EIP with several instances

Terraform Providers AWS
1

I am new in Terraform. Can someone help me out. I want to create a terraform file multiple instances with EIP allocation to each instances. I am not able to understand how to do it. I am using these systax and I am getting error. Please help me out someone.

# EC2 intance details

resource "aws_instance" "ubuntu" {
  ami                         = var.ami
  instance_type               = var.instance-type
  count                       = var.aws_instance_count
  associate_public_ip_address = true
  subnet_id                   = aws_subnet.PublicSubnet.id
  vpc_security_group_ids      = [aws_security_group.EKS_SG.id]
  key_name                    = var.SSH-key
  

  # Attach block device

  ebs_block_device {
    device_name           = "/dev/sda1" 
    volume_type           = "gp2"       
    volume_size           = 20          
    delete_on_termination = true      
  }
  tags = {
    Name = "TerraformEC2-${count.index + 1}"
  }
}

# Key_pair details

resource "aws_key_pair" "tf-ec2" {
  key_name = var.SSH-key
  # public_key = file("${path.module/tf-key.pub}")
  public_key = "ssh-rsa MTwG7CwJ"

}

# Elactic_IP allocate for e Single instance

resource "aws_eip" "Tf-eif" {
  instance = aws_instance.ubuntu.id
  vpc = true
  depends_on = ["aws_instance.ubuntu"]

  tags = {
    Name = "EKS_eip"
  }
}




variable "location" {
    default = "ap-south-1"
}

variable "access_key" {
    default = ""
}

variable "secret_key" {
    default = ""
}

variable "ami" {
    default = "ami-02eb7a4783e7e9317"
}

variable "aws_instance_count" {
    type = number
    default = "2"
}

variable "SSH-key" {
    default = "tf-demo-key"
}

variable "instance-type" {
    default = "t2.micro"
}

variable "vpc-cidr" {
    default = "10.10.0.0/16"  
}

variable "Pub_subnet1-cidr" {
    default = "10.10.1.0/24"
  
}

variable "Private_subnet2-cidr" {
    default = "10.10.2.0/24"
  
}
variable "subent_az_1" {
    default =  "ap-south-1a"  
}

variable "subent_az_2" {
    default =  "ap-south-1b"  
}





# Create the vpc

resource "aws_vpc" "EKS_vpc" {
  cidr_block = "10.10.0.0/16"
  tags = {
    name = "vpc_for_EKs"
  }

}

# Create Public Subnet

resource "aws_subnet" "PublicSubnet" {
  vpc_id                  = aws_vpc.EKS_vpc.id
  cidr_block              = "10.10.1.0/24"
  availability_zone       = var.subent_az_1
  map_public_ip_on_launch = "true"
  tags = {
    name = "PublicSN"
  }
}


# Create Private Subnet

resource "aws_subnet" "PrivateSubnet" {
  vpc_id            = aws_vpc.EKS_vpc.id
  cidr_block        = "10.10.2.0/24"
  availability_zone = var.subent_az_2
  tags = {
    name = "PrivateSN"
  }

}


# Internet Gateway

resource "aws_internet_gateway" "igw" {
  vpc_id = aws_vpc.EKS_vpc.id
  tags = {
    name = "IGT"
  }
}

# Create Route Table for Public subnet

resource "aws_route_table" "PublicSubnet" {
  vpc_id = aws_vpc.EKS_vpc.id
  route {
    cidr_block = "0.0.0.0/0"
    gateway_id = aws_internet_gateway.igw.id
  }
}

# Route Table association with public subnet

resource "aws_route_table_association" "PublicRTassociation" {
  subnet_id      = aws_subnet.PublicSubnet.id
  route_table_id = aws_route_table.PublicSubnet.id

}
2

The formatting of your copy/pasted code is really hard to read. See Welcome to the forum - please reformat your message.

I personally have no experience with AWS Elastic IPs, but there are examples written right there in the documentation of the aws_eip resource, so you might want to start there.

3

Thanks for replying… But can u please send me something where I can get the manifest file with multiple ec2 instance attach with multiple elastic ips…

4

You seem to have chosen to not act on either of the points in my previous reply, so I won’t reply further.