feat(applications): add scalers for cpu and memory

.azure/applications/graphql/main.bicep

@@ -106,6 +106,31 @@ var probes = [
   }
 ]
 
+var scale = {
+  minReplicas: 2
+  maxReplicas: 10
+  rules: [
+    {
+      custom: {
+        type: 'cpu'
+        metricType: 'Utilization'
+        metadata: {
+          value: '70'
+        }
+      }
+    }
+    {
+      custom: {
+        type: 'memory'
+        metricType: 'Utilization'
+        metadata: {
+          value: '70'
+        }
+      }
+    }
+  ]
+}
+
 resource environmentKeyVaultResource 'Microsoft.KeyVault/vaults@2023-07-01' existing = {
   name: environmentKeyVaultName
 }
@@ -126,6 +151,7 @@ module containerApp '../../modules/containerApp/main.bicep' = {
     revisionSuffix: revisionSuffix
     probes: probes
     port: port
+    scale: scale
   }
 }
 

.azure/applications/web-api-eu/main.bicep

@@ -77,6 +77,30 @@ var containerAppEnvVars = [
   }
 ]
 
+var scale = {
+  minReplicas: 2
+  maxReplicas: 10
+  rules: [
+    {
+      custom: {
+        type: 'cpu'
+        metricType: 'Utilization'
+        metadata: {
+          value: '70'
+        }
+      }
+    }
+    {
+      custom: {
+        type: 'memory'
+        metricType: 'Utilization'
+        metadata: {
+          value: '70'
+        }
+      }
+    }
+  ]
+}
 resource environmentKeyVaultResource 'Microsoft.KeyVault/vaults@2023-07-01' existing = {
   name: environmentKeyVaultName
 }
@@ -128,6 +152,7 @@ module containerApp '../../modules/containerApp/main.bicep' = {
     resources: resources
     probes: probes
     revisionSuffix: revisionSuffix
+    scale: scale
   }
 }
 

.azure/modules/containerApp/main.bicep

@@ -31,6 +31,12 @@ param revisionSuffix string
 @description('The probes for the container app')
 param probes array = []
 
+@description('The scaling configuration for the container app')
+param scale object = {
+  minReplicas: 1
+  maxReplicas: 1 // temp disable scaling by default for outbox scheduling
+}
+
 // Container app revision name does not allow '.' character
 var cleanedRevisionSuffix = replace(revisionSuffix, '.', '-')
 
@@ -63,10 +69,7 @@ resource containerApp 'Microsoft.App/containerApps@2024-03-01' = {
     environmentId: containerAppEnvId
     template: {
       revisionSuffix: cleanedRevisionSuffix
-      scale: {
-        minReplicas: 1
-        maxReplicas: 1 // temp disable scaling for outbox scheduling
-      }
+      scale: scale
       containers: [
         {
           name: name