tests: use rocksdb in the integration tests (#819)

__tests__/integration/configuration/docker-compose.yml

@@ -15,7 +15,7 @@ services:
       "--wallet-index",
       "--allow-mining-without-peers",
       "--unsafe-mode", "nano-testnet-alpha",
-      "--memory-storage",
+      "--data", "./tmp",
       "--nc-history-index",
     ]
     environment:
@@ -29,12 +29,18 @@ services:
         target: /privnet/conf
     networks:
       - hathor-privnet
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; import json; r = urllib.request.urlopen('http://localhost:8080/v1a/status'); body = json.loads(r.read()); assert body['server']['state'] == 'READY'"]
+      interval: 5s
+      timeout: 10s
+      retries: 10
 
   tx-mining-service:
     image:
       ${HATHOR_LIB_INTEGRATION_TESTS_TXMINING_IMAGE:-hathornetwork/tx-mining-service}
     depends_on:
-      - fullnode
+      fullnode:
+        condition: service_healthy
     ports:
       - "8034:8034" # Not mandatory to keep this port open, but helpful for developer machine debugging
       - "8035:8035"