README.md

Hono Migration Tool

Application migrates registries, devices, credentials and configs from Google's iot core to Hono.

Authentication

There are 2 methods to authenticate with the application:

1. Running application on Google Cloud.

   If you’re running in a Google Virtual Machine Environment (Compute Engine, App Engine, Cloud Run, Cloud Functions), authentication should “just work”.

2. Using Service Account json key.

   If you’re running your application elsewhere, you should download a service account JSON keyfile and point to it using an environment variable:

   $ export GOOGLE_APPLICATION_CREDENTIALS="/path/to/keyfile.json"

   or use the --key argument to pass the key path to the service account.

   Account should have the roles:

   1. Cloud IoT Core Service Agent
   2. Cloud IoT Viewer
   3. Cloud Trace Agent
   4. IAP-secured Web App User (for the project to which the devices should be migrated to)
   5. Pub/Sub Editor
   6. Service Controller

Running the application

To run the application, use the output/hono_migration_tool.exe file.

EXE file was created with Pylancher.

Line Args

Line Args	Mandatory	Description
-p, --project	Yes	Google Cloud Project ID (migration source)
-k, --key	Yes	Service Account Json Key path
-u, --api	Yes	Hono device registry api url (migration target), example https://my_hono_api/v1
-a, --audience	Yes	Target audience (OAuth 2.0 Client), example 837927849228-js9djh3li9shfut7hfbcjjapsjf8d86s.apps.googleusercontent.com
-t, --tenant	Yes	The Hono tenant ID
-reg, --registry	Yes	The Google IoT Core registry to migrate
-r, --region	No	Google Cloud Region (migration source). Valid regions are: {asia-east1,europe-west1,us-central1} Default is europe-west1
--migrate_gateways	No	Boolean flag indicating whether to migrate gateways or not

Running the application examples

EXE file:

hono_migration_tool.exe
--project my-project  
--api https://my_hono_api/v1 
--region europe-west1 
--tenant test-1
--registry hono-registry-1
--audience 837927849228-js9djh3li9shfut7hfbcjjapsjf8d86s.apps.googleusercontent.com  --key .\hono-cloud-endpoint-manager.json

Python file:

python.exe app.py 
--project my-project
--api https://my_hono_api/v1 
--region europe-west1 
--tenant test-1
--registry hono-registry-1
--audience 837927849228-js9djh3li9shfut7hfbcjjapsjf8d86s.apps.googleusercontent.com  --key .\hono-cloud-endpoint-manager.json

Gateways migration

Gateways from IoT Core will be migrated as devices to Hono. To migrate gateways args flag --migrate_gateways should be set.

example:

python.exe app.py 
--project my-project 
--api https://my_hono_api/v1
--region europe-west1 
--audience 837927849228-js9djh3li9shfut7hfbcjjapsjf8d86s.apps.googleusercontent.com  --key .\hono-cloud-endpoint-manager.json
--migrate_gateways