mailinabox/terraform/networking.tf

resource "aws_vpc" "main" {
    cidr_block = "10.0.0.0/16"
    enable_dns_hostnames = "True"
}

resource "aws_subnet" "public_subnet_1" {
    vpc_id = "${aws_vpc.main.id}"
    availability_zone = "us-east-1a"
    cidr_block = "10.0.1.0/26"
}

resource "aws_internet_gateway" "main_gw" {
    vpc_id = "${aws_vpc.main.id}"
}

resource "aws_route_table" "main_route_table" {
    vpc_id = "${aws_vpc.main.id}"
    route {
        cidr_block = "0.0.0.0/0"
        gateway_id = "${aws_internet_gateway.main_gw.id}"
    }
}

resource "aws_route_table_association" "route_subnet_1" {
    subnet_id = "${aws_subnet.public_subnet_1.id}"
    route_table_id = "${aws_route_table.main_route_table.id}"
}

resource "aws_security_group" "main_sg" {
    vpc_id = "${aws_vpc.main.id}"

    ingress {
        from_port = 22
        to_port = 22
        protocol = "tcp"
        cidr_blocks = ["0.0.0.0/0"]
    }

    ingress {
        from_port = 80
        to_port = 80
        protocol = "tcp"
        cidr_blocks = ["0.0.0.0/0"]
    }

    ingress {
        from_port = 443
        to_port = 443
        protocol = "tcp"
        cidr_blocks = ["0.0.0.0/0"]
    }

    # SMTP
    ingress {
        from_port = 25
        to_port = 25
        protocol = "tcp"
        cidr_blocks = ["0.0.0.0/0"]
    }

    ingress {
        from_port = 587
        to_port = 587
        protocol = "tcp"
        cidr_blocks = ["0.0.0.0/0"]
    }

    ingress {
        from_port = 993
        to_port = 993
        protocol = "tcp"
        cidr_blocks = ["0.0.0.0/0"]
    }

    ingress {
        from_port = 4190
        to_port = 4190
        protocol = "tcp"
        cidr_blocks = ["0.0.0.0/0"]
    }

    ingress {
        from_port = 53
        to_port = 53
        protocol = "tcp"
        cidr_blocks = ["0.0.0.0/0"]
    }

    egress {
       from_port = 0
       to_port = 0
       protocol = "-1"
       cidr_blocks = ["0.0.0.0/0"]
   }
}