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Change application port from 8080 to 9090 #331

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@jameslaneovermind
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Update the Tomcat application port configuration to use port 9090 instead of 8080. This change affects:

  • ECS task definition container port mappings
  • Load balancer target group health checks
  • Security group ingress rules
  • ALB listener configurations

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github-actions bot commented Oct 28, 2025 •
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Open in Overmind ↗

model|risks_v6

🔴 Change Signals

Policies 🔴 ▃▂▁ Multiple S3 buckets and security groups are showing unusual configurations, including missing server-side encryption and required tags, and allowing SSH access from anywhere, which may need review.
Cost 🟢 ▁ Cost analysis shows a monthly decrease of $14.61 (-5.3%) from $274.11 to $259.50 USD across 119 resources, maintaining typical patterns.
Routine 🟢 ▁ Multiple AWS resources are showing regular updates with 1 event/week for the last 4-5 weeks, indicating routine maintenance across the system.

View signals ↗

🔥 Risks

[!NOTE] > Overmind has not identified any risks associated with this change
This could be due to the change being low risk with no impact on other parts of the system, or involving resources that Overmind currently does not support.

🟣 Expected Changes

+/- ec2-instance › i-01dcfcab37ba22689 
--- current
+++ proposed
@@ -2,61 +2,52 @@
 id: github.com/overmindtech/terraform-example.ec2-instance.module.scenarios[0].aws_instance.app_server
 attributes:
-  ami: ami-0f802dc0fc1809acd
-  arn: arn:aws:ec2:eu-west-2:540044833068:instance/i-01dcfcab37ba22689
+  ami: ami-0ca1753a2af8d9bbf
+  arn: (known after apply)
   associate_public_ip_address: true
-  availability_zone: eu-west-2b
-  capacity_reservation_specification:
-    - capacity_reservation_preference: open
-  cpu_core_count: 1
-  cpu_options:
-    - core_count: 1
-      threads_per_core: 2
-  cpu_threads_per_core: 2
-  credit_specification:
-    - cpu_credits: unlimited
-  disable_api_stop: false
-  disable_api_termination: false
-  ebs_optimized: false
-  enable_primary_ipv6: null
-  enclave_options:
-    - enabled: false
+  availability_zone: (known after apply)
+  capacity_reservation_specification: (known after apply)
+  cpu_core_count: (known after apply)
+  cpu_options: (known after apply)
+  cpu_threads_per_core: (known after apply)
+  disable_api_stop: (known after apply)
+  disable_api_termination: (known after apply)
+  ebs_block_device: (known after apply)
+  ebs_optimized: (known after apply)
+  enable_primary_ipv6: (known after apply)
+  enclave_options: (known after apply)
+  ephemeral_block_device: (known after apply)
   get_password_data: false
-  hibernation: false
-  host_resource_group_arn: null
-  id: i-01dcfcab37ba22689
-  instance_initiated_shutdown_behavior: stop
-  instance_state: running
+  hibernation: null
+  host_id: (known after apply)
+  host_resource_group_arn: (known after apply)
+  iam_instance_profile: (known after apply)
+  id: (known after apply)
+  instance_initiated_shutdown_behavior: (known after apply)
+  instance_lifecycle: (known after apply)
+  instance_market_options: (known after apply)
+  instance_state: (known after apply)
   instance_type: t3.small
-  ipv6_address_count: 0
+  ipv6_address_count: (known after apply)
+  ipv6_addresses: (known after apply)
   key_name: Demo Key Pair
-  maintenance_options:
-    - auto_recovery: default
-  metadata_options:
-    - http_endpoint: enabled
-      http_protocol_ipv6: disabled
-      http_put_response_hop_limit: 1
-      http_tokens: optional
-      instance_metadata_tags: disabled
-  monitoring: false
-  placement_partition_number: 0
-  primary_network_interface_id: eni-0501ad33e98bb6f8c
-  private_dns: ip-10-0-10-239.eu-west-2.compute.internal
-  private_dns_name_options:
-    - enable_resource_name_dns_a_record: false
