Compare Cloud Costs
Compare Cloud Costs

Serverless Fallback & Resiliency Buffer

A resilient middleware buffer placed in front of serverless functions. Catches traffic spikes or cold-start timeouts by queuing requests into a persistent queue, caching session state, and dispatching to a failover VM worker pool.

Prices

Estimated monthly on-demand costs for this workload architecture.

Workload Costs Comparison

Prices by provider and services that enable users to run this workload. Shape the architecture based on cloud best practices using the four Architecture Priorities below — Capacity, Performance, Reliability, and Security. Components and prices recompute as you adjust each priority (e.g. higher Security adds a WAF, KMS, and threat monitoring), and you can switch region or billing period to compare like-for-like.

How each price was matched
CloseMeets the requirement but over-provisioned — the smallest SKU this provider sells above the requested size is materially larger.ApproximateFalls short on vCPU or memory. The price is real but it buys less than the architecture asks for.No comparable SKUNothing in this provider's catalog is close enough to compare fairly. Excluded from the total — the column is not a like-for-like alternative for that line.Not offeredThe provider does not sell a product in this category at all.
Unbadged prices are exact matches. Hover any badge for the specific reason. Totals cover only the components a provider actually matched — the “N of M tracked” note under a total says how many.
Workload Configuration

Architecture Priorities

Select level (High / Medium / Low) to adjust requirements
Buffered Requests / Sec
Speed — instance class, storage media, caching
Redundancy — HA, replicas, backups, load balancing
Hardening — WAF, key management, threat detection

Volume Assumptions

10M / mo
100k / mo
1 TB / mo
What this builds
API Gateway / RouterResiliency Message QueueTransient Session Cache×2Failover Worker Pool×6Dead-Letter Payload Storage×100Backup Storage×16

Infrastructure Architecture Blueprint

Copy or download (export) Terraform and OpenTofu architecture blueprints to deploy this workload in a cloud provider of your choice. Add parameters, credentials, or steps for CLI and DevOps CI/CD pipelines.

