Moving networking code out into its own module

.gitignore

@@ -1,11 +1,11 @@
 msg
 *.swp
 infra/secrets/
-infra/.terraform
-infra/.terraform.lock.hcl
-infra/terraform.tfvars
+infra/**/.terraform/
+infra/**/.terraform.lock.hcl
+infra/**/terraform.tfvars
 infra/keys/
-infra/out.plan
+infra/**/out.plan
 infra/terraform.tfstate
 infra/terraform.tfstate.backup
 playbooks/hosts.ini

infra/networking/Makefile

@@ -0,0 +1,24 @@
+plan=out.plan
+
+SHELL := /bin/bash
+
+$(plan): *.tf
+	source ../secrets/set-env.sh && terraform plan -input=false -out $(plan)
+
+push: build
+	source ../secrets/set-env.sh && terraform apply $(plan)
+
+refresh:
+	source ../secrets/set-env.sh && terraform apply -refresh-only
+
+test:
+	terraform validate
+
+
+rip:
+	source ../secrets/set-env.sh && terraform destroy
+
+clean:
+	rm -f $(plan)
+
+.PHONY: test build clean push rip

infra/networking/backend.tf

@@ -0,0 +1,24 @@
+terraform {
+  required_version = ">= 0.13"
+  backend "s3" {
+      bucket  = "project-athens"
+      key     = "infra/networking/state/build.tfstate"
+      region  = "us-west-1"
+      encrypt = true
+  }
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "4.13.0"
+    }
+  }
+}
+
+# Base config for using AWS features w/ Terraform
+provider "aws" {
+  access_key = var.aws_key
+  secret_key = var.aws_secret
+  region = var.aws_region
+  max_retries = 1
+}
+

infra/networking/gateway.tf

@@ -0,0 +1,8 @@
+# Used to provide internet access for instances in the VPC
+resource "aws_internet_gateway" "athens_internet_gateway" {
+  vpc_id = aws_vpc.athens_vpc.id
+
+  tags = {
+    Name = "Athens Common Internet Gateway in Olypmus"
+  }
+}

infra/networking/route-table.tf

@@ -0,0 +1,23 @@
+# NOTE: local traffic route is implied and does not need to be specified
+resource "aws_route_table" "crete_route_table" {
+  vpc_id = aws_vpc.athens_vpc.id
+  route {
+    cidr_block = "0.0.0.0/0"
+    gateway_id = aws_internet_gateway.athens_internet_gateway.id
+  }
+
+  tags = {
+    Name = "Crete IGW Route Table"
+  }
+}
+
+
+resource "aws_route_table_association" "crete_gateway_association" {
+  subnet_id = aws_subnet.crete.id
+  route_table_id = aws_route_table.crete_route_table.id
+}
+
+resource "aws_route_table_association" "delphi_gateway_association" {
+  subnet_id      = aws_subnet.delphi.id
+  route_table_id = aws_route_table.crete_route_table.id
+}

infra/networking/subnet.tf

@@ -0,0 +1,23 @@
+# This script represents the subnet structure for Crete(primary subnet)
+
+resource "aws_subnet" "crete" {
+  vpc_id = aws_vpc.athens_vpc.id
+  # 10.0.1.0/24
+  cidr_block = var.crete_cidr
+  availability_zone = var.athens_availability_zone
+
+  tags = {
+    Name = "Crete Subnet"
+    Description = "Main subnet for EC2 and Alpha-LB"
+  }
+}
+
+resource "aws_subnet" "delphi" {
+  vpc_id = aws_vpc.athens_vpc.id
+  cidr_block = "10.0.2.0/24"
+  availability_zone = "us-west-1c"
+  tags = {
+    Name = "Delphi Subnet"
+    Description = "Secondary subnet for the Alpha-LB mostly"
+  }
+}

infra/networking/terraform.tfvars

@@ -0,0 +1,7 @@
+# AWS Things
+aws_region = "us-west-1"
+
+athens_availability_zone  = "us-west-1b"
+athens_cidr = "10.0.0.0/16"
+crete_cidr  = "10.0.1.0/24"
+

infra/networking/variables.tf

@@ -0,0 +1,35 @@
+# All variables that are used in various places go here
+
+######################### General provider specific values
+
+variable "aws_key" {
+	description = "Access Key for AWS operations"
+	type = string
+	sensitive = true
+}
+
+variable "aws_secret" {
+	description = "Secret Key for AWS operations"
+	type = string
+	sensitive = true
+}
+
+variable "aws_region" {
+	description = "Region where the VPC is located"
+	type = string
+	sensitive = true
+}
+
+variable "crete_cidr" {
+	description = "CIDR block for the servers themselves"
+	type = string
+}
+variable "athens_availability_zone" {
+	description = "Availability zone for Project Bucket"
+	type = string
+}
+
+variable "athens_cidr" {
+	description = "VPC Subnet CIDR block"
+	type = string
+}

infra/networking/vpc.tf

@@ -0,0 +1,11 @@
+
+resource "aws_vpc" "athens_vpc" {
+  cidr_block = var.athens_cidr
+  enable_dns_support = true
+  enable_dns_hostnames = true
+
+  tags = {
+    Name = "Project Athens VPC"
+  }
+}
+