Add Terraform State Management and Remote Backend Configuration for Day 4 of TerraWeek #24
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WalkthroughThe changes introduce a series of Terraform configurations and documentation files across multiple days, focusing on infrastructure management using AWS services. New files provide comprehensive guides on Terraform, including installation, configuration, and state management. Key components include provider settings, resource definitions for EC2 instances, S3 buckets, and DynamoDB tables, as well as variable declarations for dynamic configurations. Some files were deleted, indicating a shift in approach or focus. Overall, the updates enhance the structure and usability of the Terraform setup for managing AWS resources. Changes
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Actionable comments posted: 15
🧹 Outside diff range and nitpick comments (12)
day02/main.tf (1)
11-13: Make region configurable and document authenticationConsider the following improvements:
- Make the region configurable via a variable
- Document required AWS authentication method (environment variables, shared credentials, etc.)
+variable "aws_region" { + description = "AWS region to deploy resources" + type = string + default = "us-west-2" +} provider "aws" { - region = "us-west-2" + region = var.aws_region }Add a comment or README section explaining the required AWS authentication:
# Authentication: Configure AWS credentials via environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY), # shared credentials file (~/.aws/credentials), or IAM roles.day02/solution.md (2)
58-59: Improve image references and add alt textThe image references might break if the images are moved. Consider:
- Using relative paths from the repository root
- Adding meaningful alt text for accessibility
-  +  -  +  -  + Also applies to: 66-67, 74-75
80-98: Add section on Terraform best practicesThe example is good, but consider adding a section on Terraform best practices such as:
- Using workspaces for environment separation
- Implementing state backends for team collaboration
- Adding resource tagging for cost tracking
- Using data sources for existing resources
- Implementing proper state locking
Example addition for resource tagging:
resource "aws_s3_bucket" "example" { bucket = var.bucket_name + tags = { + Environment = terraform.workspace + Project = "TerraWeek" + ManagedBy = "Terraform" + } }🧰 Tools
🪛 Markdownlint (0.37.0)
80-80: Punctuation: ':'
Trailing punctuation in heading(MD026, no-trailing-punctuation)
day01/solution.md (2)
1-4: Fix heading hierarchyThe document heading structure should increment by only one level at a time. Consider updating the heading levels:
-# TerraWeek Day 1 - -### **Day 1: Introduction to Terraform and Terraform Basics** +# TerraWeek Day 1 + +## **Day 1: Introduction to Terraform and Terraform Basics**🧰 Tools
🪛 Markdownlint (0.37.0)
3-3: Expected: h2; Actual: h3
Heading levels should only increment by one level at a time(MD001, heading-increment)
70-73: Enhance security of installation commandsThe current installation process could be more secure. Consider adding package verification:
-wget -O - https://apt.releases.hashicorp.com/gpg | sudo gpg --dearmor -o /usr/share/keyrings/hashicorp-archive-keyring.gpg +# Download GPG key and verify its fingerprint +wget -O- https://apt.releases.hashicorp.com/gpg | gpg --show-keys --fingerprint +# Verify the fingerprint matches: 798A EC65 4E5C 1542 8C8E 42EE AA16 FCBC A621 E701 +wget -O- https://apt.releases.hashicorp.com/gpg | sudo gpg --dearmor -o /usr/share/keyrings/hashicorp-archive-keyring.gpgAlso, consider pinning the AWS CLI version for better reproducibility:
-sudo apt update && sudo apt install awscli +sudo apt update && sudo apt install awscli=2.15.0-1day03/ec2.tf (1)
83-98: Avoid using provisioners; use 'user_data' instead for instance initializationProvisioners are generally discouraged because they can introduce instability and unreliability in your infrastructure. It's better to use the
user_dataattribute to run initialization scripts during the instance boot process.Apply this diff to refactor your EC2 instance resource:
resource "aws_instance" "my_instance" { ami = data.aws_ami.ubuntu.id instance_type = var.aws_instance_type key_name = aws_key_pair.terraweek_key.key_name vpc_security_group_ids = [aws_security_group.my_terraweek_sg.id] + user_data = <<-EOF + #!/bin/bash + sudo apt update + sudo apt install -y nginx + sudo systemctl start nginx + sudo systemctl enable nginx + EOF - provisioner "remote-exec" { - inline = [ - "sudo apt update", - "sudo apt install -y nginx", - "sudo systemctl start nginx", - "sudo systemctl enable nginx" - ] - - connection { - type = "ssh" - user = "ubuntu" - private_key = file(var.aws_private_key_pair_name) - host = self.public_ip - } - } root_block_device { volume_size = var.aws_instance_volume_size volume_type = var.aws_instance_volume_type } # Rest of the configuration }day04/terraform_backend/s3.tf (1)
1-7: Enhance S3 bucket security by enabling encryption and versioningIt's recommended to enable server-side encryption and versioning on S3 buckets to protect data and maintain data integrity. This adds an extra layer of security and allows you to recover from accidental deletions or overwrites.
