diff --git a/ansible/playbooks/deploy_all.yml b/ansible/playbooks/deploy_all.yml
index 941f57a575..3150e56193 100644
--- a/ansible/playbooks/deploy_all.yml
+++ b/ansible/playbooks/deploy_all.yml
@@ -3,8 +3,11 @@
   hosts: webservers
   become: true
   gather_facts: true
-
   tasks:
+    - name: Deploy Monitoring Stack
+      ansible.builtin.include_role:
+        name: monitoring
+
     - name: Deploy Python App
       ansible.builtin.include_role:
         name: web_app
@@ -29,4 +32,4 @@
         app_internal_port: 8080
         compose_project_dir: /opt/devops-go
         app_environment:
-          APP_LANG: go
+          APP_LANG: go
\ No newline at end of file
diff --git a/ansible/roles/monitoring/defaults/main.yml b/ansible/roles/monitoring/defaults/main.yml
index a0d8971366..d24c370f58 100644
--- a/ansible/roles/monitoring/defaults/main.yml
+++ b/ansible/roles/monitoring/defaults/main.yml
@@ -29,3 +29,26 @@ promtail_memory_limit: "256m"
 promtail_cpu_limit: "0.5"
 grafana_memory_limit: "512m"
 grafana_cpu_limit: "1.0"
+
+# Prometheus
+prometheus_version: "v3.9.0"
+prometheus_port: 9090
+prometheus_retention_days: "15d"
+prometheus_retention_size: "10GB"
+prometheus_scrape_interval: "15s"
+prometheus_memory_limit: "1g"
+prometheus_cpu_limit: "1.0"
+
+prometheus_scrape_targets:
+  - job: "prometheus"
+    targets: ["localhost:9090"]
+    path: "/metrics"
+  - job: "loki"
+    targets: ["loki:3100"]
+    path: "/metrics"
+  - job: "grafana"
+    targets: ["grafana:3000"]
+    path: "/metrics"
+  - job: "app"
+    targets: ["devops-python:8000:8000"]
+    path: "/metrics"
\ No newline at end of file
diff --git a/ansible/roles/monitoring/files/app-dashboard.json b/ansible/roles/monitoring/files/app-dashboard.json
new file mode 100644
index 0000000000..f5a219c48d
--- /dev/null
+++ b/ansible/roles/monitoring/files/app-dashboard.json
@@ -0,0 +1,534 @@
+{
+  "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": "PBFA97CFB590B2093"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": 0
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 0
+      },
+      "id": 6,
+      "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": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "PBFA97CFB590B2093"
+          },
+          "editorMode": "code",
+          "expr": "up{job=\"app\"}",
+          "instant": false,
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Uptime",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "PBFA97CFB590B2093"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            }
+          },
+          "mappings": []
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 0
+      },
+      "id": 5,
+      "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": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "PBFA97CFB590B2093"
+          },
+          "editorMode": "code",
+          "expr": "sum by (status_code) (rate(http_requests_total[5m]))",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Status Code Distribution",
+      "type": "piechart"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "PBFA97CFB590B2093"
+      },
+      "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": 8
+      },
+      "id": 3,
+      "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": "PBFA97CFB590B2093"
+          },
+          "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": "PBFA97CFB590B2093"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": 0
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 8
+      },
+      "id": 4,
+      "options": {
+        "minVizHeight": 75,
+        "minVizWidth": 75,
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "showThresholdLabels": false,
+        "showThresholdMarkers": true,
+        "sizing": "auto"
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "PBFA97CFB590B2093"
+          },
+          "editorMode": "code",
+          "expr": "http_requests_in_progress",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Active Requests",
+      "type": "gauge"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "PBFA97CFB590B2093"
+      },
+      "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": 16
+      },
+      "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": "PBFA97CFB590B2093"
+          },
+          "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": "PBFA97CFB590B2093"
+      },
+      "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": 12,
+        "y": 16
+      },
+      "id": 2,
+      "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": "PBFA97CFB590B2093"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(http_requests_total{status_code=~\"5..\"}[5m]))",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": " Error Rate",
+      "type": "timeseries"
+    }
+  ],
+  "preload": false,
+  "schemaVersion": 42,
+  "tags": [],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-30m",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "browser",
+  "title": "Prometheus Dashboard",
+  "uid": "admgtq4",
+  "version": 8
+}
\ No newline at end of file
diff --git a/ansible/roles/monitoring/files/dashboards-provisioner.yml b/ansible/roles/monitoring/files/dashboards-provisioner.yml
new file mode 100644
index 0000000000..b18a0c3ba4
--- /dev/null
+++ b/ansible/roles/monitoring/files/dashboards-provisioner.yml
@@ -0,0 +1,11 @@
+apiVersion: 1
+
+providers:
+  - name: default
+    orgId: 1
+    folder: ''
+    type: file
+    disableDeletion: false
+    updateIntervalSeconds: 30
+    options:
+      path: /etc/grafana/provisioning/dashboards
\ No newline at end of file
diff --git a/ansible/roles/monitoring/files/grafana-logs-dashboard.json b/ansible/roles/monitoring/files/grafana-logs-dashboard.json
new file mode 100644
index 0000000000..5ebf689d8e
--- /dev/null
+++ b/ansible/roles/monitoring/files/grafana-logs-dashboard.json
@@ -0,0 +1,288 @@
+{
+  "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": 2,
+  "links": [],
+  "panels": [
+    {
+      "datasource": {
+        "type": "loki",
+        "uid": "P8E80F9AEF21F6940"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            }
+          },
+          "mappings": []
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 0
+      },
+      "id": 4,
+      "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": [
+        {
+          "datasource": {
+            "type": "loki",
+            "uid": "P8E80F9AEF21F6940"
+          },
+          "direction": "backward",
+          "editorMode": "code",
+          "expr": "sum by (level) (count_over_time({app=~\"devops-.*\" } | json [5m]))",
+          "queryType": "range",
+          "refId": "A"
+        }
+      ],
+      "title": "Log Level Distribution",
+      "type": "piechart"
+    },
+    {
+      "datasource": {
+        "type": "loki",
+        "uid": "P8E80F9AEF21F6940"
+      },
+      "fieldConfig": {
+        "defaults": {},
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 0
+      },
+      "id": 1,
+      "options": {
+        "dedupStrategy": "none",
+        "enableInfiniteScrolling": false,
+        "enableLogDetails": true,
+        "showControls": false,
+        "showTime": false,
+        "sortOrder": "Descending",
+        "wrapLogMessage": false
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "datasource": {
+            "type": "loki",
+            "uid": "P8E80F9AEF21F6940"
+          },
+          "direction": "backward",
+          "editorMode": "code",
+          "expr": "{app=~\"devops-.*\"}",
+          "queryType": "range",
+          "refId": "A"
+        }
+      ],
+      "title": "Logs Table",
+      "type": "logs"
+    },
+    {
+      "datasource": {
+        "type": "loki",
+        "uid": "P8E80F9AEF21F6940"
+      },
+      "fieldConfig": {
+        "defaults": {},
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 8
+      },
+      "id": 3,
+      "options": {
+        "dedupStrategy": "none",
+        "enableInfiniteScrolling": false,
+        "enableLogDetails": true,
+        "showControls": false,
+        "showTime": false,
+        "sortOrder": "Descending",
+        "wrapLogMessage": false
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "datasource": {
+            "type": "loki",
+            "uid": "P8E80F9AEF21F6940"
+          },
+          "direction": "backward",
+          "editorMode": "code",
+          "expr": "{app=~\"devops-.*\"} |= \"ERROR\"",
+          "queryType": "range",
+          "refId": "A"
+        }
+      ],
+      "title": "Error Logs",
+      "type": "logs"
+    },
+    {
+      "datasource": {
+        "type": "loki",
+        "uid": "P8E80F9AEF21F6940"
+      },
+      "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": 12,
+        "y": 8
+      },
+      "id": 2,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "hideZeros": false,
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "datasource": {
+            "type": "loki",
+            "uid": "P8E80F9AEF21F6940"
+          },
+          "direction": "backward",
+          "editorMode": "code",
+          "expr": "sum by (app) (rate({app=~\"devops-.*\"}[1m]))",
+          "queryType": "range",
+          "refId": "A"
+        }
+      ],
+      "title": "Request Rate",
+      "type": "timeseries"
+    }
+  ],
+  "preload": false,
+  "schemaVersion": 42,
+  "tags": [],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "browser",
+  "title": "DevOps Apps - Log Overview",
+  "uid": "adwbdg5",
+  "version": 5
+}
\ No newline at end of file
diff --git a/ansible/roles/monitoring/tasks/deploy.yml b/ansible/roles/monitoring/tasks/deploy.yml
index c975e4ccbe..79ad4dd5db 100644
--- a/ansible/roles/monitoring/tasks/deploy.yml
+++ b/ansible/roles/monitoring/tasks/deploy.yml
@@ -28,6 +28,15 @@
       delay: 10
       until: grafana_ready.status == 200
 
