src/foundation/microk8s/main.tf

   1 provider "aws" {
   2   region = var.aws_region
   3   access_key = var.access_key
   4   secret_key = var.secret_key
   5
   6 }
   7
   8 resource "aws_instance" "master" {
   9   ami           = var.aws_ami
  10   instance_type = var.aws_instance
  11   vpc_security_group_ids = [aws_security_group.instance.id]
  12   subnet_id =  var.aws_subnet_id
  13   user_data = <<-EOF
  14               #!/bin/bash
  15               sudo su
  16               apt update -y >> microk8s_install.log
  17               apt install snapd -y >> microk8s_install.log
  18               snap install core >> microk8s_install.log
  19               export PATH=$PATH:/snap/bin
  20               snap install microk8s --classic >> microk8s_install.log
  21               microk8s status --wait-ready
  22               microk8s enable dns >> microk8s_install.log
  23               microk8s add-node > microk8s.join_token
  24               microk8s config > configFile
  25               EOF
  26   key_name = "terraform"
  27   tags = {
  28     Name = "master"
  29   }
  30   provisioner "remote-exec" {
  31   inline = ["until [ -f /microk8s.join_token ]; do sleep 5; done; cat /microk8s.join_token",
  32             "sudo sed -i 's/#MOREIPS/IP.7 = ${self.public_ip}\\n#MOREIPS/g' /var/snap/microk8s/current/certs/csr.conf.template",
  33             "sudo sleep 1m",
  34             "sudo microk8s stop",
  35             "sudo microk8s start"
  36            ]
  37   }
  38
  39   connection {
  40     host = self.public_ip
  41     type     = "ssh"
  42     user     = "ubuntu"
  43     password = ""
  44     private_key = "${file("terraform.pem")}"
  45   }
  46
  47   provisioner "local-exec" {
  48     command = <<EOT
  49                ssh-keyscan -H ${self.public_dns} >> ~/.ssh/known_hosts
  50                scp -i terraform.pem ubuntu@${self.public_dns}:/microk8s.join_token .
  51                tail -n1 microk8s.join_token >> token
  52                scp -i terraform.pem ubuntu@${self.public_dns}:/configFile .
  53               EOT
  54   }
  55
  56   lifecycle {
  57     create_before_destroy = true
  58   }
  59 }
  60
  61 resource "aws_security_group" "instance" {
  62   name = "master_microk8s"
  63   vpc_id = var.vpc_id
  64   ingress {
  65     from_port   = 0
  66     to_port     = 0
  67     protocol    = "-1"
  68     cidr_blocks = ["0.0.0.0/0"]
  69   }
  70   egress {
  71     from_port   = 0
  72     to_port     = 0
  73     protocol    = "-1"
  74     cidr_blocks = ["0.0.0.0/0"]
  75   }
  76
  77 }
  78
  79 data "local_file" "tokenContent" {
  80   filename = "token"
  81   depends_on = [
  82     aws_instance.master,
  83   ]
  84 }
  85
  86
  87 locals {
  88     public_dns = aws_instance.master.public_dns
  89     join = data.local_file.tokenContent.content
  90 }
  91
  92
  93 resource "aws_instance" "worker" {
  94   ami           = var.aws_ami
  95   instance_type = var.aws_instance
  96   vpc_security_group_ids = [aws_security_group.instance.id]
  97   subnet_id =  var.aws_subnet_id
  98   user_data = templatefile("worker_user_data.tmpl", { token = local.join } )
  99   key_name = "terraform"
 100   tags = {
 101     Name = "worker"
 102   }
 103
 104   provisioner "remote-exec" {
 105   inline = ["until [ -f /microk8s.complete ]; do sleep 5; done"]
 106   }
 107
 108   connection {
 109     host = self.public_ip
 110     type     = "ssh"
 111     user     = "ubuntu"
 112     password = ""
 113     private_key = "${file("terraform.pem")}"
 114   }
 115   lifecycle {
 116     create_before_destroy = true
 117   }
 118
 119   depends_on = [
 120     aws_instance.master,
 121   ]
 122 }
 123
 124
 125 output "master_ip" {
 126   value         = aws_instance.master.public_ip
 127 }
 128