regexp

Ansible: regex capture groups with lineinfile to preserve yaml indentation


Categories: Scripting

One of the features of the ‘lineinfile‘ regexp parameter is the ability to use regular expression capture groups in the line output.  That allows you to extract values on a found line when constructing the output line. Specifically, that can mean pulling information such as hostname/port, file path, or preserving the yaml indentation of an … Ansible: regex capture groups with lineinfile to preserve yaml indentation

Ansible: lineinfile with regex to robustly populate key/value pairs in config file


Categories: Scripting

If your Ansible automation includes modifying an existing configuration file (versus managing your own fully templatized version of the config), then you will need to account for variations in that existing file when using ‘lineinfile‘ for key/value pairs. A naive lineinfile replacement will not find commented-out keys and might not even find valid keys that … Ansible: lineinfile with regex to robustly populate key/value pairs in config file