vpc.tf

resource "aws_instance" "gate" {
    ami = "${var.nat_ami}"
    instance_type = "t2.small"
    key_name = "${var.aws_key_name}"
    vpc_security_group_ids = ["${aws_security_group.gate.id}"]
    subnet_id = "${aws_subnet.eu-west-1-public.id}"
    associate_public_ip_address = true
    source_dest_check = false

    tags {
        Name = "VPC NAT"
    }
}

resource "aws_instance" "web-instance" {
    ami = "${lookup(var.amis, var.aws_region)}"
    instance_type = "t2.small"
    key_name = "${var.aws_key_name}"
    vpc_security_group_ids = ["${aws_security_group.web.id}"]
    subnet_id = "${aws_subnet.eu-west-1-public.id}"
    associate_public_ip_address = true
    source_dest_check = false


    tags {
        Name = "Web Server"
    }
}

resource "aws_instance" "db-instance" {
    ami = "${lookup(var.amis, var.aws_region)}"
    instance_type = "t2.small"
    key_name = "${var.aws_key_name}"
    vpc_security_group_ids = ["${aws_security_group.db.id}"]
    subnet_id = "${aws_subnet.eu-west-1-private.id}"
    source_dest_check = false

    tags {
        Name = "DB Server"
    }
}

resource "aws_vpc" "main_vpc" {
    cidr_block = "${var.vpc_cidr}"
    enable_dns_hostnames = true
    tags {
        Name = "bacancy-blog-vpc"
    }
}

resource "aws_eip" "gate" {
    instance = "${aws_instance.gate.id}"
    vpc = true
}

resource "aws_eip" "web-instance" {
    instance = "${aws_instance.web-instance.id}"
    vpc = true
}

resource "aws_route_table" "eu-west-1-public" {
    vpc_id = "${aws_vpc.main_vpc.id}"

    route {
        cidr_block = "0.0.0.0/0"
        gateway_id = "${aws_internet_gateway.ig-main.id}"
    }

    tags {
        Name = "Public Subnet"
    }
}


resource "aws_route_table_association" "eu-west-1-public" {
    subnet_id = "${aws_subnet.eu-west-1-public.id}"
    route_table_id = "${aws_route_table.eu-west-1-public.id}"
}

resource "aws_route_table" "eu-west-1-private" {
    vpc_id = "${aws_vpc.main_vpc.id}"

    route {
        cidr_block = "0.0.0.0/0"
        instance_id = "${aws_instance.gate.id}"
    }

    tags {
        Name = "Private Subnet"
    }
}

resource "aws_route_table_association" "eu-west-1-private" {
    subnet_id = "${aws_subnet.eu-west-1-private.id}"
    route_table_id = "${aws_route_table.eu-west-1-private.id}"
}

resource "aws_subnet" "eu-west-1-public" {
    vpc_id = "${aws_vpc.main_vpc.id}"

    cidr_block = "${var.public_subnet_cidr}"

    tags {
        Name = "Public Subnet"
    }
}

resource "aws_subnet" "eu-west-1-private" {
    vpc_id = "${aws_vpc.main_vpc.id}"

    cidr_block = "${var.private_subnet_cidr}"

    tags {
        Name = "Private Subnet"
    }
}

resource "aws_internet_gateway" "ig-main" {
    vpc_id = "${aws_vpc.main_vpc.id}"
}