diff --git a/app_python/app.py b/app_python/app.py
index 77e4af2f8a..14d3caa4c0 100644
--- a/app_python/app.py
+++ b/app_python/app.py
@@ -3,18 +3,50 @@
 Main application module
 """
 import json
-from flask import Flask, jsonify, request
+from flask import Flask, Response, jsonify, request
 from datetime import datetime, timezone
 import logging
 import os
 import platform
 import socket
+from prometheus_client import Counter, Histogram, Gauge, generate_latest
+
 
 HOST = os.getenv('HOST', '0.0.0.0')
 PORT = int(os.getenv('PORT', 5000))
 DEBUG = os.getenv('DEBUG', 'False').lower() == 'true'
 
 
+class PrometheusStats:
+    http_requests_total: Counter
+    http_request_duration_seconds: Histogram
+    http_requests_in_progress: Gauge
+    system_info_duration_seconds: Histogram
+
+    def __init__(self):
+        self.http_requests_total = Counter(
+            'http_requests_total',
+            'Total HTTP requests',
+            ['method', 'endpoint', 'status']
+        )
+        self.http_request_duration_seconds = Histogram(
+            'http_request_duration_seconds',
+            'HTTP request duration',
+            ['method', 'endpoint']
+        )
+        self.http_requests_in_progress = Gauge(
+            'http_requests_in_progress',
+            'HTTP requests currently being processed'
+        )
+        self.system_info_duration_seconds = Histogram(
+            'system_info_duration_seconds',
+            'System stats collection time'
+        )
+
+
+prometheus = PrometheusStats()
+
+
 class JSONFormatter(logging.Formatter):
     def __init__(self):
         super().__init__()
@@ -92,27 +124,33 @@ def get_http_extra_info():
 
 
 @app.route('/')
+@prometheus.http_request_duration_seconds.labels('GET', '/').time()
+@prometheus.http_requests_in_progress.track_inprogress()
 def index():
     """Main endpoint - service and system information."""
     logger.debug(f'Request: {request.method} {request.path}', extra=get_http_extra_info())
-    return jsonify({
-        'service': {
-            'name':        'devops-info-service',
-            'version':     '1.0.0',
-            'description': 'DevOps course info service',
-            'framework':   'Flask'
-        },
-        'system':  get_system_info(),
-        'runtime': get_uptime(),
-        'request': get_request_info(),
-        'endpoints': [
-            {"path": "/",       "method": "GET", "description": "Service information"},
-            {"path": "/health", "method": "GET", "description": "Health check"}
-        ]
-    })
+    with prometheus.system_info_duration_seconds.time():
+        response = {
+            'service': {
+                'name':        'devops-info-service',
+                'version':     '1.0.0',
+                'description': 'DevOps course info service',
+                'framework':   'Flask'
+            },
+            'system':  get_system_info(),
+            'runtime': get_uptime(),
+            'request': get_request_info(),
+            'endpoints': [
+                {"path": "/",       "method": "GET", "description": "Service information"},
+                {"path": "/health", "method": "GET", "description": "Health check"}
+            ]
+        }
+    return jsonify(response)
 
 
 @app.route('/health')
+@prometheus.http_request_duration_seconds.labels('GET', '/health').time()
+@prometheus.http_requests_in_progress.track_inprogress()
 def health():
     logger.debug(f'Request: {request.method} {request.path}', extra=get_http_extra_info())
     return jsonify({
@@ -122,6 +160,13 @@ def health():
     })
 
 
+@app.route('/metrics')
+@prometheus.http_request_duration_seconds.labels('GET', '/metrics').time()
+@prometheus.http_requests_in_progress.track_inprogress()
+def metrics():
+    return Response(response=generate_latest(), status=200, content_type='text/plain')
+
+
 @app.errorhandler(404)
 def notfound_handler(e):
     logger.info('A 404 Not Found error occured', extra=get_http_extra_info())
@@ -140,6 +185,13 @@ def internal_error(e):
     }), 500
 
