Merge remote-tracking branch 'origin/main' into f-iot-authentication-type

Author: badmintoncryer

.changelog/41846.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+resource/aws_lb_listener: Don't send zero value (`false`, `0` or `""`) for unconfigured listener attributes on Create
+```

.changelog/42148.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/aws_msk_serverless_cluster: Add `bootstrap_brokers_sasl_iam` attribute. This functionality requires the `kafka:GetBootstrapBrokers` IAM permission
+```

.changelog/42559.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+resource/aws_rds_cluster_parameter_group: Fix `InvalidParameterValue: collation_server '..' is not valid for character_set '...'` errors on Create
+```

.changelog/42563.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/aws_docdb_cluster: Add `manage_master_user_password` argument and `master_user_secret` attribute
+```

.teamcity/scripts/provider_tests/acceptance_tests.sh

@@ -47,6 +47,7 @@ TF_ACC=1 go test \
     ./internal/function/... \
     ./internal/generate/... \
     ./internal/io/... \
+    ./internal/iters/... \
     ./internal/json/... \
     ./internal/logging/... \
     ./internal/maps/... \

.teamcity/scripts/provider_tests/unit_tests.sh

@@ -19,6 +19,7 @@ go test \
     ./internal/function/... \
     ./internal/generate/... \
     ./internal/io/... \
+    ./internal/iters/... \
     ./internal/json/... \
     ./internal/logging/... \
     ./internal/maps/... \

CHANGELOG.md

@@ -25,6 +25,7 @@ ENHANCEMENTS:
 * resource/aws_dynamodb_table: Add `point_in_time_recovery.recovery_period_in_days` argument ([#41484](https://github.com/hashicorp/terraform-provider-aws/issues/41484))
 * resource/aws_ec2_client_vpn_endpoint: Add `client_route_enforcement_options` argument ([#42424](https://github.com/hashicorp/terraform-provider-aws/issues/42424))
 * resource/aws_ecs_account_setting_default: Add support for `defaultLogDriverMode` value in `Name` argument ([#42418](https://github.com/hashicorp/terraform-provider-aws/issues/42418))
+* resource/aws_msk_serverless_cluster: Add `bootstrap_brokers_sasl_iam` attribute. This functionality requires the `kafka:GetBootstrapBrokers` IAM permission ([#42148](https://github.com/hashicorp/terraform-provider-aws/issues/42148))
 * resource/aws_redshiftserverless_workgroup: Add `track_name` argument ([#42451](https://github.com/hashicorp/terraform-provider-aws/issues/42451))
 * resource/aws_rum_app_monitor: Add `domain_list` argument ([#42456](https://github.com/hashicorp/terraform-provider-aws/issues/42456))
 * resource/aws_rum_app_monitor: Mark `domain` as Optional ([#42456](https://github.com/hashicorp/terraform-provider-aws/issues/42456))
@@ -44,6 +45,8 @@ BUG FIXES:
 * resource/aws_controltower_control: Fix handling `ResourceNotFound` exceptions during delete ([#42494](https://github.com/hashicorp/terraform-provider-aws/issues/42494))
 * resource/aws_controltower_control: Fix handling of `parameters` block removal ([#42494](https://github.com/hashicorp/terraform-provider-aws/issues/42494))
 * resource/aws_ec2_network_insights_path: Fix failure when `filter_at_source.source_address` is unspecified. ([#42369](https://github.com/hashicorp/terraform-provider-aws/issues/42369))
+* resource/aws_lb_listener: Don't send zero value (`false`, `0` or `""`) for unconfigured listener attributes on Create ([#41846](https://github.com/hashicorp/terraform-provider-aws/issues/41846))
+* resource/aws_rds_cluster_parameter_group: Fix `InvalidParameterValue: collation_server '..' is not valid for character_set '...'` errors on Create ([#42559](https://github.com/hashicorp/terraform-provider-aws/issues/42559))
 
 ## 5.97.0 (May  1, 2025)
 

internal/iters/README.md

@@ -0,0 +1,4 @@
+# Generic Iterator Functions
+
+Complements Go standard library [`iter` package](https://pkg.go.dev/iter@master).
+See https://github.com/golang/go/issues/61898.

internal/iters/concat.go

@@ -0,0 +1,21 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
+package iters
+
+import (
+	"iter"
+)
+
+// Concat returns an iterator over the concatenation of the sequences.
+func Concat[V any](seqs ...iter.Seq[V]) iter.Seq[V] {
+	return func(yield func(V) bool) {
+		for _, seq := range seqs {
+			for e := range seq {
+				if !yield(e) {
+					return
+				}
+			}
+		}
+	}
+}

internal/iters/concat_test.go

@@ -0,0 +1,46 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
+package iters
+
+import (
+	"iter"
+	"slices"
+	"testing"
+)
+
+func TestConcat(t *testing.T) {
+	t.Parallel()
+
+	type testCase struct {
+		input    []iter.Seq[int]
+		expected int
+	}
+
+	tests := map[string]testCase{
+		"nil input": {},
+		"1 input, 0 elements": {
+			input: []iter.Seq[int]{slices.Values([]int{})},
+		},
+		"1 input, 2 elements": {
+			input:    []iter.Seq[int]{slices.Values([]int{1, 2})},
+			expected: 2,
+		},
+		"3 inputs": {
+			input:    []iter.Seq[int]{slices.Values([]int{1, 2}), slices.Values([]int(nil)), slices.Values([]int{3, 4, 5})},
+			expected: 5,
+		},
+	}
+
+	for name, test := range tests {
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			output := Concat(test.input...)
+
+			if got, want := len(slices.Collect(output)), test.expected; got != want {
+				t.Errorf("Length of output = %v, want %v", got, want)
+			}
+		})
+	}
+}