added terrafrom files

README.md

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+# maven-standalone-application
+This barch contains the necessary terrafrorm codes for creating resources in aws

terraform-eks/db/db.tf

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+resource "aws_instance" "db" {
+    ami = "ami-03a0c45ebc70f98ea"
+    instance_type = "t2.micro"
+    # subnet_id = module.eip.aws_subnet.demo.id
+    tags = {
+        Name = "DB Server"
+    }
+}
+
+# module "eip" {
+#     source = "../eip" // child module is called becoz subnet_id is referencing it as module.eip
+#     instance_id = aws_insatnce.db.id // declaring instance.id from the eip module
+# }
+
+# module "sg" {
+#     source = "../sg"
+# }
+
+output "PrivateIP" {
+    value = aws_instance.db.private_ip
+}

terraform-eks/eip/eip.tf

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+variable "instance_id" {
+    type = string
+}
+
+resource "aws_eip" "web_ip" {
+    instance = var.instance_id
+    # depends_on = [
+    #   aws_internet_gateway.demo
+    # ]
+}
+
+# resource "aws_vpc" "demo" {
+#   cidr_block = "10.0.0.0/16"
+
+#   tags = {
+#       Name = "myDemoVPC"
+#   }
+# }
+
+# resource "aws_internet_gateway" "demo" {
+#   vpc_id = aws_vpc.demo.id // the .id is attached because vpc is being called inside igw
+
+#   tags = {
+#     Name = "myDemoIGW"
+#   }
+# }
+
+# resource "aws_subnet" "demo" {
+
+#   availability_zone       = us-east-2a
+#   cidr_block              = "10.0.0.0/24"
+#   map_public_ip_on_launch = true
+#   vpc_id                  = aws_vpc.demo.id
+
+#   // depends_on = [aws_internet_gateway.gw]
+
+#   tags = {
+#       Name = "Public Subnet"
+#   }
+# }
+
+output "PublicIP" {
+    value = aws_eip.web_ip.public_ip
+}

terraform-eks/main.tf

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+/* this is the main module block created in the current and parent directory.  
+From this module block, child blocks can be called in the main.tf module and should be 
+referenced properly.
+*/
+//Terraform block
+terraform {
+  required_version = "~> 1.0"
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "~> 3.0" # Optional but recommended in production
+    }
+  }
+}
+
+//Provider block
+provider "aws" {
+    region = "us-east-2"
+    profile = "terence" 
+}
+
+module "db" {     //this is initializing the db module/directory
+    source = "./db"
+}
+
+module "web" {       // eip and sg were ran as child modules inside this module
+    source = "./web"
+}
+
+output "PrivateIP" {
+    value = module.db.PrivateIP  // this specified in the db module/directory
+}
+
+output "PublicIP" {
+    value = module.web.pub_ip //calling the web eip
+}

terraform-eks/sg/sg.tf

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+variable "ingress" {
+    type = list(number)
+    default = [80, 443]
+}
+
+variable "egress" {
+    type = list(number)
+    default = [0]
+}
+
+resource "aws_security_group" "web_traffic" {
+    name = "Allow Web Traffic"
+    # vpc_id = module.eip.aws_vpc.demo.id
+
+    dynamic "ingress" {
+        iterator = port
+        for_each = var.ingress
+        content {
+            from_port = port.value
+            to_port = port. value
+            protocol = "TCP"
+            cidr_blocks = ["0.0.0.0/0"]
+        }
+    }
+
+        dynamic "egress" {
+        iterator = port
+        for_each = var.egress
+        content {
+            from_port = port.value
+            to_port = port. value
+            protocol = "TCP"
+            cidr_blocks = ["0.0.0.0/0"]
+        }
+    }
+}
+
+# module "eip" {
+#     source = "../eip"
+#     instance_id = aws_vpc.demo.id
+# }
+
+output "sg_name" {
+    value = aws_security_group.web_traffic.name
+}

terraform-eks/terraform.tfstate

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+{
+  "version": 4,
+  "terraform_version": "1.0.11",
+  "serial": 10,
+  "lineage": "f999bcf5-b749-4305-0dcd-f536b16a3751",
+  "outputs": {},
+  "resources": []
+}