Setup ipld-eth-server communicating with a remote Nitro node (#587)

* Use durable store for in-process Nitro node

* Update setup for external go-nitro node

* Add a separate service for ipld-eth-server with remote Nitro node

* Update repo branches / versions

* Wait for external Nitro node endpoint and update instructions

* Update repo branches

app/data/compose/docker-compose-go-nitro.yml

@@ -11,10 +11,13 @@ services:
         condition: service_completed_successfully
     environment:
       CERC_NITRO_CHAIN_URL: ${CERC_NITRO_CHAIN_URL:-ws://fixturenet-eth-geth-1:8546}
-      CERC_NITRO_PK: ${CERC_NITRO_PK:-2d999770f7b5d49b694080f987b82bbc9fc9ac2b4dcc10b0f8aba7d700f69c6d}
+      CERC_NITRO_PK: ${CERC_NITRO_PK:-f36f6dd450892224ee113899195ef922a4795d41c32cafb386d9aab6e0b7b0c6}
-      CERC_NITRO_CHAIN_PK: ${CERC_NITRO_CHAIN_PK:-570b909da9669b2f35a0b1ac70b8358516d55ae1b5b3710e95e9a94395090597}
+      CERC_NITRO_CHAIN_PK: ${CERC_NITRO_CHAIN_PK:-888814df89c4358d7ddb3fa4b0213e7331239a80e1f013eaa7b2deca2a41a218}
       CERC_NITRO_USE_DURABLE_STORE: ${CERC_NITRO_USE_DURABLE_STORE:-true}
       CERC_NITRO_DURABLE_STORE_FOLDER: ${CERC_NITRO_DURABLE_STORE_FOLDER:-/app/data/nitro-store}
+      CERC_NITRO_MSG_PORT: ${CERC_NITRO_MSG_PORT:-3006}
+      CERC_NITRO_WS_MSG_PORT: ${CERC_NITRO_WS_MSG_PORT:-5006}
+      CERC_NITRO_RPC_PORT: ${CERC_NITRO_RPC_PORT:-4006}
       CERC_NA_ADDRESS: ${CERC_NA_ADDRESS}
       CERC_VPA_ADDRESS: ${CERC_VPA_ADDRESS}
       CERC_CA_ADDRESS: ${CERC_CA_ADDRESS}
@@ -24,25 +27,15 @@ services:
       - nitro_deployment:/app/deployment
       - ../config/go-nitro/run-nitro-node.sh:/app/run-nitro-node.sh
     healthcheck:
-      test: ["CMD", "nc", "-vz", "localhost", "4005"]
+      test: ["CMD", "nc", "-vz", "localhost", "4006"]
-      interval: 10s
+      interval: 30s
       timeout: 5s
       retries: 10
       start_period: 10s
     ports:
-      - "3005"
+      - "3006:3006"
-      - "4005:4005"
+      - "4006:4006"
-      - "5005:5005"
+      - "5006:5006"
-
-  nitro-rpc-client:
-      image: cerc/nitro-rpc-client:local
-      hostname: nitro-rpc-client
-      restart: on-failure
-      depends_on:
-        # Wait for the go-nitro node to start
-        go-nitro:
-          condition: service_healthy
-      command: ["bash", "-c", "tail -f /dev/null"]
 
 volumes:
   go_nitro_data:

app/data/compose/docker-compose-ipld-eth-server-payments.yml

@@ -1,6 +1,6 @@
 version: "3.2"
 services:
-  ipld-eth-server:
+  ipld-eth-server-1:
     restart: unless-stopped
     depends_on:
       ipld-eth-db:
@@ -27,11 +27,12 @@ services:
       PROM_HTTP_PORT: "8090"
       LOG_LEVEL: "debug"
       CERC_REMOTE_DEBUG: ${CERC_REMOTE_DEBUG:-true}
+      NITRO_RUN_NODE_IN_PROCESS: ${CERC_NITRO_RUN_NODE_IN_PROCESS:-true}
       NITRO_PK: ${CERC_NITRO_PK:-2d999770f7b5d49b694080f987b82bbc9fc9ac2b4dcc10b0f8aba7d700f69c6d}
       NITRO_CHAIN_PK: ${CERC_NITRO_CHAIN_PK:-570b909da9669b2f35a0b1ac70b8358516d55ae1b5b3710e95e9a94395090597}
       NITRO_CHAIN_URL: ${CERC_NITRO_CHAIN_URL:-ws://fixturenet-eth-geth-1:8546}
-      NITRO_USE_DURABLE_STORE: ${CERC_NITRO_USE_DURABLE_STORE:-false}
+      NITRO_USE_DURABLE_STORE: ${CERC_NITRO_USE_DURABLE_STORE:-true}
-      NITRO_DURABLE_STORE_FOLDER: ${CERC_NITRO_DURABLE_STORE_FOLDER:-/app/data/nitro-store}
+      NITRO_DURABLE_STORE_FOLDER: ${CERC_NITRO_DURABLE_STORE_FOLDER:-/app/nitro-data/nitro-store}
       CERC_NA_ADDRESS: ${CERC_NA_ADDRESS}
       CERC_VPA_ADDRESS: ${CERC_VPA_ADDRESS}
       CERC_CA_ADDRESS: ${CERC_CA_ADDRESS}
@@ -40,7 +41,7 @@ services:
       - type: bind
         source: ../config/ipld-eth-server/chain.json
         target: /tmp/chain.json
-      - eth_server_nitro_data:/app/data
+      - eth_server_nitro_data:/app/nitro-data
       - nitro_deployment:/app/deployment
       - ../config/ipld-eth-server/entrypoint.sh:/app/entrypoint.sh
     ports:
@@ -48,7 +49,7 @@ services:
       - "8082"
       - "8090"
       - "40000"
-      - "3005"
+      - "3005:3005"
       - "4005:4005"
       - "5005:5005"
     healthcheck:
@@ -58,6 +59,53 @@ services:
       retries: 15
       start_period: 5s
 