 
+@app.after_request
+def after_request(response: Response):
+    prometheus.http_requests_total.labels(request.method, request.path,
+                                          str(response.status_code)).inc()
+    return response
+
+
 START_TIME = datetime.now(timezone.utc)
 logger.info('Application starting... Configured with log level=%s', 'DEBUG' if DEBUG else 'INFO')
 if __name__ == '__main__':
diff --git a/app_python/requirements.txt b/app_python/requirements.txt
index f0950a10ff..ad21365013 100644
--- a/app_python/requirements.txt
+++ b/app_python/requirements.txt
@@ -1,2 +1,3 @@
 Flask==3.1.0
 gunicorn==24.0.0
+prometheus-client==0.23.1
diff --git a/monitoring/docker-compose.yml b/monitoring/docker-compose.yml
index df98f69d30..00a5f1cc63 100644
--- a/monitoring/docker-compose.yml
+++ b/monitoring/docker-compose.yml
@@ -17,7 +17,7 @@ services:
       resources:
         limits:
           cpus: '1.0'
-          memory: 3G
+          memory: 1G
         reservations:
           cpus: '1'
           memory: 1G
@@ -52,11 +52,8 @@ services:
     deploy:
       resources:
         limits:
-          cpus: '1.0'
-          memory: 1G
-        reservations:
-          cpus: '1'
-          memory: 500M
+          cpus: '0.5'
+          memory: 512M
     healthcheck:
       test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:3000/api/health || exit 1"]
       interval: 10s
@@ -76,12 +73,37 @@ services:
     deploy:
       resources:
         limits:
-          cpus: '3.0'
-          memory: 4G
-        reservations:
-          cpus: '3'
+          cpus: '0.5'
+          memory: 256M
+    healthcheck:
+      test: ["CMD-SHELL", "curl -f http://localhost:5000/health || exit 1"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  prometheus:
+    image: prom/prometheus:v3.9.0
+    ports:
+      - 9090:9090
+    volumes:
+      - ${PWD}/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml:ro
+      - prometheus-data:/prometheus:rw
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.retention.time=15d'
+      - '--storage.tsdb.retention.size=10GB'
+    deploy:
+      resources:
+        limits:
           memory: 1G
+          cpus: '1.0'
+    healthcheck:
+      test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:9090/-/healthy || exit 1"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
 