Apply this diff to update the S3 bucket configuration:
resource "aws_s3_bucket" "my_bucket" { bucket = var.aws_s3_bucket_name + versioning { + enabled = true + } + + server_side_encryption_configuration { + rule { + apply_server_side_encryption_by_default { + sse_algorithm = "AES256" + } + } + } tags = { Name = var.aws_s3_bucket_name } }day04/terraform_backend/variable.tf (1)
7-11: Consider region configuration best practicesWhile providing a default region is helpful, it might not be optimal for all users.
Consider:
- Using environment variables instead of hardcoded defaults
- Adding validation for supported regions
- Documenting the reason for choosing eu-west-1 as default
day03/variable.tf (3)
113-139: Add constraints for instance configurationThe EC2 instance variables should have validation to ensure proper values:
variable "aws_instance_type" { description = "Type of EC2 instance to be launched" type = string default = "t2.micro" + validation { + condition = can(regex("^t2\\.", var.aws_instance_type)) + error_message = "Only t2 instance types are allowed for cost control." + } } variable "aws_instance_volume_size" { description = "Size of the root volume in GB" type = number default = 10 + validation { + condition = var.aws_instance_volume_size >= 8 && var.aws_instance_volume_size <= 100 + error_message = "Volume size must be between 8 and 100 GB." + } }
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248-256: Add versioning and encryption configuration for state bucketThe S3 bucket configuration for state storage should include additional security measures:
resource "aws_s3_bucket" "terraform_state" { bucket = var.aws_s3_bucket_name versioning { enabled = true } + server_side_encryption_configuration { + rule { + apply_server_side_encryption_by_default { + sse_algorithm = "AES256" + } + } + } + lifecycle { + prevent_destroy = true + } tags = { Name = var.aws_s3_bucket_name } }
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305-311: Add encryption and versioning configuration to backendThe S3 backend configuration should specify encryption and versioning settings:
backend "s3" { bucket = "terraweek-day04-bucket-name" key = "terraform.tfstate" region = "eu-west-1" dynamodb_table = "terraweek-day04-table-name" + encrypt = true + kms_key_id = "alias/terraform-bucket-key" }day03/solution.md (1)
140-144: Consider expanding lifecycle configurationsThe lifecycle block could be enhanced to handle more scenarios:
- Consider adding more attributes to
ignore_changes(e.g.,instance_typefor blue-green deployments)- Document the rationale for
prevent_destroy = falsein commentslifecycle { create_before_destroy = true # Create the new instance before destroying the old one prevent_destroy = false # Allow the resource to be destroyed - ignore_changes = [tags] # Ignore changes to the tags + ignore_changes = [ + tags, # Ignore changes to tags + instance_type, # Ignore instance type changes for blue-green deployments + user_data # Ignore user data changes + ] }
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⛔ Files ignored due to path filters (30)
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📒 Files selected for processing (23)
