Pharos Testnet: Rebuild Node with Preserved Node Info

This guide helps you rebuild your Pharos Testnet node while preserving your existing validator identity (node info). This is useful when resetting the database but retaining validator keys and configuration.

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1️⃣ Stop and Backup the Existing Node

docker stop pharos-testnet
mv /data/testnet /data/testnet_bak
docker rm pharos-testnet

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2️⃣ Start a Fresh Node Container

docker run -d --name pharos-testnet \\
  -v /data/testnet:/data \\
  -p 18100:18100 -p 18200:18200 -p 19000:19000 \\
  public.ecr.aws/k2g7b7g1/pharos/testnet:63b85b6b

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3️⃣ ⏳ Wait for Initial Sync (~3 minutes)

Do not run docker stop or docker-compose down during this step.

You can check sync progress using:

curl 127.0.0.1:18100/ \\
  -X POST \\
  -H "Content-Type: application/json" \\
  --data '{"method":"eth_blockNumber","params":[],"id":1,"jsonrpc":"2.0"}'

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4️⃣ Stop the Node and Restore Node Identity

docker stop pharos-testnet

Replace new config with the backup node info:

rm -rf /data/testnet/pharos-node/domain/light/data/
rm -rf /data/testnet/pharos-node/domain/light/certs/
rm -rf /data/testnet/resources/

mv /data/testnet_bak/pharos-node/domain/light/data/ /data/testnet/pharos-node/domain/light/data/
mv /data/testnet_bak/pharos-node/domain/light/certs/ /data/testnet/pharos-node/domain/light/certs/
mv /data/testnet_bak/resources/ /data/testnet/resources/

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5️⃣ Restart and Finalize

docker start pharos-testnet

Wait ~3 minutes again for sync to resume. You can check status using:

curl 127.0.0.1:18100/ \\
  -X POST \\
  -H "Content-Type: application/json" \\
  --data '{"method":"eth_blockNumber","params":[],"id":1,"jsonrpc":"2.0"}'

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6️⃣ Clean Up Backup

rm -rf /data/testnet_bak