testnet-ops/nitro-bridge-setup/README.md
Prathamesh Musale 23f3a4c8ed Add instructions to run Ansible playbooks on remote machines (#5)
Part of [Automate testnet nitro deployments using Ansible](https://www.notion.so/Automate-testnet-nitro-deployments-using-Ansible-0d15579430204b8daba9a8aa31e07568)

Co-authored-by: Adw8 <adwaitgharpure@gmail.com>
Reviewed-on: #5
Co-authored-by: Prathamesh Musale <prathamesh@noreply.git.vdb.to>
Co-committed-by: Prathamesh Musale <prathamesh@noreply.git.vdb.to>
2024-09-09 13:37:41 +00:00

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# nitro-bridge-setup
## Setup Ansible
To get started, follow the [installation](../README.md#installation) guide to setup ansible on your machine
## Setup
The following commands have to be executed in the [`nitro-bridge-setup`](./) directory:
- Copy the `bridge-vars.example.yml` vars file:
```bash
cp bridge-vars.example.yml bridge-vars.yml
```
- Edit [`bridge-vars.yml`](./bridge-vars.yml) with the required values:
```yaml
# L1 WS endpoint
nitro_l1_chain_url: ""
# L2 WS endpoint
nitro_l2_chain_url: ""
# Private key for the bridge's nitro address
nitro_sc_pk: ""
# Private key for a funded account on L1
# This account should have tokens for funding Nitro channels
nitro_chain_pk: ""
# L2 RPC endpoint
optimism_url: ""
# Private key for a funded account on L2 to use for contracts deployment on L2
# Use the same account for L1 and L2 deployments
optimism_deployer_pk: ""
# Custom L2 token to be deployed
token_name: "LaconicNetworkToken"
token_symbol: "LNT"
initial_token_supply: "129600"
# Addresses of the deployed nitro contracts
na_address: ""
vpa_address: ""
ca_address: ""
# Address of deployed custom L1 token
l1_asset_address: ""
```
## Run Nitro Bridge
### On Local Host
- To setup and run nitro bridge locally, execute the `run-nitro-bridge.yml` Ansible playbook:
```bash
LANG=en_US.utf8 ansible-playbook run-nitro-bridge.yml --extra-vars='{ "target_host": "localhost"}' --user $USER -kK
```
NOTE: By default, deployments are created in an `out` directory. To change this location, update the `nitro_directory` variable in the [setup-vars.yml](./setup-vars.yml) file
- For skipping container build, set `"skip_container_build" : true` in the `--extra-vars` parameter:
```bash
LANG=en_US.utf8 ansible-playbook run-nitro-bridge.yml --extra-vars='{"target_host" : "localhost", "skip_container_build": true}' --user $USER -kK
```
### On Remote Host
To run the playbook on a remote host:
- Create a new `hosts.ini` file:
```bash
cp ../hosts.example.ini hosts.ini
```
- Edit the [`hosts.ini`](./hosts.ini) file to run the playbook on a remote machine:
```ini
[<deployment_host>]
<host_name> ansible_host=<target_ip> ansible_user=<ssh_user> ansible_ssh_common_args='-o ForwardAgent=yes'
```
- Replace `<deployment_host>` with `nitro_host`
- Replace `<host_name>` with the alias of your choice
- Replace `<target_ip>` with the IP address or hostname of the target machine
- Replace `<ssh_user>` with the SSH username (e.g., dev, ubuntu)
- Verify that you are able to connect to the host using the following command
```bash
ansible all -m ping -i hosts.ini -k
# Expected output:
# <host_name> | SUCCESS => {
# "ansible_facts": {
# "discovered_interpreter_python": "/usr/bin/python3.10"
# },
# "changed": false,
# "ping": "pong"
# }
```
- Execute the `run-nitro-bridge.yml` Ansible playbook for remote deployment:
```bash
LANG=en_US.utf8 ansible-playbook -i hosts.ini run-nitro-bridge.yml --extra-vars='{ "target_host": "nitro_host"}' --user $USER -kK
```
- For skipping container build, run with `"skip_container_build" : true` in the `--extra-vars` parameter:
```bash
LANG=en_US.utf8 ansible-playbook -i hosts.ini run-nitro-bridge.yml --extra-vars='{ "target_host": "nitro_host", "skip_container_build": true }' --user $USER -kK
```
## Check Deployment Status
- Run the following command in the directory where the bridge-deployment is created:
- Check logs for deployments:
```bash
# Check the bridge deployment logs, ensure that the node is running
laconic-so deployment --dir bridge-deployment logs nitro-bridge -f
```
## Get Contract Addresses
- Run the following commands in the directory where the deployments are created:
- Get addresses of L2 nitro contracts:
```bash
laconic-so deployment --dir bridge-deployment exec nitro-bridge "cat /app/deployment/nitro-addresses.json"
```