diff --git a/docker-compose.yaml b/docker-compose.yaml
index 77c00294..5fdc2d3a 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -131,6 +131,7 @@ services:
     volumes:
       - ./config:/config
     depends_on:
+      - fluent-bit
       - redis
       - spot-user
       - spot-store
@@ -155,6 +156,7 @@ services:
     volumes:
       - ./config:/config
     depends_on:
+      - fluent-bit
       - db
       - redis
       - kafka
@@ -179,11 +181,17 @@ services:
     volumes:
       - ./config:/config
     depends_on:
+      - fluent-bit
       - db
       - redis
       - kafka
     networks:
       - spot-network
+    logging:
+      driver: fluentd
+      options:
+        fluentd-address: 127.0.0.1:24224
+        tag: spot-payment
 
   spot-store:
     build:
@@ -199,6 +207,7 @@ services:
     volumes:
       - ./config:/config
     depends_on:
+      - fluent-bit
       - db
       - redis
     networks:
@@ -220,6 +229,7 @@ services:
     volumes:
       - ./config:/config
     depends_on:
+      - fluent-bit
       - db
       - redis
     networks:
diff --git a/observability/fluent-bit/fluent-bit.conf b/observability/fluent-bit/fluent-bit.conf
new file mode 100644
index 00000000..97629bc3
--- /dev/null
+++ b/observability/fluent-bit/fluent-bit.conf
@@ -0,0 +1,18 @@
+[SERVICE]
+    Flush        1
+    Daemon       Off
+    Log_Level    info
+
+[INPUT]
+    Name         forward
+    Listen       0.0.0.0
+    Port         24224
+
+[OUTPUT]
+    Name        loki
+    Match       *
+    Host        loki
+    Port        3100
+    Labels      job=fluent-bit
+    Line_Format json
+
diff --git a/observability/grafana/dashboards/loki.json b/observability/grafana/dashboards/loki.json
new file mode 100644
index 00000000..c362752a
--- /dev/null
+++ b/observability/grafana/dashboards/loki.json
@@ -0,0 +1,89 @@
+{
+  "uid": "loki-poc",
+  "title": "Loki Logs - POC",
+  "timezone": "browser",
+  "schemaVersion": 38,
+  "version": 1,
+  "refresh": "10s",
+  "tags": ["loki", "logs", "poc"],
+  "time": { "from": "now-15m", "to": "now" },
+  "templating": {
+    "list": [
+      {
+        "name": "service",
+        "type": "query",
+        "datasource": { "type": "loki", "uid": "loki-thomas-vitale" },
+        "refresh": 1,
+        "query": "label_values({job=\"fluent-bit\"}, container_name)",
+        "includeAll": true,
+        "allValue": ".*",
+        "multi": false,
+        "current": { "text": "All", "value": "$__all" }
+      },
+      {
+        "name": "level",
+        "type": "custom",
+        "query": "ALL,ERROR,WARN,INFO,DEBUG",
+        "current": { "text": "ALL", "value": "ALL" }
+      }
+    ]
+  },
+  "annotations": { "list": [] },
+  "panels": [
+    {
+      "type": "timeseries",
+      "title": "Error logs / min",
+      "id": 1,
+      "datasource": { "type": "loki", "uid": "__default__" },
+      "gridPos": { "x": 0, "y": 0, "w": 12, "h": 8 },
+      "targets": [
+        {
+          "refId": "A",
+          "expr": "sum by (container_name) (rate({job=\"fluent-bit\", container_name=~\"$service\"} |~ \"(?i)error\" [1m]))",
+          "legendFormat": "{{container_name}}"
+        }
+      ],
+      "options": {
+        "legend": { "showLegend": true, "displayMode": "list", "placement": "bottom" },
+        "tooltip": { "mode": "multi" }
+      }
+    },
+    {
+      "type": "bargauge",
+      "title": "Top services by ERROR (last 15m)",
+      "id": 2,
+      "datasource": { "type": "loki", "uid": "__default__" },
+      "gridPos": { "x": 12, "y": 0, "w": 12, "h": 8 },
+      "targets": [
+        {
+          "refId": "A",
+          "expr": "topk(10, sum by (container_name) (count_over_time({job=\"fluent-bit\", container_name=~\"$service\"} |~ \"(?i)error\" [15m])))",
+          "legendFormat": "{{container_name}}"
+        }
+      ],
+      "options": {
+        "displayMode": "basic",
+        "reduceOptions": { "calcs": ["lastNotNull"], "values": false }
+      }
+    },
+    {
+      "type": "logs",
+      "title": "Recent logs",
+      "id": 3,
+      "datasource": { "type": "loki", "uid": "__default__" },
+      "gridPos": { "x": 0, "y": 8, "w": 24, "h": 12 },
+      "targets": [
+        {
+          "refId": "A",
+          "expr": "{job=\"fluent-bit\", container_name=~\"$service\"}"
+        }
+      ],
+      "options": {
+        "showTime": true,
+        "wrapLogMessage": true,
+        "prettifyLogMessage": true,
+        "sortOrder": "Descending"
+      }
+    }
+  ]
+}
diff --git a/observability/grafana/dashboards/spring-gateway.json b/observability/grafana/dashboards/spring-gateway.json
