standardize on "group" key

blueprints/apigee/apigee-x-foundations/northbound.tf

@@ -66,7 +66,7 @@ module "ext_lb" {
   use_classic_version = false
   backend_service_configs = {
     default = {
-      backends          = [for k, v in local.ext_instances : { backend = google_compute_region_network_endpoint_group.psc_negs[k].id }]
+      backends          = [for k, v in local.ext_instances : { group = google_compute_region_network_endpoint_group.psc_negs[k].id }]
       protocol          = "HTTPS"
       health_checks     = []
       outlier_detection = var.ext_lb_config.outlier_detection

blueprints/apigee/bigquery-analytics/main.tf

@@ -95,7 +95,7 @@ module "glb" {
   use_classic_version = false
   backend_service_configs = {
     default = {
-      backends      = [for k, v in var.instances : { backend = k }]
+      backends      = [for k, v in var.instances : { group = k }]
       protocol      = "HTTPS"
       health_checks = []
     }

blueprints/apigee/network-patterns/nb-glb-psc-neg-sb-psc-ilbl7-hybrid-neg/apigee_nb.tf

@@ -22,7 +22,7 @@ module "glb" {
   use_classic_version = false
   backend_service_configs = {
     default = {
-      backends      = [{ backend = "neg-0" }]
+      backends      = [{ group = "neg-0" }]
       protocol      = "HTTPS"
       health_checks = []
     }

blueprints/cloud-operations/adfs/main.tf

@@ -104,7 +104,7 @@ module "glb" {
   protocol   = "HTTPS"
   backend_service_configs = {
     default = {
-      backends        = [{ backend = module.server.group.id }]
+      backends        = [{ group = module.server.group.id }]
       log_sample_rate = 1
       protocol        = "HTTPS"
     }

blueprints/networking/glb-and-armor/main.tf

@@ -198,8 +198,8 @@ module "glb" {
   backend_service_configs = {
     default = {
       backends = [
-        { backend = module.mig_ew1.group_manager.instance_group },
-        { backend = module.mig_ue1.group_manager.instance_group }
+        { group = module.mig_ew1.group_manager.instance_group },
+        { group = module.mig_ue1.group_manager.instance_group }
       ]
       log_sample_rate = 1
       security_policy = try(google_compute_security_policy.policy[0].name, null)

blueprints/networking/glb-hybrid-neg-internal/glb.tf

@@ -24,12 +24,12 @@ module "hybrid-glb" {
     default = {
       backends = [
         {
-          backend        = "neg-primary"
+          group          = "neg-primary"
           balancing_mode = "RATE"
           max_rate       = { per_endpoint = 100 }
         },
         {
-          backend        = "neg-secondary"
+          group          = "neg-secondary"
           balancing_mode = "RATE"
           max_rate       = { per_endpoint = 100 }
         }

blueprints/networking/psc-glb-and-armor/consumer.tf

@@ -68,15 +68,15 @@ module "glb" {
   backend_service_configs = {
     default = {
       backends = [
-        { backend = "neg-a" }
+        { group = "neg-a" }
       ]
       health_checks   = []
       protocol        = "HTTPS"
       security_policy = google_compute_security_policy.cloud-armor-policy.name
     }
     other = {
       backends = [
-        { backend = "neg-b" }
+        { group = "neg-b" }
       ]
       health_checks   = []
       protocol        = "HTTPS"

blueprints/serverless/cloud-run-explore/main.tf

@@ -75,7 +75,7 @@ module "glb" {
   backend_service_configs = {
     default = {
       backends = [
-        { backend = "neg-0" }
+        { group = "neg-0" }
       ]
       health_checks = []
       port_name     = "http"

blueprints/third-party-solutions/phpipam/glb.tf

@@ -57,7 +57,7 @@ module "glb" {
   backend_service_configs = {
     default = {
       backends = [
-        { backend = "phpipam" }
+        { group = "phpipam" }
       ]
       health_checks = []
       port_name     = "http"

