Running an Ethereum Node

Prerequisite

1. An EC2 Machine with 8vCPU and 24GB RAM
2. Two EBS volumes
   • For Geth 1TB
   • For Nimbus 500Gb
3. Docker and docker-compose should be installed and running
4. Required ports to open

   Geth Ports:
   30303 (TCP and UDP): This is the default port for Ethereum's peer-to-peer communication.
   8545: JSON-RPC HTTP service port.
   8546: WebSocket service port.
   6060: Metrics port used by Prometheus.
   

   Nimbus Ports:
   
   9000 (TCP and UDP): For peer-to-peer communication in Nimbus.
   5052: REST API port.
   8008: Metrics port for Nimbus, also used by Prometheus.
   

   Prometheus ports:
   9090 
   

Step 1: Preparing the infrastructure

1. Attach the EBS volumes to the instance
2. Create a new folder called ethereum-node
3. Format the disks with XFS fs
   • mkfs -t xfs /device/name
4. Create folders for Geth and Nimbus inside /ethereum-node
   • mkdir geth
   • mkdir nimbus
5. Mount the disks onto the above folders
   • mount /dev/nvme... /ethereum-node/geth
   • mount /dev/nvme... /ethereum-node/nimbus

Step 2: Running the node

1. Clone this repo
2. Run the following commands docker-compose up -d (this will create the nimbus and the geth node + will run promethues)
3. To see the logs of geth docker-compose logs -f geth docker-compose logs -f nimbus
4. Attaching to the node geth attach http://<AWS EC2 PUBLIC IP>:8545
5. Prometheus will scrape the data from both geth and nimbus endpoint, you can open prometheus dashboard at <AWS PUBLIC IP>:9090 and see the metrics

Optional Task

1. To get this data into cloudwatch, you can put the http://<AWS PUBLIC IP>:9090 as the data source in cloudwatch custom dashboard
2. You can then query this by going to cloudwatch > metrics > All Metrics > Multi source query