Os-collect-config collects data from defined configuration sources and runs a defined hook whenever the metadata has changed. You must define what sources to collect configuration data from in os-collect-config configuration file at /etc/os-collect-config/sources.ini. These sources will be polled and whenever any of them changes, default.command will be run. A file will be written to the cache dir, os_config_files.json, which will be a json list of the file paths to the current copy of each metadata source. This list will also be set as a colon separated list in the environment variable OS_CONFIG_FILES for the command that is run.