Complete Kubeadm Example

The Terraform scripts use the module kubeadm to install and configure a Kubernetes cluster with Kubeadm.

First, you should have a list of barre metal ou virtual machines, and then you have to update values PUBLIC_DNS_HERE , PRIVATE_DNS_HERE and TLS_PRIVATE_KEY_FILE_HERE in the file terraform.tfvars.

Requirements

Name	Version
terraform	>= 1.0
null	~> 3.2.1
random	~> 3.5.1

Providers

Name	Version
null	~> 3.2.1
random	~> 3.5.1

Modules

Name	Source	Version
install_kubeadm_cluster	../../../kubeadm	n/a

Resources

Name	Type
null_resource.download_kubeconfig_file	resource
random_string.token_id	resource
random_string.token_secret	resource

Inputs

Name

Description

Type

Default

Required

master

The master node to be deployed.

object({
    name                     = string
    public_dns               = string # it can be private if you are inside the destination network
    private_dns              = string
    tls_private_key_pem_file = string
  })

n/a

yes

user

user used to execute docker + kubernetes scripts. must be updated accordingly with the linux image used

string

n/a

yes

workers

The worker nodes to be deployed.

map(object({
    instance_count = optional(number, 1)
    label          = optional(list(string), [])
    name           = string
    public_dns     = string
    taints         = optional(list(string), [])
  }))

n/a

yes

Outputs

Name	Description
display_nodes_command_help	A sample command to display nodes of your cluster
kubeconfig_file_export_help	Use this export to begin to use your cluster