day01/solution.md(1 hunks)day02/main.tf(1 hunks)day02/solution.md(1 hunks)day02/variable.tf(1 hunks)day03/ec2.tf(1 hunks)day03/main.tf(1 hunks)day03/output.tf(1 hunks)day03/solution.md(1 hunks)day03/terraform.tf(1 hunks)day03/variable.tf(1 hunks)day04/backend_demo/providers.tf(0 hunks)day04/backend_demo/resources.tf(0 hunks)day04/backend_demo/terraform.tf(0 hunks)day04/backend_infra/providers.tf(0 hunks)day04/backend_infra/resources.tf(0 hunks)day04/backend_infra/variables.tf(0 hunks)day04/solution.md(1 hunks)day04/tasks.md(0 hunks)day04/terraform_backend/dynamodb.tf(1 hunks)day04/terraform_backend/providers.tf(1 hunks)day04/terraform_backend/s3.tf(1 hunks)day04/terraform_backend/terraform.tf(1 hunks)day04/terraform_backend/variable.tf(1 hunks)
💤 Files with no reviewable changes (7)
- day04/backend_demo/providers.tf
- day04/backend_infra/providers.tf
- day04/backend_demo/resources.tf
- day04/backend_demo/terraform.tf
- day04/backend_infra/resources.tf
- day04/backend_infra/variables.tf
- day04/tasks.md
✅ Files skipped from review due to trivial changes (2)
- day03/main.tf
- day04/terraform_backend/terraform.tf
🧰 Additional context used
🪛 checkov (3.2.334)
day04/terraform_backend/dynamodb.tf
[HIGH] 1-14: Ensure DynamoDB point in time recovery (backup) is enabled
(CKV_AWS_28)
day03/ec2.tf
[HIGH] 67-106: Ensure Instance Metadata Service Version 1 is not enabled
(CKV_AWS_79)
🪛 Markdownlint (0.37.0)
day02/solution.md
80-80: Punctuation: ':'
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day01/solution.md
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day04/solution.md
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day03/solution.md
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🪛 LanguageTool
day04/solution.md
[grammar] ~25-~25: You’ve repeated a verb. Did you mean to only write one of them?
Context: ...stroyed. 2. Efficient Infrastructure Changes - Change Detection: Terraform compares the des...
(REPEATED_VERBS)
[uncategorized] ~46-~46: Loose punctuation mark.
Context: ...in the state. - terraform state mv: Moves resources to a new state. - `...
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[uncategorized] ~47-~47: Loose punctuation mark.
Context: ... a new state. - terraform state rm: Removes resources from the state. --- ...
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[uncategorized] ~246-~246: Loose punctuation mark.
Context: ...cket and DynamoDB table: s3.tf: ```hcl resource "aws_s3_bucket" "...
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[uncategorized] ~259-~259: Loose punctuation mark.
Context: ... } } **`dynamodb.tf`**: hcl resource "aws_dynamodb_tab...
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[uncategorized] ~277-~277: Loose punctuation mark.
Context: ... } } **`variables.tf`**: hcl variable "aws_s3_bucket_na...
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[uncategorized] ~303-~303: Loose punctuation mark.
Context: ...r terraform.tf: terraform.tf: ```hcl backend "s3" { bu...
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day03/solution.md
[uncategorized] ~55-~55: Did you mean “applies” or “applied”?
Context: ...](images/task2.3.2.png) - Terraform apply : 
[uncategorized] ~104-~104: Did you mean “applies” or “applied”?
Context: ...--auto-approve ``` - Terraform apply images: 
[uncategorized] ~126-~126: Did you mean “destroys” or “destroyed”?
Context: ...ype yes to proceed). - Terraform destroy images : 
[uncategorized] ~152-~152: Loose punctuation mark.
Context: ...) - create_before_destroy = true: - This ensures that Terraform create...
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[uncategorized] ~155-~155: Loose punctuation mark.
Context: ...stance. - prevent_destroy = false: - This allows the resource to be des...
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Context: ...) - ignore_changes = [tags]: - This instructs Terraform to ignore...
