refactor: use custom configs only for local-network

db-sync docker image has all the configurations embedded, and
loads the appropriate one by configuring the NETWORK env.
Since we use different dbsync versions for sanchonet and mainnet/preview/preprod,
allow db-sync to load the appropriate config files instead of maintaining two
sets of configuration files.
local-network still needs to load custom config files, since it is a non-standard
network specific to SDK e2e tests.

compose/common.yml

@@ -101,7 +101,6 @@ services:
     <<:
       - *logging
       - *with-postgres
-    command: ['--config', '/config/cardano-db-sync/config.json', '--socket-path', '/node-ipc/node.socket']
     environment:
       POSTGRES_HOST: postgres
       POSTGRES_PORT: 5432

packages/cardano-services/docker-compose.yml

@@ -21,8 +21,8 @@ services:
       - ./config/network/${NETWORK:-mainnet}:/config
 
   cardano-db-sync:
-    volumes:
-      - ./config/network/${NETWORK:-mainnet}:/config
+    environment:
+      NETWORK: ${NETWORK:-mainnet}
 
   cardano-submit-api:
     volumes:

packages/e2e/docker-compose.yml

@@ -61,6 +61,7 @@ services:
     depends_on:
       file-server:
         condition: service_healthy
+    command: ['--config', '/config/cardano-db-sync/config.json', '--socket-path', '/node-ipc/node.socket']
     volumes:
       - ./local-network/config/network:/config