add k8s practice materials

hsnlab · Nov 6, 2024 · 02a5260 · 02a5260
1 parent c83ab18
commit 02a5260
Show file tree

Hide file tree

Showing 16 changed files with 593 additions and 1 deletion.
diff --git a/.gitignore b/.gitignore
@@ -1 +1,2 @@
-hidden_*
+hidden_*
+node_modules
diff --git a/k8s-autoscaling/deployments/fortio/gen_load.sh b/k8s-autoscaling/deployments/fortio/gen_load.sh
@@ -0,0 +1,4 @@
+#kubectl create -f https://raw.githubusercontent.com/verfio/fortio-operator/master/deploy/fortio.yaml
+
+echo "start sending requests"
+kubectl run -i --tty load-generator --rm --image=docker.io/fortio/fortio --restart=Never -- load -allow-initial-errors -qps $1 -t 0 -connection-reuse 0:0 -c 32 - http://demo-webserver:8080
diff --git a/k8s-autoscaling/deployments/grafana/config.yaml b/k8s-autoscaling/deployments/grafana/config.yaml
@@ -0,0 +1,3 @@
+service:
+  type: NodePort
+  nodePort: 30002
diff --git a/k8s-autoscaling/deployments/grafana/deploy.sh b/k8s-autoscaling/deployments/grafana/deploy.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+helm repo add grafana https://grafana.github.io/helm-charts
+helm install grafana grafana/grafana -n monitoring --values config.yaml
+echo "Login data:"
+kubectl get secret --namespace monitoring grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo
diff --git a/k8s-autoscaling/deployments/grafana/service-dashboard.json b/k8s-autoscaling/deployments/grafana/service-dashboard.json
@@ -0,0 +1,336 @@
+{
+  "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": 5,
+  "links": [],
+  "liveNow": false,
+  "panels": [
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "d5414744-c248-426b-b9d7-e66f3bd8de8c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "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",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 7,
+        "w": 24,
+        "x": 0,
+        "y": 0
+      },
+      "id": 5,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "d5414744-c248-426b-b9d7-e66f3bd8de8c"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(seminar_http_requests_total{kubernetes_pod_name=~\"demo-webserver.*\"}[2m])) by (kubernetes_pod_name)",
+          "instant": false,
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "AVG HTTP Requests/s",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "d5414744-c248-426b-b9d7-e66f3bd8de8c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "fixedColor": "orange",
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "smooth",
+            "lineStyle": {
+              "fill": "solid"
+            },
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 24,
+        "x": 0,
+        "y": 7
+      },
+      "id": 2,
+      "maxDataPoints": 100,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "10.1.5",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "d5414744-c248-426b-b9d7-e66f3bd8de8c"
+          },
+          "disableTextWrap": false,
+          "editorMode": "code",
+          "expr": "sum by(pod) (rate(container_cpu_usage_seconds_total{pod=~\"demo-webserver.*\"}[2m])) *1000",
+          "format": "time_series",
+          "fullMetaSearch": false,
+          "includeNullMetadata": true,
+          "intervalFactor": 1,
+          "legendFormat": "",
+          "range": true,
+          "refId": "A",
+          "useBackend": false
+        }
+      ],
+      "title": "CPU Usage",
+      "transformations": [],
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "d5414744-c248-426b-b9d7-e66f3bd8de8c"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "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",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 24,
+        "x": 0,
+        "y": 15
+      },
+      "id": 4,
+      "maxDataPoints": 100,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "10.1.5",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "d5414744-c248-426b-b9d7-e66f3bd8de8c"
+          },
+          "editorMode": "code",
+          "expr": "sum by (pod) (rate(container_memory_usage_bytes{pod=~\"demo-webserver.*\"}[2m])) / 1024",
+          "format": "time_series",
+          "intervalFactor": 1,
+          "legendFormat": "",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Memory Usage",
+      "type": "timeseries"
+    }
+  ],
+  "refresh": "5s",
+  "schemaVersion": 38,
+  "style": "dark",
+  "tags": [],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-5m",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "",
+  "title": "Demo Webserver",
+  "uid": "c19c0e7e-18c9-424f-95e9-66abcaeb62e4",
+  "version": 10,
+  "weekStart": ""
+}
diff --git a/k8s-autoscaling/deployments/prometheus/config.yaml b/k8s-autoscaling/deployments/prometheus/config.yaml
@@ -0,0 +1,31 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+alertmanager:
+  enabled: false
+kube-state-metrics:
+  enabled: true
+prometheus-node-exporter:
+  enabled: true
+prometheus-pushgateway:
+  enabled: false
+server:
+  service:
+    type: NodePort
+    nodePort: 30001
+extraScrapeConfigs: >
+  - job_name: demo-webserver
+    kubernetes_sd_configs:
+      - role: pod
+    relabel_configs:
+      - source_labels: [__meta_kubernetes_pod_label_app]
+        action: keep
+        regex: demo-webserver
+      - source_labels: [__meta_kubernetes_namespace]
+        action: replace
+        target_label: kubernetes_namespace
+      - source_labels: [__meta_kubernetes_pod_name]
+        action: replace
+        target_label: kubernetes_pod_name
+    static_configs:
+      - targets: ['localhost:8080']
diff --git a/k8s-autoscaling/deployments/prometheus/deploy.sh b/k8s-autoscaling/deployments/prometheus/deploy.sh
@@ -0,0 +1,3 @@
+helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
+helm repo update
+helm install prometheus prometheus-community/prometheus --values config.yaml -n monitoring
diff --git a/k8s-autoscaling/deployments/prometheus/forward.sh b/k8s-autoscaling/deployments/prometheus/forward.sh
@@ -0,0 +1,2 @@
+sudo ufw allow 30001
+kubectl port-forward svc/prometheus-server -n monitoring --address 0.0.0.0 30001:80
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		sudo ufw allow 30001
		kubectl port-forward svc/prometheus-server -n monitoring --address 0.0.0.0 30001:80