+  ipld-eth-server-2:
+    restart: unless-stopped
+    depends_on:
+      ipld-eth-db:
+        condition: service_healthy
+    image: cerc/ipld-eth-server:local
+    environment:
+      SERVER_HTTP_PATH: 0.0.0.0:8081
+      SERVER_GRAPHQL: "true"
+      SERVER_GRAPHQLPATH: 0.0.0.0:8082
+      VDB_COMMAND: "serve"
+      ETH_CHAIN_CONFIG: "/tmp/chain.json"
+      DATABASE_NAME: cerc_testing
+      DATABASE_HOSTNAME: ipld-eth-db
+      DATABASE_PORT: 5432
+      DATABASE_USER: "vdbm"
+      DATABASE_PASSWORD: "password"
+      ETH_CHAIN_ID: 99
+      ETH_FORWARD_ETH_CALLS: "false"
+      ETH_FORWARD_GET_STORAGE_AT: "false"
+      ETH_PROXY_ON_ERROR: "false"
+      METRICS: "true"
+      PROM_HTTP: "true"
+      PROM_HTTP_ADDR: "0.0.0.0"
+      PROM_HTTP_PORT: "8090"
+      LOG_LEVEL: "debug"
+      CERC_REMOTE_DEBUG: ${CERC_REMOTE_DEBUG:-true}
+      NITRO_RUN_NODE_IN_PROCESS: ${CERC_NITRO_RUN_NODE_IN_PROCESS:-false}
+      NITRO_ENDPOINT: ${CERC_NITRO_ENDPOINT:-go-nitro:4006/api/v1}
+    entrypoint: ["bash", "-c", "/app/entrypoint.sh"]
+    volumes:
+      - type: bind
+        source: ../config/ipld-eth-server/chain.json
+        target: /tmp/chain.json
+      - ../config/ipld-eth-server/entrypoint.sh:/app/entrypoint.sh
+    ports:
+      - "8081"
+      - "8082"
+      - "8090"
+      - "40000"
+    healthcheck:
+      test: ["CMD", "nc", "-v", "localhost", "8081"]
+      interval: 20s
+      timeout: 5s
+      retries: 15
+      start_period: 5s
+
 volumes:
   eth_server_nitro_data:
   nitro_deployment:

