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Here are some key observations to aid the review process:
⏱️ Estimated effort to review: 5 🔵🔵🔵🔵🔵
🧪 No relevant tests
🔒 Security concerns
Sensitive information exposure: The RabbitMQ password and other sensitive variables are stored in plain text in the Terraform state file. This could lead to security vulnerabilities if the state file is not properly secured. Consider using encrypted storage for sensitive data.
The on_failure = continue setting in the provisioner "remote-exec" blocks for multiple resources may lead to incomplete or inconsistent configurations if the provisioner fails. This should be reviewed to ensure it aligns with the desired behavior.
The security group allow_runner allows unrestricted access (0.0.0.0/0) for multiple ports, including SSH (22), RDP (3389), and HTTP/HTTPS. This could pose a security risk and should be restricted to specific IP ranges if possible.
name="allow_runner"description="Allow HTTP and HTTPS inbound traffic"vpc_id=aws_vpc.gh-runners.idingress {
description="HTTPS for VPC"from_port=443to_port=443protocol="tcp"cidr_blocks=["0.0.0.0/0"]
}
ingress {
description="HTTP for VPC"from_port=80to_port=80protocol="tcp"cidr_blocks=["0.0.0.0/0"]
}
ingress {
description="SSH for VPC"from_port=22to_port=22protocol="tcp"cidr_blocks=["0.0.0.0/0"]
}
ingress {
description="WinRM for VPC"from_port=5985to_port=5985protocol="tcp"cidr_blocks=["0.0.0.0/0"]
}
ingress {
description="RDP for VPC"from_port=3389to_port=3389protocol="tcp"cidr_blocks=["0.0.0.0/0"]
}
egress {
description="egress for VPC"from_port=0to_port=0protocol="-1"cidr_blocks=["0.0.0.0/0"]
}
tags={
Name ="allow_runner"
}
depends_on=[
aws_vpc.gh-runners
]
}
The RabbitMQ password is generated and stored in plain text using random_password. Ensure that this is securely managed and not exposed inadvertently.
resource"random_password""rabbitmq_password" {
length=15special=true# Includes special charactersoverride_special="!@#$%^&*()-_=+[]{}<>:?"
}
variable"private_subnet_cidrs" {
default=["10.0.1.0/24", "10.0.2.0/24", "10.0.3.0/24"]
}
resource"aws_mq_broker""rabbitmq_broker_primary" {
broker_name="auto-drive-rabbitmq-broker-primary"engine_type="RabbitMQ"engine_version=var.rabbitmq_versionauto_minor_version_upgrade=trueauthentication_strategy="simple"host_instance_type=var.rabbitmq_instance_type# t3.micro is the smallest instance type available for Amazon MQ, use mq.m5.large for productionsecurity_groups=[aws_security_group.rabbitmq_broker_primary.id]
deployment_mode=var.rabbitmq_deployment_mode_staging# change to CLUSTER_MULTI_AZ for productionstorage_type="ebs"apply_immediately=truesubnet_ids=[element(module.vpc.private_subnets, 0)] # Use private subnets from VPC module, in single AZ deployment, use only one subnet, in multi-AZ deployment, use multiple subnetspublicly_accessible=falseencryption_options {
use_aws_owned_key=falsekms_key_id=aws_kms_key.mq_kms_key.arn
}
logs {
general=trueaudit=false
}
maintenance_window_start_time {
day_of_week="SUNDAY"time_of_day="03:00"time_zone="UTC"
}
user {
username=var.rabbitmq_usernamepassword=random_password.rabbitmq_password.result
}
Enable http_tokens to be set as required in the metadata_options block to enforce the use of Instance Metadata Service Version 2 (IMDSv2) for enhanced security.
Why: Enforcing IMDSv2 by setting http_tokens to required significantly improves the security of the instance by mitigating potential metadata service vulnerabilities. This is a highly impactful and necessary change.
High
Increase password length for security
Ensure that the random_password resource uses a secure and appropriate length for the password, as 15 characters may not meet the security requirements for all environments. Consider increasing the length to at least 20 characters for enhanced security.
resource "random_password" "rabbitmq_password" {
- length = 15+ length = 20
special = true # Includes special characters
override_special = "!@#$%^&*()-_=+[]{}<>:?"
}
Suggestion importance[1-10]: 9
__
Why: Increasing the password length from 15 to 20 characters enhances security by making brute-force attacks more difficult. This is a valid and impactful improvement for environments requiring strong security measures.
