use cookieauth for bitcoind

.gitignore

@@ -5,3 +5,4 @@ data
 data/boltz/*
 !data/boltz/boltz.conf
 !data/boltz/seed.dat
+.idea/

data/boltz/boltz.conf

@@ -60,8 +60,7 @@ maxZeroConfAmount = 0
   zmqpubrawtx = "tcp://bitcoind:29000"
   zmqpubrawblock = "tcp://bitcoind:29001"
   port = 18_443
-  user = "regtest"
-  password = "regtest"
+  cookie = "/root/.bitcoin/regtest/.cookie"
 
   [currencies.lnd]
   host = "lnd-2"

docker-compose.yml

@@ -15,6 +15,8 @@ services:
       - ./data/lnd-2:/data/lnd/
       - ./data/boltz/:/root/.boltz/
       - ./data/elements/:/root/.elements/
+    volumes_from:
+      - bitcoind:ro
 
   anvil:
     hostname: anvil
@@ -36,8 +38,6 @@ services:
       - -txindex
       - -rpcallowip=0.0.0.0/0
       - -rpcbind=0.0.0.0
-      - -rpcuser=regtest
-      - -rpcpassword=regtest
     expose:
       - 29000
       - 29001
@@ -73,8 +73,6 @@ services:
       - --bind-addr=0.0.0.0:9735
       - --bitcoin-rpcconnect=bitcoind
       - --bitcoin-rpcport=18443
-      - --bitcoin-rpcuser=regtest
-      - --bitcoin-rpcpassword=regtest
       - --grpc-port=9736
       - --dev-bitcoind-poll=3
     expose:
@@ -83,6 +81,8 @@ services:
       - 9736:9736
     volumes:
       - ./data/clightning-1:/root/.lightning/
+    volumes_from:
+      - bitcoind:ro
 
   lnd-1:
     hostname: lnd-1
@@ -100,8 +100,7 @@ services:
       - --bitcoind.rpchost=bitcoind
       - --bitcoind.zmqpubrawtx=bitcoind:29000
       - --bitcoind.zmqpubrawblock=bitcoind:29001
-      - --bitcoind.rpcuser=regtest
-      - --bitcoind.rpcpass=regtest
+      - --bitcoind.rpccookie=/root/.bitcoin/regtest/.cookie
       - --noseedbackup
       - --protocol.wumbo-channels
     expose:
@@ -113,6 +112,8 @@ services:
       - 10009:10009
     volumes:
       - ./data/lnd-1:/root/.lnd/
+    volumes_from:
+      - bitcoind:ro
 
   lnd-2:
     hostname: lnd-2
@@ -130,8 +131,7 @@ services:
       - --bitcoind.rpchost=bitcoind
       - --bitcoind.zmqpubrawtx=bitcoind:29000
       - --bitcoind.zmqpubrawblock=bitcoind:29001
-      - --bitcoind.rpcuser=regtest
-      - --bitcoind.rpcpass=regtest
+      - --bitcoind.rpccookie=/root/.bitcoin/regtest/.cookie
       - --noseedbackup
       - --protocol.wumbo-channels
     expose:
@@ -140,6 +140,8 @@ services:
       - 10009
     volumes:
       - ./data/lnd-2:/root/.lnd/
+    volumes_from:
+      - bitcoind:ro
 
   electrs:
     hostname: electrs

docker-scripts.sh

@@ -2,7 +2,7 @@
 export COMPOSE_PROJECT_NAME=regtest
 
 bitcoin-cli-sim() {
-  docker exec regtest-bitcoind-1 bitcoin-cli -rpcuser=regtest -rpcpassword=regtest -regtest "$@"
+  docker exec regtest-bitcoind-1 bitcoin-cli --rpccookiefile=/root/.bitcoin/regtest/.cookie -regtest "$@"
 }
 
 elements-cli-sim() {