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🔇 Additional comments (5)
day04/terraform_backend/providers.tf (1)
1-3: AWS provider configuration looks good
The AWS provider is correctly configured with a variable region, allowing flexibility for deployment in different regions.
day03/terraform.tf (1)
5-5: Verify compatibility with AWS provider version 5.x
Upgrading the AWS provider to version ~> 5.0 can introduce breaking changes. Ensure that all resources and configurations are compatible with the new provider version. Review the AWS provider version 5 upgrade guide provided by HashiCorp.
day03/output.tf (1)
1-11: Verify EC2 instance reference
The output configuration looks good, but let's verify the referenced EC2 instance exists.
✅ Verification successful
EC2 instance reference verified successfully
The aws_instance.my_instance resource exists in day03/ec2.tf, confirming that the output variables are correctly referencing a valid EC2 instance resource.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check if the referenced EC2 instance exists in the configuration
rg -l "resource\s+\"aws_instance\"\s+\"my_instance\"" day03/
Length of output: 71
day03/variable.tf (1)
74-89: 🛠️ Refactor suggestion
Add error handling to the provisioner block
The remote-exec provisioner should include error handling and timeout settings:
provisioner "remote-exec" {
+ on_failure = continue
+ timeout = "5m"
inline = [
"sudo apt update",
"sudo apt install -y nginx",
"sudo systemctl start nginx",
"sudo systemctl enable nginx"
]
connection {
type = "ssh"
user = "ubuntu"
private_key = file(var.aws_private_key_pair_name)
host = self.public_ip
+ timeout = "2m"
}
}Likely invalid or redundant comment.
day03/solution.md (1)
74-89: Verify SSH key handling and consider security improvements
The provisioner block looks functional but could benefit from security enhancements:
- Consider adding
timeoutsettings for the SSH connection - Add
host_keyverification settings - Consider using AWS Systems Manager Session Manager instead of direct SSH access
provisioner "remote-exec" {
inline = [
"sudo apt update",
"sudo apt install -y nginx",
"sudo systemctl start nginx",
"sudo systemctl enable nginx"
]
connection {
type = "ssh"
user = "ubuntu"
private_key = file(var.aws_private_key_pair_name)
host = self.public_ip
+ timeout = "5m"
+ host_key = "strict"
}
}| variable "bucket_name" { | ||
| description = "The name of the S3 bucket" | ||
| type = string | ||
| default = "my-default-bucket" | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add validation block for S3 bucket naming rules
While the variable definition is good, S3 bucket names must follow specific AWS constraints. Consider adding a validation block to ensure compliance with S3 naming rules:
variable "bucket_name" {
description = "The name of the S3 bucket"
type = string
default = "my-default-bucket"
+ validation {
+ condition = can(regex("^[a-z0-9][a-z0-9.-]*[a-z0-9]$", var.bucket_name)) && length(var.bucket_name) >= 3 && length(var.bucket_name) <= 63
+ error_message = "Bucket name must be between 3 and 63 characters, contain only lowercase letters, numbers, dots, and hyphens, and start/end with a letter or number."
+ }
}Also, consider using a more unique default bucket name to avoid conflicts, perhaps incorporating a project-specific prefix.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| variable "bucket_name" { | |
| description = "The name of the S3 bucket" | |
| type = string | |
| default = "my-default-bucket" | |
| } | |
| variable "bucket_name" { | |
| description = "The name of the S3 bucket" | |
| type = string | |
| default = "my-default-bucket" | |
| validation { | |
| condition = can(regex("^[a-z0-9][a-z0-9.-]*[a-z0-9]$", var.bucket_name)) && length(var.bucket_name) >= 3 && length(var.bucket_name) <= 63 | |
| error_message = "Bucket name must be between 3 and 63 characters, contain only lowercase letters, numbers, dots, and hyphens, and start/end with a letter or number." | |
| } | |
| } |
| terraform { | ||
| required_providers { | ||
| aws = { | ||
| source = "hashicorp/aws" | ||
| version = "~> 3.0" | ||
| } | ||
| } | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Update AWS provider version to latest stable release
The current AWS provider version (~> 3.0) is outdated. Consider updating to the latest stable version (5.x) to benefit from new features, improvements, and security fixes.
