Gadget.yaml fields

The available fields of the gadget.yaml file are defined in snapd/gadget/gadget.go.

A description is provided in the Gadget.yaml section of the Gadget snaps specification.

Here is a list the relevant part of the field hierarchy as of Snapd 2.67:

-volumes,omitempty (map[string]*Volume)
 |-<Key> (string)
 | <Value> (*Volume)
 | |-schema (string) enum:emmc,gpt,mbr
 | |-bootloader (string) enum:android-boot,grub,lk,piboot
 | |-id (string)
 | |-structure ([]VolumeStructure)
 | | |-name (string)
 | | |-type (string)
 | | |-filesystem (string) enum:ext4,vfat,vfat-16,vat-32
 | | |-filesystem-label (string)
 | | |-min-size (Size)
 | | |-size (Size)
 | | |-offset (*Offset)
 | | |-offset-write (*RelativeOffset)
 | | | |-relative-to (string)
 | | | |-offset (Offset)
 | | |-role (string) enum:system-boot,system-data,system-seed,system-seed-null,system-save
 | | |-id (string)
 | | |-content ([]VolumeContent)
 | | | |-source (string)
 | | | |-tar