-      enable_resource_name_dns_aaaa_record: false
-      hostname_type: ip-name
-  private_ip: 10.0.10.239
-  public_dns: ec2-13-41-66-30.eu-west-2.compute.amazonaws.com
-  public_ip: 13.41.66.30
-  root_block_device:
-    - delete_on_termination: true
-      device_name: /dev/xvda
-      encrypted: false
-      iops: 0
-      throughput: 0
-      volume_id: vol-011ca7661217b5823
-      volume_size: 8
-      volume_type: standard
+  maintenance_options: (known after apply)
+  metadata_options: (known after apply)
+  monitoring: (known after apply)
+  network_interface: (known after apply)
+  outpost_arn: (known after apply)
+  password_data: (known after apply)
+  placement_group: (known after apply)
+  placement_partition_number: (known after apply)
+  primary_network_interface_id: (known after apply)
+  private_dns: (known after apply)
+  private_dns_name_options: (known after apply)
+  private_ip: (known after apply)
+  public_dns: (known after apply)
+  public_ip: (known after apply)
+  root_block_device: (known after apply)
+  secondary_private_ips: (known after apply)
+  security_groups: (known after apply)
   source_dest_check: true
+  spot_instance_request_id: (known after apply)
   subnet_id: subnet-036704734045071f9
   tags:
@@ -64,10 +50,10 @@
   tags_all:
     Name: App Server
-  tenancy: default
+  tenancy: (known after apply)
   terraform_address: module.scenarios[0].aws_instance.app_server
   terraform_name: module.scenarios[0].aws_instance.app_server
   timeouts: null
-  user_data: null
-  user_data_base64: null
+  user_data: (known after apply)
+  user_data_base64: (known after apply)
   user_data_replace_on_change: false
   volume_tags: null
+/- ec2-instance › i-02f292e8a0766d313 
--- current
+++ proposed
@@ -2,61 +2,52 @@
 id: github.com/overmindtech/terraform-example.ec2-instance.module.scenarios[0].aws_instance.webserver
 attributes:
-  ami: ami-0f802dc0fc1809acd
-  arn: arn:aws:ec2:eu-west-2:540044833068:instance/i-02f292e8a0766d313
+  ami: ami-0ca1753a2af8d9bbf
+  arn: (known after apply)
   associate_public_ip_address: true
-  availability_zone: eu-west-2a
-  capacity_reservation_specification:
-    - capacity_reservation_preference: open
-  cpu_core_count: 1
-  cpu_options:
-    - core_count: 1
-      threads_per_core: 2
-  cpu_threads_per_core: 2
-  credit_specification:
-    - cpu_credits: unlimited
-  disable_api_stop: false
-  disable_api_termination: false
-  ebs_optimized: false
-  enable_primary_ipv6: null
-  enclave_options:
-    - enabled: false
+  availability_zone: (known after apply)
+  capacity_reservation_specification: (known after apply)
+  cpu_core_count: (known after apply)
+  cpu_options: (known after apply)
+  cpu_threads_per_core: (known after apply)
+  disable_api_stop: (known after apply)
+  disable_api_termination: (known after apply)
+  ebs_block_device: (known after apply)
+  ebs_optimized: (known after apply)
+  enable_primary_ipv6: (known after apply)
+  enclave_options: (known after apply)
+  ephemeral_block_device: (known after apply)
   get_password_data: false
-  hibernation: false
-  host_resource_group_arn: null
-  id: i-02f292e8a0766d313
-  instance_initiated_shutdown_behavior: stop
-  instance_state: running
+  hibernation: null
+  host_id: (known after apply)
+  host_resource_group_arn: (known after apply)
+  iam_instance_profile: (known after apply)
+  id: (known after apply)
+  instance_initiated_shutdown_behavior: (known after apply)
+  instance_lifecycle: (known after apply)
+  instance_market_options: (known after apply)
+  instance_state: (known after apply)
   instance_type: t3.small
-  ipv6_address_count: 0
+  ipv6_address_count: (known after apply)
+  ipv6_addresses: (known after apply)
   key_name: Demo Key Pair
-  maintenance_options:
-    - auto_recovery: default
-  metadata_options:
-    - http_endpoint: enabled
-      http_protocol_ipv6: disabled
-      http_put_response_hop_limit: 1
-      http_tokens: optional
-      instance_metadata_tags: disabled
-  monitoring: false