+    - name: Wait for Prometheus to be ready
+      ansible.builtin.uri:
+        url: "http://localhost:{{ prometheus_port }}/-/healthy"
+        status_code: 200
+      register: prometheus_ready
+      retries: 12
+      delay: 10
+      until: prometheus_ready.status == 200
+
     - name: Report deployment success
       ansible.builtin.debug:
         msg: "Monitoring stack deployed — Grafana at http://localhost:{{ grafana_port }}"
@@ -53,4 +62,4 @@
 
     - name: Print container status
       ansible.builtin.debug:
-        msg: "{{ compose_ps.stdout_lines }}"
+        msg: "{{ compose_ps.stdout_lines }}"
\ No newline at end of file
diff --git a/ansible/roles/monitoring/tasks/setup.yml b/ansible/roles/monitoring/tasks/setup.yml
index ed15f385ed..9f4ecf461e 100644
--- a/ansible/roles/monitoring/tasks/setup.yml
+++ b/ansible/roles/monitoring/tasks/setup.yml
@@ -12,6 +12,9 @@
         - "{{ monitoring_dir }}"
         - "{{ monitoring_dir }}/loki"
         - "{{ monitoring_dir }}/promtail"
+        - "{{ monitoring_dir }}/prometheus"
+        - "{{ monitoring_dir }}/grafana/provisioning/datasources"
+        - "{{ monitoring_dir }}/grafana/provisioning/dashboards"
 
     - name: Template Loki configuration
       ansible.builtin.template:
@@ -34,6 +37,41 @@
         mode: "0644"
       notify: Restart monitoring stack
 
