chore(terraform): drop tf-poc from live module and CI

.github/workflows/ci.yml

@@ -45,7 +45,7 @@ jobs:
           directories=()
           case "${{ github.base_ref }}" in
             dev)
-              directories+=(terraform/live/tf-poc terraform/live/dev)
+              directories+=(terraform/live/dev)
               ;;
             staging)
               directories+=(terraform/live/staging)

QUALITY_GATES.md

@@ -56,14 +56,14 @@ The script:
 G10 permits only exact approved resource address/type pairs for the
 environment-owned boundary: Elastic
 Beanstalk environment, IAM role/inline policy/managed-policy attachment/
-instance profile, Secrets Manager secret metadata, Route 53 zone/record, and
-ACM certificate. Initial mode permits no update. Controlled mode requires one
+instance profile, Secrets Manager secret metadata, and Route 53 record.
+Initial mode permits no update. Controlled mode requires one
 `--allow-update-address` argument per reviewed in-place update. Every invocation
-also requires `--environment dev`, `--environment staging`, or
-`--environment tf-poc`; an empty or incomplete environment plan fails.
+also requires `--environment dev` or `--environment staging`; an empty or
+incomplete environment plan fails.
 
 G11 runs `terraform fmt -check -recursive`, `terraform init -backend=false`,
-and `terraform validate`. PRs to `dev` validate `live/tf-poc` and `live/dev`.
+and `terraform validate`. PRs to `dev` validate `live/dev`.
 PRs to `staging` validate only `live/staging`. Org-baseline CloudFormation owns
 the HCP role substrate, and Terraform owns the dev deploy role, so no backend
 CDK or bootstrap root remains in the matrix.

scripts/terraform_import_plan_resources.py

@@ -23,12 +23,6 @@ REQUIRED_RESOURCES = {
         "module.environment.aws_iam_role_policy.runtime_webhook[0]": "aws_iam_role_policy",
         "module.environment.aws_route53_record.api_cname[0]": "aws_route53_record",
     },
-    "tf-poc": {
-        **COMMON_RESOURCES,
-        "aws_acm_certificate.poc": "aws_acm_certificate",
-        "aws_route53_zone.poc": "aws_route53_zone",
-        "module.environment.aws_route53_record.api_cname[0]": "aws_route53_record",
-    },
 }
 
 DEV_IMPORT_IDS = {

scripts/test-terraform-import-plan-check.py

@@ -186,15 +186,6 @@ def main() -> int:
             ),
             0,
         ),
-        (
-            "tf-poc controlled update",
-            run_case(
-                "tf-poc",
-                actions_by_address={controlled_address: ["update"]},
-                allowed_updates=(controlled_address,),
-            ),
-            0,
-        ),
         (
             "wrong controlled address",
             run_case(
@@ -255,12 +246,12 @@ def main() -> int:
             1,
         ),
         (
-            "live webhook policy in tf-poc",
+            "staging resource in a dev plan",
             run_case(
-                "tf-poc",
+                "dev",
                 extra_resource=(
-                    "module.environment.aws_iam_role_policy.runtime_webhook[0]",
-                    "aws_iam_role_policy",
+                    "module.environment.aws_route53_record.api_cname[0]",
+                    "aws_route53_record",
                     ["no-op"],
                 ),
             ),

terraform/README.md

@@ -7,8 +7,6 @@ keeping shared and Elastic Beanstalk-generated resources outside state.
 
 - `live/dev/` imports the existing dev environment-owned resources.
 - `live/staging/` imports the existing staging environment-owned resources.
-- `live/tf-poc/` manages the retained import-rehearsal environment after its
-  completed transfer from CloudFormation.
 
 Shared RDS, application, VPC, subnet, service-role, shared-certificate, and
 Elastic Beanstalk-generated inventory remains data-only or provider-managed.
@@ -42,8 +40,6 @@ terraform -chdir=terraform/live/dev init -backend=false
 terraform -chdir=terraform/live/dev validate
 terraform -chdir=terraform/live/staging init -backend=false
 terraform -chdir=terraform/live/staging validate
-terraform -chdir=terraform/live/tf-poc init -backend=false
-terraform -chdir=terraform/live/tf-poc validate
 python scripts/test-terraform-import-plan-check.py
 python scripts/test-terraform-release-plan-check.py
 ```

terraform/live/README.md

@@ -8,10 +8,6 @@ shared or Elastic Beanstalk-generated infrastructure.
 - `dev/` and `staging/` import the existing EB environment, runtime
   role/profile/policies, deploy role/policy, app-config secret metadata, and API
   record.
-- `tf-poc/` manages the retained rehearsal environment after its completed
-  CloudFormation-to-Terraform transfer, excluding the live-only webhook and
-  Dynamo policies. It also owns the child zone and DNS-validated ACM
-  certificate.
 - `modules/environment-inventory/` reads and pins only shared resources.
 - Org-baseline CloudFormation owns the narrowly scoped HCP Terraform plan/apply
   roles.
@@ -19,8 +15,7 @@ shared or Elastic Beanstalk-generated infrastructure.
 The shared `shoc-backend` Elastic Beanstalk application and
 `shoc-sqlserver-shared` RDS instance, VPC, subnets, EB service role, shared
 certificate, shared RDS security group, and EB-generated SG/ALB/ASG/CloudFormation
-resources must never enter an environment state. The `shoc_tf_poc` SQL catalog
-is out of band.
+resources must never enter an environment state.
 
 Secret values are not Terraform resources, variables, outputs, or managed EB
 settings. Terraform manages the app-config secret shell and maps approved JSON
@@ -78,9 +73,7 @@ Terraform does not perform this pre-import mutation.
 ## Two-phase adoption
 
 Each dev/staging root pins `adoption_complete=false` in reviewed code until its
-initial import is proven. It is not an HCP workspace variable. The retained
-tf-poc rehearsal has completed both phases and therefore pins
-`adoption_complete=true`.
+initial import is proven. It is not an HCP workspace variable.
 
 1. Create the HCP workspace and configure dynamic credentials.
 2. Run the declarative imports.
@@ -169,19 +162,6 @@ This change is the allowed exception that mixes deployable application CD with
 the Terraform variable that application CD needs. Later PRs must not mix
 deployable application changes with Terraform or CDK changes.
 
-## POC retained identifiers
-
-The tf-poc HCP workspace stores the exact retained environment ID, app-config
-secret ARN, child-zone ID, and certificate ARN declared in
-`tf-poc/variables.tf`. The declarative import blocks consumed those identifiers
-during the completed transfer. Do not guess or replace them, and do not put
-credentials or secret values in HCP variables.
-
-ACM DNS validation remains part of the Terraform-owned certificate resource;
-its generated validation record is not a separate ownership target. The public
-delegation of `tf-poc.seahaven.com` from `seahaven.com` remains outside this
-Terraform state.
-
 ## Pinned live identities
 
 - Dev: workspace `shoc-backend-dev`; EB environment `shoc-backend-dev`
@@ -198,5 +178,3 @@ identifiers make accidental cross-environment reuse fail review and planning.
 - Auto-apply remains off.
 - Org baseline owns final HCP plan/apply permissions and manager tags.
 - Every imported Terraform resource has `prevent_destroy`.
-- The tf-poc CloudFormation creator path was removed after its no-op import,
-  controlled update, and retained-resource ownership transfer completed.

terraform/live/modules/environment-owned/main.tf

@@ -196,7 +196,6 @@ resource "aws_iam_role" "github_deploy" {
 
 data "aws_iam_policy_document" "deploy" {
   statement {
-    sid    = var.environment == "tf-poc" ? "DescribeDeploymentResources" : null
     effect = "Allow"
     actions = [
       "autoscaling:Describe*",
@@ -210,7 +209,6 @@ data "aws_iam_policy_document" "deploy" {
   }
 
   statement {
-    sid     = var.environment == "tf-poc" ? "CreateApplicationVersion" : null
     effect  = "Allow"
     actions = ["elasticbeanstalk:CreateApplicationVersion"]
     resources = [
@@ -220,45 +218,38 @@ data "aws_iam_policy_document" "deploy" {
   }
 
   statement {
-    sid       = var.environment == "tf-poc" ? "UpdatePocEnvironment" : null
     effect    = "Allow"
     actions   = ["elasticbeanstalk:UpdateEnvironment"]
     resources = [local.environment_arn]
   }
 
-  dynamic "statement" {
-    for_each = var.environment != "tf-poc" ? [1] : []
-    content {
-      effect = "Allow"
-      actions = [
-        "cloudformation:CancelUpdateStack",
-        "cloudformation:DescribeStackEvents",
-        "cloudformation:DescribeStackResource",
-        "cloudformation:DescribeStackResources",
-        "cloudformation:DescribeStacks",
-        "cloudformation:GetTemplate",
-        "cloudformation:ListStackResources",
-        "cloudformation:UpdateStack",
-      ]
-      resources = [
-        "arn:aws:cloudformation:${var.aws_region}:${var.aws_account_id}:stack/${local.environment_stack_name}/*",
-      ]
-    }
+  statement {
+    effect = "Allow"
+    actions = [
+      "cloudformation:CancelUpdateStack",
+      "cloudformation:DescribeStackEvents",
+      "cloudformation:DescribeStackResource",
+      "cloudformation:DescribeStackResources",
+      "cloudformation:DescribeStacks",
+      "cloudformation:GetTemplate",
+      "cloudformation:ListStackResources",
+      "cloudformation:UpdateStack",
+    ]
+    resources = [
+      "arn:aws:cloudformation:${var.aws_region}:${var.aws_account_id}:stack/${local.environment_stack_name}/*",
+    ]
   }
 
-  dynamic "statement" {
-    for_each = var.environment != "tf-poc" ? [1] : []
-    content {
-      effect = "Allow"
-      actions = [
-        "autoscaling:PutNotificationConfiguration",
-        "autoscaling:ResumeProcesses",
-        "autoscaling:SuspendProcesses",
-      ]
-      resources = [
-        "arn:aws:autoscaling:${var.aws_region}:${var.aws_account_id}:autoScalingGroup:*:autoScalingGroupName/${local.environment_stack_name}-*",
-      ]
-    }
+  statement {
+    effect = "Allow"
+    actions = [
+      "autoscaling:PutNotificationConfiguration",
+      "autoscaling:ResumeProcesses",
+      "autoscaling:SuspendProcesses",
+    ]
+    resources = [
+      "arn:aws:autoscaling:${var.aws_region}:${var.aws_account_id}:autoScalingGroup:*:autoScalingGroupName/${local.environment_stack_name}-*",
+    ]
   }
 
   dynamic "statement" {
@@ -288,7 +279,6 @@ data "aws_iam_policy_document" "deploy" {
   dynamic "statement" {
     for_each = local.use_legacy_s3_policy ? [] : [1]
     content {
-      sid       = var.environment == "tf-poc" ? "UploadApplicationVersion" : null
       effect    = "Allow"
       actions   = ["s3:PutObject"]
       resources = ["arn:aws:s3:::${local.eb_bucket_name}/${var.eb_application_name}/*"]
@@ -298,25 +288,11 @@ data "aws_iam_policy_document" "deploy" {
   dynamic "statement" {
     for_each = local.use_legacy_s3_policy ? [] : [1]
     content {
-      sid       = var.environment == "tf-poc" ? "UseBeanstalkBucket" : null
       effect    = "Allow"
       actions   = ["s3:GetBucketLocation", "s3:ListBucket"]
       resources = ["arn:aws:s3:::${local.eb_bucket_name}"]
     }
   }
-
-  dynamic "statement" {
-    for_each = var.environment == "tf-poc" ? [1] : []
-    content {
-      sid     = "DenyLiveEnvironments"
-      effect  = "Deny"
-      actions = ["elasticbeanstalk:*"]
-      resources = [
-        "arn:aws:elasticbeanstalk:${var.aws_region}:${var.aws_account_id}:environment/${var.eb_application_name}/shoc-backend-dev",
-        "arn:aws:elasticbeanstalk:${var.aws_region}:${var.aws_account_id}:environment/${var.eb_application_name}/shoc-backend-staging",
-      ]
-    }
-  }
 }
 
 resource "aws_iam_role_policy" "github_deploy" {

terraform/live/modules/environment-owned/variables.tf

@@ -10,8 +10,8 @@ variable "environment" {
   type = string
 
   validation {
-    condition     = contains(["dev", "staging", "tf-poc"], var.environment)
-    error_message = "environment must be dev, staging, or tf-poc."
+    condition     = contains(["dev", "staging"], var.environment)
+    error_message = "environment must be dev or staging."
   }
 }
 
@@ -37,7 +37,7 @@ variable "eb_environment_name" {
 
 variable "eb_environment_id" {
   type        = string
-  description = "Existing environment ID. Empty only before the CDK POC has been provisioned."
+  description = "Existing Elastic Beanstalk environment ID."
 }
 
 variable "platform_arn" {
@@ -143,7 +143,7 @@ variable "webhook_decrypt_policy_sid" {
 variable "dynamo_reader_role_arn" {
   type        = string
   default     = null
-  description = "Dev-only cross-account role. Null for staging and tf-poc."
+  description = "Dev-only cross-account role. Null for staging."
 }
 
 variable "dynamo_policy_sid" {