app/data/compose/docker-compose-ponder.yml

@@ -8,13 +8,13 @@ services:
     working_dir: /app/examples/token-erc20
     environment:
       CERC_PONDER_CHAIN_ID: ${PONDER_CHAIN_ID:-99}
-      CERC_PONDER_RPC_URL_1: ${PONDER_RPC_URL_1:-http://ipld-eth-server:8081}
+      CERC_PONDER_RPC_URL_1: ${PONDER_RPC_URL_1:-http://ipld-eth-server-2:8081}
       CERC_PONDER_NITRO_PK: ${CERC_PONDER_INDEXER_NITRO_PK:-58368d20ff12f17669c06158c21d885897aa56f9be430edc789614bf9851d53f}
       CERC_PONDER_NITRO_CHAIN_PK: ${CERC_PONDER_INDEXER_NITRO_CHAIN_PK:-fb1e9af328c283ca3e2486e7c24d13582b7912057d8b9542ff41503c85bc05c0}
       CERC_PONDER_NITRO_CHAIN_URL: ${CERC_PONDER_NITRO_CHAIN_URL:-http://fixturenet-eth-geth-1:8546}
       CERC_RELAY_MULTIADDR: ${CERC_RELAY_MULTIADDR}
-      CERC_UPSTREAM_NITRO_ADDRESS: ${CERC_UPSTREAM_NITRO_ADDRESS:-0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE}
+      CERC_UPSTREAM_NITRO_ADDRESS: ${CERC_UPSTREAM_NITRO_ADDRESS:-0x660a4bEF3fbC863Fcd8D3CDB39242aE513d7D92e}
-      CERC_UPSTREAM_NITRO_MULTIADDR: ${CERC_UPSTREAM_NITRO_MULTIADDR:-/dns4/ipld-eth-server/tcp/5005/ws/p2p/16Uiu2HAmSjXJqsyBJgcBUU2HQmykxGseafSatbpq5471XmuaUqyv}
+      CERC_UPSTREAM_NITRO_MULTIADDR: ${CERC_UPSTREAM_NITRO_MULTIADDR:-/dns4/go-nitro/tcp/5006/ws/p2p/16Uiu2HAmNUiX7bpCpbo5JdqEebp85ptGU2Vk2AT9E3BykvbwQ3F9}
       CERC_UPSTREAM_NITRO_PAY_AMOUNT: ${CERC_UPSTREAM_NITRO_PAY_AMOUNT:-100}
     command: ["bash", "./ponder-start.sh"]
     volumes:

app/data/compose/docker-compose-watcher-mobymask-v3.yml

@@ -89,7 +89,7 @@ services:
       CERC_PEER_ID: ${CERC_PEER_ID}
       CERC_ENABLE_UPSTREAM_PAYMENTS: ${CERC_ENABLE_UPSTREAM_PAYMENTS}
       CERC_UPSTREAM_NITRO_ADDRESS: ${CERC_UPSTREAM_NITRO_ADDRESS:-0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE}
-      CERC_UPSTREAM_NITRO_MULTIADDR: ${CERC_UPSTREAM_NITRO_MULTIADDR:-/dns4/ipld-eth-server/tcp/5005/ws/p2p/16Uiu2HAmSjXJqsyBJgcBUU2HQmykxGseafSatbpq5471XmuaUqyv}
+      CERC_UPSTREAM_NITRO_MULTIADDR: ${CERC_UPSTREAM_NITRO_MULTIADDR:-/dns4/ipld-eth-server-1/tcp/5005/ws/p2p/16Uiu2HAmSjXJqsyBJgcBUU2HQmykxGseafSatbpq5471XmuaUqyv}
       CERC_UPSTREAM_NITRO_PAY_AMOUNT: ${CERC_UPSTREAM_NITRO_PAY_AMOUNT:-100}
     command: ["bash", "./start-server.sh"]
     volumes:

app/data/config/go-nitro/run-nitro-node.sh

@@ -47,4 +47,4 @@ while true; do
   sleep $retry_interval
 done
 
-./nitro -chainurl ${CERC_NITRO_CHAIN_URL} -msgport 3005 -rpcport 4005 -wsmsgport 5005 -pk ${CERC_NITRO_PK} -chainpk ${CERC_NITRO_CHAIN_PK} -naaddress ${NA_ADDRESS} -vpaaddress ${VPA_ADDRESS} -caaddress ${CA_ADDRESS} -usedurablestore ${CERC_NITRO_USE_DURABLE_STORE} -durablestorefolder ${CERC_NITRO_DURABLE_STORE_FOLDER}
+./nitro -chainurl ${CERC_NITRO_CHAIN_URL} -msgport ${CERC_NITRO_MSG_PORT} -rpcport ${CERC_NITRO_RPC_PORT} -wsmsgport ${CERC_NITRO_WS_MSG_PORT} -publicip "0.0.0.0" -pk ${CERC_NITRO_PK} -chainpk ${CERC_NITRO_CHAIN_PK} -naaddress ${NA_ADDRESS} -vpaaddress ${VPA_ADDRESS} -caaddress ${CA_ADDRESS} -usedurablestore ${CERC_NITRO_USE_DURABLE_STORE} -durablestorefolder ${CERC_NITRO_DURABLE_STORE_FOLDER} -tlscertfilepath "" -tlsKeyFilepath ""

app/data/config/ipld-eth-server/entrypoint.sh

@@ -1,34 +1,57 @@
 #!/bin/sh
 
-nitro_addresses_file="/app/deployment/nitro-addresses.json"
+read_nitro_addresses() {
+  nitro_addresses_file="/app/deployment/nitro-addresses.json"
 