+    - name: Template Prometheus configuration
+      ansible.builtin.template:
+        src: prometheus-config.yml.j2
+        dest: "{{ monitoring_dir }}/prometheus/prometheus.yml"
+        mode: "0644"
+      notify: Restart monitoring stack
+
+    - name: Template Grafana datasources provisioning
+      ansible.builtin.template:
+        src: grafana-datasources.yml.j2
+        dest: "{{ monitoring_dir }}/grafana/provisioning/datasources/datasources.yml"
+        mode: "0644"
+      notify: Restart monitoring stack
+
+    - name: Copy Grafana dashboard JSON
+      ansible.builtin.copy:
+        src: app-dashboard.json
+        dest: "{{ monitoring_dir }}/grafana/provisioning/dashboards/app-dashboard.json"
+        mode: "0644"
+      notify: Restart monitoring stack
+
+    - name: Copy Grafana logs dashboard JSON
+      ansible.builtin.copy:
+        src: grafana-logs-dashboard.json
+        dest: "{{ monitoring_dir }}/grafana/provisioning/dashboards/grafana-logs-dashboard.json"
+        mode: "0644"
+      notify: Restart monitoring stack
+      
+    - name: Copy Grafana dashboard provisioner config
+      ansible.builtin.copy:
+        src: dashboards-provisioner.yml
+        dest: "{{ monitoring_dir }}/grafana/provisioning/dashboards/dashboards-provisioner.yml"
+        mode: "0644"
+      notify: Restart monitoring stack
+
   rescue:
     - name: Report setup failure
       ansible.builtin.debug:
@@ -48,4 +86,4 @@
 
     - name: Show monitoring directory contents
       ansible.builtin.debug:
-        msg: "{{ monitoring_dir_contents.stdout_lines }}"
+        msg: "{{ monitoring_dir_contents.stdout_lines }}"
\ No newline at end of file
diff --git a/ansible/roles/monitoring/templates/docker-compose.yml.j2 b/ansible/roles/monitoring/templates/docker-compose.yml.j2
index 8985057fe7..69920eb21e 100644
--- a/ansible/roles/monitoring/templates/docker-compose.yml.j2
+++ b/ansible/roles/monitoring/templates/docker-compose.yml.j2
@@ -5,6 +5,7 @@ networks:
 volumes:
   loki-data:
   grafana-data:
+  prometheus-data:
 
 services:
 
@@ -59,6 +60,8 @@ services:
       - "{{ grafana_port }}:3000"
     volumes:
       - grafana-data:/var/lib/grafana
+      - {{ monitoring_dir }}/grafana/provisioning/datasources:/etc/grafana/provisioning/datasources:ro
+      - {{ monitoring_dir }}/grafana/provisioning/dashboards:/etc/grafana/provisioning/dashboards:ro
     environment:
       - GF_AUTH_ANONYMOUS_ENABLED=false
       - GF_SECURITY_ADMIN_USER={{ grafana_admin_user }}
@@ -80,3 +83,33 @@ services:
           cpus: '{{ grafana_cpu_limit }}'
           memory: {{ grafana_memory_limit }}
     restart: unless-stopped
+  
+  prometheus:
+      image: prom/prometheus:{{ prometheus_version }}
+      container_name: prometheus
+      ports:
+        - "{{ prometheus_port }}:9090"
+      volumes:
+        - {{ monitoring_dir }}/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml:ro
+        - prometheus-data:/prometheus
+      command:
+        - '--config.file=/etc/prometheus/prometheus.yml'
+        - '--storage.tsdb.retention.time={{ prometheus_retention_days }}'
+        - '--storage.tsdb.retention.size={{ prometheus_retention_size }}'
+      networks:
+        - logging
+      depends_on:
+        - loki
+        - grafana
+      healthcheck:
+        test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:9090/-/healthy || exit 1"]
+        interval: 10s
+        timeout: 5s
+        retries: 5
+        start_period: 20s
+      deploy:
+        resources:
+          limits:
+            cpus: '{{ prometheus_cpu_limit }}'
+            memory: {{ prometheus_memory_limit }}
+      restart: unless-stopped
\ No newline at end of file
diff --git a/ansible/roles/monitoring/templates/grafana-datasources.yml.j2 b/ansible/roles/monitoring/templates/grafana-datasources.yml.j2
new file mode 100644
index 0000000000..55525a6dd7
--- /dev/null
+++ b/ansible/roles/monitoring/templates/grafana-datasources.yml.j2
@@ -0,0 +1,16 @@
+apiVersion: 1
+
+datasources:
+  - name: Loki
+    type: loki
+    access: proxy
+    url: http://loki:{{ loki_port }}
+    isDefault: false
+    editable: true
+
+  - name: Prometheus
+    type: prometheus
+    access: proxy
+    url: http://prometheus:{{ prometheus_port }}
+    isDefault: true
+    editable: true
\ No newline at end of file
diff --git a/ansible/roles/monitoring/templates/prometheus-config.yml.j2 b/ansible/roles/monitoring/templates/prometheus-config.yml.j2
new file mode 100644
index 0000000000..ac789be904
--- /dev/null
+++ b/ansible/roles/monitoring/templates/prometheus-config.yml.j2
@@ -0,0 +1,11 @@
+global:
+  scrape_interval: {{ prometheus_scrape_interval }}
+  evaluation_interval: {{ prometheus_scrape_interval }}
+
+scrape_configs:
+{% for target in prometheus_scrape_targets %}
+  - job_name: '{{ target.job }}'
+    static_configs:
+      - targets: {{ target.targets }}
+    metrics_path: '{{ target.path }}'
+{% endfor %}
\ No newline at end of file
diff --git a/ansible/roles/web_app/templates/docker-compose.yml.j2 b/ansible/roles/web_app/templates/docker-compose.yml.j2
index 71be74032e..176d9795ff 100644
--- a/ansible/roles/web_app/templates/docker-compose.yml.j2
+++ b/ansible/roles/web_app/templates/docker-compose.yml.j2
@@ -6,6 +6,9 @@ services:
     container_name: {{ app_name }}
     ports:
       - "{{ app_port }}:{{ app_internal_port }}"
+    labels:
+      logging: "promtail"
+      app: "{{ app_name }}"
     environment:
       APP_ENV: production
       APP_PORT: "{{ app_internal_port }}"
@@ -18,6 +21,7 @@ services:
     restart: unless-stopped
     networks:
       - app_network
+      - logging
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:{{ app_internal_port }}/health"]
       interval: 30s
@@ -33,3 +37,6 @@ services:
 networks:
   app_network:
     driver: bridge
+  logging:
+    external: true
+    name: monitoring_logging   
\ No newline at end of file
diff --git a/app_python/app.py b/app_python/app.py
index 94ac357fc8..06dfc1151d 100644
--- a/app_python/app.py
+++ b/app_python/app.py
@@ -1,7 +1,14 @@
 from fastapi import FastAPI, Request
 from datetime import datetime, timezone
-from fastapi.responses import JSONResponse
+from fastapi.responses import JSONResponse, Response
 from starlette.exceptions import HTTPException as StarletteHTTPException
+from prometheus_client import (
+    Counter,
+    Histogram,
+    Gauge,
+    generate_latest,
+    CONTENT_TYPE_LATEST,
+)
 import platform
 import socket
 import os
@@ -57,6 +64,28 @@ def format(self, record: logging.LogRecord) -> str:
 app = FastAPI()
 START_TIME = datetime.now(timezone.utc)
 
