Comprehensive Guide for Running IOT Systems -AWS GreenGrass!

Set up AWS Greengrass on a Mac, Windows, or Unix-like system with a consistent region. Use a Raspberry Pi model B with ARMv7, and ensure Python familiarity.

Set up a Raspberry Pi for AWS Greengrass by preparing the OS, enabling network and SSH, updating the kernel, securing the device, and verifying Greengrass dependencies.

Launch an Amazon EC2 instance using the AWS console, configure security groups for SSH and port 443, then harden the instance and prepare it for Greengrass by installing dependencies.

Learn to set up other devices for AWS Greengrass, including preparing Raspberry Pi or Jetson devices, running dependency checks, and configuring kernels and JetPack firmware to enable Greengrass core installation.

Install and configure AWS Greengrass core to deploy lambda functions, enable secure device-to-cloud messaging, and support over-the-air updates, by signing in, creating a group and core, and downloading security resources.

Start AWS Greengrass on the core device by downloading the Greengrass OS and security certificates, transferring and decompressing them, then starting the Greengrass daemon for secure AWS IoT communication.

Learn how to locate and view the Greengrass config json, review key parameters across core versions, and use commands to inspect and verify the Greengrass setup.

Configure and deploy a python lambda function on Greengrass core, package and upload deployment artifacts, and manage versions with aliases while exploring on-demand versus long-running lambdas.

Configure green grass lambda in a blue/green group, set a 5-second timeout, and enable long-lived on-demand operation. Establish MQTT subscriptions for device-to-lambda and lambda-to-cloud messaging on the hello world topic.

Configure AWS Greengrass cloud configurations on the core device, deploy lambda functions and subscriptions, set up device discovery and permissions, and verify by sending hello world messages.

Configure a long-lived lambda in AWS Greengrass by linking an existing lambda to a Greengrass group, setting a 20-second timeout, and deploying a bidirectional cloud-to-Greengrass subscription.

Enable on-demand lambda functions for Greengrass and deploy the updated group. Publish to a topic to trigger a new container per invocation, though containers can be reused.

Create AWS IoT devices in a Greengrass group and configure a hello world publisher and subscriber, then download and manage certificates and the root certificate for secure communication.

Configure subscriptions in AWS Greengrass to enable a hello world publish-subscribe flow between publisher and subscriber devices and deploy to the core, then install AWS IoT device SDK for Python.

Connect the Greengrass core and your computer to the same network, locate the core's IP address and endpoint, and run the discovery script to enable publisher and subscriber communication.

Configure greengrass devices by creating a G.G. switch and a G.G. traffic light, manage their local shadows and subscriptions, and deploy the updated group to Greengrass core.

Test communications with the switch and traffic light devices via Greengrass discovery, monitor local shadow updates, and deploy updated cloud shadow configurations while using core logs for troubleshooting.

Configure IAM roles for Greengrass and deploy a car-aggregator lambda that tracks traffic-light events, counts passing cars, and logs min and max stats to DynamoDB via Greengrass.

Set up and test Greengrass subscriptions to stream traffic light shadow updates to the core aggregator, deploy the group configuration, run commands, and verify DynamoDB records and logs.

Learn how the Greengrass OTA agent handles over-the-air updates for core and OTA software, delivering security fixes, stability improvements, and new features.

Integrate Greengrass with the init system by managing self updates through pre and post update scripts in the scripts directory, ensuring the managed response flag is respected.

Explore reset deployments in AWS Greengrass, including initiating cleanup of cloud and core deployment data, checking deployment status, and safely accessing local resources with Lambda functions.

Configure local resource access on Greengrass core by creating a resource definition and a group definition with lambda access, then grant permissions via the CLI.

Discover how to add a lambda function to a Greengrass group, manage resource definitions with the Greengrass API, and troubleshoot common permission errors.

Configure local resource access using the AWS Greengrass console by creating a deployment package and lambda function, then attach it to a Greengrass group with appropriate lifecycle settings.

Add a local resource to a Greengrass group with read/write access, configure lambda affiliations and two subscriptions for bidirectional AWS IoT communication, deploy, then test local resource access.

Learn how AWS Greengrass enables edge machine learning inference by training models in the cloud and deploying them locally to Greengrass core, where lambda functions run inferences on connected devices.

Discover AWS Greengrass requirements for machine learning, including non-root access and full resource paths, plus precompiled ML libraries such as MXNet for edge devices.

Configure ml inference on AWS Greengrass for a Raspberry Pi, enabling camera input, installing MXNet, and deploying a Greengrass object classification lambda package.

Set up a Greengrass group by adding a lambda-to-aws iot topic subscription, deploy to the core device, enable automatic discovery, and test with hello/world for inference results.

Configure an NVIDIA Jetson TX2 to run this tutorial, add local device resources and lambda access, increase memory to 2000 MB, and use the Greengrass discovery RESTful API.

Explore how AWS Greengrass uses OPC UA to connect to industrial equipment, monitor node changes with lambda adapters, and publish updates to predefined topics with certificate-based authentication and other options.

Learn to configure and deploy AWS Greengrass security features, create and attach Lambda functions to Greengrass groups, manage certificates and policies, and verify message flow from the OPC UA server.

Explain how AWS greengrass uses device certificates and root ca to connect, download membership, and authenticate by thing name; show mqtt messaging via subscription tables between core devices and lambdas.

Explore how AWS IoT Greengrass logs actions, including cloud watch and local file system logging, with configurable log groups, streams, rotation, and levels for system components and user lambdas.

Understand Greengrass logging limitations, including CloudWatch throughput, local buffering, and clock skew handling. Explore troubleshooting for local and cloud logs, relevant file paths, and how Lambda logs appear during outages.

Troubleshoot Greengrass core by inspecting local and CloudWatch logs, including crash, component, and lambda logs, and address local storage fullness and shadow synchronization timeouts.