config: Add developmentMode to schema

Add a `developmentMode` configuration variable to the schema. Do not expose
this on the device target state until local key-based authentication is
sorted.

Relates-to: https://jel.ly.fish/e9525e9e-aa74-478c-b931-52951c679f78
Change-type: patch
Signed-off-by: Alex Gonzalez <alexg@balena.io>

src/config/schema-type.ts

@@ -170,6 +170,10 @@ export const schemaTypes = {
 		type: PermissiveBoolean,
 		default: true,
 	},
+	developmentMode: {
+		type: PermissiveBoolean,
+		default: false,
+	},
 
 	// Function schema types
 	// The type should be the value that the promise resolves

src/config/schema.ts

@@ -79,6 +79,11 @@ export const schema = {
 		mutable: false,
 		removeIfNull: false,
 	},
+	developmentMode: {
+		source: 'config.json',
+		mutable: true,
+		removeIfNull: false,
+	},
 
 	name: {
 		source: 'db',