required_providers {
aws = {
source = "hashicorp/aws"
- version = "~> 3.0"
+ version = "~> 5.0"
}
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| terraform { | |
| required_providers { | |
| aws = { | |
| source = "hashicorp/aws" | |
| version = "~> 3.0" | |
| } | |
| } | |
| } | |
| terraform { | |
| required_providers { | |
| aws = { | |
| source = "hashicorp/aws" | |
| version = "~> 5.0" | |
| } | |
| } | |
| } |
| - Go to the **IAM Management Console** in AWS. | ||
| - Create a new IAM user with **programmatic access**. | ||
| - Attach the necessary policies (e.g., `AdministratorAccess` or policies tailored to your use case). | ||
| - Note down the **Access Key ID** and **Secret Access Key**. |
There was a problem hiding this comment.
Enhance security best practices for AWS setup
The current IAM setup recommends AdministratorAccess, which violates the principle of least privilege. Consider:
- Creating a custom IAM policy with only the necessary permissions for Terraform operations
- Using AWS Organizations and SCPs for additional security guardrails
- Implementing temporary credentials or AWS IAM Roles where possible
Would you like me to help create a custom IAM policy template that follows security best practices?
| resource "aws_s3_bucket" "example" { | ||
| bucket = "example-bucket" | ||
| tags = { | ||
| Name = "example-bucket" | ||
| } | ||
| } | ||
| ``` |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Enhance S3 bucket example with security best practices
The S3 bucket example lacks essential security configurations. Consider adding:
resource "aws_s3_bucket" "example" {
bucket = "example-bucket"
tags = {
Name = "example-bucket"
}
}
+
+resource "aws_s3_bucket_versioning" "example" {
+ bucket = aws_s3_bucket.example.id
+ versioning_configuration {
+ status = "Enabled"
+ }
+}
+
+resource "aws_s3_bucket_server_side_encryption_configuration" "example" {
+ bucket = aws_s3_bucket.example.id
+ rule {
+ apply_server_side_encryption_by_default {
+ sse_algorithm = "AES256"
+ }
+ }
+}
+
+resource "aws_s3_bucket_public_access_block" "example" {
+ bucket = aws_s3_bucket.example.id
+ block_public_acls = true
+ block_public_policy = true
+ ignore_public_acls = true
+ restrict_public_buckets = true
+}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| resource "aws_s3_bucket" "example" { | |
| bucket = "example-bucket" | |
| tags = { | |
| Name = "example-bucket" | |
| } | |
| } | |
| ``` | |
| resource "aws_s3_bucket" "example" { | |
| bucket = "example-bucket" | |
| tags = { | |
| Name = "example-bucket" | |
| } | |
| } | |
| resource "aws_s3_bucket_versioning" "example" { | |
| bucket = aws_s3_bucket.example.id | |
| versioning_configuration { | |
| status = "Enabled" | |
| } | |
| } | |
| resource "aws_s3_bucket_server_side_encryption_configuration" "example" { | |
| bucket = aws_s3_bucket.example.id | |
| rule { | |
| apply_server_side_encryption_by_default { | |
| sse_algorithm = "AES256" | |
| } | |
| } | |
| } | |
| resource "aws_s3_bucket_public_access_block" "example" { | |
| bucket = aws_s3_bucket.example.id | |
| block_public_acls = true | |
| block_public_policy = true | |
| ignore_public_acls = true | |
| restrict_public_buckets = true | |
| } |
| ami = data.aws_ami.ubuntu.id | ||
| instance_type = var.aws_instance_type | ||
| key_name = aws_key_pair.terraweek_key.key_name | ||
| security_groups = [aws_security_group.my_terraweek_sg.name] |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Use Security Group IDs instead of names in 'security_groups'
It's recommended to use security group IDs (id) instead of names (name) when specifying security groups in your EC2 instance configuration. Security group names are not unique and can lead to unexpected behavior.