+# ── Prometheus Metrics ───────────────────────────────────────────────────────
+http_requests_total = Counter(
+    "http_requests_total",
+    "Total HTTP requests",
+    ["method", "endpoint", "status_code"],
+)
+
+http_request_duration_seconds = Histogram(
+    "http_request_duration_seconds",
+    "HTTP request duration in seconds",
+    ["method", "endpoint"],
+    buckets=[0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1.0, 2.5],
+)
+
+http_requests_in_progress = Gauge(
+    "http_requests_in_progress", "HTTP requests currently being processed"
+)
+
+devops_info_endpoint_calls = Counter(
+    "devops_info_endpoint_calls_total", "Calls per endpoint", ["endpoint"]
+)
+
 HOST = os.getenv("HOST", "0.0.0.0")
 PORT = int(os.getenv("PORT", 8000))
 
@@ -90,8 +119,12 @@ async def log_requests(request: Request, call_next):
     start_time = datetime.now(timezone.utc)
     client_ip = request.client.host if request.client else "unknown"
 
+    # Normalize endpoint (avoid high cardinality)
+    endpoint = request.url.path
+
+    http_requests_in_progress.inc()
     logger.info(
-        f"Request started: {request.method}{request.url.path} from {client_ip}"
+        f"Request started: {request.method} {endpoint} from {client_ip}"
     )
 
     try:
@@ -100,11 +133,24 @@ async def log_requests(request: Request, call_next):
             datetime.now(timezone.utc) - start_time
         ).total_seconds()
 
+        # Record metrics
+        http_requests_total.labels(
+            method=request.method,
+            endpoint=endpoint,
+            status_code=str(response.status_code),
+        ).inc()
+
+        http_request_duration_seconds.labels(
+            method=request.method, endpoint=endpoint
+        ).observe(process_time)
+
+        devops_info_endpoint_calls.labels(endpoint=endpoint).inc()
+
         logger.info(
             "Request completed",
             extra={
                 "method": request.method,
-                "path": request.url.path,
+                "path": endpoint,
                 "status_code": response.status_code,
                 "client_ip": client_ip,
                 "duration_seconds": round(process_time, 3),
@@ -113,21 +159,32 @@ async def log_requests(request: Request, call_next):
 
         response.headers["X-Process-Time"] = str(process_time)
         return response
+
     except Exception as e:
         process_time = (
             datetime.now(timezone.utc) - start_time
         ).total_seconds()
+        http_requests_total.labels(
+            method=request.method, endpoint=endpoint, status_code="500"
+        ).inc()
         logger.error(
             "Request failed",
             extra={
                 "method": request.method,
-                "path": request.url.path,
+                "path": endpoint,
                 "client_ip": client_ip,
                 "duration_seconds": round(process_time, 3),
                 "error": str(e),
             },
         )
         raise
+    finally:
+        http_requests_in_progress.dec()
+
+
+@app.get("/metrics")
+def metrics():
+    return Response(generate_latest(), media_type=CONTENT_TYPE_LATEST)
 
 
 @app.get("/")
diff --git a/app_python/requirements.txt b/app_python/requirements.txt
index 7a8f2f1806..8ed1b51a07 100644
Binary files a/app_python/requirements.txt and b/app_python/requirements.txt differ
diff --git a/monitoring/docker-compose.yml b/monitoring/docker-compose.yml
index b4341bd176..2b582ada92 100644
--- a/monitoring/docker-compose.yml
+++ b/monitoring/docker-compose.yml
@@ -7,7 +7,7 @@ networks:
 volumes:
   loki-data:
   grafana-data:
-
+  prometheus-data:
 services:
 
   loki:
@@ -94,16 +94,29 @@ services:
     restart: unless-stopped
 
   app-python:
-    image: 3llimi/devops-info-service:latest
-    container_name: devops-python
-    ports:
-      - "8000:8000"
-    networks:
-      - logging
-    labels:
-      logging: "promtail"
-      app: "devops-python"
-    restart: unless-stopped
+      image: 3llimi/devops-info-service:latest
+      container_name: devops-python
+      ports:
+        - "8000:8000"
+      networks:
+        - logging
+      labels:
+        logging: "promtail"
+        app: "devops-python"
+      healthcheck:
+        test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:8000/health || exit 1"]
+        interval: 10s
+        timeout: 5s
+        retries: 5
+      deploy:
+        resources:
+          limits:
+            cpus: '0.5'
+            memory: 256M
+          reservations:
+            cpus: '0.1'
+            memory: 64M
+      restart: unless-stopped
 