modules/net-lb-app-ext-regional/README.md

@@ -386,7 +386,7 @@ module "ralb-0" {
     default = {
       backends = [
         {
-          backend        = "neg-0"
+          group          = "neg-0"
           balancing_mode = "RATE"
           max_rate       = { per_endpoint = 10 }
         }
@@ -428,7 +428,7 @@ module "ralb-0" {
     default = {
       backends = [
         {
-          backend        = "neg-0"
+          group          = "neg-0"
           balancing_mode = "RATE"
           max_rate       = { per_endpoint = 10 }
         }
@@ -617,14 +617,14 @@ module "ralb-0" {
     neg-gce-0 = {
       backends = [{
         balancing_mode = "RATE"
-        backend        = "neg-zone-c"
+        group          = "neg-zone-c"
         max_rate       = { per_endpoint = 10 }
       }]
     }
     neg-hybrid-0 = {
       backends = [{
         balancing_mode = "RATE"
-        backend        = "neg-hello"
+        group          = "neg-hello"
         max_rate       = { per_endpoint = 10 }
       }]
       health_checks = ["neg"]

modules/net-lb-app-ext-regional/backend-service.tf

@@ -72,7 +72,7 @@ resource "google_compute_region_backend_service" "default" {
   timeout_sec      = each.value.timeout_sec
 
   dynamic "backend" {
-    for_each = { for b in coalesce(each.value.backends, []) : b.backend => b }
+    for_each = { for b in coalesce(each.value.backends, []) : b.group => b }
     content {
       group           = lookup(local.group_ids, backend.key, backend.key)
       balancing_mode  = backend.value.balancing_mode # UTILIZATION, RATE

modules/net-lb-app-ext/README.md

@@ -386,7 +386,7 @@ module "glb-0" {
     default = {
       backends = [
         {
-          backend        = "myneg-b"
+          group        = "myneg-b"
           balancing_mode = "RATE"
           max_rate       = { per_endpoint = 10 }
         }
@@ -420,7 +420,7 @@ module "glb-0" {
     default = {
       backends = [
         {
-          backend        = "neg-0"
+          group        = "neg-0"
           balancing_mode = "RATE"
           max_rate       = { per_endpoint = 10 }
         }
@@ -460,7 +460,7 @@ module "glb-0" {
     default = {
       backends = [
         {
-          backend        = "neg-0"
+          group        = "neg-0"
           balancing_mode = "RATE"
           max_rate       = { per_endpoint = 10 }
         }
@@ -775,14 +775,14 @@ module "glb-0" {
     neg-gce-0 = {
       backends = [{
         balancing_mode = "RATE"
-        backend        = "neg-zone-c"
+        group        = "neg-zone-c"
         max_rate       = { per_endpoint = 10 }
       }]
     }
     neg-hybrid-0 = {
       backends = [{
         balancing_mode = "RATE"
-        backend        = "neg-hello"
+        group        = "neg-hello"
         max_rate       = { per_endpoint = 10 }
       }]
       health_checks = ["neg"]

tests/modules/net_lb_app_ext/test-plan.tfvars

@@ -8,26 +8,26 @@ backend_buckets_config = {
 backend_service_configs = {
   default = {
     backends = [
-      { backend = "projects/my-project/zones/europe-west8-b/instanceGroups/ig-b" },
-      { backend = "ig-c" }
+      { group = "projects/my-project/zones/europe-west8-b/instanceGroups/ig-b" },
+      { group = "ig-c" }
     ]
   }
   neg-cloudrun = {
-    backends      = [{ backend = "neg-cloudrun" }]
+    backends      = [{ group = "neg-cloudrun" }]
     health_checks = []
   }
   neg-gce = {
-    backends       = [{ backend = "neg-gce" }]
+    backends       = [{ group = "neg-gce" }]
     balancing_mode = "RATE"
     max_rate       = { per_endpoint = 10 }
   }
   neg-hybrid = {
-    backends       = [{ backend = "neg-hybrid" }]
+    backends       = [{ group = "neg-hybrid" }]
     balancing_mode = "RATE"
     max_rate       = { per_endpoint = 10 }
   }
   neg-internet = {
-    backends      = [{ backend = "neg-internet" }]
+    backends      = [{ group = "neg-internet" }]
     health_checks = []
   }
 }