fix(fota): use upgrade instead of update

This replaces all instances which deal with FOTA to use
upgrade instead of update (where possible).

These terms are often used interchangeably but their meaning
is different: upgrades improve capabilities, updates changes
values (like a counter in a variable).

azuredeploy.json

@@ -395,7 +395,7 @@
       }
     },
     {
-      "name": "[concat(parameters('appName'), 'fota','/default/updates')]",
+      "name": "[concat(parameters('appName'), 'fota','/default/upgrades')]",
       "type": "Microsoft.Storage/storageAccounts/blobServices/containers",
       "apiVersion": "2019-06-01",
       "properties": {

cli/iot/fota.ts

@@ -3,18 +3,18 @@
  * @see https://docs.microsoft.com/en-us/azure/iot-hub/tutorial-firmware-update
  */
 export enum Status {
-	// There is no pending firmware update. currentFwVersion should match fwVersion from desired properties.
+	// There is no pending firmware upgrade. currentFwVersion should match fwVersion from desired properties.
 	CURRENT = 'current',
-	// Firmware update image is downloading.
+	// Firmware upgrade image is downloading.
 	DOWNLOADING = 'downloading',
 	// Verifying image file checksum and any other validations.
 	VERIFYING = 'verifying',
-	// Update to the new image file is in progress.
+	// Upgrade to the new image file is in progress.
 	APPLYING = 'applying',
-	// Device is rebooting as part of update process.
+	// Device is rebooting as part of upgrade process.
 	REBOOTING = 'rebooting',
-	// An error occurred during the update process. Additional details should be specified in fwUpdateSubstatus.
+	// An error occurred during the upgrade process. Additional details should be specified in fwUpdateSubstatus.
 	ERROR = 'error',
-	// Update rolled back to the previous version due to an error.
+	// Upgrade rolled back to the previous version due to an error.
 	ROLLEDBACK = 'rolledback',
 }

storeDeviceUpdate/function.json → storeDeviceUpgrade/function.json

@@ -14,5 +14,5 @@
       "name": "res"
     }
   ],
-  "scriptFile": "../dist/storeDeviceUpdate/storeDeviceUpdate.js"
+  "scriptFile": "../dist/storeDeviceUpgrade/storeDeviceUpgrade.js"
 }

storeDeviceUpdate/storeDeviceUpdate.ts → storeDeviceUpgrade/storeDeviceUpgrade.ts

@@ -12,7 +12,7 @@ const { fotaStorageAccountName, fotaStorageAccessKey } = fromEnv({
 	fotaStorageAccountName: 'FOTA_STORAGE_ACCOUNT_NAME',
 	fotaStorageAccessKey: 'FOTA_STORAGE_ACCESS_KEY',
 })(process.env)
-const fotaStorageContainer = 'updates'
+const fotaStorageContainer = 'upgrades'
 
 const sharedKeyCredential = new StorageSharedKeyCredential(
 	fotaStorageAccountName,
@@ -26,7 +26,7 @@ const containerClient = blobServiceClient.getContainerClient(
 	fotaStorageContainer,
 )
 
-const storeDeviceUpdate: AzureFunction = async (
+const storeDeviceUpgrade: AzureFunction = async (
 	context: Context,
 	req: HttpRequest,
 ): Promise<void> => {
@@ -58,4 +58,4 @@ const storeDeviceUpdate: AzureFunction = async (
 	}
 }
 
-export default storeDeviceUpdate
+export default storeDeviceUpgrade