diff --git a/.env_template b/.env_template
index 959f0f3..249cde5 100644
--- a/.env_template
+++ b/.env_template
@@ -1,3 +1,6 @@
+CRAWLER_PORT="9020"
+CRAWLER_METRICS_PORT="9080"
+DB_PORT="5433"
 CRAWLER_LOG_LEVEL="info"
 CRAWLER_PSQL_ENDP="postgres://user:password@db:5432/armiarmadb"
 CRAWLER_PEERS_BACKUP="12h"
diff --git a/.gitignore b/.gitignore
index 5d93a70..0bea833 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,9 +4,15 @@
 # do not include unnecesary files such as:
 # log .txt s
 **/*.txt
+
 # launchers
 **/*.sh
+
 # docker-compose volumes
 app-data/*_db
 
+# configurations
 *.env
+
+# IDE configuration
+.idea
diff --git a/docker-compose.yaml b/docker-compose.yaml
index ab8bc12..80ceefa 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -17,7 +17,7 @@ services:
                         - ./app-data/postgresql_db:/var/lib/postgresql/data
                 networks: [ cluster ]
                 ports:
-                        - "127.0.0.1:5432:5432"
+                        - "127.0.0.1:${DB_PORT}:5432"
                 healthcheck:
                   test: pg_isready -U user -d armiarmadb
                   interval: 10s
@@ -70,5 +70,5 @@ services:
                     condition: service_healthy
                 networks: [ cluster ]
                 ports: 
-                        - "9020:9020"
-                        - "127.0.0.1:9080:9080"
+                        - "${CRAWLER_PORT}:9020"
+                        - "127.0.0.1:${CRAWLER_METRICS_PORT}:9080"