vpc.tf

# --------------------------------------------------------------
####  Step 1: Create VPC
# --------------------------------------------------------------
resource "aws_vpc" "hg_vpc" {
  cidr_block = "10.20.0.0/16"
  enable_dns_hostnames = true
  enable_dns_support =  true

  tags = {
    BillingBusinessApp = "hg-devops"
    Name               = "hg-devops-vpc"
  }
}

# --------------------------------------------------------------
#### Step 2: Create Subnets
# --------------------------------------------------------------

resource "aws_subnet" "hg_subnet_01" {
  cidr_block = "10.20.10.0/24"
  vpc_id = "${aws_vpc.hg_vpc.id}"
  availability_zone = "eu-west-1a"

  tags = {
    BillingBusinessApp = "hg-devops"
    Name               = "hg-devops-subnet01"
  }
}

resource "aws_subnet" "hg_subnet_02" {
  cidr_block = "10.20.20.0/24"
  vpc_id = "${aws_vpc.hg_vpc.id}"
  availability_zone = "eu-west-1b"

  tags = {
    BillingBusinessApp = "hg-devops"
    Name               = "hg-devops-subnet02"
  }
}

# --------------------------------------------------------------
#### Step 3: Create Internet Gateway
# --------------------------------------------------------------
resource "aws_internet_gateway" "hg-igw" {
  vpc_id = "${aws_vpc.hg_vpc.id}"
  tags = {
    BillingBusinessApp = "hg-devops"
    Name               = "hg-devops-igw"
  }
}


# --------------------------------------------------------------
#### Step 4: Create Route table
# --------------------------------------------------------------
resource "aws_route_table" "hg-route-table" {
  vpc_id = "${aws_vpc.hg_vpc.id}"
  route {
    cidr_block = "0.0.0.0/0"
    gateway_id = "${aws_internet_gateway.hg-igw.id}"
  }
  tags = {
    BillingBusinessApp = "hg-devops"
    Name               = "hg-devops-routetable"
  }
}


# --------------------------------------------------------------
#### Step 5: Associate route table with subnets
# --------------------------------------------------------------
resource "aws_route_table_association" "hg-route-association1" {
  route_table_id = "${aws_route_table.hg-route-table.id}"
  subnet_id = "${aws_subnet.hg_subnet_01.id}"
}

resource "aws_route_table_association" "hg-route-association2" {
  route_table_id = "${aws_route_table.hg-route-table.id}"
  subnet_id = "${aws_subnet.hg_subnet_02.id}"
}