feat: allow docker compose overrides

- use file override to handle multiple networks
- expose and map only required ports
- name containers differently
- add environment for chain variable
- dont expose ports in image
Signed-off-by: Lakshya Singh <lakshay.singh1108@gmail.com>

docker-compose.yml

@@ -4,22 +4,11 @@ services:
     build:
       dockerfile: ./bitcoind/Dockerfile
     image: bitcoind
-    container_name: bitcoind
-    command:
-      - --testnet
-      - -pid=/home/bitcoin/.bitcoin/testnet3/bitcoind-testnet.pid
+    container_name: bitcoind-test
     volumes:
       - data:/home/bitcoin/.bitcoin
     expose:
-      - 8332
-      - 8333
       - 18332
-      - 18333
-      - 18444
-    ports:
-      - 8333:8333
-      - 18333:18333
-      - 38333:38333
     networks:
       LN_testing:
         aliases:
@@ -31,31 +20,24 @@ services:
     build:
       dockerfile: ./lightningd/Dockerfile
     image: lightningd
-    container_name: lightningd
+    container_name: lightningd-test
     command:
-      - --conf=/home/lightning/.lightning/testnet-config
+      - --conf=/home/lightning/.lightning/test-config
       - --bitcoin-rpcconnect=bitcoind
-      - --bind-addr=core-lightning:19735
-      - --announce-addr=core-lightning:19735
     volumes:
       - clightning:/home/lightning/.lightning
     expose:
-      - 9735
-      - 9835
-    ports:
-      - 9735:9735
-      - 19735:19735
+      - 19735
     networks:
       - LN_testing
-    links:
-      - bitcoin-core:bitcoind
     depends_on:
       bitcoin-core:
         condition: service_healthy
         restart: true
     env_file:
-      - ./assets/testnet-env
-
+      - ./assets/test-env
+    environment:
+      - BITCOIN_CHAIN=test
 
 volumes:
   data:
@@ -66,4 +48,4 @@ volumes:
     external: true
 
 networks:
-  LN_testing:
+  LN_testing: