Cloud Digital Leader Scaling with Google Cloud operations — All Questions With Answers

gcloud compute instance-groups managed list --zone us-central1-a
NAME          LOCATION       SCOPE  BASE_INSTANCE_NAME  SIZE  TARGET_SIZE  INSTANCE_TEMPLATE  AUTOSCALED
my-mig        us-central1-a  zone   my-instance         10    20           my-template         yes

{
  "displayName": "High Error Rate",
  "condition": {
    "conditionThreshold": {
      "filter": "metric.type=\"logging.googleapis.com/user/myapp_errors\" AND resource.type=\"k8s_container\"",
      "aggregations": [
        {
          "alignmentPeriod": "60s",
          "perSeriesAligner": "ALIGN_RATE"
        }
      ],
      "comparison": "COMPARISON_GT",
      "thresholdValue": 5,
      "trigger": {
        "count": 1
      }
    }
  },
  "alertStrategy": {
    "autoClose": "1800s"
  }
}

{
  "metric": {
    "type": "custom.googleapis.com/inventory/items_sold",
    "labels": {}
  },
  "resource": {
    "type": "global",
    "labels": {
      "project_id": "my-project"
    }
  },
  "points": [
    {
      "interval": {
        "endTime": "2023-01-01T12:00:00Z"
      },
      "value": {
        "int64Value": "100"
      }
    }
  ],
  "metricKind": "GAUGE",
  "valueType": "INT64"
}

{
  "displayName": "High CPU Alert",
  "condition": {
    "conditionThreshold": {
      "aggregations": [
        {
          "alignmentPeriod": "60s",
          "perSeriesAligner": "ALIGN_RATE",
          "crossSeriesReducer": "REDUCE_NONE"
        }
      ],
      "comparison": "COMPARISON_GT",
      "duration": "300s",
      "filter": "metric.type=\"compute.googleapis.com/instance/cpu/utilization\" resource.type=\"gce_instance\"",
      "thresholdValue": 0.8,
      "trigger": {
        "count": 1
      }
    }
  },
  "enabled": true
}

apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: hello
spec:
  template:
    metadata:
      autoscaling.knative.dev/maxScale: "10"
      autoscaling.knative.dev/minScale: "2"
    spec:
      containerConcurrency: 80
      containers:
      - image: us-docker.pkg.dev/cloudrun/container/hello
        resources:
          limits:
            cpu: "1"
            memory: "256Mi"

Refer to the exhibit.

```json
{
  "insertId": "1a2b3c4d5e",
  "jsonPayload": {
    "status": "SCALING_UP",
    "instanceGroup": "my-mig",
    "targetSize": 10,
    "currentSize": 5,
    "reason": "AutoScaler triggered by CPU utilization > 80% for 5 minutes"
  },
  "resource": {
    "type": "gce_instance_group",
    "labels": {
      "instance_group_name": "my-mig",
      "zone": "us-central1-a"
    }
  },
  "severity": "INFO",
  "timestamp": "2025-02-15T14:30:00Z"
}
```