Use new LND node as routing node (#1700)

* Use same naming scheme between ln containers and env vars

* Add router_lnd container

* Only open channels to router_lnd

* Use 1sat base fee and 0ppm fee rate

* Add script to test routing

* Also fund router_lnd wallet

---------

Co-authored-by: Keyan <34140557+huumn@users.noreply.github.com>

.env.development

@@ -148,6 +148,13 @@ CLN_REST_PORT=9092
 CLN_ADDR=bcrt1q02sqd74l4pxedy24fg0qtjz4y2jq7x4lxlgzrx
 CLN_PUBKEY=03ca7acec181dbf5e427c682c4261a46a0dd9ea5f35d97acb094e399f727835b90
 
+# router lnd container stuff
+ROUTER_LND_REST_PORT=8082
+ROUTER_LND_GRPC_PORT=10011
+# docker exec -u lnd router_lnd lncli newaddress p2wkh --unused
+ROUTER_LND_ADDR=bcrt1qfkmwfpwgn6wt0dd36s79x04swz8vleyafsdpdr
+ROUTER_LND_PUBKEY=02750991fbf62e57631888bc469fae69c5e658bd1d245d8ab95ed883517caa33c3
+
 LNCLI_NETWORK=regtest
 
 # localstack container stuff

docker-compose.yml

@@ -270,7 +270,7 @@ services:
             command bitcoin-cli -chain=regtest -rpcport=${RPC_PORT} -rpcuser=${RPC_USER} -rpcpassword=${RPC_PASS} "$$@"
           }
           blockcount=$$(bitcoin-cli getblockcount 2>/dev/null)
-          nodes=(${SN_LND_ADDR} ${LND_ADDR} ${CLN_ADDR})
+          nodes=(${SN_LND_ADDR} ${LND_ADDR} ${CLN_ADDR} ${ROUTER_LND_ADDR})
           if (( blockcount <= 0 )); then
             echo "Creating wallet and address..."
             bitcoin-cli createwallet ""
@@ -358,7 +358,7 @@ services:
           if [ $$(lncli getinfo | jq '.num_active_channels + .num_pending_channels') -ge 3 ]; then
             exit 0
           else
-            lncli openchannel --node_key=$LND_PUBKEY --connect lnd:9735 --sat_per_vbyte 1 \\
+            lncli openchannel --node_key=$ROUTER_LND_PUBKEY --connect router_lnd:9735 --sat_per_vbyte 1 \\
               --min_confs 0 --local_amt=1000000000 --push_amt=500000000
           fi
         "
@@ -429,7 +429,7 @@ services:
           if [ $$(lncli getinfo | jq '.num_active_channels + .num_pending_channels') -ge 3 ]; then
             exit 0
           else
-            lncli openchannel --node_key=$SN_LND_PUBKEY --connect sn_lnd:9735 --sat_per_vbyte 1 \\
+            lncli openchannel --node_key=$ROUTER_LND_PUBKEY --connect router_lnd:9735 --sat_per_vbyte 1 \\
               --min_confs 0 --local_amt=1000000000 --push_amt=500000000
           fi
         "
@@ -518,12 +518,63 @@ services:
           if [ $$(lightning-cli --regtest getinfo | jq '.num_active_channels + .num_pending_channels') -ge 3 ]; then
             exit 0
           else
-            lightning-cli --regtest connect $SN_LND_PUBKEY@sn_lnd:9735
+            lightning-cli --regtest connect $ROUTER_LND_PUBKEY@router_lnd:9735
-            lightning-cli --regtest fundchannel id=$SN_LND_PUBKEY feerate=1000perkb \\
+            lightning-cli --regtest fundchannel id=$ROUTER_LND_PUBKEY feerate=1000perkb \\
               amount=1000000000 push_msat=500000000000 minconf=0
           fi
         "
     cpu_shares: "${CPU_SHARES_MODERATE}"
+  router_lnd:
+    build:
+      context: ./docker/lnd
+      args:
+        - LN_NODE_FOR=router
+    container_name: router_lnd
+    restart: unless-stopped
+    profiles:
+      - payments
+    healthcheck:
+      <<: *healthcheck
+      test: ["CMD-SHELL", "lncli", "getinfo"]
+    depends_on: *depends_on_bitcoin
+    env_file: *env_file
+    command:
+      - 'lnd'
+      - '--noseedbackup'
+      - '--trickledelay=5000'
+      - '--alias=router_lnd'
+      - '--externalip=router_lnd'
+      - '--tlsextradomain=router_lnd'
+      - '--tlsextradomain=host.docker.internal'
+      - '--listen=0.0.0.0:9735'
+      - '--rpclisten=0.0.0.0:10009'
+      - '--restlisten=0.0.0.0:8080'
+      - '--bitcoin.active'
+      - '--bitcoin.regtest'
+      - '--bitcoin.node=bitcoind'
+      - '--bitcoind.rpchost=bitcoin'
+      - '--bitcoind.rpcuser=${RPC_USER}'
+      - '--bitcoind.rpcpass=${RPC_PASS}'
+      - '--bitcoind.zmqpubrawblock=tcp://bitcoin:${ZMQ_BLOCK_PORT}'
+      - '--bitcoind.zmqpubrawtx=tcp://bitcoin:${ZMQ_TX_PORT}'
+      - '--protocol.wumbo-channels'
+      - '--bitcoin.basefee=1000'
+      - '--bitcoin.feerate=0'
+      - '--maxchansize=1000000000'
+      - '--allow-circular-route'
+      - '--bitcoin.defaultchanconfs=1'
+      - '--maxpendingchannels=10'
+    expose:
+      - "9735"
+    ports:
+      - "${ROUTER_LND_REST_PORT}:8080"
+      - "${ROUTER_LND_GRPC_PORT}:10009"
+    volumes:
+      - router_lnd:/home/lnd/.lnd
+    labels:
+      CLI: "lncli"
+      CLI_USER: "lnd"
+    cpu_shares: "${CPU_SHARES_MODERATE}"
   channdler:
     image: mcuadros/ofelia:latest
     container_name: channdler
@@ -661,6 +712,7 @@ volumes:
   sn_lnd:
   lnd:
   cln:
+  router_lnd:
   s3:
   nwc_send:
   nwc_recv:

docker/lnd/router/tls.cert

@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

docker/lnd/router/tls.key

@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIBThCj41Abt/iEDYYMXb+mfHJmXN211JGYDjekJOmCbUoAoGCCqGSM49
+AwEHoUQDQgAEFPJk3jfBfWyHM7TB2pCJ45J5VqVIr9x4nvBIZPQdvizgV4qqiNnn
+KTohZtH7eJ/T/epN3V9UNH3jW5MTcnIv+g==
+-----END EC PRIVATE KEY-----

scripts/test-routing.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+# test if every node can pay invoices from every other node
+
+SN_LND_PUBKEY=02cb2e2d5a6c5b17fa67b1a883e2973c82e328fb9bd08b2b156a9e23820c87a490
+LND_PUBKEY=028093ae52e011d45b3e67f2e0f2cb6c3a1d7f88d2920d408f3ac6db3a56dc4b35
+CLN_PUBKEY=03ca7acec181dbf5e427c682c4261a46a0dd9ea5f35d97acb094e399f727835b90
+
+# -e: exit on first failure | -x: print commands
+set -ex
+
+sndev cli lnd queryroutes $SN_LND_PUBKEY 1000
+sndev cli lnd queryroutes $CLN_PUBKEY 1000
+
+sndev cli sn_lnd queryroutes $LND_PUBKEY 1000
+sndev cli sn_lnd queryroutes $CLN_PUBKEY 1000
+
+# https://docs.corelightning.org/reference/lightning-getroute
+sndev cli cln getroute $LND_PUBKEY 1000 0
+sndev cli cln getroute $SN_LND_PUBKEY 1000 0