-# Check if CERC_NA_ADDRESS environment variable is set
+  # Check if CERC_NA_ADDRESS environment variable is set
-if [ -n "$CERC_NA_ADDRESS" ]; then
+  if [ -n "$CERC_NA_ADDRESS" ]; then
-  echo "CERC_NA_ADDRESS is set to '$CERC_NA_ADDRESS'"
+    echo "CERC_NA_ADDRESS is set to '$CERC_NA_ADDRESS'"
-  echo "CERC_VPA_ADDRESS is set to '$CERC_VPA_ADDRESS'"
+    echo "CERC_VPA_ADDRESS is set to '$CERC_VPA_ADDRESS'"
-  echo "CERC_CA_ADDRESS is set to '$CERC_CA_ADDRESS'"
+    echo "CERC_CA_ADDRESS is set to '$CERC_CA_ADDRESS'"
-  echo "Using the above Nitro addresses"
+    echo "Using the above Nitro addresses"
 
-  export NITRO_NA_ADDRESS=${CERC_NA_ADDRESS}
+    export NITRO_NA_ADDRESS=${CERC_NA_ADDRESS}
-  export NITRO_VPA_ADDRESS=${CERC_VPA_ADDRESS}
+    export NITRO_VPA_ADDRESS=${CERC_VPA_ADDRESS}
-  export NITRO_CA_ADDRESS=${CERC_CA_ADDRESS}
+    export NITRO_CA_ADDRESS=${CERC_CA_ADDRESS}
-else
+  else
-  # Read addresses from a file
+    # Read addresses from a file
-  # Keep retrying until found
+    # Keep retrying until found
-  echo "Reading Nitro addresses from ${nitro_addresses_file}"
+    echo "Reading Nitro addresses from ${nitro_addresses_file}"
+    retry_interval=5
+    while true; do
+      if [[ -e "$nitro_addresses_file" ]]; then
+        export NITRO_NA_ADDRESS=$(jq -r '.nitroAdjudicatorAddress' ${nitro_addresses_file})
+        export NITRO_VPA_ADDRESS=$(jq -r '.virtualPaymentAppAddress' ${nitro_addresses_file})
+        export NITRO_CA_ADDRESS=$(jq -r '.consensusAppAddress' ${nitro_addresses_file})
+
+        break
+      else
+        echo "File not yet available, retrying in $retry_interval seconds..."
+        sleep $retry_interval
+      fi
+    done
+  fi
+}
+
+wait_for_nitro_endpoint() {
   retry_interval=5
   while true; do
-    if [[ -e "$nitro_addresses_file" ]]; then
+    curl -I -s -o /dev/null $NITRO_ENDPOINT/health
-      export NITRO_NA_ADDRESS=$(jq -r '.nitroAdjudicatorAddress' ${nitro_addresses_file})
-      export NITRO_VPA_ADDRESS=$(jq -r '.virtualPaymentAppAddress' ${nitro_addresses_file})
-      export NITRO_CA_ADDRESS=$(jq -r '.consensusAppAddress' ${nitro_addresses_file})
 
+    if [ $? -eq 0 ]; then
+      echo "Nitro endpoint is up"
       break
     else
-      echo "File not yet available, retrying in $retry_interval seconds..."
+      echo "Nitro endpoint not available yet, retrying in $retry_interval seconds..."
       sleep $retry_interval
     fi
   done
+}
+
+if [ "$NITRO_RUN_NODE_IN_PROCESS" = "true" ]; then
+  read_nitro_addresses
+else
+  wait_for_nitro_endpoint
 fi
 
 echo "Beginning the ipld-eth-server process"

app/data/config/watcher-mobymask-v3/mobymask-params.env

@@ -4,7 +4,7 @@
 DEFAULT_CERC_ETH_RPC_ENDPOINT="http://fixturenet-eth-geth-1:8545"
 
 # ETH RPC endpoint used for queries in the watcher
-DEFAULT_CERC_ETH_RPC_QUERY_ENDPOINT="http://ipld-eth-server:8081"
+DEFAULT_CERC_ETH_RPC_QUERY_ENDPOINT="http://ipld-eth-server-1:8081"
 
 # ETH RPC endpoint used for mutations in the watcher
 DEFAULT_CERC_ETH_RPC_MUTATION_ENDPOINT="http://fixturenet-eth-geth-1:8545"

app/data/container-build/cerc-go-nitro/Dockerfile

@@ -0,0 +1,16 @@
+FROM golang:1.21-bullseye AS builder
+
+# Copy files into image
+WORKDIR /app
+COPY . .
+
+# Build the binary
+RUN go build -v -o nitro .
+
+# Reduce image size
+FROM debian:bullseye-slim
+RUN apt-get update
+RUN apt-get install -y ca-certificates jq netcat
+RUN rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+COPY --from=builder /app/nitro .