 volumes:
   loki-data:
   grafana-data:
+  prometheus-data:
diff --git a/monitoring/docs/L8t1_metrics_endpoint.png b/monitoring/docs/L8t1_metrics_endpoint.png
new file mode 100644
index 0000000000..4d02ea772f
Binary files /dev/null and b/monitoring/docs/L8t1_metrics_endpoint.png differ
diff --git a/monitoring/docs/L8t2_query.png b/monitoring/docs/L8t2_query.png
new file mode 100644
index 0000000000..d45e53a0d9
Binary files /dev/null and b/monitoring/docs/L8t2_query.png differ
diff --git a/monitoring/docs/L8t2_targets_up.png b/monitoring/docs/L8t2_targets_up.png
new file mode 100644
index 0000000000..daf9d61e2d
Binary files /dev/null and b/monitoring/docs/L8t2_targets_up.png differ
diff --git a/monitoring/docs/L8t3_custom_dashboard.png b/monitoring/docs/L8t3_custom_dashboard.png
new file mode 100644
index 0000000000..cb9c621d26
Binary files /dev/null and b/monitoring/docs/L8t3_custom_dashboard.png differ
diff --git a/monitoring/docs/L8t4_healthy.png b/monitoring/docs/L8t4_healthy.png
new file mode 100644
index 0000000000..fad85d6522
Binary files /dev/null and b/monitoring/docs/L8t4_healthy.png differ
diff --git a/monitoring/docs/LAB08.md b/monitoring/docs/LAB08.md
new file mode 100644
index 0000000000..70b9dd443a
--- /dev/null
+++ b/monitoring/docs/LAB08.md
@@ -0,0 +1,746 @@
+# Task 1
+
+### Screenshot of `/metrics`
+
+![metrics](/monitoring/docs/L8t1_metrics_endpoint.png)
+
+### Definition of metrics
+
+```python
+# ...
+from prometheus_client import Counter, Histogram, Gauge, generate_latest
+
+# ...
+
+class PrometheusStats:
+    http_requests_total: Counter
+    http_request_duration_seconds: Histogram
+    http_requests_in_progress: Gauge
+    system_info_duration_seconds: Histogram
+
+    def __init__(self):
+        self.http_requests_total = Counter(
+            'http_requests_total',
+            'Total HTTP requests',
+            ['method', 'endpoint', 'status']
+        )
+        self.http_request_duration_seconds = Histogram(
+            'http_request_duration_seconds',
+            'HTTP request duration',
+            ['method', 'endpoint']
+        )
+        self.http_requests_in_progress = Gauge(
+            'http_requests_in_progress',
+            'HTTP requests currently being processed'
+        )
+        self.system_info_duration_seconds = Histogram(
+            'system_info_duration_seconds',
+            'System stats collection time'
+        )
+
+
+prometheus = PrometheusStats()
+# ...
+```
+
+### Explanation of metrics choice
+
+The HTTP-related metrics in the declaration above are required by the lab.
+
+The only logic-related metric that made sense in the context of the app is the system info query time, so I implemented
+it similarly to `http_request_duration_seconds`, as a Histogram. I could subdivide it into queries to different parts of
+the system, but the metric reports very low time consumption already, so I think there is no point in that.
+
+# Task 2
+
+### All targets up
+
+![targets](/monitoring/docs/L8t2_targets_up.png)
+
+### Successful query
+
+![query](/monitoring/docs/L8t2_query.png)
+
+### Prometheus config
+
+```yaml
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+# Storage retention (Prometheus 3.x config-based retention)
+storage:
+  tsdb:
+    retention:
+      time: 15d
+      size: 10GB
+
+scrape_configs:
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
+
+  - job_name: 'app'
+    static_configs:
+      - targets: ['devops-infoservice:5000']
+
+  - job_name: 'loki'
+    static_configs:
+      - targets: ['loki:3100']
+
+  - job_name: 'grafana'
+    static_configs:
+      - targets: ['grafana:3000']
+```
+
+# Task 3
+
+### Custom dashboard with panels
+
+![panels](/monitoring/docs/L8t3_custom_dashboard.png)
+
+### JSON dashboard definition
+
+```json
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": {
+          "type": "grafana",
+          "uid": "-- Grafana --"
+        },
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 0,
+  "id": 0,
+  "links": [],
+  "panels": [
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "bfggznoog7gn4c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": 0
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 3,
+        "w": 5,
+        "x": 0,
+        "y": 0
+      },
+      "id": 7,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "percentChangeColorMode": "standard",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "showPercentChange": false,
+        "textMode": "auto",
+        "wideLayout": true
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "editorMode": "code",
+          "expr": "up{job=\"app\"}",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Uptime",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "bfggznoog7gn4c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "barWidthFactor": 0.6,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "showValues": false,
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": 0
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 9,
+        "w": 7,
+        "x": 5,
+        "y": 0
+      },
+      "id": 1,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "hideZeros": false,
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "bfggznoog7gn4c"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(http_requests_total[5m])) by (endpoint)",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Request rate",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "bfggznoog7gn4c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "barWidthFactor": 0.6,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "showValues": false,
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": 0
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 9,
+        "w": 12,
+        "x": 12,
+        "y": 0
+      },
+      "id": 5,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "hideZeros": false,
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "editorMode": "code",
+          "expr": "http_requests_in_progress",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Active requests",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "bfggznoog7gn4c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            }
+          },
+          "mappings": []
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 5,
+        "x": 0,
+        "y": 3
+      },
+      "id": 6,
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "pieType": "pie",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "sort": "desc",
+        "tooltip": {
+          "hideZeros": false,
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "editorMode": "code",
+          "expr": "sum by (status) (rate(http_requests_total[5m]))",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Status code distribution",
+      "type": "piechart"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "bfggznoog7gn4c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "barWidthFactor": 0.6,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "showValues": false,
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": 0
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 9
+      },
+      "id": 3,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "hideZeros": false,
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "editorMode": "code",
+          "expr": "histogram_quantile(0.95, rate(http_request_duration_seconds_bucket[5m]))",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Request duration p95",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "bfggznoog7gn4c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "custom": {
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "scaleDistribution": {
+              "type": "linear"
+            }
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 9
+      },
+      "id": 4,
+      "options": {
+        "calculate": false,
+        "cellGap": 1,
+        "color": {
+          "exponent": 0.5,
+          "fill": "dark-orange",
+          "mode": "scheme",
+          "reverse": false,
+          "scale": "exponential",
+          "scheme": "Oranges",
+          "steps": 64
+        },
+        "exemplars": {
+          "color": "rgba(255,0,255,0.7)"
+        },
+        "filterValues": {
+          "le": 1e-9
+        },
+        "legend": {
+          "show": true
+        },
+        "rowsFrame": {
+          "layout": "auto"
+        },
+        "tooltip": {
+          "mode": "single",
+          "showColorScale": false,
+          "yHistogram": false
+        },
+        "yAxis": {
+          "axisPlacement": "left",
+          "reverse": false
+        }
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "editorMode": "code",
+          "expr": "rate(http_request_duration_seconds_bucket[5m])",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Request duration heatmap",
+      "type": "heatmap"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "bfggznoog7gn4c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "barWidthFactor": 0.6,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "showValues": false,
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": 0
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 17
+      },
+      "id": 2,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "hideZeros": false,
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "editorMode": "code",
+          "expr": "sum(rate(http_requests_total{status=~\"5..\"}[5m]))",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Error rate",
+      "type": "timeseries"
+    }
+  ],
+  "preload": false,
+  "schemaVersion": 42,
+  "tags": [],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "browser",
+  "title": "Prometheus custom",
+  "uid": "adgptz2",
+  "version": 11
+}
+```
+
+# Task 4
+
+Every container is healthy:
+
+![health](/monitoring/docs/L8t4_healthy.png)
+
+# Task 5
+
+**Documentation**. I added everything according to the lab and followed every step. The architecture is as follows:
+
+```text
+[Devops-infoservice] -----------metrics--------> [Prometheus]
+       |                                              |
+     logs                                       query_responses
+       |                                              |
+       v                                              v
+   [Promtail] --logs-> [Loki] --query_responses--> [Grafana]
+```
+
+For further evidence and code listings, see sections above.
diff --git a/monitoring/prometheus/prometheus.yml b/monitoring/prometheus/prometheus.yml
new file mode 100644
index 0000000000..1a516fdca8
--- /dev/null
+++ b/monitoring/prometheus/prometheus.yml
@@ -0,0 +1,27 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+# Storage retention (Prometheus 3.x config-based retention)
+storage:
+  tsdb:
+    retention:
+      time: 15d
+      size: 10GB
+
+scrape_configs:
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
+
+  - job_name: 'app'
+    static_configs:
+      - targets: ['devops-infoservice:5000']
+
+  - job_name: 'loki'
+    static_configs:
+      - targets: ['loki:3100']
+
+  - job_name: 'grafana'
+    static_configs:
+      - targets: ['grafana:3000']