   app-go:
     image: 3llimi/devops-go-service:latest
@@ -115,4 +128,37 @@ services:
     labels:
       logging: "promtail"
       app: "devops-go"
-    restart: unless-stopped
\ No newline at end of file
+    restart: unless-stopped
+
+  prometheus:
+      image: prom/prometheus:v3.9.0
+      container_name: prometheus
+      ports:
+        - "9090:9090"
+      volumes:
+        - ./prometheus/prometheus.yml:/etc/prometheus/prometheus.yml:ro
+        - prometheus-data:/prometheus
+      command:
+        - '--config.file=/etc/prometheus/prometheus.yml'
+        - '--storage.tsdb.retention.time=15d'
+        - '--storage.tsdb.retention.size=10GB'
+      networks:
+        - logging
+      depends_on:
+        - loki
+        - grafana
+      healthcheck:
+        test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:9090/-/healthy || exit 1"]
+        interval: 10s
+        timeout: 5s
+        retries: 5
+        start_period: 20s
+      deploy:
+        resources:
+          limits:
+            cpus: '1.0'
+            memory: 1G
+          reservations:
+            cpus: '0.25'
+            memory: 256M
+      restart: unless-stopped
\ No newline at end of file
diff --git a/monitoring/docs/LAB08.md b/monitoring/docs/LAB08.md
new file mode 100644
index 0000000000..6b68586bdd
--- /dev/null
+++ b/monitoring/docs/LAB08.md
@@ -0,0 +1,512 @@
+# Lab 8 — Metrics & Monitoring with Prometheus
+
+## Architecture
+
+```
+┌─────────────────────────────────────────────────────────────────┐
+│                     Docker Network: logging                     │
+│                                                                 │
+│  ┌──────────────────┐   /metrics   ┌─────────────────────────┐ │
+│  │  devops-python   │◄─────────────│                         │ │
+│  │  :8000           │              │   Prometheus :9090      │ │
+│  └──────────────────┘              │   TSDB Storage          │ │
+│                                    │   15d retention         │ │
+│  ┌──────────────────┐   /metrics   │                         │ │
+│  │  Loki :3100      │◄─────────────│   scrape interval: 15s  │ │
+│  └──────────────────┘              └───────────┬─────────────┘ │
+│                                                │               │
+│  ┌──────────────────┐   /metrics               │ query         │
+│  │  Grafana :3000   │◄─────────────────────────┘               │
+│  │  Dashboards      │◄── PromQL ───────────────────────────────┤ │
+│  └──────────────────┘                                          │ │
+└─────────────────────────────────────────────────────────────────┘
+```
+
+**How it works:**
+- The Python app exposes a `/metrics` endpoint using `prometheus_client`
+- Prometheus scrapes all four targets every 15 seconds (pull-based model)
+- Metrics are stored in Prometheus TSDB with 15-day retention
+- Grafana queries Prometheus using PromQL and displays dashboards
+
+---
+
+## Application Instrumentation
+
+### Metrics Added
+
+Four metrics were added to the FastAPI app using `prometheus_client==0.23.1`:
+
+```python
+from prometheus_client import Counter, Histogram, Gauge, generate_latest, CONTENT_TYPE_LATEST
+
+http_requests_total = Counter(
+    'http_requests_total',
+    'Total HTTP requests',
+    ['method', 'endpoint', 'status_code']
+)
+
+http_request_duration_seconds = Histogram(
+    'http_request_duration_seconds',
+    'HTTP request duration in seconds',
+    ['method', 'endpoint'],
+    buckets=[0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1.0, 2.5]
+)
+
+http_requests_in_progress = Gauge(
+    'http_requests_in_progress',
+    'HTTP requests currently being processed'
+)
+
+devops_info_endpoint_calls_total = Counter(
+    'devops_info_endpoint_calls_total',
+    'Calls per endpoint',
+    ['endpoint']
+)
+```
+
+### Why These Metrics
+
+| Metric | Type | Purpose |
+|--------|------|---------|
+| `http_requests_total` | Counter | Tracks total requests — used for rate and error rate (RED method) |
+| `http_request_duration_seconds` | Histogram | Measures latency distribution — enables p95/p99 percentiles |
+| `http_requests_in_progress` | Gauge | Live concurrency — detects traffic spikes in real time |
+| `devops_info_endpoint_calls_total` | Counter | Business metric — per-endpoint usage breakdown |
+
+**Label design:** Labels use `method`, `endpoint`, and `status_code` with low cardinality. User IDs, IPs, and query strings are deliberately excluded to avoid cardinality explosion.
+
+### Middleware Implementation
+
+Metrics are recorded in the FastAPI middleware so every request is tracked automatically:
+
+```python
+@app.middleware("http")
+async def log_requests(request: Request, call_next):
+    start_time = datetime.now(timezone.utc)
+    endpoint = request.url.path
+    http_requests_in_progress.inc()
+    try:
+        response = await call_next(request)
+        process_time = (datetime.now(timezone.utc) - start_time).total_seconds()
+        http_requests_total.labels(
+            method=request.method,
+            endpoint=endpoint,
+            status_code=str(response.status_code)
+        ).inc()
+        http_request_duration_seconds.labels(
+            method=request.method,
+            endpoint=endpoint
+        ).observe(process_time)
+        devops_info_endpoint_calls_total.labels(endpoint=endpoint).inc()
+        return response
+    finally:
+        http_requests_in_progress.dec()
+
+@app.get("/metrics")
+def metrics():
+    return Response(generate_latest(), media_type=CONTENT_TYPE_LATEST)
+```
+
+### Metrics Endpoint Output
+
+```
+# HELP http_requests_total Total HTTP requests
