ethereum

Ethereum (geth and prysm) on Docker

Pre-Requisites

Check if docker is installed:

make check_docker

Create the shared secret:

openssl rand -hex 32 | tr -d "\n" > "jwt.hex"    # or: make jwt.hex

Start the Containers

Start the ethereum execution client (geth) and the consensus client (prysm):

docker-compose up -d --build # or: make up

Monitor the Initial Block Download

Geth

View the current sync status:

curl -s -X POST -H 'Content-Type: application/json'  --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":51}' http://127.0.0.1:8545

To view the current block:

curl -s -X POST -H 'Content-Type: application/json'  --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":51}' http://127.0.0.1:8545 | jq -r '.result.currentBlock' | tr -d '\n' |  xargs -0 printf "%d"

View the node's latest synced block:

curl -s -X POST -H 'Content-Type: application/json'  --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":51}' http://127.0.0.1:8545 | jq -r '.result.currentBlock'

To view the timestamp of the returned block number (or use ["latest", false] ):

curl -s -H "Content-type: application/json" -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x25d0bf", false],"id":1}' localhost:8545 | jq -r '.result.timestamp' | tr -d '\n' |  xargs -0 printf "%d"

We can view how many seconds is our node out of sync, by subtracting the current date in epoch with the timestamp of the node's current block:

current_ts=$(date +%s)
block_ts=$(curl -s -H "Content-type: application/json" -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x25d0bf", false],"id":1}' localhost:8545 | jq -r '.result.timestamp' | tr -d '\n' |  xargs -0 printf "%d")

echo $((current_ts - block_ts))

Prysm

curl -s http://localhost:3500/eth/v1/node/syncing | jq -r '.'

Post Initial Sync

When the sync has been completed, consider removing "--snapshot=false" from geth/Dockerfile.

Monitoring

Monitoring with Grafana and Prometheus is available in the _extras directory:

cd _extras
docker-compose -f docker-compose-monitoring.yaml up -d
# docker compose -f docker-compose-monitoring.yaml up -d
cd ..

Grafana will be exposed on port 3000 and prometheus on port 9090

Tear Down

Stop the containers:

make down

ruanbekker / ethereum