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Terraform Module for Kubernetes Deployment on Civo Cloud

This Terraform module is designed to provision a Kubernetes cluster on Civo Cloud. It sets up Virtual Private Cloud (VPC) and Firewall configurations specifically for the cluster. Additionally, the module offers optional installations for various DevOps and cloud-native tools like Rancher, the Argo Suite, Sonatype Nexus Repository Manager, Sonatype IQ Server, and more.

Prerequisites

  • Terraform version 1.x

Features

  • Provisions a Kubernetes cluster on Civo Cloud
  • Configures a Virtual Private Cloud (VPC) and firewall rules for the Kubernetes cluster
  • Provides optional Rancher setup for Kubernetes management
  • Offers optional installation for ArgoCD, Argo Workflows, and Argo Events
  • Enables optional setup for Sonatype Nexus Repository Manager and IQ Server
  • Allows for optional Managed Civo Database integration
  • Supports optional NeuVector installation for container security
  • Facilitates optional Coder installation for development environments
  • More features can be enabled as needed

Usage

Include this module in your existing Terraform configuration files:

module "civo-cloud-native" {
  source = "./common/civo-cloud-native"

  // Civo resources
  civo_region = var.civo_region
  civo_token  = var.civo_token

  // For Cert Manager SSL Certificates via LetsEncrypt
  email = var.email

  // Database configuration (optional)
  db_name                  = "nxrmdb"
  db_node_count            = 1
  db_firewall_ingress_cidr = ["0.0.0.0/0"]

  // Sonatype License (optional)
  nexus_license_file_path = null

  // Core Dependency
  enable_kube_loadbalancer = true

  // Optional Modules
  enable_rancher                     = true
  enable_argo_suite                  = true
  proxy_argo_workflows_via_rancher   = true
  enable_nexus_rm                    = false
  enable_nexus_docker_registry       = false
  enable_nexus_iq                    = false
  proxy_nexus_iq_via_rancher         = false
  enable_managed_civo_db             = false
  enable_neuvector                   = false
  enable_coder                       = false
}

Then execute the following commands:

terraform init
terraform apply

Example Input Variables

An example file named terraform.tfvars.example is provided in the main directory. Rename this file to terraform.tfvars and populate it with the required variables:

# terraform.tfvars
civo_token  = "your_civo_api_token"
civo_region = "NYC1"
email       = "your_email@example.com"

For more advanced configurations, you can set optional variables such as db_name, enable_rancher, among others.

Inputs

Variable Description Type Default Dependencies
civo_token Civo API Token string - None
civo_region Civo region for the deployment string "NYC1" None
email Email address for LetsEncrypt certificate requests string - None
cert_manager_version cert-manager version string "1.12.2" None
rancher_version rancher version string "2.7.5" None
traefik_version traefik version string "23.1.0" None
ingress_class_name ingress class name string "traefik" None
ignore_rancher_metadata ignore rancher metadata bool false None
db_name Name of the database string "nxrmdb" None
db_node_count Number of nodes for the database int 1 None
db_firewall_ingress_cidr CIDR for ingress rules list ["0.0.0.0/0"] None
kube_config_file Path to kubeconfig file string "./artifacts..." None
nexus_license_file_path Path to Sonatype Nexus license file string null enable_nexus_rm must be true
enable_nexus_iq Enable Nexus IQ Server bool false enable_nexus_rm must be true
proxy_nexus_iq_admin_via_rancher Proxy Nexus IQ Admin Tools via Rancher bool false enable_rancher and enable_nexus_iq must be true
rancher_installed Rancher installed bool true None
artifact_output_directory Directory for output files string "./artifacts/..." None
enable_kube_loadbalancer Enables the Kubernetes load balancer bool false Core Dependency for many modules
enable_rancher Enables Rancher bool false Requires enable_kube_loadbalancer to be true
enable_argo_suite Enables the Argo Suite bool false Requires enable_kube_loadbalancer to be true

Note: More dependent variables are available for optional modules. Please refer to the variables.tf file for full details and descriptions.

Outputs

  • cluster_endpoint: The endpoint URL of the provisioned Kubernetes cluster.