern searching. *") - debug: "msg='matched pattern 2'" when: url | search("/users/. Ah, ha! Ensure a particular line is in a file, or replace an existing line. 27 Aug 2015 Less than two weeks ago I wrote a post about an Ansible module called ntc_show_command. 16 Aug 2015 I'd like to change several FPM parameters using Ansible, you can copy (transfer) the whole configurations from your Ansible task to remote machines via name: Set some kernel parameters lineinfile: dest: /etc/sysctl. 2 of ansible, but it's giving me this error when I try to use regex with lineinfile: msg: unsupported parameter for module: regex. com') }}" regexp: "^github\\. \Z, End of string, ignores m flag. This doesn't only make your job as a system engineer a whole lot easier, it also  Of course, Ansible has a module just for that! Search for the "Ansible lineinfile" module. com:90/url and now in my ansible task I want to get the url variable by {{ url }} and then do a regex match and fetch oly the hostname i. I had a requirement today where I needed to install node. - name: Ansible lineinfile insert after example lineinfile: dest: /etc/ansible/ansible. Operators can be chained: webservers:dbservers:&staging:!phoenix. Here's an example Ansible task that will set the key in a secure way. e. (?<!) Negative lookbehind. path }} regexp="[  18 Feb 2016 ansible -i my. One way of solving this is to make the  1 Feb 2017 Hmm, if you need to get interface name, try: - debug: msg: "{{ ansible_interfaces | select('match','ens. conf regexp: 'foo' replace: 'bar' backup: yes. 8 Dec 2016 ansibleでsshdの設定をする. *i(. year}}' backrefs: yes state: present. Another  DESCRIPTION. When work has  12 Jan 2017 Ansible is great at capturing and using JSON-formatted data returned by REST API (or any other script or method it can invoke), but unfortunately some of us still have to deal with network devices that cannot even spell structured data or REST. Next, I just  Lookarounds often cause confusion to the regex apprentice. Let's look at two  1 Jun 2015 Ansible is a very powerful configuration management tool. Handlers are perfect for this,  9 Mar 2013 While working with Ansible and files, like configuration files or default files for services, often it's useful to just change one line than copy a template file. -- You received this message because you are  Jun 1, 2015 Ansible is a very powerful configuration management tool. The development documentation shows  1 Mar 2017 Regular Expressions. files }}" - name: Edit SSLCipherSuite lineinfile: dest={{ item. Terrence C. There are plenty of great open-source tools that help you parse  Escaping problem with regular expression and variables, christian studer, 10/18/13 4:11 AM. msu"を  PyRegex is a online regular expression tester to check validity of regular expressions in the Python language regex subset. \B, Non-word boundary. This doesn't only make your job as a system engineer a whole lot easier, it also  21 Sep 2017 replace: path: /path/to/file regexp: 'regular expression for search' replace: 'replace-word' backup: yes. regexp }}' line: '{{ item. Careful: If you  8 Jan 2016 A possible ansible playbook may look as follows: --- - hosts: localhost tasks: - name: create file copy: src=. 17. basic import AnsibleModule # pylint: enable=redefined-builtin from ciscoconfparse import CiscoConfParse def find_sections(**kwargs): """Extract a section from a config Args: lines (list): the list of lines making up the config match (str): the regex to  17 Aug 2017 - 12 min - Uploaded by David BombalIn this video I demonstrate how to use regular expressions with Python network automation 23 Aug 2014 Regular expressions are hard but this post is not going to make them appear harder. lineinfile: dest=/test/test. Next, I just  Aug 23, 2014 Regular expressions are hard but this post is not going to make them appear harder. $, End of string. You can use search like this: when: name_prefix | search("stage-dbs"). Let's edit our example sshd_config file to make the SSH daemon listen on multiple IP addresses. cfg line: 'inventory = /home/fedora/inventory. Ifyou are grouping thehosts basedon the hostname, thenyou can simply use regex inside your hosts field, asfollows: hosts: hdpd* The preceding regex will match all hosts that start with hdpd; these are Hadoop DataNodes in our case. Here's what I'm trying to run: - name: Set ASSET_VERSION to commit hash sudo: true sudo_user:  17 Feb 2016 This can easily be achieved with Ansible's with_items syntax and a little regular expression trickery (if you find yourself in need to add blocks to a file often, take a look at the blockinfile module). regex with lineinfile module giving error, Jim McMahon, 7/6/15 1:34 PM. 10-16-2016. 23 Jan 2017 pylint: disable=redefined-builtin from ansible. *o(. \A, Start of string, ignores m flag. line }}" with_items: - { regexp: '^kernel