474 lines
14 KiB
Markdown
474 lines
14 KiB
Markdown
# testnet-nitro-node
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## Prerequisites
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* Local:
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* Clone the `cerc-io/testnet-ops` repository:
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```bash
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git clone git@git.vdb.to:cerc-io/testnet-ops.git
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```
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* Ansible: see [installation](https://git.vdb.to/cerc-io/testnet-ops#installation)
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* On deployment machine:
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* laconic-so: see [installation](https://git.vdb.to/cerc-io/testnet-ops/src/branch/main/stack-orchestrator-setup/README.md#setup-stack-orchestrator)
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## Setup
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* Move to `nitro-nodes-setup` :
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```bash
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cd testnet-ops/nitro-nodes-setup
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```
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* Fetch the required Nitro node config:
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```bash
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wget -O nitro-vars.yml https://git.vdb.to/cerc-io/testnet-laconicd-stack/raw/branch/main/ops/stage2/nitro-node-config.yml
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# Expected variables in the fetched config file:
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# nitro_chain_url: ""
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# na_address: ""
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# ca_address: ""
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# vpa_address: ""
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# asset_address: ""
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# nitro_chain_start_block: 0
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# bridge_nitro_address: ""
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# nitro_l1_bridge_multiaddr: ""
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# nitro_l2_bridge_multiaddr: ""
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```
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* TODO: Get L1 tokens on your address
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* Edit `nitro-vars.yml` and add the following variables:
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```bash
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# Private key for your Nitro account (same as the one used in stage0 onboarding)
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# Export the key from Laconic wallet (https://wallet.laconic.com)
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nitro_sc_pk: ""
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# Private key for a funded account on L1
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# This account should have L1 tokens for funding your Nitro channels
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nitro_chain_pk: ""
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# Multiaddr with publically accessible IP address / DNS for your L1 nitro node
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# Use port 3007
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# Example: "/ip4/192.168.x.y/tcp/3007"
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# Example: "/dns4/example.com/tcp/3007"
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nitro_l1_ext_multiaddr: ""
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# Multiaddr with publically accessible IP address / DNS for your L2 nitro node
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# Use port 3009
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# Example: "/ip4/192.168.x.y/tcp/3009"
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# Example: "/dns4/example.com/tcp/3009"
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nitro_l2_ext_multiaddr: ""
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```
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* Update the target dir in `setup-vars.yml`:
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```bash
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# Set path to desired deployments dir (under your user)
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DEPLOYMENTS_DIR=<path-to-deployments-dir>
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sed -i "s|^nitro_directory:.*|nitro_directory: $DEPLOYMENTS_DIR/nitro-node|" setup-vars.yml
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# Will create deployments at $DEPLOYMENTS_DIR/nitro-node/l1-nitro-deployment and $DEPLOYMENTS_DIR/nitro-node/l2-nitro-deployment
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```
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## Run Nitro Nodes
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Nitro nodes can be run using Ansible either locally or on a remote machine; follow corresponding steps for your setup
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### On Local Host
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* Setup and run a Nitro node (L1+L2) by executing the `run-nitro-nodes.yml` Ansible playbook:
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```bash
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LANG=en_US.utf8 ansible-playbook -i localhost, --connection=local run-nitro-nodes.yml --extra-vars='{ "target_host": "localhost"}' --user $USER
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```
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### On Remote Host
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* In `testnet-ops/nitro-nodes-setup`, create a new `hosts.ini` file:
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```bash
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cp ../hosts.example.ini hosts.ini
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```
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* Edit the [`hosts.ini`](./hosts.ini) file to run the playbook on a remote machine:
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```ini
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[<deployment_host>]
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<host_name> ansible_host=<target_ip> ansible_user=<ssh_user> ansible_ssh_common_args='-o ForwardAgent=yes'
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```
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* Replace `<deployment_host>` with `nitro_host`
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* Replace `<host_name>` with the alias of your choice
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* Replace `<target_ip>` with the IP address or hostname of the target machine
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* Replace `<ssh_user>` with the SSH username (e.g., dev, ubuntu)
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* Verify that you are able to connect to the host using the following command
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```bash
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ansible all -m ping -i hosts.ini -k
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# If using password based authentication, enter the ssh password on prompt; otherwise, leave it blank
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# Expected output:
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# <host_name> | SUCCESS => {
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# "ansible_facts": {
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# "discovered_interpreter_python": "/usr/bin/python3.10"
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# },
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# "changed": false,
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# "ping": "pong"
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# }
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```
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* Execute the `run-nitro-nodes.yml` Ansible playbook for remote deployment:
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```bash
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LANG=en_US.utf8 ansible-playbook -i hosts.ini run-nitro-nodes.yml --extra-vars='{ "target_host": "nitro_host"}' --user $USER -kK
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# If using password based authentication, enter the ssh password on prompt; otherwise, leave it blank
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# Enter the sudo password as "BECOME password" on prompt
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```
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### Check Deployment Status
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* Run the following commands on deployment machine:
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```bash
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DEPLOYMENTS_DIR=<path-to-deployments-dir>
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cd $DEPLOYMENTS_DIR/nitro-node
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# Check the logs, ensure that the nodes are running
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laconic-so deployment --dir l1-nitro-deployment logs nitro-node -f
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laconic-so deployment --dir l2-nitro-deployment logs nitro-node -f
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# Let L1 node sync up with the chain
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# Expected logs after sync:
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# nitro-node-1 | 2:04PM INF Initializing Http RPC transport...