-  placement_partition_number: 0
-  primary_network_interface_id: eni-0784f95b7ff052c6b
-  private_dns: ip-10-0-9-25.eu-west-2.compute.internal
-  private_dns_name_options:
-    - enable_resource_name_dns_a_record: false
-      enable_resource_name_dns_aaaa_record: false
-      hostname_type: ip-name
-  private_ip: 10.0.9.25
-  public_dns: ec2-13-40-28-149.eu-west-2.compute.amazonaws.com
-  public_ip: 13.40.28.149
-  root_block_device:
-    - delete_on_termination: true
-      device_name: /dev/xvda
-      encrypted: false
-      iops: 0
-      throughput: 0
-      volume_id: vol-0bc99e157a38768b6
-      volume_size: 8
-      volume_type: standard
+  maintenance_options: (known after apply)
+  metadata_options: (known after apply)
+  monitoring: (known after apply)
+  network_interface: (known after apply)
+  outpost_arn: (known after apply)
+  password_data: (known after apply)
+  placement_group: (known after apply)
+  placement_partition_number: (known after apply)
+  primary_network_interface_id: (known after apply)
+  private_dns: (known after apply)
+  private_dns_name_options: (known after apply)
+  private_ip: (known after apply)
+  public_dns: (known after apply)
+  public_ip: (known after apply)
+  root_block_device: (known after apply)
+  secondary_private_ips: (known after apply)
+  security_groups: (known after apply)
   source_dest_check: true
+  spot_instance_request_id: (known after apply)
   subnet_id: subnet-06302fc5a50644cd9
   tags:
@@ -64,10 +50,10 @@
   tags_all:
     Name: Webserver
-  tenancy: default
+  tenancy: (known after apply)
   terraform_address: module.scenarios[0].aws_instance.webserver
   terraform_name: module.scenarios[0].aws_instance.webserver
   timeouts: null
-  user_data: null
-  user_data_base64: null
+  user_data: (known after apply)
+  user_data_base64: (known after apply)
   user_data_replace_on_change: false
   volume_tags: null
~ ec2-launch-template › lt-0731f767e6be2ab94 
--- current
+++ proposed
@@ -7,7 +7,7 @@
   disable_api_termination: false
   id: lt-0731f767e6be2ab94
-  image_id: ami-0f802dc0fc1809acd
+  image_id: ami-0ca1753a2af8d9bbf
   instance_type: t3.micro
-  latest_version: 20
+  latest_version: (known after apply)
   name: asg-change-launch-template-terraform-example20240827194210168200000007
   name_prefix: asg-change-launch-template-terraform-example
~ rds-db-cluster › facial-recognition-terraform-example 
--- current
+++ proposed
@@ -33,5 +33,5 @@
   engine_lifecycle_support: open-source-rds-extended-support
   engine_mode: provisioned
-  engine_version: "16.8"
+  engine_version: "16.6"
   engine_version_actual: "16.8"
   final_snapshot_identifier: test
~ cloudwatch-alarm › scenarios--a3ec77f7-high-cpu 
--- current
+++ proposed
@@ -27,12 +27,12 @@
     JVMBehavior: CPU-spikes-before-OOM
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     MemoryThrashing: frequent-GC-when-constrained
     Name: scenarios--a3ec77f7-cpu-alarm
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tags_all:
@@ -44,12 +39,12 @@
     JVMBehavior: CPU-spikes-before-OOM
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     MemoryThrashing: frequent-GC-when-constrained
     Name: scenarios--a3ec77f7-cpu-alarm
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   terraform_address: module.scenarios[0].module.memory_optimization.aws_cloudwatch_metric_alarm.high_cpu_utilization[0]
~ cloudwatch-alarm › scenarios--a3ec77f7-high-memory 
--- current
+++ proposed
@@ -23,5 +23,5 @@
   tags:
     AlarmTrigger: memory-over-80-percent
-    ContainerMemoryMB: "2048"
+    ContainerMemoryMB: "1024"
     CreatedBy: terraform
     DaysUntilBF: "7"
@@ -29,16 +29,16 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-memory-alarm
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
-    WillFireAfterChange: "false"
+    WillFireAfterChange: "true"
   tags_all:
     AlarmTrigger: memory-over-80-percent
-    ContainerMemoryMB: "2048"
+    ContainerMemoryMB: "1024"
     CreatedBy: terraform
     DaysUntilBF: "7"
