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Testnet ansible files + Config

This repository is a minimal set of playbooks and inventories required to set up the merge devnets consisting of execution and consensus nodes.

General information

  • General folder structure: All testnet relevant configs are under the testnet names. Generic config variables are set under <name>-testnet/inventory/group_vars/all.yaml. Client specific variables are set under e.g <name>-testnet/inventory/group_vars/eth2client_xxxxxx.yaml. The client specific variables also contains the commands used to start the docker image with.
  • All the config files, genesis.ssz and other variables needed for the testnet are placed under <name>-testnet/custom_config_data.

Instructions to join testnet

  1. Clone this repository
  2. Ensure docker and docker-compose is installed: docker-compose --version and docker --version
  3. Change directories with cd consensus-deployment-ansible/scripts/quick-run/<testnet-type>
  4. Create the required directories for persistent data with mkdir -p execution_data beacon_data
  5. Find your IP address(public IP) and add it to the <testnet-name>.vars file file located in consensus-deployment-ansible/scripts/quick-run/, this is just to ensure easy peering
    5.1 curl ifconfig.me or visit https://whatismyipaddress.com
    5.2 Replace IP in config file with your own IP address: https://i.imgur.com/xnNqN6h.png
  6. Run your chosen execution engine, e.g: docker-compose --env-file <testnet-name>.vars -f docker-compose.geth.yml up -d
  7. Run your chosen consensus engine, e.g: docker-compose --env-file <testnet-name>.vars -f docker-compose.lighthouse.yml up -d
  8. Check your logs to confirm that they are up and syncing, e.g docker logs lighthouse_beacon -f --tail=20
  9. To stop the clients, run docker-compose -f <insert file name you used earlier here> down

Alternative Instructions to join the Kintsugi testnet

Instructions for running ansible playbooks (Only works if you have access)

  1. Clone this repository
  2. Ensure ansible is installed
  3. Make changes in the required variable, e.g: Change the pithos-testnet/inventory/group_vars/eth1client_ethereumjs.yaml with the new docker image or the eth1_start_args for commands to run the container with
  4. The update_execution_beacon_and_validator.yml will stop the execution, beacon and validator containers and restart them with the new configurations specified as variables. Please use the limit=eth1/2_xxxx flag to limit the playbook execution to just update the nodes you have access to (otherwise it won't change the config on the others, but will show a lot of errors). Run this playbook with: ansible-playbook -i pithos-testnet/inventory/inventory.ini playbooks/update_execution_beacon_and_validator.yml --limit=eth1client_ethereumjs
  5. If you just want to update an execution node without touching the other docker containers use the tasks, e.g to restart execution node with the new parameters use,
ansible-playbook -i pithos-testnet/inventory/inventory.ini playbooks/tasks/stop_execution_node.yml --limit=eth1client_ethereumjs
ansible-playbook -i pithos-testnet/inventory/inventory.ini playbooks/tasks/start_execution_node.yml --limit=eth1client_ethereumjs

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