app/data/container-build/cerc-go-nitro/build.sh

@@ -3,4 +3,6 @@
 
 source ${CERC_CONTAINER_BASE_DIR}/build-base.sh
 
-docker build -t cerc/go-nitro:local -f ${CERC_REPO_BASE_DIR}/go-nitro/docker/local/Dockerfile ${build_command_args} ${CERC_REPO_BASE_DIR}/go-nitro
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+docker build -t cerc/go-nitro:local -f ${SCRIPT_DIR}/Dockerfile ${build_command_args} ${CERC_REPO_BASE_DIR}/go-nitro

app/data/stacks/fixturenet-payments/README.md

@@ -24,14 +24,18 @@ Deploy the stack:
 laconic-so --stack fixturenet-payments deploy --cluster payments up
 
 # Exposed on host ports:
-# 4005: go-nitro node's RPC endpoint
+# 32***: geth in statediffing mode and ipld-eth-server(s)
-# 5005: go-nitro node's p2p endpoint
+# 4005: in-process go-nitro node's RPC endpoint
+# 3005: in-process go-nitro node's p2p TCP endpoint
+# 5005: in-process go-nitro node's p2p WS endpoin
+# 4006: out-of-process go-nitro node's RPC endpoint
+# 3006: out-of-process go-nitro node's p2p TCP endpoint
+# 5006: out-of-process go-nitro node's p2p WS endpoint
 # 15432: MobyMask v3 watcher's db endpoint
 # 3001: MobyMask v3 watcher endpoint
 # 9090: MobyMask v3 watcher relay node endpoint
 # 8080: MobyMask snap
 # 3004: MobyMask v3 app
-# 32***: geth in statediffing mode
 ```
 
 ## Demo

app/data/stacks/fixturenet-payments/demo.md

@@ -3,15 +3,17 @@
 Stack components:
 * `ipld-eth-db` database for statediffed data
 * Local geth + lighthouse blockchain "fixturenet" running in statediffing mode
-* `ipld-eth-server` which runs an ETH RPC API and a GQL server; serves data from `ipld-eth-db`; also runs an in-process go-nitro node for payments required for configured RPC requests
+* `ipld-eth-server-1` and `ipld-eth-server-2` both of which run an ETH RPC API and a GQL server; they both serve data from `ipld-eth-db`
-* A MobyMask v3 watcher that pays the `ipld-eth-server` for ETH RPC requests
+* `ipld-eth-server-1` runs an in-process go-nitro node for payments required for configured RPC requests
+* A go-nitro deployment acting as the remote Nitro node for `ipld-eth-server-2`
+* A MobyMask v3 watcher that pays the `ipld-eth-server-1` for ETH RPC requests
 * A MobyMask v3 app that pays the watcher for reads (GQL queries) and writes
-* An example ERC20 Ponder indexer app that pays the `ipld-eth-server` for ETH RPC requests
+* An example ERC20 Ponder indexer app that pays the `ipld-eth-server-2` for ETH RPC requests
 * An example ERC20 Ponder watcher app that pays the Ponder indexer app for GQL queries
 
 ## Setup
 
-* On starting the stack, MobyMask watcher creates a payment channel with the `ipld-eth-server`'s Nitro node. Check watcher logs and wait for the same:
+* On starting the stack, MobyMask watcher creates a payment channel with the `ipld-eth-server-1`'s (in-process) Nitro node. Check watcher logs and wait for the same:
 
   ```bash
   docker logs -f $(docker ps -aq --filter name="mobymask-watcher-server")
@@ -37,7 +39,7 @@ Stack components:
 * Check the payment channel status:
 
   ```bash
-  docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $WATCHER_UPSTREAM_PAYMENT_CHANNEL -h ipld-eth-server -p 4005"
+  docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $WATCHER_UPSTREAM_PAYMENT_CHANNEL -s false -h ipld-eth-server-1 -p 4005"
 
   # Expected output:
   # {
@@ -53,10 +55,16 @@ Stack components:
   # }
   ```
 
-* In another terminal, check `ipld-eth-server`'s logs to keep track of incoming payments and RPC requests:
+* In another terminal, check `ipld-eth-server-1`'s logs to keep track of incoming payments and RPC requests from the MobyMask watcher:
 
   ```bash
-  docker logs -f $(docker ps -aq --filter name="ipld-eth-server")
+  docker logs -f $(docker ps -aq --filter name="ipld-eth-server-1")
+  ```
+
+* In another terminal, check `ipld-eth-server-2`'s logs to keep track of incoming RPC requests from the Ponder app in indexer mode:
+
+  ```bash
+  docker logs -f $(docker ps -aq --filter name="ipld-eth-server-2")
   ```
 