@@ -46,13 +39,13 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-memory-alarm
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
-    WillFireAfterChange: "false"
+    WillFireAfterChange: "true"
   terraform_address: module.scenarios[0].module.memory_optimization.aws_cloudwatch_metric_alarm.high_memory_utilization[0]
   terraform_name: module.scenarios[0].module.memory_optimization.aws_cloudwatch_metric_alarm.high_memory_utilization[0]
~ cloudwatch-alarm › scenarios--a3ec77f7-low-task-count 
--- current
+++ proposed
@@ -30,11 +30,11 @@
     ExpectedTasks: "3"
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-task-count-alarm
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     ThresholdTasks: "2.4"
@@ -48,11 +44,11 @@
     ExpectedTasks: "3"
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-task-count-alarm
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     ThresholdTasks: "2.4"
~ cloudwatch-alarm › scenarios--a3ec77f7-unhealthy-targets 
--- current
+++ proposed
@@ -10,7 +10,5 @@
   comparison_operator: GreaterThanThreshold
   datapoints_to_alarm: 0
-  dimensions:
-    LoadBalancer: app/scenarios--a3ec77f7-alb/a0268d67b29039c7
-    TargetGroup: targetgroup/scenarios--a3ec77f7-tg/202d88113aa8b778
+  dimensions: (known after apply)
   evaluation_periods: 2
   id: scenarios--a3ec77f7-unhealthy-targets
@@ -27,11 +25,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-unhealthy-targets-alarm
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     RollbackCapability: insufficient
     Scenario: cost-reduction
@@ -45,11 +39,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-unhealthy-targets-alarm
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     RollbackCapability: insufficient
     Scenario: cost-reduction
~ ecs-cluster › scenarios--a3ec77f7-cluster 
--- current
+++ proposed
@@ -14,11 +14,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-cluster
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tags_all:
@@ -28,11 +24,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-cluster
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   terraform_address: module.scenarios[0].module.memory_optimization.aws_ecs_cluster.main[0]
+/- ecs-task-definition › scenarios--a3ec77f7-task 
--- current
+++ proposed
@@ -2,20 +2,22 @@
 id: github.com/overmindtech/terraform-example.ecs-task-definition.module.scenarios[0].module.memory_optimization.aws_ecs_task_definition.app[0]
 attributes:
-  arn: arn:aws:ecs:eu-west-2:540044833068:task-definition/scenarios--a3ec77f7-task:2
-  arn_without_revision: arn:aws:ecs:eu-west-2:540044833068:task-definition/scenarios--a3ec77f7-task
-  container_definitions: '[{"environment":[{"name":"CATALINA_OPTS","value":"-Djava.security.egd=file:/dev/./urandom"},{"name":"JAVA_OPTS","value":"-Xmx1536m -Xms1536m -XX:+UseG1GC -XX:MaxGCPauseMillis=200"}],"essential":true,"healthCheck":{"command":["CMD-SHELL","curl -f http://localhost:8080/ || exit 1"],"interval":30,"retries":3,"startPeriod":120,"timeout":5},"image":"tomcat:9-jre11","logConfiguration":{"logDriver":"awslogs","options":{"awslogs-group":"/ecs/scenarios--a3ec77f7","awslogs-region":"eu-west-2","awslogs-stream-prefix":"ecs"}},"memoryReservation":800,"mountPoints":[],"name":"tomcat-app","portMappings":[{"containerPort":8080,"hostPort":8080,"protocol":"tcp"}],"systemControls":[],"volumesFrom":[]}]'
+  arn: (known after apply)
+  arn_without_revision: (known after apply)
+  container_definitions: '[{"environment":[{"name":"CATALINA_OPTS","value":"-Djava.security.egd=file:/dev/./urandom"},{"name":"JAVA_OPTS","value":"-Xmx1536m -Xms1536m -XX:+UseG1GC -XX:MaxGCPauseMillis=200"}],"essential":true,"healthCheck":{"command":["CMD-SHELL","curl -f http://localhost:9090/ || exit 1"],"interval":30,"retries":3,"startPeriod":120,"timeout":5},"image":"tomcat:9-jre11","logConfiguration":{"logDriver":"awslogs","options":{"awslogs-group":"/ecs/scenarios--a3ec77f7","awslogs-region":"eu-west-2","awslogs-stream-prefix":"ecs"}},"memoryReservation":800,"name":"tomcat-app","portMappings":[{"containerPort":9090,"hostPort":9090,"protocol":"tcp"}]}]'
   cpu: "512"
-  enable_fault_injection: false
+  enable_fault_injection: (known after apply)
   execution_role_arn: arn:aws:iam::540044833068:role/scenarios--a3ec77f7-ecs-execution-role
   family: scenarios--a3ec77f7-task
-  id: scenarios--a3ec77f7-task
-  memory: "2048"
+  id: (known after apply)
+  ipc_mode: null
+  memory: "1024"
   network_mode: awsvpc
+  pid_mode: null
   requires_compatibilities:
     - FARGATE
-  revision: 2
+  revision: (known after apply)
   skip_destroy: false
   tags:
-    ContainerMemoryMB: "2048"
+    ContainerMemoryMB: "1024"
     CreatedBy: terraform
     DaysUntilBF: "7"
@@ -24,17 +18,17 @@
     JavaHeapMB: "1536"
     JavaHeapSizeMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     MemoryOptimized: "true"
     MemoryOverheadMB: "256"
     Name: scenarios--a3ec77f7-task
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     TotalRequiredMB: "1792"
   tags_all:
-    ContainerMemoryMB: "2048"
+    ContainerMemoryMB: "1024"
     CreatedBy: terraform
     DaysUntilBF: "7"
@@ -43,13 +28,13 @@
     JavaHeapMB: "1536"
     JavaHeapSizeMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     MemoryOptimized: "true"
     MemoryOverheadMB: "256"
     Name: scenarios--a3ec77f7-task
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     TotalRequiredMB: "1792"
~ iam-role › scenarios--a3ec77f7-ecs-execution-role 
--- current
+++ proposed
@@ -17,10 +17,10 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
-    OptimizationWorks: "true"
+    MemoryMB: "1024"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tags_all:
@@ -29,10 +26,10 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
-    OptimizationWorks: "true"
+    MemoryMB: "1024"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   terraform_address: module.scenarios[0].module.memory_optimization.aws_iam_role.ecs_execution_role[0]
~ iam-role › scenarios--a3ec77f7-ecs-task-role 
--- current
+++ proposed
@@ -15,10 +15,10 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
-    OptimizationWorks: "true"
+    MemoryMB: "1024"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tags_all:
@@ -27,10 +24,10 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
-    OptimizationWorks: "true"
+    MemoryMB: "1024"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   terraform_address: module.scenarios[0].module.memory_optimization.aws_iam_role.ecs_task_role[0]
~ elbv2-load-balancer › scenarios--a3ec77f7-alb 
--- current
+++ proposed
@@ -41,11 +41,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-alb
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     context:black-friday-traffic: 10x normal load expected
@@ -57,11 +53,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-alb
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     context:black-friday-traffic: 10x normal load expected
~ elbv2-listener › arn:aws:elasticloadbalancing:eu-west-2:540044833068:listener/app/scenarios--a3ec77f7-alb/a0268d67b29039c7/af5e943a0e473e91 
--- current
+++ proposed
@@ -11,5 +11,5 @@
               enabled: false
           target_group:
-            - arn: arn:aws:elasticloadbalancing:eu-west-2:540044833068:targetgroup/scenarios--a3ec77f7-tg/202d88113aa8b778
+            - arn: (known after apply)
               weight: 1
       order: 1
@@ -33,11 +33,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-listener
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tags_all:
@@ -46,11 +42,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-listener
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tcp_idle_timeout_seconds: null
+/- elbv2-target-group › scenarios--a3ec77f7-tg 
--- current
+++ proposed
@@ -2,7 +2,7 @@
 id: github.com/overmindtech/terraform-example.elbv2-target-group.module.scenarios[0].module.memory_optimization.aws_lb_target_group.app[0]
 attributes:
-  arn: arn:aws:elasticloadbalancing:eu-west-2:540044833068:targetgroup/scenarios--a3ec77f7-tg/202d88113aa8b778
-  arn_suffix: targetgroup/scenarios--a3ec77f7-tg/202d88113aa8b778
-  connection_termination: null
+  arn: (known after apply)
+  arn_suffix: (known after apply)
+  connection_termination: (known after apply)
   deregistration_delay: "5"
   health_check:
@@ -16,23 +16,20 @@
       timeout: 5
       unhealthy_threshold: 2
-  id: arn:aws:elasticloadbalancing:eu-west-2:540044833068:targetgroup/scenarios--a3ec77f7-tg/202d88113aa8b778
-  ip_address_type: ipv4
+  id: (known after apply)
+  ip_address_type: (known after apply)
   lambda_multi_value_headers_enabled: false
-  load_balancer_arns:
-    - arn:aws:elasticloadbalancing:eu-west-2:540044833068:loadbalancer/app/scenarios--a3ec77f7-alb/a0268d67b29039c7
-  load_balancing_algorithm_type: round_robin
-  load_balancing_anomaly_mitigation: "off"
-  load_balancing_cross_zone_enabled: use_load_balancer_configuration
+  load_balancer_arns: (known after apply)
+  load_balancing_algorithm_type: (known after apply)
+  load_balancing_anomaly_mitigation: (known after apply)
+  load_balancing_cross_zone_enabled: (known after apply)
   name: scenarios--a3ec77f7-tg
-  port: 8080
-  preserve_client_ip: null
+  name_prefix: (known after apply)
+  port: 9090
+  preserve_client_ip: (known after apply)
   protocol: HTTP
-  protocol_version: HTTP1
+  protocol_version: (known after apply)
   proxy_protocol_v2: false
   slow_start: 0
-  stickiness:
-    - cookie_duration: 86400
-      enabled: false
-      type: lb_cookie
+  stickiness: (known after apply)
   tags:
     CreatedBy: terraform
@@ -41,11 +33,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-tg
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     risk:black-friday-timing: change 7 days before peak
@@ -58,28 +46,18 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-tg
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     risk:black-friday-timing: change 7 days before peak
     risk:deregistration-delay: 5s
     risk:rollback-capability: none
-  target_failover:
-    - on_deregistration: null
-      on_unhealthy: null
-  target_group_health:
-    - dns_failover:
-        - minimum_healthy_targets_count: "1"
-          minimum_healthy_targets_percentage: "off"
-      unhealthy_state_routing:
-        - minimum_healthy_targets_count: 1
-          minimum_healthy_targets_percentage: "off"
-  target_health_state:
-    - enable_unhealthy_connection_termination: null
-      unhealthy_draining_interval: null
+  target_failover: (known after apply)
+  target_group_health: (known after apply)
+  target_health_state: (known after apply)
   target_type: ip
   terraform_address: module.scenarios[0].module.memory_optimization.aws_lb_target_group.app[0]
~ ec2-security-group › sg-05d18b768c900a686 
--- current
+++ proposed
@@ -30,11 +30,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-alb-sg
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tags_all:
@@ -44,11 +40,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-alb-sg
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   terraform_address: module.scenarios[0].module.memory_optimization.aws_security_group.alb[0]
~ ec2-security-group › sg-0f300b2ad9b497952 
--- current
+++ proposed
@@ -15,10 +15,10 @@
   ingress:
     - description: HTTP from ALB
-      from_port: 8080
+      from_port: 9090
       protocol: tcp
       security_groups:
         - sg-05d18b768c900a686
       self: false
-      to_port: 8080
+      to_port: 9090
   name: scenarios--a3ec77f7-ecs-sg
   owner_id: "540044833068"
@@ -30,11 +26,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-ecs-sg
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     warning:containers-affected: 3 containers
@@ -46,11 +38,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-ecs-sg
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
     warning:containers-affected: 3 containers
~ sns-topic › arn:aws:sns:eu-west-2:540044833068:scenarios--a3ec77f7-alerts 
--- current
+++ proposed
@@ -21,11 +21,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-alerts
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tags_all:
@@ -35,11 +31,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-alerts
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   terraform_address: module.scenarios[0].module.memory_optimization.aws_sns_topic.alerts[0]
~ ec2-route-table › rtb-0c52db7871965c5a1 
--- current
+++ proposed
@@ -7,9 +7,9 @@
   owner_id: "540044833068"
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-default
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-default
     Terraform: "true"
~ ec2-address › 3.11.31.83 
--- current
+++ proposed
@@ -18,9 +18,9 @@
   public_ipv4_pool: amazon
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-eu-west-2a
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-eu-west-2a
     Terraform: "true"
~ ec2-address › 18.134.176.13 
--- current
+++ proposed
@@ -18,9 +18,9 @@
   public_ipv4_pool: amazon
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-eu-west-2b
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-eu-west-2b
     Terraform: "true"
~ ec2-internet-gateway › igw-0b7151f8472d03c8a 
--- current
+++ proposed
@@ -6,9 +6,9 @@
   owner_id: "540044833068"
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example
     Terraform: "true"
~ ec2-nat-gateway › nat-0f789c96969ec0dd1 
--- current
+++ proposed
@@ -12,9 +12,9 @@
   subnet_id: subnet-0b805a32f5d7f0c7b
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-eu-west-2a
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-eu-west-2a
     Terraform: "true"
~ ec2-nat-gateway › nat-06036dc6d716438e0 
--- current
+++ proposed
@@ -12,9 +12,9 @@
   subnet_id: subnet-016bfadacc9c60bfc
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-eu-west-2b
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-eu-west-2b
     Terraform: "true"
~ ec2-route-table › rtb-07f5933d73ceaab99 
--- current
+++ proposed
@@ -9,9 +9,9 @@
       nat_gateway_id: nat-0f789c96969ec0dd1
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-private-eu-west-2a
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-private-eu-west-2a
     Terraform: "true"
~ ec2-route-table › rtb-09d0b7c0ce1121c2d 
--- current
+++ proposed
@@ -9,9 +9,9 @@
       nat_gateway_id: nat-06036dc6d716438e0
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-private-eu-west-2b
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-private-eu-west-2b
     Terraform: "true"
~ ec2-route-table › rtb-0536cdbeadfe92efa 
--- current
+++ proposed
@@ -9,9 +9,9 @@
       gateway_id: igw-0b7151f8472d03c8a
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-public
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-public
     Terraform: "true"
~ ec2-subnet › subnet-0d0a1aff83bd8a460 
--- current
+++ proposed
@@ -18,9 +18,9 @@
   private_dns_hostname_type_on_launch: ip-name
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-private-eu-west-2a
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-private-eu-west-2a
     Terraform: "true"
~ ec2-subnet › subnet-0303f6ca155877094 
--- current
+++ proposed
@@ -18,9 +18,9 @@
   private_dns_hostname_type_on_launch: ip-name
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-private-eu-west-2b
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-private-eu-west-2b
     Terraform: "true"
~ ec2-subnet › subnet-0b805a32f5d7f0c7b 
--- current
+++ proposed
@@ -18,9 +18,9 @@
   private_dns_hostname_type_on_launch: ip-name
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-public-eu-west-2a
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-public-eu-west-2a
     Terraform: "true"
~ ec2-subnet › subnet-016bfadacc9c60bfc 
--- current
+++ proposed
@@ -18,9 +18,9 @@
   private_dns_hostname_type_on_launch: ip-name
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-public-eu-west-2b
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-public-eu-west-2b
     Terraform: "true"
~ ec2-vpc › vpc-0f4ddbf8c33e5c725 
--- current
+++ proposed
@@ -20,9 +20,9 @@
   owner_id: "540044833068"
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example
     Terraform: "true"

🟠 Unmapped Changes

~ aws_rds_cluster_instance › module.scenarios[0].aws_rds_cluster_instance.face_database 
--- current
+++ proposed
@@ -14,7 +14,7 @@
   endpoint: tf-20240827194315707700000013.cnx7xf6hwmba.eu-west-2.rds.amazonaws.com
   engine: aurora-postgresql
-  engine_version: "16.8"
+  engine_version: "16.6"
   engine_version_actual: "16.8"
-  force_destroy: null
+  force_destroy: false
   id: tf-20240827194315707700000013
   identifier: tf-20240827194315707700000013
~ aws_cloudwatch_log_group › module.scenarios[0].module.memory_optimization.aws_cloudwatch_log_group.app[0] 
--- current
+++ proposed
@@ -14,11 +14,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-logs
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tags_all:
@@ -28,11 +24,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-logs
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   terraform_address: module.scenarios[0].module.memory_optimization.aws_cloudwatch_log_group.app[0]
~ aws_ecs_service › module.scenarios[0].module.memory_optimization.aws_ecs_service.app[0] 
--- current
+++ proposed
@@ -22,6 +22,6 @@
   load_balancer:
     - container_name: tomcat-app
-      container_port: 8080
-      target_group_arn: arn:aws:elasticloadbalancing:eu-west-2:540044833068:targetgroup/scenarios--a3ec77f7-tg/202d88113aa8b778
+      container_port: 9090
+      target_group_arn: (known after apply)
   name: scenarios--a3ec77f7-service
   network_configuration:
@@ -44,11 +44,11 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-service
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
   tags_all:
@@ -61,13 +57,13 @@
     Environment: demo
     JavaHeapMB: "1536"
-    MemoryMB: "2048"
+    MemoryMB: "1024"
     Name: scenarios--a3ec77f7-service
-    OptimizationWorks: "true"
+    OptimizationWorks: "false"
     Project: memory-optimization
     Purpose: production-optimization
     RequiredMemoryMB: "1792"
-    RiskLevel: low
+    RiskLevel: high
     Scenario: cost-reduction
-  task_definition: arn:aws:ecs:eu-west-2:540044833068:task-definition/scenarios--a3ec77f7-task:2
+  task_definition: (known after apply)
   terraform_address: module.scenarios[0].module.memory_optimization.aws_ecs_service.app[0]
   terraform_name: module.scenarios[0].module.memory_optimization.aws_ecs_service.app[0]
~ aws_default_network_acl › module.scenarios[0].module.vpc.aws_default_network_acl.this[0] 
--- current
+++ proposed
@@ -46,9 +46,9 @@
     - subnet-0d0a1aff83bd8a460
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-default
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-default
     Terraform: "true"
~ aws_default_security_group › module.scenarios[0].module.vpc.aws_default_security_group.this[0] 
--- current
+++ proposed
@@ -35,9 +35,9 @@
   revoke_rules_on_delete: false
   tags:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-default
     Terraform: "true"
   tags_all:
-    Environment: dev
+    Environment: development
     Name: workloads-terraform-example-default
     Terraform: "true"

💥 Blast Radius

Items 168

Edges 395

@jameslaneovermind @DavidS-ovm
Change application port from 8080 to 9090
7cdc3cd 
Update the Tomcat application port configuration to use port 9090 instead of 8080. This change affects:

- ECS task definition container port mappings
- Load balancer target group health checks
- Security group ingress rules
- ALB listener configurations
@DavidS-ovm DavidS-ovm force-pushed the test/scenario-3-single-high-risk-change branch from 2bb0e8a to 7cdc3cd Compare October 29, 2025 15:16
@jameslaneovermind jameslaneovermind deleted the test/scenario-3-single-high-risk-change branch October 30, 2025 09:45
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@jameslaneovermind