diff --git a/services/s3_gate/.s3.env b/services/s3_gate/.s3.env
index e89578a..e69de29 100644
--- a/services/s3_gate/.s3.env
+++ b/services/s3_gate/.s3.env
@@ -1,10 +0,0 @@
-S3_GW_REBALANCE_INTERVAL=30s
-S3_GW_HEALTHCHECK_TIMEOUT=15s
-S3_GW_CONNECT_TIMEOUT=10s
-
-S3_GW_LOGGER_LEVEL=debug
-
-S3_GW_MAX_CLIENTS_COUNT=100
-S3_GW_MAX_CLIENTS_DEADLINE=30s
-
-S3_GW_RESOLVE_ORDER=nns
diff --git a/services/s3_gate/cfg/config.yml b/services/s3_gate/cfg/config.yml
new file mode 100644
index 0000000..374e4be
--- /dev/null
+++ b/services/s3_gate/cfg/config.yml
@@ -0,0 +1,31 @@
+logger:
+  level: debug
+
+# Interval to check node health
+rebalance_interval: 30s
+
+# Timeout to check node health during rebalance
+healthcheck_timeout: 15s
+
+# Timeout to connect to a node
+connect_timeout: 10s
+
+# Limits for processing of clients' requests
+max_clients_count: 100
+
+# Deadline after which the gate sends error `RequestTimeout` to a client
+max_clients_deadline: 30s
+  
+resolve_order:
+  - nns
+      
+server:
+  - tls:
+      enabled: true
+      cert_file: /tls.crt
+      key_file: /tls.key
+
+# Wallet configuration
+wallet:
+  path: /wallet.json # Path to wallet
+  passphrase: "s3" # Passphrase to decrypt wallet
diff --git a/services/s3_gate/docker-compose.yml b/services/s3_gate/docker-compose.yml
index 8dd9606..f86caf5 100644
--- a/services/s3_gate/docker-compose.yml
+++ b/services/s3_gate/docker-compose.yml
@@ -17,14 +17,12 @@ services:
       - ./tls.key:/tls.key
       - ./tls.crt:/tls.crt
       - ./../../vendor/hosts:/etc/hosts
+      - ./cfg:/etc/frostfs/s3
     stop_signal: SIGKILL
     env_file: [ ".env", ".s3.env", ".int_test.env" ]
+    command: [ "frostfs-s3-gw", "--config", "/etc/frostfs/s3/config.yml" ]
     environment:
-      - S3_GW_WALLET_PATH=/wallet.json
-      - S3_GW_WALLET_PASSPHRASE=s3
       - S3_GW_RPC_ENDPOINT=http://morph-chain.${LOCAL_DOMAIN}:30333
-      - S3_GW_SERVER_0_TLS_KEY_FILE=/tls.key
-      - S3_GW_SERVER_0_TLS_CERT_FILE=/tls.crt
       - S3_GW_SERVER_0_ADDRESS=s3.${LOCAL_DOMAIN}:8080
       - S3_GW_LISTEN_DOMAINS=s3.${LOCAL_DOMAIN}
       - S3_GW_TREE_SERVICE=s01.${LOCAL_DOMAIN}:8080