Added myvpc from existing sources as module

Aug21/ntierawswithmodules/maint.tf

@@ -0,0 +1,28 @@
+terraform {
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "~> 3.0"
+    }
+  }
+}
+
+# Configure the AWS Provider
+provider "aws" {
+  region = "ap-south-1"
+}
+
+module "myvpc" {
+    source = "./modules/myvpc"
+    ntier_cidr = "10.1.0.0/16"
+    ntier_subnet_tags = ["ntier-web1", "ntier-app1", "ntier-db1", "ntier-web2", "ntier-app2", "ntier-db2"]
+    ntier_subnet_azs = ["ap-south-1a","ap-south-1a","ap-south-1a", "ap-south-1b","ap-south-1b","ap-south-1b"]
+    web_subnet_indexes = [ 0,3]
+    other_subnet_indexes = [ 1,2,4,5]
+
+}
+
+output "vpcid" {
+   value = module.myvpc.vpcid
+
+}

Aug21/ntierawswithmodules/modules/myvpc/main.tf

@@ -0,0 +1,132 @@
+resource "aws_vpc" "ntiervpc" {
+    cidr_block = var.ntier_cidr
+
+    tags = {
+      "Name" = "ntier"
+    }
+
+}
+# aws_vpc.ntiervpc.id
+
+# depending on subnet cidr variables
+resource "aws_subnet" "subnets" {
+
+   count = length(var.ntier_subnet_azs)
+
+   cidr_block = cidrsubnet(var.ntier_cidr, 8, count.index)
+   availability_zone = var.ntier_subnet_azs[count.index]
+   tags = {
+      "Name" = var.ntier_subnet_tags[count.index]
+    }
+    vpc_id = aws_vpc.ntiervpc.id
+
+    depends_on = [
+      aws_vpc.ntiervpc
+    ]
+
+}
+
+# Create an internet gateway and attach to vpc
+
+resource "aws_internet_gateway" "ntierigw" {
+  vpc_id = aws_vpc.ntiervpc.id
+
+  tags = {
+    "Name" = "ntier-igw"
+  }
+
+  depends_on = [
+    aws_vpc.ntiervpc
+  ]
+
+}
+
+# create a public route table
+
+resource "aws_route_table" "publicrt" {
+  vpc_id = aws_vpc.ntiervpc.id
+  route = [ ]
+
+  tags = {
+    "Name" = "ntier-publicrt"
+  }
+
+  depends_on = [
+    aws_vpc.ntiervpc,
+    aws_subnet.subnets  
+  ]
+}
+
+resource "aws_route" "publicroute" {
+  route_table_id = aws_route_table.publicrt.id
+  destination_cidr_block = "0.0.0.0/0"
+  gateway_id = aws_internet_gateway.ntierigw.id
+}
+
+resource "aws_route_table_association" "publicrtassociations" {
+  count = length(var.web_subnet_indexes)
+  subnet_id = aws_subnet.subnets[var.web_subnet_indexes[count.index]].id
+  route_table_id = aws_route_table.publicrt.id
+}
+
+resource "aws_security_group" "websg" {
+  name = "openhttp"
+  description = "Open http and ssh"
+  vpc_id = aws_vpc.ntiervpc.id
+
+  tags = {
+    "Name" = "Openhttp"
+  }
+  depends_on = [
+    aws_vpc.ntiervpc,
+    aws_subnet.subnets,
+    aws_route_table.publicrt,
+    aws_route_table.ntierprivatert
+  ]
+
+}
+
+resource "aws_security_group_rule" "websghttp" {
+  type = "ingress"
+  from_port = 80
+  to_port = 80
+  protocol = "tcp"
+  cidr_blocks = ["0.0.0.0/0"]
+  security_group_id = aws_security_group.websg.id
+
+
+}
+
+resource "aws_security_group_rule" "websgssh" {
+  type = "ingress"
+  from_port = 22
+  to_port = 22
+  protocol = "tcp"
+  cidr_blocks = ["0.0.0.0/0"]
+  security_group_id = aws_security_group.websg.id
+
+
+
+}
+
+
+resource "aws_route_table" "ntierprivatert" {
+  vpc_id = aws_vpc.ntiervpc.id
+  route = [ ]
+
+  tags = {
+    "Name" = "ntier-privatert"
+  }
+
+}
+
+resource "aws_route_table_association" "privatertassociations" {
+  count = length(var.other_subnet_indexes)
+  subnet_id = aws_subnet.subnets[var.other_subnet_indexes[count.index]].id
+  route_table_id = aws_route_table.ntierprivatert.id
+
+  depends_on = [
+    aws_subnet.subnets,
+    aws_route_table.ntierprivatert
+  ]
+}

Aug21/ntierawswithmodules/modules/myvpc/outputs.tf

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+output "vpcid" {
+    value = aws_vpc.ntiervpc.id
+}
+

Aug21/ntierawswithmodules/modules/myvpc/variables.tf

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+variable "ntier_cidr" {
+    type = string
+    default = "10.10.0.0/16"
+}
+
+variable "ntier_region" {
+    type = string
+    default = "ap-south-1"
+}
+
+
+variable "ntier_subnet_azs" {
+    default = ["ap-south-1a","ap-south-1a","ap-south-1a"]
+
+}
+
+variable "ntier_subnet_tags" {
+    default = ["ntier-web1", "ntier-app1", "ntier-db1"]
+
+}
+
+variable "web_subnet_indexes" {
+    type = list(number)
+    default = [ 0 ]
+}
+
+variable "other_subnet_indexes" {
+    type = list(number)
+    default = [ 1,2 ]
+
+}