 * MetaMask flask wallet setup for running the MobyMask app:
@@ -134,6 +142,7 @@ Stack components:
     ```bash
     # Expected output:
     # ...
+    # laconic:payments Received a payment voucher of 50 from 0x86804299822212c070178B5135Ba6DdAcFC357D3
     # laconic:payments Serving a paid query for 0x86804299822212c070178B5135Ba6DdAcFC357D3
     # vulcanize:resolver isPhisher 0x98ae4f9e9d01cc892adfe6871e1db0287039e0c183d3b5bb31d724228c114744 0x2B6AFbd4F479cE4101Df722cF4E05F941523EaD9 TWT:ash1
     # vulcanize:indexer isPhisher: db miss, fetching from upstream server
@@ -143,16 +152,15 @@ Stack components:
     # laconic:payments Making RPC call: eth_chainId
     # laconic:payments Making RPC call: eth_getStorageAt
     # 2023-10-13T06:34:00.483Z ts-nitro:engine {"msg":"Sent message","_msg":{"to":"0xAAA662","from":"0xBBB676",# "payloadSummaries":[],"proposalSummaries":[],"payments":[{"amount":300,"channelId":"0x9a4bdfe03c8e72f368aab07e6bd18f1cd6821170e1a93e59864aad6ee6a853a2"}],"rejectedObjectives":[]}}
-
     ```
 
-  * The watcher makes several ETH RPC requests to `ipld-eth-server` to fetch data required for satisfying the GQL request(s); check `ipld-eth-server` logs for charged RPC requests (`eth_getBlockByHash`, `eth_getBlockByNumber`, `eth_getStorageAt`):
+  * The watcher makes several ETH RPC requests to `ipld-eth-server-1` to fetch data required for satisfying the GQL request(s); check `ipld-eth-server-1` logs for charged RPC requests (`eth_getBlockByHash`, `eth_getBlockByNumber`, `eth_getStorageAt`):
 
     ```bash
     # Expected output:
     # ...
     # 2023/10/13 06:34:57 INFO Received a voucher payer=0xBBB676f9cFF8D242e9eaC39D063848807d3D1D94 amount=100
-    #  2023/10/13 06:34:59 INFO Serving a paid RPC request method=eth_getBlockByHash sender=0xBBB676f9cFF8D242e9eaC39D063848807d3D1D94
+    #  2023/10/13 06:34:59 INFO Serving a paid RPC request method=eth_getBlockByHash cost=50 sender=0xBBB676f9cFF8D242e9eaC39D063848807d3D1D94
     #  time="2023-10-13T06:34:59Z" level=debug msg=START api_method=eth_getBlockByHash api_params="[0x46411a554f30e607bdd79cd157a60a7c8b314c0709557be3357ed2fef53d6c3d false]" api_reqid=52 conn="192.168.64.4:59644" user_id= uuid=a1893211-6992-11ee-a67a-0242c0a8400c
     #  WARN [10-13|06:34:59.133] Attempting GerRPCCalls, but default PluginLoader has not been initialized
     #  time="2023-10-13T06:34:59Z" level=debug msg=END api_method=eth_getBlockByHash api_params="[0x46411a554f30e607bdd79cd157a60a7c8b314c0709557be3357ed2fef53d6c3d false]" api_reqid=52 conn="192.168.64.4:59644" duration=5 user_id= uuid=a1893211-6992-11ee-a67a-0242c0a8400c
@@ -160,7 +168,7 @@ Stack components:
     #  time="2023-10-13T06:34:59Z" level=debug msg=START api_method=eth_chainId api_params="[]" api_reqid=53 conn="192.168.64.4:59658" user_id= uuid=a18a96d9-6992-11ee-a67a-0242c0a8400c
     #  time="2023-10-13T06:34:59Z" level=debug msg=END api_method=eth_chainId api_params="[]" api_reqid=53 conn="192.168.64.4:59658" duration=0 user_id= uuid=a18a96d9-6992-11ee-a67a-0242c0a8400c
     #  2023/10/13 06:34:59 INFO Received a voucher payer=0xBBB676f9cFF8D242e9eaC39D063848807d3D1D94 amount=100
-    #  2023/10/13 06:35:01 INFO Serving a paid RPC request method=eth_getStorageAt sender=0xBBB676f9cFF8D242e9eaC39D063848807d3D1D94
+    #  2023/10/13 06:35:01 INFO Serving a paid RPC request method=eth_getStorageAt cost=50 sender=0xBBB676f9cFF8D242e9eaC39D063848807d3D1D94
     #  time="2023-10-13T06:35:01Z" level=debug msg=START api_method=eth_getStorageAt api_params="[0x2b6afbd4f479ce4101df722cf4e05f941523ead9 0xf76621c2cc1c1705fabbc22d30ffc5ded7f26e4995feb8d1c9812a2697ba1278 0x46411a554f30e607bdd79cd157a60a7c8b314c0709557be3357ed2fef53d6c3d]" api_reqid=54 conn="192.168.64.4:59660" user_id= uuid=a2bd75d2-6992-11ee-a67a-0242c0a8400c
     #  time="2023-10-13T06:35:01Z" level=debug msg=END api_method=eth_getStorageAt api_params="[0x2b6afbd4f479ce4101df722cf4e05f941523ead9 0xf76621c2cc1c1705fabbc22d30ffc5ded7f26e4995feb8d1c9812a2697ba1278 0x46411a554f30e607bdd79cd157a60a7c8b314c0709557be3357ed2fef53d6c3d]" api_reqid=54 conn="192.168.64.4:59660" duration=7 user_id= uuid=a2bd75d2-6992-11ee-a67a-0242c0a8400c
     ```
@@ -186,10 +194,10 @@ Stack components:
   # }
   ```
 