+# TYPE http_requests_total counter
+http_requests_total{endpoint="/",method="GET",status_code="200"} 20.0
+http_requests_total{endpoint="/health",method="GET",status_code="200"} 10.0
+http_requests_total{endpoint="/metrics",method="GET",status_code="200"} 2.0
+
+# HELP http_request_duration_seconds HTTP request duration in seconds
+# TYPE http_request_duration_seconds histogram
+http_request_duration_seconds_bucket{endpoint="/",le="0.005",method="GET"} 19.0
+http_request_duration_seconds_bucket{endpoint="/",le="0.01",method="GET"} 20.0
+...
+http_request_duration_seconds_count{endpoint="/",method="GET"} 20.0
+http_request_duration_seconds_sum{endpoint="/",method="GET"} 0.033492999999999995
+
+# HELP http_requests_in_progress HTTP requests currently being processed
+# TYPE http_requests_in_progress gauge
+http_requests_in_progress 1.0
+
+# HELP devops_info_endpoint_calls_total Calls per endpoint
+# TYPE devops_info_endpoint_calls_total counter
+devops_info_endpoint_calls_total{endpoint="/"} 20.0
+devops_info_endpoint_calls_total{endpoint="/health"} 10.0
+devops_info_endpoint_calls_total{endpoint="/metrics"} 2.0
+```
+
+---
+
+## Prometheus Configuration
+
+### `monitoring/prometheus/prometheus.yml`
+
+```yaml
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+scrape_configs:
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
+
+  - job_name: 'app'
+    static_configs:
+      - targets: ['app-python:8000']
+    metrics_path: '/metrics'
+
+  - job_name: 'loki'
+    static_configs:
+      - targets: ['loki:3100']
+    metrics_path: '/metrics'
+
+  - job_name: 'grafana'
+    static_configs:
+      - targets: ['grafana:3000']
+    metrics_path: '/metrics'
+```
+
+### Scrape Targets
+
+| Job | Target | Purpose |
+|-----|--------|---------|
+| `prometheus` | `localhost:9090` | Prometheus self-monitoring |
+| `app` | `app-python:8000` | Python app custom metrics |
+| `loki` | `loki:3100` | Loki internal metrics |
+| `grafana` | `grafana:3000` | Grafana internal metrics |
+
+**Why 15s interval:** Balance between freshness and storage cost. For a dev/course environment, 15s provides enough resolution for dashboards without excessive TSDB writes.
+
+**Why pull-based:** Prometheus scrapes targets on schedule. This means failed scrapes are immediately visible as gaps in data, and apps don't need to know where Prometheus is.
+
+### Retention
+
+Configured via command flags:
+```
+--storage.tsdb.retention.time=15d
+--storage.tsdb.retention.size=10GB
+```
+
+15 days provides enough history for trend analysis while preventing unbounded disk growth.
+
+---
+
+## Dashboard Walkthrough
+
+**Dashboard name:** Prometheus Dashboard  
+**Data source:** Prometheus (`http://prometheus:9090`)
+
+### Panel 1 — Uptime (Stat)
+**Query:** `up{job="app"}`  
+**Purpose:** Shows whether the app is reachable by Prometheus. Value `1` = UP, `0` = DOWN. Instant health indicator at the top of the dashboard.
+
+### Panel 2 — Status Code Distribution (Pie Chart)
+**Query:** `sum by (status_code) (rate(http_requests_total[5m]))`  
+**Purpose:** Visualises the proportion of 2xx vs 4xx vs 5xx responses over the last 5 minutes. All green (200) means the app is healthy.
+
+### Panel 3 — Request Duration p95 (Time Series)
+**Query:** `histogram_quantile(0.95, rate(http_request_duration_seconds_bucket[5m]))`  
+**Purpose:** Shows the 95th percentile latency — 95% of requests complete faster than this value. Observed values around 5–9ms, well within acceptable range.
+
+### Panel 4 — Active Requests (Gauge)
+**Query:** `http_requests_in_progress`  
+**Purpose:** Live count of requests currently being processed. Useful for detecting traffic spikes and concurrency issues.
+
+### Panel 5 — Request Rate (Time Series)
+**Query:** `sum(rate(http_requests_total[5m])) by (endpoint)`  
+**Purpose:** Shows requests per second broken down by endpoint. Covers the **Rate** dimension of the RED method. Three lines: `/`, `/health`, `/metrics`.
+
+### Panel 6 — Error Rate (Time Series)
+**Query:** `sum(rate(http_requests_total{status_code=~"5.."}[5m]))`  
+**Purpose:** Shows the rate of 5xx errors per second. Shows "No data" when the app is healthy — which is the expected result.
+
+---
+
+## PromQL Examples
+
+```promql
+# 1. All targets up/down status
+up
+
+# 2. Request rate per endpoint (RED: Rate)
+sum(rate(http_requests_total[5m])) by (endpoint)
+
+# 3. Error rate — 5xx responses per second (RED: Errors)
+sum(rate(http_requests_total{status_code=~"5.."}[5m]))
+
+# 4. p95 latency across all endpoints (RED: Duration)
+histogram_quantile(0.95, rate(http_request_duration_seconds_bucket[5m]))
+
+# 5. p99 latency per endpoint
+histogram_quantile(0.99, sum by (endpoint, le) (rate(http_request_duration_seconds_bucket[5m])))
+
+# 6. Total request count over last hour
+increase(http_requests_total[1h])
+
+# 7. Average request duration per endpoint
+rate(http_request_duration_seconds_sum[5m]) / rate(http_request_duration_seconds_count[5m])
+
+# 8. Request rate by status code
+sum by (status_code) (rate(http_requests_total[5m]))
+```
+
+---
+
+## Production Setup
+
+### Health Checks
+
+All services have health checks to enable Docker dependency management and visibility:
+
+```yaml
+# Prometheus
+healthcheck:
+  test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:9090/-/healthy || exit 1"]
+  interval: 10s
+  timeout: 5s
+  retries: 5
+  start_period: 20s
+
+# Python app
+healthcheck:
+  test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:8000/health || exit 1"]
+  interval: 10s
+  timeout: 5s
+  retries: 5
+```
+
+### Resource Limits
