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Deploy RPC with Ansible

System requirement

  • Linux(x86_64)
  • docker
  • Ethereum node with full history
  • Ansible 9 and Python 3.12

Andromeda

Recommened hardware

  1. AWS c5.2xlarge with ipv4 network
  2. 500Gb ebs gp3 with 200 throughput
  3. open 30303 tcp/udp for p2p connnections

Steps

  1. update hosts.ini file, add your remote ip and eth mainnet rpc endpoint there
  2. install docker and docker-compose by ansible-playbook playbooks/docker.yaml
  3. spin up your andromeda rpc by ansible-playbook playbooks/andromeda.yaml
  4. install docker-autoheal by ansible-playbook playbooks/autoheal.yaml

snapshots

We provided public aws ebs snapshot for you if you need them.

l2geth

snap-0cffd87f09b9a723d

l1dtl

snap-0eab2d4b73661f9a4

You can use the snapshots on aws us-east-2 region, and copy them to another region you are using.

Sepolia

Recommened hardware

  1. AWS c5.xlarge with ipv4 network
  2. 50Gb free disk
  3. open 30303 tcp/udp for p2p connnections

Steps

  1. update hosts.ini file, add your remote ip and eth sepolia rpc endpoint there
  2. install docker and docker-compose by ansible-playbook playbooks/docker.yaml
  3. spin up your sepolia rpc by ansible-playbook playbooks/sepolia.yaml
  4. install docker-autoheal by ansible-playbook playbooks/autoheal.yaml

Snapshot

We provided public aws ebs snapshot for you if you need them.

l2geth

snap-07ed6398665bf62da

l1dtl

snap-0019089531bfd8990

You can use the snapshots on aws us-east-1 region, and copy them to another region you are using.

FAQ

  1. How to enable finalized param in the eth_getBlockByNumber rpc call and so on?

Use DATA_TRANSPORT_LAYER__SYNC_L1_BATCH=true env value in your dtl service instead.

By the way, you have to re-sync the data if you don't use it at first.

  1. l2geth panic: Refund counter below zero

It can happen when you have a new instace without the snapshots.

You can add --cache.noprefetch=true argument to your l2geth service

  1. How to update the default rpc port

if you don't want to use the default 8545 port, you need to update the LOCAL_L2_CLIENT_HTTP env as well.

e.g. if you want to use 8549 instead.

RPC_PORT=8549
LOCAL_L2_CLIENT_HTTP=http://localhost:8549
  1. Synchronisation failed, retrying err="element not found"

It means your l1dtl is syncing, you can just wait for its complete.