/
main.tf
162 lines (138 loc) · 3.41 KB
/
main.tf
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data "aws_subnet" "environment" {
vpc_id = var.vpc_id
id = var.public_subnet_id
}
data "template_file" "master" {
template = file("${path.module}/files/master.json.tpl")
vars = {
environment = var.environment
token = var.token
encryption_key = var.encryption_key
}
}
resource "aws_instance" "server" {
ami = var.ami[var.region]
instance_type = var.instance_type
key_name = var.key_name
count = var.servers
subnet_id = var.public_subnet_id
vpc_security_group_ids = [
aws_security_group.consul.id,
]
connection {
host = coalesce(self.public_ip, self.private_ip)
type = "ssh"
user = "ubuntu"
private_key = file(var.private_key_path)
}
tags = {
Name = "${var.environment}-consul-server-${count.index}"
}
provisioner "file" {
content = data.template_file.master.rendered
destination = "/tmp/master.json"
}
provisioner "remote-exec" {
inline = [
"sudo mkdir -p /etc/systemd/system/consul.d",
"sudo mv /tmp/master.json /etc/systemd/system/consul.d",
"echo ${var.servers} > /tmp/consul-server-count",
"echo ${aws_instance.server[0].private_dns} > /tmp/consul-server-addr",
"echo ${aws_instance.server[0].private_ip} > /tmp/consul-server-ip",
]
}
provisioner "remote-exec" {
scripts = [
"${path.module}/files/install.sh",
"${path.module}/files/service.sh",
"${path.module}/files/ip_tables.sh",
]
}
}
resource "aws_security_group" "consul" {
name = "${var.environment}-consul"
description = "Consul internal traffic + maintenance."
vpc_id = var.vpc_id
ingress {
from_port = 0
to_port = 65535
protocol = "tcp"
self = true
}
ingress {
from_port = 0
to_port = 65535
protocol = "udp"
self = true
}
// allow traffic for TCP 53 (DNS)
ingress {
from_port = 53
to_port = 53
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
// allow traffic for UDP 53 (DNS)
ingress {
from_port = 53
to_port = 53
protocol = "udp"
cidr_blocks = ["0.0.0.0/0"]
}
// allow traffic for TCP 8300 (Server RPC)
ingress {
from_port = 8300
to_port = 8300
protocol = "tcp"
cidr_blocks = [data.aws_subnet.environment.cidr_block]
}
// allow traffic for TCP 8301 (Serf LAN)
ingress {
from_port = 8301
to_port = 8301
protocol = "tcp"
cidr_blocks = [data.aws_subnet.environment.cidr_block]
}
// allow traffic for UDP 8301 (Serf LAN)
ingress {
from_port = 8301
to_port = 8301
protocol = "udp"
cidr_blocks = [data.aws_subnet.environment.cidr_block]
}
// allow traffic for TCP 8400 (Consul RPC)
ingress {
from_port = 8400
to_port = 8400
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
// allow traffic for TCP 8500 (Consul Web UI)
ingress {
from_port = 8500
to_port = 8500
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 22
to_port = 22
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 8
to_port = 0
protocol = "icmp"
cidr_blocks = ["0.0.0.0/0"]
}
egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
tags = {
Name = "${var.environment}-consul-sg"
}
}