Apply this diff to update the configuration:
- security_groups = [aws_security_group.my_terraweek_sg.name]
+ vpc_security_group_ids = [aws_security_group.my_terraweek_sg.id]📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| security_groups = [aws_security_group.my_terraweek_sg.name] | |
| vpc_security_group_ids = [aws_security_group.my_terraweek_sg.id] |
| # Path to the private key file for SSH access | ||
| variable "aws_private_key_pair_name" { | ||
| description = "Path to the private key pair for SSH" | ||
| type = string | ||
| default = "~/terraweek-key" | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consider adding validation for the private key path
The private key path variable should be validated to ensure it exists and has correct permissions.
Add validation block:
variable "aws_private_key_pair_name" {
description = "Path to the private key pair for SSH"
type = string
default = "~/terraweek-key"
+ validation {
+ condition = fileexists(var.aws_private_key_pair_name)
+ error_message = "The specified private key file does not exist."
+ }
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| # Path to the private key file for SSH access | |
| variable "aws_private_key_pair_name" { | |
| description = "Path to the private key pair for SSH" | |
| type = string | |
| default = "~/terraweek-key" | |
| } | |
| # Path to the private key file for SSH access | |
| variable "aws_private_key_pair_name" { | |
| description = "Path to the private key pair for SSH" | |
| type = string | |
| default = "~/terraweek-key" | |
| validation { | |
| condition = fileexists(var.aws_private_key_pair_name) | |
| error_message = "The specified private key file does not exist." | |
| } | |
| } |
| variable "ssh_cidr" { | ||
| description = "CIDR block for SSH access" | ||
| type = string | ||
| default = "0.0.0.0/0" | ||
| } |
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💡 Codebase verification
Security Risk: Confirmed overly permissive security group configuration
The verification confirms that the default CIDR range 0.0.0.0/0 is directly used in the EC2 security group configuration, allowing unrestricted access from any IP address to SSH (port 22), HTTP (port 80), and HTTPS (port 443) ports. This is a significant security concern, especially for SSH access.
day03/ec2.tf: Security group ingress rules use unrestricted CIDR blocks for:- SSH (port 22)
- HTTP (port 80)
- HTTPS (port 443)
Recommendations:
- For SSH access: Restrict to your organization's IP range or VPN
- For HTTP/HTTPS: If this is a public-facing service, consider using a WAF or load balancer as the entry point instead of direct access
- Remove the permissive defaults and require explicit CIDR ranges to be provided
🔗 Analysis chain
Security Warning: Overly permissive CIDR ranges in default values
The default CIDR ranges (0.0.0.0/0) for SSH, HTTP, and HTTPS access allow traffic from any IP address, which poses a security risk. Consider restricting these to specific IP ranges.
Also applies to: 71-76, 85-90
Let me check how these CIDR variables are actually used in the security group configurations.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check if these CIDR ranges are used in security group configurations
rg -A 5 "0.0.0.0/0" --type tf
Length of output: 1110
Script:
#!/bin/bash
# Check security group configurations that use these variables
rg -B 2 -A 5 "var\.(ssh|http|https)_cidr" --type tf
Length of output: 981
| resource "aws_dynamodb_table" "terraform_locks" { | ||
| name = var.aws_dynamodb_table_name | ||
| billing_mode = var.aws_dynamodb_billing_mode | ||
| hash_key = var.aws_dynamodb_table_haskey | ||
|
|
||
| attribute { | ||
| name = var.aws_dynamodb_table_haskey | ||
| type = "S" | ||
| } | ||
|
|
||
| tags = { | ||
| Name = var.aws_dynamodb_table_name | ||
| } | ||
| } |
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🛠️ Refactor suggestion
Enable point-in-time recovery for DynamoDB
Consider enabling point-in-time recovery for the DynamoDB table to protect against accidental writes or deletions:
resource "aws_dynamodb_table" "terraform_locks" {
name = var.aws_dynamodb_table_name
billing_mode = var.aws_dynamodb_billing_mode