-* Check the watcher - ipld-eth-server payment channel status after a few requests:
+* Check the watcher - ipld-eth-server-1 payment channel status after a few requests:
 
   ```bash
-  docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $WATCHER_UPSTREAM_PAYMENT_CHANNEL -h ipld-eth-server -p 4005"
+  docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $WATCHER_UPSTREAM_PAYMENT_CHANNEL -s false -h ipld-eth-server-1 -p 4005"
 
   # Expected output ('PaidSoFar' should be non zero):
   # {
@@ -216,9 +224,9 @@ Stack components:
   # 08:00:28.701 INFO  payment    Nitro node setup with address 0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d
   #   laconic:payments Starting voucher subscription... +0ms
   # ...
-  # 09:58:54.288 INFO  payment    Creating ledger channel with nitro node 0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE
+  # 09:58:54.288 INFO  payment    Creating ledger channel with nitro node 0x660a4bEF3fbC863Fcd8D3CDB39242aE513d7D92e
   # ...
-  # 09:59:14.230 INFO  payment    Creating payment channel with nitro node 0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE
+  # 09:59:14.230 INFO  payment    Creating payment channel with nitro node 0x660a4bEF3fbC863Fcd8D3CDB39242aE513d7D92e
   # ...
   # 09:59:14.329 INFO  payment    Using payment channel 0x10f049519bc3f862e2b26e974be8666886228f30ea54aab06e2f23718afffab0
   ```
@@ -229,30 +237,29 @@ Stack components:
   export PONDER_UPSTREAM_PAYMENT_CHANNEL=<PAYMENT_CHANNEL_ID>
   ```
 
-* On starting the Ponder app in indexer mode, it creates a payment channel with the `ipld-eth-server`'s Nitro node and then starts the historical sync service
+* On starting the Ponder app in indexer mode, it creates a payment channel with the `ipld-eth-server-2`'s (external) Nitro node and then starts the historical sync service
 
-* The sync service makes several ETH RPC requests to the `ipld-eth-server` to fetch required data; check the `ipld-eth-server` logs for charged RPC requests (`eth_getBlockByNumber`, `eth_getLogs`):
+* The sync service makes several ETH RPC requests to the `ipld-eth-server-2` to fetch required data; check the `ipld-eth-server-2` logs for charged RPC requests (`eth_getBlockByNumber`, `eth_getLogs`):
 
   ```bash
   # Expected output:
   # ...
-  #  2023/10/13 06:59:49 INFO Received a voucher payer=0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d amount=100
+  # 2023/10/18 05:29:38 INFO Serving a paid RPC request method=eth_getBlockByNumber cost=50 sender=0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d
-  #  time="2023-10-13T06:59:51Z" level=debug msg=START api_method=eth_getLogs api_params="[map[address:0x32353a6c91143bfd6c7d363b546e62a9a2489a20 fromBlock:0x5 toBlock:0x68]]" api_reqid=1 conn="192.168.64.2:55578" user_id= uuid=1aedde38-6996-11ee-a67a-0242c0a8400c
+  # time="2023-10-18T05:29:38Z" level=debug msg=START api_method=eth_getBlockByNumber api_params="[latest true]" api_reqid=0 conn="172.26.0.19:42306" user_id= uuid=54992dc3-6d77-11ee-9ede-0242ac1a000f
-  #  2023/10/13 06:59:51 INFO Serving a paid RPC request method=eth_getLogs sender=0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d
+  # WARN [10-18|05:29:38.292] Attempting GerRPCCalls, but default PluginLoader has not been initialized
-  #  WARN [10-13|06:59:51.287] Attempting GerRPCCalls, but default PluginLoader has not been initialized
+  # time="2023-10-18T05:29:38Z" level=debug msg=END api_method=eth_getBlockByNumber api_params="[latest true]" api_reqid=0 conn="172.26.0.19:42306" duration=22 user_id= uuid=54992dc3-6d77-11ee-9ede-0242ac1a000f
-  #  time="2023-10-13T06:59:51Z" level=debug msg="retrieving log cids for receipt ids"
+  # time="2023-10-18T05:29:40Z" level=debug msg=START api_method=eth_getLogs api_params="[map[address:0x32353a6c91143bfd6c7d363b546e62a9a2489a20 fromBlock:0x5 toBlock:0x68]]" api_reqid=1 conn="172.26.0.19:42306" user_id= uuid=55d19200-6d77-11ee-9ede-0242ac1a000f
-  #  time="2023-10-13T06:59:51Z" level=debug msg=END api_method=eth_getLogs api_params="[map[address:0x32353a6c91143bfd6c7d363b546e62a9a2489a20 fromBlock:0x5 toBlock:0x68]]" api_reqid=1 conn="192.168.64.2:55578" duration=17 user_id= uuid=1aedde38-6996-11ee-a67a-0242c0a8400c
+  # 2023/10/18 05:29:40 INFO Serving a paid RPC request method=eth_getLogs cost=50 sender=0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d
-  #  2023/10/13 06:59:51 INFO Received a voucher payer=0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d amount=100
+  # WARN [10-18|05:29:40.340] Attempting GerRPCCalls, but default PluginLoader has not been initialized
-  #  2023/10/13 06:59:53 INFO Serving a paid RPC request method=eth_getBlockByNumber sender=0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d
+  # time="2023-10-18T05:29:40Z" level=debug msg="retrieving log cids for receipt ids"
-  #  2023/10/13 06:59:53 INFO Received a voucher payer=0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d amount=100
+  # time="2023-10-18T05:29:40Z" level=debug msg=END api_method=eth_getLogs api_params="[map[address:0x32353a6c91143bfd6c7d363b546e62a9a2489a20 fromBlock:0x5 toBlock:0x68]]" api_reqid=1 conn="172.26.0.19:42306" duration=20 user_id= uuid=55d19200-6d77-11ee-9ede-0242ac1a000f
-
   # ...
   ```
 
-* Check the ponder - ipld-eth-server payment channel status:
+* Check the ponder - ipld-eth-server-2 payment channel status:
 
   ```bash
-  docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $PONDER_UPSTREAM_PAYMENT_CHANNEL -h ipld-eth-server -p 4005"
+  docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $PONDER_UPSTREAM_PAYMENT_CHANNEL -s false -h go-nitro -p 4006"
 