Provider:
Engine:
1# ==============================================================================
2# ARCHITECTURE BLUEPRINT (TERRAFORM / OPENTOFU)
3# Copyright (c) 2026 Cosell Plus, LLC. All Rights Reserved.
4#
5# DISCLAIMER & TERMS OF USE:
6# This IaC blueprint is generated by CompareCloudCosts (CCC) for educational,
7# planning, and directional architectural purposes. Provided "AS IS" without
8# warranty of any kind, express or implied. Cosell Plus, LLC assumes no
9# liability for operational costs, misconfigurations, or service interruptions.
10# Always review and validate security, IAM, and compliance parameters before
11# deploying to production environment.
12# ==============================================================================
13#
14# ------------------------------------------------------------------------------
15# IDENTITY & CREDENTIAL PLACEHOLDERS (CLI & DEVOPS CI/CD PIPELINE)
16# ------------------------------------------------------------------------------
17# Steps to execute this blueprint using Terraform:
18# 1. Save this file as main.tf
19# 2. Set provider authentication credentials:
20#
21# For AWS Local CLI Execution:
22# export AWS_ACCESS_KEY_ID="<YOUR_AWS_ACCESS_KEY_ID>"
23# export AWS_SECRET_ACCESS_KEY="<YOUR_AWS_SECRET_ACCESS_KEY>"
24# export AWS_REGION="<REGION>"
25#
26# For AWS DevOps CI/CD Pipeline (GitHub Actions / GitLab CI / Azure DevOps):
27# Recommended: Use AWS OpenID Connect (OIDC) Role Assumption:
28# - role-to-assume: "arn:aws:iam::123456789012:role/GitHubActionsDeployerRole"
29# - aws-region: "<REGION>"
30#
31# 3. Initialize and apply:
32# $ terraform init
33# $ terraform plan
34# $ terraform apply
35# ------------------------------------------------------------------------------
36
37# ------------------------------------------------------------------------------
38# PROVIDER CONFIGURATION (TERRAFORM)
39# ------------------------------------------------------------------------------
40🔑 terraform {
41 required_version = ">= 1.5.0"
42 required_providers {
43 aws = {
44 source = "hashicorp/aws"
45 version = "~> 5.0"
46 }
47 }
48}
49
50🔑 provider "aws" {
51 region = var.aws_region
52
53 default_tags {
54 tags = {
55 ManagedBy = "Terraform"
56 Environment = var.environment
57 Workload = var.workload_id
58 Vendor = "Cosell Plus LLC Blueprint"
59 }
60 }
61}
62
63🔑 variable "aws_region" {
64 type = string
65 default = "us-east-1"
66 description = "Target AWS Deployment Region"
67}
68
69🔑 variable "environment" {
70 type = string
71 default = "production"
72 description = "Deployment environment (e.g. dev, staging, production)"
73}
74
75🔑 variable "workload_id" {
76 type = string
77 default = "workload-blueprint"
78 description = "Identifier tag for the workload"
79}
80
81# ------------------------------------------------------------------------------
82# WORKLOAD COMPONENT RESOURCES (SERVERLESS FALLBACK & RESILIENCY BUFFER)
83# ------------------------------------------------------------------------------
84# Component: API Gateway / Router
85🔑 resource "aws_apigatewayv2_api" "api_gateway" {
86 name = "api_gateway-http-api"
87 protocol_type = "HTTP"
88 description = "Ingress entry point and request router"
89
90 cors_configuration {
91 allow_origins = ["*"]
92 allow_methods = ["GET", "POST", "PUT", "DELETE", "OPTIONS"]
93 allow_headers = ["Authorization", "Content-Type", "X-Api-Key"]
94 }
95}
96
97🔑 resource "aws_apigatewayv2_stage" "api_gateway_stage" {
98 api_id = aws_apigatewayv2_api.api_gateway.id
99 name = "$default"
100 auto_deploy = true
101}
102
103# Component: Resiliency Message Queue
104🔑 resource "aws_sqs_queue" "buffer_queue" {
105 name = "buffer_queue-queue"
106 delay_seconds = 0
107 max_message_size = 262144
108 message_retention_seconds = 864000 # 10 days
109 receive_wait_time_seconds = 20 # Long polling
110 visibility_timeout_seconds = 60
111
112
113}
114
115# Component: Transient Session Cache
116🔑 resource "aws_elasticache_cluster" "session_cache" {
117 cluster_id = "session_cache-redis"
118 engine = "redis"
119 node_type = "cache.m6g.large"
120 num_cache_nodes = 1
121 parameter_group_name = "default.redis7"
122 port = 6379
123}
124
125# Component: Failover Worker Pool
126🔑 resource "aws_launch_template" "failover_compute_lt" {
127 name_prefix = "failover_compute-lt-"
128 image_id = "ami-0c55b159cbfafe1f0" # Amazon Linux 2023 AMI
129 instance_type = "t4g.medium"
130
131 tag_specifications {
132 resource_type = "instance"
133 tags = {
134 Name = "Failover Worker Pool"
135 }
136 }
137}
138
139🔑 resource "aws_autoscaling_group" "failover_compute_asg" {
140 name_prefix = "failover_compute-asg-"
141 min_size = 1
142 max_size = 4
143 desired_capacity = 1
144 vpc_zone_identifier = ["subnet-placeholder-1", "subnet-placeholder-2"]
145
146 launch_template {
147 id = aws_launch_template.failover_compute_lt.id
148 version = "$Latest"
149 }
150}
151
152# Component: Dead-Letter Payload Storage
153🔑 resource "aws_s3_bucket" "dlq_storage" {
154 bucket_prefix = "ccc-dlq_storage-"
155 force_destroy = false
156}
157
158🔑 resource "aws_s3_bucket_server_side_encryption_configuration" "dlq_storage_enc" {
159 bucket = aws_s3_bucket.dlq_storage.id
160 rule {
161 apply_server_side_encryption_by_default {
162 sse_algorithm = "AES256"
163 }
164 }
165}
166
167
168
169# Component: Backup Storage
170🔑 resource "aws_s3_bucket" "backup_storage" {
171 bucket_prefix = "ccc-backup_storage-"
172 force_destroy = false
173}
174
175🔑 resource "aws_s3_bucket_server_side_encryption_configuration" "backup_storage_enc" {
176 bucket = aws_s3_bucket.backup_storage.id
177 rule {
178 apply_server_side_encryption_by_default {
179 sse_algorithm = "AES256"
180 }
181 }
182}
183
184
185
186
187# ------------------------------------------------------------------------------
188# OUTPUTS
189# ------------------------------------------------------------------------------
190🔑 output "blueprint_summary" {
191 value = {
192 workload_id = "serverless-fallback-buffer"
193 🔑 provider = "aws"
194 region = "us-east-1"
195 components = 6
196 priorities = {
197 capacity = "medium"
198 performance = "medium"
199 reliability = "medium"
200 security = "medium"
201 }
202 }
203}
204

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Disclaimer: These price results are conceptual, for comparison only. The algorithm auto-selects the cheapest matching infrastructure that meets the memory and compute minimums from your scale parameters, without accounting for licensing, egress fees, custom integrations, or platform limitations. Check official provider documentation for real-world sizing. Visit our Terms of Use for data coverage details.