new file mode 100644
index 00000000..81ad2b36
--- /dev/null
+++ b/observability/grafana/dashboards/spring-gateway.json
@@ -0,0 +1,116 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": { "type": "datasource", "uid": "grafana" },
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "target": { "limit": 100, "matchAny": false, "tags": [], "type": "dashboard" },
+        "type": "dashboard"
+      }
+    ]
+  },
+  "description": "Loki-only POC dashboard (logs only)",
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 0,
+  "id": 2,
+  "links": [],
+  "liveNow": false,
+  "panels": [
+    {
+      "collapsed": false,
+      "datasource": { "type": "loki", "uid": "loki-thomas-vitale" },
+      "gridPos": { "h": 1, "w": 24, "x": 0, "y": 0 },
+      "id": 50,
+      "panels": [],
+      "targets": [{ "datasource": { "type": "loki", "uid": "loki-thomas-vitale" }, "refId": "A" }],
+      "title": "Logs",
+      "type": "row"
+    },
+    {
+      "datasource": { "type": "loki", "uid": "loki-thomas-vitale" },
+      "gridPos": { "h": 12, "w": 24, "x": 0, "y": 1 },
+      "id": 1001,
+      "options": {
+        "dedupStrategy": "none",
+        "enableLogDetails": true,
+        "prettifyLogMessage": false,
+        "showCommonLabels": false,
+        "showLabels": false,
+        "showTime": true,
+        "sortOrder": "Descending",
+        "wrapLogMessage": true
+      },
+      "targets": [
+        {
+          "datasource": { "type": "loki", "uid": "loki-thomas-vitale" },
+          "editorMode": "code",
+          "expr": "{job=~\"$job\"}",
+          "queryType": "range",
+          "refId": "A"
+        }
+      ],
+      "title": "Log Stream",
+      "type": "logs"
+    },
+    {
+      "collapsed": false,
+      "datasource": { "type": "loki", "uid": "loki-thomas-vitale" },
+      "gridPos": { "h": 1, "w": 24, "x": 0, "y": 13 },
+      "id": 51,
+      "panels": [],
+      "targets": [{ "datasource": { "type": "loki", "uid": "loki-thomas-vitale" }, "refId": "A" }],
+      "title": "Notes",
+      "type": "row"
+    },
+    {
+      "datasource": { "type": "loki", "uid": "loki-thomas-vitale" },
+      "gridPos": { "h": 4, "w": 24, "x": 0, "y": 14 },
+      "id": 1002,
+      "options": {
+        "content": "POC: Fluent Bit → Loki → Grafana. 이 대시보드는 Loki 로그만 확인합니다.",
+        "mode": "markdown"
+      },
+      "title": "POC Memo",
+      "type": "text"
+    }
+  ],
+  "refresh": "1m",
+  "schemaVersion": 38,
+  "tags": [],
+  "templating": {
+    "list": [
+      {
+        "current": { "selected": true, "text": "All", "value": ".*" },
+        "datasource": { "type": "loki", "uid": "loki-thomas-vitale" },
+        "definition": "label_values(job)",
+        "hide": 0,
+        "includeAll": true,
+        "label": "Job",
+        "multi": true,
+        "name": "job",
+        "options": [],
+        "query": { "query": "label_values(job)", "refId": "StandardVariableQuery" },
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 1,
+        "type": "query"
+      }
+    ]
+  },
+  "time": { "from": "now-15m", "to": "now" },
+  "timepicker": {
+    "refresh_intervals": ["5s", "10s", "30s", "1m", "5m", "15m", "30m", "1h", "2h", "1d"],
+    "time_options": ["5m", "15m", "1h", "6h", "12h", "24h", "2d", "7d", "30d"]
+  },
+  "timezone": "",
+  "title": "Spring Cloud Gateway (Loki Logs Only)",
+  "uid": "spring-cloud-gateway-loki-logs-only",
+  "version": 1,
+  "weekStart": ""
+}
diff --git a/observability/grafana/grafana.ini b/observability/grafana/grafana.ini
new file mode 100644
index 00000000..1bb91819
--- /dev/null
+++ b/observability/grafana/grafana.ini
@@ -0,0 +1,6 @@
+[analytics]
+enabled = false
+reporting_enabled = false
+
+[users]
+default_theme = light
\ No newline at end of file
diff --git a/test.sh b/test.sh
index 8c82da16..91f166fe 100755
--- a/test.sh
+++ b/test.sh
@@ -12,6 +12,10 @@ docker volume ls -q | grep "kafka-data" | xargs -r docker volume rm
 # 컨테이너가 없을 경우 에러 메시지를 숨기기 위해 || true 사용
 docker rm -f redis_cache local-postgres_db spot-gateway spot-user spot-store spot-order spot-payment 2>/dev/null || true
 
+echo "=== Observability Stack 먼저 실행 (fluent-bit, loki, grafana) ==="
+docker compose up -d fluent-bit loki grafana
+sleep 3
+
 echo "=== 각 MSA 서비스 빌드 ==="
 for service in spot-gateway spot-user spot-store spot-order spot-payment; do
     echo ">> $service 빌드 시작"
@@ -33,4 +37,4 @@ LOG_FILE="./logs/current_logs_$(date +'%Y%m%d_%H%M%S').txt"
 
 #docker compose logs -f | \
 #    grep --line-buffered -v -E "redis_cache|local-postgres_db" | \
-#    tee -a "$LOG_FILE"
\ No newline at end of file
+#    tee -a "$LOG_FILE"