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# nitro-node-1 | 2:04PM INF Completed RPC server initialization url=127.0.0.1:4005/api/v1
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```
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* Get your Nitro node's info:
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```bash
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laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-node-info -p 4005 -h nitro-node"
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# Expected output:
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# {
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# "SCAddress": "0xd0eA8b27591b1D070cCcD4D30b8D408fe794FDfc",
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# "MessageServicePeerId": "16Uiu2HAmSHRjoxveaPmJipzmdq69U8zme8BMnFjSBPferj1E5XAd"
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# }
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# SCAddress -> nitro address, MessageServicePeerId -> libp2p peer id
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```
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## Create Channels
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Create a ledger channel with the bridge on L1 which is mirrored on L2
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* Run the following commands on deployment machine
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* Set required variables:
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```bash
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DEPLOYMENTS_DIR=<path-to-deployments-dir>
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cd $DEPLOYMENTS_DIR/nitro-node
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export BRIDGE_NITRO_ADDRESS=$(yq eval '.bridge_nitro_address' nitro-node-config.yml)
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export ASSET_ADDRESS=$(yq eval '.asset_address' nitro-node-config.yml)
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```
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* Check that check that you have no existing channels on L1 or L2:
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```bash
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laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
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laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
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# Expected output:
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# []
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```
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* Create a ledger channel between your L1 Nitro node and Bridge with custom asset:
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```bash
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# Set amount to ledger
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LEDGER_AMOUNT=1000000
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laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client direct-fund $BRIDGE_NITRO_ADDRESS --assetAddress $ASSET_ADDRESS --alphaAmount $LEDGER_AMOUNT --betaAmount $LEDGER_AMOUNT -p 4005 -h nitro-node"
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# Follow your L1 Nitro node logs for progress
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# Expected Output:
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# Objective started DirectFunding-0x161d289a50222caa781db215bb82a3ede4f557217742245525b8e8cbff04ec21
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# Channel Open 0x161d289a50222caa781db215bb82a3ede4f557217742245525b8e8cbff04ec21
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# Set the resulting ledger channel id in a variable
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export LEDGER_CHANNEL_ID=
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```
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* Check the [Troubleshooting](#troubleshooting) section if command to create a ledger channel fails or gets stuck
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* Once direct-fund objective is complete, the bridge will create a mirrored channel on L2
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* Check L2 Nitro node's logs to see that a bridged-fund objective completed:
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```bash
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laconic-so deployment --dir l2-nitro-deployment logs nitro-node -f --tail 30
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# Expected Output:
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# nitro-node-1 | 5:01AM INF INFO Objective cranked address=0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce objective-id=bridgedfunding-0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179 waiting-for=WaitingForNothing
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# nitro-node-1 | 5:01AM INF INFO Objective is complete & returned to API address=0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce objective-id=bridgedfunding-0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179
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```
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* Check status of L1 ledger channel with the bridge using channel id:
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```bash
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laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-ledger-channel $LEDGER_CHANNEL_ID -p 4005 -h nitro-node"
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# Expected output:
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# {
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# ID: '0x161d289a50222caa781db215bb82a3ede4f557217742245525b8e8cbff04ec21',
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# Status: 'Open',
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# Balance: {
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# AssetAddress: '<l1-asset-address>',
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# Me: '<your-nitro-address>',
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# Them: '<bridge-nitro-address>',
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# MyBalance: <ledger-amount>n,
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# TheirBalance: <ledger-amount>n
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# },
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# ChannelMode: 'Open'
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# }
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```
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* Check status of the mirrored channel on L2:
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```bash
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laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
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# Expected output:
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# [
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# {
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# "ID": "0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179",
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# "Status": "Open",
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# "Balance": {
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# "AssetAddress": "<l2-asset-address>",
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# "Me": "<your-nitro-address>",
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# "Them": "<bridge-nitro-address>",
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# "MyBalance": <ledger-amount>n,
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# "TheirBalance": <ledger-amount>n
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# },
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# "ChannelMode": "Open"
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# }
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# ]
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```
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## Payments On L2 Channel
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Perform payments using a virtual payment channel created with another Nitro node over the mirrored L2 channel with bridge as an intermediary
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* Run the following commands on deployment machine
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* Switch to the `nitro-node` directory:
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```bash
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DEPLOYMENTS_DIR=<path-to-deployments-dir>
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cd $DEPLOYMENTS_DIR/nitro-node
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```
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* Check status of the mirrored channel on L2:
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```bash
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laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
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# Expected output:
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# [
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# {
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# "ID": "0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179",
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# "Status": "Open",
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# "Balance": {
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# "AssetAddress": "<l2-asset-address>",
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# "Me": "<your-nitro-address>",
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# "Them": "<bridge-nitro-address>",
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# "MyBalance": Xn,
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# "TheirBalance": Yn
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# },
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# "ChannelMode": "Open"
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# }
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# ]
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```
