aws_rile added #1
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WalkthroughThis pull request introduces a new Terraform-based AWS infrastructure setup. It adds configuration files for provisioning an Amazon EKS cluster and its networking foundation via a VPC module. The changes include the definition of local variables for network settings, the AWS provider configuration with a specific version and region, and the inclusion of modules for both the EKS cluster (with IAM roles, managed node groups, and addon configurations) and a VPC (with NAT and VPN gateways). Changes
Sequence Diagram(s)sequenceDiagram
participant Operator as "User/Operator"
participant Terraform as "Terraform Engine"
participant AWS as "AWS Provider"
participant VPC as "VPC Module"
participant EKS as "EKS Module"
Operator->>Terraform: Run "terraform apply"
Terraform->>AWS: Initialize provider & load variables
AWS->>VPC: Create VPC resources (NAT, VPN, subnets)
VPC-->>AWS: Return VPC configuration
Terraform->>AWS: Provision EKS cluster and node groups
AWS->>EKS: Execute module for cluster setup (IAM roles, addons)
EKS-->>AWS: Configure EKS cluster resources
AWS-->>Terraform: Complete resource creation
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Actionable comments posted: 1
🧹 Nitpick comments (3)
eks_ckuster_modifeid/terraform.tf (1)
10-12: AWS Provider Configuration and Parameterization Suggestion
The AWS provider is correctly set to use the "eu-west-1" region. For enhanced flexibility across environments, consider parameterizing the region as a variable.eks_ckuster_modifeid/var.tf (1)
1-1: Formatting Consistency in Locals Declaration
Consider adding a space between thelocalskeyword and the opening brace for better readability (i.e., uselocals {instead oflocals{).eks_ckuster_modifeid/eks.tf (1)
1-61: EKS Module Configuration and Parameterization
The EKS module is comprehensively configured, including cluster name, version, public endpoint access, compute configuration, and addons. A couple of suggestions:
- Consider exposing frequently updated fields such as
cluster_versionand node group properties as variables to facilitate easier adjustments in the future.- Verify that the usage of
control_plane_subnet_ids(sourced frommodule.vpc.intra_subnets) aligns with your intended network isolation design for the control plane.
Overall, the module configuration is coherent and integrates well with the VPC configuration.
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📒 Files selected for processing (4)
eks_ckuster_modifeid/eks.tf(1 hunks)eks_ckuster_modifeid/terraform.tf(1 hunks)eks_ckuster_modifeid/var.tf(1 hunks)eks_ckuster_modifeid/vpc.tf(1 hunks)
🧰 Additional context used
🪛 Checkov (3.2.334)
eks_ckuster_modifeid/vpc.tf
[HIGH] 1-19: Ensure Terraform module sources use a tag with a version number
(CKV_TF_2)
🔇 Additional comments (4)
eks_ckuster_modifeid/terraform.tf (1)
1-8: Provider Version Pinning and Terraform Block Configuration
The Terraform block correctly specifies the required provider with a fixed version ("5.91.0"), which helps ensure stable behavior.eks_ckuster_modifeid/var.tf (1)
1-11: Local Variables Block Review
The local variables are clearly defined and provide a centralized configuration for the cluster name, CIDR, availability zones, and subnets. This organization improves maintainability and reuse across the configuration files.eks_ckuster_modifeid/eks.tf (2)
64-77: IAM Role Definition for EKS Node Group
The AWS IAM role (eks_node_group_role) is defined correctly with an appropriate assume role policy allowing EC2 instances to assume the role. This setup meets common best practices; just ensure that any future updates to IAM policies are reviewed against AWS recommendations.
79-93: IAM Role Policy Attachments Verification
The policy attachments for the EKS node group (Worker, CNI, and ECR read-only) are correctly implemented using well-known AWS managed policies. Ensure that these policies remain compatible with your cluster’s security requirements over time.
| module "vpc" { | ||
| source = "terraform-aws-modules/vpc/aws" | ||
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| name = "${local.name}-vpc" | ||
| cidr = local.cidr | ||
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| azs = local.azs | ||
| private_subnets = local.private_subnets | ||
| public_subnets = local.public_subnets | ||
| intra_subnets = local.intra_subnets | ||
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| enable_nat_gateway = true | ||
| enable_vpn_gateway = true | ||
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| tags = { | ||
| Terraform = "true" | ||
| Environment = "dev" | ||
| } | ||
| } |
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🛠️ Refactor suggestion
Module Source Version Pinning Recommendation
The VPC module is properly configured using the local variables; however, the module source ("terraform-aws-modules/vpc/aws") does not specify a version. To protect against upstream changes that might break your configuration, it is recommended to pin the module version (for example, adding version = "x.y.z").
🧰 Tools
🪛 Checkov (3.2.334)
[HIGH] 1-19: Ensure Terraform module sources use a tag with a version number
(CKV_TF_2)
1 participant
aws_iam_role added
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