+
+| Service | CPU Limit | Memory Limit |
+|---------|-----------|--------------|
+| Prometheus | 1.0 | 1G |
+| Loki | 1.0 | 1G |
+| Grafana | 1.0 | 512M |
+| Promtail | 0.5 | 256M |
+| app-python | 0.5 | 256M |
+
+### Retention Policies
+
+| Service | Retention | Config |
+|---------|-----------|--------|
+| Prometheus | 15 days / 10GB | `--storage.tsdb.retention.time=15d` |
+| Loki | 7 days | `retention_period: 168h` in loki config |
+
+### Data Persistence
+
+Named Docker volumes ensure data survives container restarts:
+```yaml
+volumes:
+  prometheus-data:   # Prometheus TSDB
+  loki-data:         # Loki log storage
+  grafana-data:      # Grafana dashboards and config
+```
+
+**Persistence verified:** Stack was stopped with `docker compose down` and restarted with `docker compose up -d`. The Prometheus Dashboard was still present in Grafana after restart.
+
+---
+
+## Testing Results
+
+### All Targets UP
+
+All four Prometheus scrape targets confirmed healthy:
+
+```
+app        http://app-python:8000/metrics    UP  ✅
+grafana    http://grafana:3000/metrics       UP  ✅
+loki       http://loki:3100/metrics          UP  ✅
+prometheus http://localhost:9090/metrics     UP  ✅
+```
+
+![Prometheus Targets — All UP](screenshots/targets-all-up.png)
+
+### PromQL `up` Query — All 4 Targets = 1
+
+![PromQL up query](screenshots/promql-up-query.png)
+
+### Grafana Prometheus Data Source
+
+![Grafana datasource connected](screenshots/grafana-datasource.png)
+
+### Dashboard — All 6 Panels with Live Data
+
+![Prometheus Dashboard](screenshots/dashboard-panels.png)
+
+### Stack Health After Restart
+
+```
+NAME            IMAGE                               STATUS
+devops-go       3llimi/devops-go-service:latest     Up (healthy)
+devops-python   3llimi/devops-info-service:latest   Up (healthy)
+grafana         grafana/grafana:12.3.1              Up (healthy)
+loki            grafana/loki:3.0.0                  Up (healthy)
+prometheus      prom/prometheus:v3.9.0              Up (healthy)
+promtail        grafana/promtail:3.0.0              Up
+```
+
+### Dashboard Persisted After Restart
+
+![Dashboard after restart](screenshots/dashboard-persistence.png)
+
+---
+
+## Bonus — Ansible Automation
+
+### Updated Role Structure
+
+```
+roles/monitoring/
+├── defaults/main.yml           # All variables including Prometheus
+├── meta/main.yml               # Depends on: docker role
+├── handlers/main.yml           # Restart stack on config change
+├── files/
+│   ├── app-dashboard.json           # Metrics dashboard
+│   ├── grafana-logs-dashboard.json  # Logs dashboard
+│   └── dashboards-provisioner.yml
+├── tasks/
+│   ├── main.yml                # Orchestrates setup + deploy
+│   ├── setup.yml               # Dirs, templates, files
+│   └── deploy.yml              # docker compose up + health waits
+└── templates/
+    ├── docker-compose.yml.j2
+    ├── loki-config.yml.j2
+    ├── promtail-config.yml.j2
+    ├── prometheus-config.yml.j2    # NEW
+    └── grafana-datasources.yml.j2  # NEW
+```
+
+### New Variables (`defaults/main.yml`)
+
+```yaml
+# Prometheus
+prometheus_version: "v3.9.0"
+prometheus_port: 9090
+prometheus_retention_days: "15d"
+prometheus_retention_size: "10GB"
+prometheus_scrape_interval: "15s"
+prometheus_memory_limit: "1g"
+prometheus_cpu_limit: "1.0"
+
+prometheus_scrape_targets:
+  - job: "prometheus"
+    targets: ["localhost:9090"]
+    path: "/metrics"
+  - job: "loki"
+    targets: ["loki:3100"]
+    path: "/metrics"
+  - job: "grafana"
+    targets: ["grafana:3000"]
+    path: "/metrics"
+  - job: "app"
+    targets: ["app-python:8000"]
+    path: "/metrics"
+```
+
+### Templated Prometheus Config (`prometheus-config.yml.j2`)
+
+```yaml
+global:
+  scrape_interval: {{ prometheus_scrape_interval }}
+  evaluation_interval: {{ prometheus_scrape_interval }}
+
+scrape_configs:
+{% for target in prometheus_scrape_targets %}
+  - job_name: '{{ target.job }}'
+    static_configs:
+      - targets: {{ target.targets }}
+    metrics_path: '{{ target.path }}'
+{% endfor %}
+```
+
+### Grafana Datasource Provisioning (`grafana-datasources.yml.j2`)
+
+```yaml
+apiVersion: 1
+
+datasources:
+  - name: Loki
+    type: loki
+    access: proxy
+    url: http://loki:{{ loki_port }}
+    isDefault: false
+    editable: true
+
+  - name: Prometheus
+    type: prometheus
+    access: proxy
+    url: http://prometheus:{{ prometheus_port }}
+    isDefault: true
+    editable: true
+```
+
+### First Run Evidence
+
+```
+TASK [monitoring : Template Docker Compose file]       changed: [localhost]
+TASK [monitoring : Template Prometheus configuration]  changed: [localhost]
+TASK [monitoring : Template Grafana datasources]       changed: [localhost]
+TASK [monitoring : Copy Grafana dashboard JSON]        changed: [localhost]
+TASK [monitoring : Copy Grafana logs dashboard JSON]   changed: [localhost]
+TASK [monitoring : Deploy monitoring stack]            changed: [localhost]
+
+PLAY RECAP
+localhost : ok=32  changed=3  unreachable=0  failed=0  skipped=0  rescued=0  ignored=0
+```
+
+### Second Run — Idempotency Evidence
+
+```
+PLAY RECAP
+localhost : ok=31  changed=0  unreachable=0  failed=0  skipped=0  rescued=0  ignored=0
+```
+
+`changed=0` on second run confirms full idempotency ✅
+
+---
+
+## Metrics vs Logs — When to Use Each
+
+| Scenario | Use |
+|----------|-----|
+| "How many requests/sec is the app handling?" | Metrics (rate counter) |
+| "Why did this specific request fail at 14:32?" | Logs (structured JSON) |
+| "Is p95 latency within SLA?" | Metrics (histogram) |