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* Set required variables:
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```bash
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export BRIDGE_NITRO_ADDRESS=$(yq eval '.bridge_nitro_address' nitro-node-config.yml)
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# Counterparty to create the payment channel with
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export COUNTER_PARTY_ADDRESS=<counterparty-nitro-address>
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# Mirrored channel on L2
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export L2_CHANNEL_ID=<l2-channel-id>
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# Amount to create the payment channel with
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export PAYMENT_CHANNEL_AMOUNT=10000
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```
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* Check for existing payment channels for the L2 channel:
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```bash
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laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-payment-channels-by-ledger $L2_CHANNEL_ID -p 4005 -h nitro-node"
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```
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* Create a virtual payment channel:
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```bash
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laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client virtual-fund $COUNTER_PARTY_ADDRESS $BRIDGE_NITRO_ADDRESS --amount $PAYMENT_CHANNEL_AMOUNT -p 4005 -h nitro-node"
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# Follow your L2 Nitro node logs for progress
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# Expected Output:
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# Objective started VirtualFund-0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
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# Channel Open 0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
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# Set the resulting payment channel id in a variable
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PAYMENT_CHANNEL_ID=<payment-channel-id>
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```
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Multiple virtual payment channels can be created at once
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* Check the payment channel's status:
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```bash
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laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-payment-channel $PAYMENT_CHANNEL_ID -p 4005 -h nitro-node"
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# Expected output:
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# {
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# ID: '0xb29aeb32c9495a793ebf7bd116232075d1e7bfe89fc82281c7d498e3ffd3e3bf',
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# Status: 'Open',
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# Balance: {
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# AssetAddress: '0x0000000000000000000000000000000000000000',
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# Payee: '<your-nitro-address>',
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# Payer: '<counterparty-nitro-address>',
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# PaidSoFar: 0n,
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# RemainingFunds: <payment-channel-amount>n
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# }
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# }
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```
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* Send payments using the virtual payment channel:
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```bash
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export PAY_AMOUNT=200
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laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client pay $PAYMENT_CHANNEL_ID $PAY_AMOUNT -p 4005 -h nitro-node"
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# Expected output
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# {
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# Amount: <pay-amount>,
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# Channel: '<payment-channel-id>'
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# }
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# This can be done multiple times until the payment channel balance is exhausted
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```
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* Check payment channel's status again to view updated channel state
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* Close the payment channel to settle on the L2 mirrored channel:
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```bash
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laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client virtual-defund $PAYMENT_CHANNEL_ID -p 4005 -h nitro-node"
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# Expected output:
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# Objective started VirtualDefund-0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
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# Channel complete 0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
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```
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* Check L2 mirrored channel's status after the virtual payment channel is closed:
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```bash
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laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
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# Expected output:
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# [
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# {
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# "ID": "0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179",
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# "Status": "Open",
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# "Balance": {
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# "AssetAddress": "<l2-asset-address>",
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# "Me": "<your-nitro-address>",
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# "Them": "<bridge-nitro-address>",
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# "MyBalance": <your-updated-balance>n,
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# "TheirBalance": <bridge-updated-balance>n
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# },
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# "ChannelMode": "Open"
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# }
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# ]
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```
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Your balance on the L2 channel should be reduced by total payments done on the virtual payment channel
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## Clean up
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* Switch to deployments dir:
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```bash
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cd $DEPLOYMENTS_DIR/nitro-node
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```
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* Stop all Nitro services running in the background:
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```bash
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laconic-so deployment --dir l1-nitro-deployment stop
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laconic-so deployment --dir l2-nitro-deployment stop
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```
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* To stop all services and also delete data:
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```bash
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laconic-so deployment --dir l1-nitro-deployment stop --delete-volumes
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laconic-so deployment --dir l2-nitro-deployment stop --delete-volumes
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# Remove deployment directories (deployments will have to be recreated for a re-run)
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sudo rm -r l1-nitro-deployment
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sudo rm -r l2-nitro-deployment
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```
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## Troubleshooting
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* Stop (`Ctrl+C`) the direct-fund command if it is stuck
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* Restart the L1 Nitro node:
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* Stop the deployment:
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```bash
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cd $DEPLOYMENTS_DIR/nitro-node
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laconic-so deployment --dir l1-nitro-deployment stop
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```
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* Reset the node's durable store:
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```bash
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sudo rm -rf l1-nitro-deployment/data/nitro_node_data
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mkdir l1-nitro-deployment/data/nitro_node_data
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```
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* Restart the deployment:
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```bash
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laconic-so deployment --dir l1-nitro-deployment start
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```
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* Retry the ledger channel creation command
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