High
Secure sensitive values using variables
Ensure that sensitive information such as the value field in cloudflare_record resources (e.g., IP addresses and TXT values) is securely managed using variables or secrets to avoid exposing them directly in the codebase.
resource "cloudflare_record" "subspace_foundation_1" {
name = "subspace.foundation"
proxied = false
ttl = 3600
type = "A"
- value = "192.64.119.47"+ value = var.subspace_foundation_ip
zone_id = data.cloudflare_zone.subspace_foundation.id
}
Suggestion importance[1-10]: 9
__
Why: This suggestion improves security by replacing hardcoded sensitive values with variables, reducing the risk of exposing sensitive information in the codebase. It is highly relevant and directly applicable to the provided code.
High
Encrypt private key in Secrets Manager
Encrypt the private key stored in AWS Secrets Manager to enhance security and prevent unauthorized access.
Why: Encrypting the private key before storing it in AWS Secrets Manager enhances security by ensuring the key is not stored in plaintext. This is a critical improvement for protecting sensitive data.
High
Restrict overly permissive egress rules
Validate that the aws_security_group egress rule allowing all traffic (0.0.0.0/0) is necessary. If not, restrict it to specific IP ranges or ports to minimize potential security risks.
Why: Restricting the egress rule from allowing all traffic to specific IP ranges or ports reduces the attack surface and enhances security. This suggestion is relevant and addresses a potential security risk effectively.
Medium
Restrict overly permissive ingress defaults
Review the default value for ingress_cidr_blocks set to ["0.0.0.0/0"], as it allows unrestricted access. Restrict it to specific IP ranges to enhance security.
variable "ingress_cidr_blocks" {
description = "List of CIDR blocks for ingress"
type = list(string)
- default = ["0.0.0.0/0"] # Open to all; adjust as needed+ default = ["specific_ip_range"] # Restrict access
}
Suggestion importance[1-10]: 8
__
Why: Restricting the default ingress CIDR block from allowing unrestricted access to specific IP ranges improves security by limiting exposure. This is a valid and important enhancement for secure configurations.
Medium
General
Increase TTL for DNS efficiency
Add a ttl value greater than 1 for the mail record to avoid unnecessary DNS query overhead and improve performance.
resource "cloudflare_record" "mail" {
name = "mail"
proxied = true
- ttl = 1+ ttl = 3600
type = "CNAME"
value = "subspace.network"
zone_id = data.cloudflare_zone.subspace_network.id
}
Suggestion importance[1-10]: 9
__
Why: Increasing the TTL from 1 to 3600 reduces unnecessary DNS query overhead and improves performance. This is a significant improvement for efficiency and aligns with best practices.
High
Replace hardcoded IPs with variables
Avoid using hardcoded IP addresses for resources like blog_0 and blog_1. Instead, consider using variables or data sources to improve maintainability and flexibility.
resource "cloudflare_record" "blog_0" {
comment = "Medium .blog Redirect #2"
name = "blog"
proxied = false
ttl = 3600
type = "A"
- value = "162.159.152.4"+ value = var.blog_redirect_ip
zone_id = data.cloudflare_zone.subspace_network.id
}
Suggestion importance[1-10]: 8
__
Why: Replacing hardcoded IP addresses with variables improves maintainability and flexibility, making the code easier to update and adapt to changes. This is a meaningful enhancement to the PR.
Medium
Validate CIDR format for vpc_cidr
Add validation for the vpc_cidr variable to ensure it follows the correct CIDR format, preventing misconfigurations during deployment.
variable "vpc_cidr" {
description = "CIDR block for VPC"
type = string
default = "10.0.0.0/16"
+ validation {+ condition = can(regex("^([0-9]{1,3}\\.){3}[0-9]{1,3}/[0-9]{1,2}$", var.vpc_cidr))+ error_message = "The VPC CIDR must be a valid CIDR block."+ }
}
Suggestion importance[1-10]: 8
__
Why: Adding validation for the vpc_cidr variable ensures that only valid CIDR blocks are used, preventing potential misconfigurations. This is a practical enhancement to the code's robustness.
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PR Type
enhancement, configuration changes, dependencies
Description
Reorganized Terraform files for better structure and clarity.
Added configurations for GitHub runners, DNS records, and network setups.
Changes walkthrough 📝
5 files
Added configurations for GitHub runners on AWSConfigured RabbitMQ broker and security groupsAdded outputs for Auto-Drive and Gateway instancesConfigured network for GitHub runnersAdded network configurations for EKS clusters10 files
Added DNS records for autonomys.xyz domainAdded multiple DNS records for subspace networkAdded mailserver DNS records for subspace.networkAdded DNS records for subspace.foundation domainAdded variables for EKS Blue environmentAdded variables for EKS Green environmentAdded variables for Auto-Drive infrastructureAdded variables for Gemini-3H networkAdded variables for Taurus networkAdded DNS records for autonomys.net domain3 files
Configured Packer for Ubuntu Jammy AMI buildsConfigured Packer for Windows Core 2022 AMI buildsUpdated Terraform and AWS provider versions101 files