Rework immucore (#246)

pkg/schema/schema.go

@@ -0,0 +1,30 @@
+package schema
+
+import "github.com/deniswernert/go-fstab"
+
+type Layout struct {
+	Overlay  Overlay
+	OEMLabel string
+	//https://github.com/kairos-io/packages/blob/94aa3bef3d1330cb6c6905ae164f5004b6a58b8c/packages/system/dracut/immutable-rootfs/30cos-immutable-rootfs/cos-generator.sh#L71
+	Mounts []string
+}
+
+type Overlay struct {
+	// /run/overlay
+	Base string
+	// https://github.com/kairos-io/packages/blob/94aa3bef3d1330cb6c6905ae164f5004b6a58b8c/packages/system/dracut/immutable-rootfs/30cos-immutable-rootfs/cos-generator.sh#L22
+	BackingBase string
+}
+
+type LsblkOutput struct {
+	Blockdevices []struct {
+		Name     string      `json:"name,omitempty"`
+		Parttype interface{} `json:"parttype,omitempty"`
+		Children []struct {
+			Name     string `json:"name,omitempty"`
+			Parttype string `json:"parttype,omitempty"`
+		} `json:"children,omitempty"`
+	} `json:"blockdevices,omitempty"`
+}
+
+type FsTabs []*fstab.Mount