App Service Auto-scaling

Basic Auto-scale Configuration

resource autoScale 'Microsoft.Insights/autoscalesettings@2022-10-01' = {
  name: '${webApp.name}-autoscale'
  location: location
  properties: {
    targetResourceUri: appServicePlan.id
    enabled: true
    profiles: [
      {
        name: 'Auto scale'
        capacity: {
          minimum: '1'
          maximum: '10'
          default: '1'
        }
        rules: [
          {
            metricTrigger: {
              metricName: 'CpuPercentage'
              metricResourceUri: appServicePlan.id
              timeGrain: 'PT1M'
              statistic: 'Average'
              timeWindow: 'PT5M'
              timeAggregation: 'Average'
              operator: 'GreaterThan'
              threshold: 70
            }
            scaleAction: {
              direction: 'Increase'
              type: 'ChangeCount'
              value: '1'
              cooldown: 'PT5M'
            }
          }
        ]
      }
    ]
  }
}

Common Metrics

Recommendations

SKU Requirements

Auto-scaling requires Standard (S1+) or Premium tier.