+| "What was the exact error message for user X?" | Logs (field filter) |
+| "Is the service up right now?" | Metrics (`up` gauge) |
+| "What sequence of events led to this crash?" | Logs (correlated trace) |
+
+**Together:** Metrics alert you that something is wrong; logs tell you exactly what happened and why.
+
+---
+
+## Challenges & Solutions
+
+**Challenge 1: Docker image 404 on app `/metrics`**
+The running container was using the old image without the metrics endpoint. Fixed by rebuilding with `docker build`, pushing to Docker Hub, and force-recreating the container with `docker compose up -d --force-recreate app-python`.
+
+![App target DOWN before fix](screenshots/targets-app-down.png)
+
+**Challenge 2: Prometheus image tag `3.9.0` not found**
+Docker Hub uses the `v` prefix for Prometheus tags (`v3.9.0` not `3.9.0`). The Ansible variable was updated to `"v3.9.0"` to match the actual tag.
+
+
+---
+
+## Summary
+
+| Component | Version | Purpose |
+|-----------|---------|---------|
+| Prometheus | v3.9.0 | Metrics scraping and TSDB storage |
+| Grafana | 12.3.1 | Visualization and dashboards |
+| Loki | 3.0.0 | Log storage (from Lab 7) |
+| Promtail | 3.0.0 | Log collection (from Lab 7) |
+| prometheus_client | 0.23.1 | Python app instrumentation |
+
+**Key results:**
+- Scrape targets: 4 (all UP)
+- Dashboard panels: 6
+- Metrics implemented: Counter × 2, Histogram × 1, Gauge × 1
+- Retention: 15 days / 10GB (Prometheus), 7 days (Loki)
+- Ansible idempotency: ✅ confirmed (`changed=0` on second run)
\ No newline at end of file
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new file mode 100644
index 0000000000..cc412211dd
--- /dev/null
+++ b/monitoring/grafana/dashboards/app-dashboard.json
@@ -0,0 +1,534 @@
+{
+  "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": "cff932sxwmps0e"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": 0
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 0
+      },
+      "id": 6,
+      "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": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "cff932sxwmps0e"
+          },
+          "editorMode": "code",
+          "expr": "up{job=\"app\"}",
+          "instant": false,
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Uptime",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "cff932sxwmps0e"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            }
+          },
+          "mappings": []
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 0
+      },
+      "id": 5,
+      "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": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "cff932sxwmps0e"
+          },
+          "editorMode": "code",
+          "expr": "sum by (status_code) (rate(http_requests_total[5m]))",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Status Code Distribution",
+      "type": "piechart"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "cff932sxwmps0e"
+      },
+      "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": 8
+      },
+      "id": 3,
+      "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": "cff932sxwmps0e"
+          },
+          "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": "cff932sxwmps0e"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": 0
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 8
+      },
+      "id": 4,
+      "options": {
+        "minVizHeight": 75,
+        "minVizWidth": 75,
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "showThresholdLabels": false,
+        "showThresholdMarkers": true,
+        "sizing": "auto"
+      },
+      "pluginVersion": "12.3.1",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "cff932sxwmps0e"
+          },
+          "editorMode": "code",
+          "expr": "http_requests_in_progress",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Active Requests",
+      "type": "gauge"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "cff932sxwmps0e"
+      },
+      "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": 16
+      },
+      "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": "cff932sxwmps0e"
+          },
+          "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": "cff932sxwmps0e"
+      },
+      "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": 12,
+        "y": 16
+      },
+      "id": 2,
+      "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": "cff932sxwmps0e"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(http_requests_total{status_code=~\"5..\"}[5m]))",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": " Error Rate",
+      "type": "timeseries"
+    }
+  ],
+  "preload": false,
+  "schemaVersion": 42,
+  "tags": [],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-30m",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "browser",
+  "title": "Prometheus Dashboard",
+  "uid": "admgtq4",
+  "version": 8
+}
\ No newline at end of file
diff --git a/monitoring/prometheus/prometheus.yml b/monitoring/prometheus/prometheus.yml
new file mode 100644
index 0000000000..a37795ae6a
--- /dev/null
+++ b/monitoring/prometheus/prometheus.yml
@@ -0,0 +1,23 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+scrape_configs:
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
+
+  - job_name: 'app'
+    static_configs:
+      - targets: ['app-python:8000']
+    metrics_path: '/metrics'
+
+  - job_name: 'loki'
+    static_configs:
+      - targets: ['loki:3100']
+    metrics_path: '/metrics'
+
+  - job_name: 'grafana'
+    static_configs:
+      - targets: ['grafana:3000']
+    metrics_path: '/metrics'
\ No newline at end of file