Configuring the /etc/sudoers file in NixOS for Ansible management can be done by setting up the security.sudo module in the Nix configuration.
The sudoers rules in NixOS are managed under the security.sudo module using the extraRules property.
To apply NixOS sudo configurations, you can use commands like nixos-rebuild test for temporary changes and nixos-rebuild switch for permanent changes.
Examples provided in the article include making a user a member of the 'wheel' group, allowing commands without a password, and setting specific sudo configurations.
NixOS requires paths to commands from the Nix store, not standard Linux paths, for configuring sudoers rules.
Features like excluding specific commands, applying aliases, preventing command spawning, and setting custom configurations are also explained.
By referencing the man page and practicing writing rules, configuring sudo in NixOS becomes easier.
A specific example provided in the article shows how to create a user 'ansible' and allow sudo access without a password.