To learn about the properties that are unique to each image type, refer to the top-level properties described in the single-runtime image topic or the primary application properties described in the composable image topic.
Image properties
Image properties
Details about image properties in the Upsun config.yaml file
Note: The properties below are available in both single-runtime image and composable image types.
For most of these properties, the syntax and details are the same for both image types. Differences in meaning and syntax are noted as needed for each property.
Pick a property to jump to its reference:
Last modified on March 12, 2026