FredsAWSStandaloneWithSmartStore/2.network/vpc.tf

###########
# Create a VPC with an Internet gateway for everybody to play in
resource "aws_vpc" "vpc_primary" {
  cidr_block = "10.45.0.0/16"
  enable_dns_support = true
  enable_dns_hostnames = true
  tags = {
    Name = "Splunk Standalone"
    Project = "Splunk"
    Environment = "Production"
  }
}

resource "aws_internet_gateway" "gw_primary" {
  vpc_id = "${aws_vpc.vpc_primary.id}"
  tags = {
    Name = "Primary Gateway"
  }
}

###########
# Create 3 Subnets, one in each AZ.
# Note that most servers will be spread between 1 and 2, but we need
# 3 AZs for a quorum for the SearchHead Cluster.
data "aws_availability_zones" "available" {}
resource "aws_subnet" "splunk_subnet_0" {
  vpc_id = "${aws_vpc.vpc_primary.id}"
  cidr_block = "10.45.0.0/24"
  availability_zone = "${data.aws_availability_zones.available.names[0]}"
  map_public_ip_on_launch = true
  tags = {
    Name = "Splunk Subnet 0"
  }
}
resource "aws_subnet" "splunk_subnet_1" {
  vpc_id = "${aws_vpc.vpc_primary.id}"
  cidr_block = "10.45.1.0/24"
  availability_zone = "${data.aws_availability_zones.available.names[1]}"
  map_public_ip_on_launch = true
  tags = {
    Name = "Splunk Subnet 1"
  }
}
resource "aws_subnet" "splunk_subnet_2" {
  vpc_id = "${aws_vpc.vpc_primary.id}"
  cidr_block = "10.45.2.0/24"
  availability_zone = "${data.aws_availability_zones.available.names[2]}"
  map_public_ip_on_launch = true
  tags = {
    Name = "Splunk Subnet 2"
  }
}

###########
# Create a route table
resource "aws_route_table" "r" {
  vpc_id = "${aws_vpc.vpc_primary.id}"
  route {
    cidr_block = "0.0.0.0/0"
    gateway_id = "${aws_internet_gateway.gw_primary.id}"
  }
  tags = {
    Name = "Primary Route Table"
  }
}

###########
# Create an S3 endpoint
resource "aws_vpc_endpoint" "s3" {
  vpc_id = "${aws_vpc.vpc_primary.id}"
  service_name = "com.amazonaws.us-east-2.s3"
}
resource "aws_vpc_endpoint_route_table_association" "s3_routing" {
  route_table_id = "${aws_route_table.r.id}"
  vpc_endpoint_id = "${aws_vpc_endpoint.s3.id}"
}


# Associate with VPC
resource "aws_main_route_table_association" "rt_public_a" {
  vpc_id = "${aws_vpc.vpc_primary.id}"
  route_table_id = "${aws_route_table.r.id}"
}