   # Expected output ('PaidSoFar' is non zero):
   # {

app/data/stacks/fixturenet-payments/stack.yml

@@ -9,15 +9,15 @@ repos:
   # ipld-eth-server with payments -- to be used by ipld-eth-server-payments pod
   - git.vdb.to/cerc-io/ipld-eth-server@payments
   # nitro repo
-  - github.com/cerc-io/ts-nitro@v0.1.13
+  - github.com/cerc-io/ts-nitro@v0.1.15
-  - github.com/cerc-io/go-nitro@v0.1.1-ts-port-0.1.7
+  - github.com/cerc-io/go-nitro@ts-interop # TODO: Use release
   # mobymask watcher repos
-  - github.com/cerc-io/watcher-ts@v0.2.65
+  - github.com/cerc-io/watcher-ts@v0.2.66
-  - github.com/cerc-io/mobymask-v2-watcher-ts@v0.2.3
+  - github.com/cerc-io/mobymask-v2-watcher-ts@v0.2.4
   - github.com/cerc-io/MobyMask@v0.1.3
   # mobymask app repos
   - github.com/cerc-io/mobymask-snap
-  - github.com/cerc-io/mobymask-ui@v0.2.1
+  - github.com/cerc-io/mobymask-ui@v0.2.2
   # ponder repo
   - github.com/cerc-io/ponder@laconic-esm
 containers:
@@ -31,7 +31,7 @@ containers:
   - cerc/ipld-eth-db
   - cerc/ipld-eth-server
   - cerc/nitro-contracts
-  # - cerc/go-nitro
+  - cerc/go-nitro
   - cerc/nitro-rpc-client
   # mobymask watcher images
   - cerc/watcher-ts
@@ -47,7 +47,7 @@ pods:
   - ipld-eth-server-payments
   - ipld-eth-db
   - nitro-contracts
-  # - go-nitro
+  - go-nitro
   - nitro-rpc-client
   - watcher-mobymask-v3
   - mobymask-snap