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k8s-terraform/main.tf

143 lines
5.1 KiB
HCL

locals {
nodes-config = {
"master" = {
base-image = var.ubuntu-ami
num = 1
},
"worker" = {
base-image = var.ubuntu-ami
num = 2
}
}
install-qemu-agent = false
}
################################################################################
# cloud-init
################################################################################
module "cloud-init-config" {
for_each = local.nodes-config
source = "./modules/cloud-init-config"
cloud-init-template = "${path.module}/cloud_init.cfg"
hostname-prefix = "${var.vm-name-prefix}-${each.key}"
num = each.value.num
root-admin-passwd = var.root-admin-passwd
root-admin-pub-key = var.root-admin-pub-key
install-qemu-agent = local.install-qemu-agent
}
################################################################################
# aws
# To use the aws module, uncomment the aws modules/resources and comment out the
# libvirt modules/resources.
################################################################################
# This module will grab the latest ami for a variety of distros. Uncomment to
# get a list of the latest AMIs for our supported distros.
# module "aws-amis" {
# source = "./modules/aws-amis"
# }
# output "amis" {
# value = module.aws-amis.amis
# }
################################################################################
# AWS Networking
# Use of the 2 modules below to create resources for the AWS network.
# aws-network-from-scratch will build the AWS network from scratch.
# aws-network-existing will query AWS for an existing VPC.
################################################################################
# module "aws-network-from-scratch" {
# source = "./modules/aws-network-from-scratch"
# name-prefix = var.vm-name-prefix
# vpc-cidr-block = var.aws-vpc-cidr-block
# subnet-cidr-block = var.aws-subnet-cidr-block
# admin-ips = var.admin-ips
# }
module "aws-network-existing" {
source = "./modules/aws-network-existing"
default-vpc-name = var.aws-existing-vpc-name
default-security-group-name = var.aws-existing-sg-name
}
################################################################################
# This key pair is not actually used. Keys are added to the nodes via cloud-init
# instead. We just add this here that this key will show up in the AWS console."
resource "aws_key_pair" "key" {
key_name = "${var.vm-name-prefix}-key}"
public_key = var.root-admin-pub-key
tags = {
Name = "${var.vm-name-prefix}-key"
}
}
module "nodes" {
for_each = local.nodes-config
source = "./modules/aws-nodes"
ami = each.value.base-image
ec2-instance-type = var.aws-ec2-instance-type
subnet-id = module.aws-network-existing.k8s-subnets-ids[0]
security-group-ids = [module.aws-network-existing.default-sg.id]
user-datas = lookup(module.cloud-init-config, each.key, null).user-datas
num-nodes = each.value.num
name-prefix = "${var.vm-name-prefix}-${each.key}"
}
################################################################################
# end aws
################################################################################
################################################################################
# libvirt
# To use the libvirt module, uncomment the libvirt modules/resources and comment
# out the aws modules/resources.
################################################################################
# provider "libvirt" {
# uri = var.libvirt-connection-url
# }
#
# module "nodes" {
# for_each = local.nodes-config
# source = "./modules/libvirt-nodes"
# pool-name = libvirt_pool.images.name
# name-prefix = "${var.vm-name-prefix}-${each.key}"
# num-nodes = each.value.num
# node-memory = var.node-memory
# node-vcpus = var.node-vcpus
# node-disk-size = var.libvirt-node-disk-size
# base-image = each.value.base-image
# network-name = var.libvirt-network-name
# root-admin-passwd = var.root-admin-passwd
# root-admin-pub-key = var.root-admin-pub-key
# libvirt-connection-url = var.libvirt-connection-url
# user-datas = lookup(module.cloud-init-config, each.key, null).user-datas
# }
#
# resource "libvirt_pool" "images" {
# name = var.disk-image-pool-name
# type = "dir"
# path = var.disk-image-dir
# }
################################################################################
# end libvirt
################################################################################
# This will outpus a map of group => [{hostname, ip}].
# TODO A 'names' output needs to be added to libvirt.
output "groups_hostnames_ips" {
value = { for type, node in module.nodes : type => zipmap(node.names, node.ips) }
}
# This will outpus a map of group => [{hostname, private_ip}].
# TODO Figure out how what to do about private_ips for libvirt.
output "groups_hostnames_private_ips" {
value = { for type, node in module.nodes : type => zipmap(node.names, node.private_ips) }
}