hash_key = var.aws_dynamodb_table_haskey
+ point_in_time_recovery {
+ enabled = true
+ }
attribute {
name = var.aws_dynamodb_table_haskey
type = "S"
}
tags = {
Name = var.aws_dynamodb_table_name
}
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| resource "aws_dynamodb_table" "terraform_locks" { | |
| name = var.aws_dynamodb_table_name | |
| billing_mode = var.aws_dynamodb_billing_mode | |
| hash_key = var.aws_dynamodb_table_haskey | |
| attribute { | |
| name = var.aws_dynamodb_table_haskey | |
| type = "S" | |
| } | |
| tags = { | |
| Name = var.aws_dynamodb_table_name | |
| } | |
| } | |
| resource "aws_dynamodb_table" "terraform_locks" { | |
| name = var.aws_dynamodb_table_name | |
| billing_mode = var.aws_dynamodb_billing_mode | |
| hash_key = var.aws_dynamodb_table_haskey | |
| point_in_time_recovery { | |
| enabled = true | |
| } | |
| attribute { | |
| name = var.aws_dynamodb_table_haskey | |
| type = "S" | |
| } | |
| tags = { | |
| Name = var.aws_dynamodb_table_name | |
| } | |
| } |
| backend "s3" { | ||
| bucket = "terraweek-day04-bucket-name" | ||
| key = "terraform.tfstate" | ||
| region = "eu-west-1" | ||
| dynamodb_table = "terraweek-day04-table-name" | ||
| } | ||
| ``` |
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🛠️ Refactor suggestion
Enhance backend configuration with encryption and workspace support
The S3 backend configuration should include encryption settings and consider workspace support for different environments:
backend "s3" {
bucket = "terraweek-day04-bucket-name"
key = "terraform.tfstate"
region = "eu-west-1"
dynamodb_table = "terraweek-day04-table-name"
+ encrypt = true
+ workspace_key_prefix = "env" # Creates separate state files for different environments
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| backend "s3" { | |
| bucket = "terraweek-day04-bucket-name" | |
| key = "terraform.tfstate" | |
| region = "eu-west-1" | |
| dynamodb_table = "terraweek-day04-table-name" | |
| } | |
| ``` | |
| backend "s3" { | |
| bucket = "terraweek-day04-bucket-name" | |
| key = "terraform.tfstate" | |
| region = "eu-west-1" | |
| dynamodb_table = "terraweek-day04-table-name" | |
| encrypt = true | |
| workspace_key_prefix = "env" # Creates separate state files for different environments | |
| } |
| resource "aws_s3_bucket" "terraform_state" { | ||
| bucket = var.aws_s3_bucket_name | ||
| versioning { | ||
| enabled = true | ||
| } | ||
| tags = { | ||
| Name = var.aws_s3_bucket_name | ||
| } | ||
| } | ||
| ``` |
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Enhance S3 bucket security configuration
The S3 bucket configuration for storing Terraform state should include additional security measures:
resource "aws_s3_bucket" "terraform_state" {
bucket = var.aws_s3_bucket_name
versioning {
enabled = true
}
+ # Enable server-side encryption
+ server_side_encryption_configuration {
+ rule {
+ apply_server_side_encryption_by_default {
+ sse_algorithm = "AES256"
+ }
+ }
+ }
+ # Block public access
+ block_public_access {
+ block_public_acls = true
+ block_public_policy = true
+ ignore_public_acls = true
+ restrict_public_buckets = true
+ }
tags = {
Name = var.aws_s3_bucket_name
}
}Committable suggestion skipped: line range outside the PR's diff.
This PR introduces the implementation of Terraform state management as part of Day 4 of the TerraWeek challenge. It includes:
Terraform State: An exploration of the importance of Terraform state in infrastructure management, including how it tracks resource configurations, enables efficient updates, and supports collaboration with remote state storage.
Local State Implementation: A hands-on example of using local state by creating an S3 bucket in AWS and applying the configuration to generate a local
terraform.tfstatefile.terraform stateCommands: Practical usage ofterraform statecommands such aslist,show,mv, andrmto manage state files effectively.Remote State Setup: A detailed configuration of remote state storage using AWS S3 and DynamoDB for state locking. The PR includes:
Summary by CodeRabbit
New Features
.gitignorefile to manage ignored files in the repository.Bug Fixes
Documentation
Chores