This Ansible playbook deploys a Nomad + Consul cluster into an Ubuntu Server 20.04 machine and runs an Ethereum node in the Ropsten test net as a containerized nomad job (Docker). The ledger data is permanently persisted to a mounted drive.

Preserve the contents of the files and only change the mentioned values.

cd ansible

# Example

[nomad_servers]
10.0.0.1:22

[nomad_clients]
10.0.0.1:22

[all:vars]
ansible_user=myuser
ansible_ssh_user=myuser
ansible_ssh_private_key_file=~/.ssh/id_rsa

# Example

DATA_VOLUME_DEVICE_NAME: sdc
DATA_VOLUME_FILESYSTEM: ext4
DATA_VOLUME_MOUNT_POINT: /data
DATA_VOLUME_DATA_OWNER: myuser

This step can be removed with proper docker auth configuration (TODO).

# Example

DOCKER_HUB_USERNAME: "myuser"
DOCKER_HUB_PASSWORD: "mypass"

ansible-galaxy install -r requirements.yml

ansible-playbook eth-node.yaml

You can access the Nomad UI via:

http://<server_ip>:4646/ui/jobs

• Setup Docker static token authentication on the node to avoid having to specify credentials.
• Setup monitoring (in this config it doesn't make much sense to setup monitoring services on the same machine).
• Implement better health checks for the Ethereum node.