Container environment variables are name=value pairs that provide useful information into containers running in a {{<glossary_tooltiptext="pod"term_id="pod">}}
Container environment variables provide information that is required by the running containerized applications along with information about important resources to the {{<glossary_tooltiptext="containers"term_id="container">}}. For example, file system details, information about the container itself, and other cluster resources such as service endpoints.