Terraform The availability Zone issue

Question

Hello Team, So I try to launch my Ec2 instance with terraform but I have the issue of Availability Zone. I try to change the zone and the region, but I have always the issue of Invalid availability zone: [us-east-2].

So here the error message:

╷

│ Error: creating EC2 Instance: operation error EC2: RunInstances, https response error StatusCode: 400, RequestID: 706b1ac5-9587-4e18-b7ec-fb281ce7a1b4, api error InvalidParameterValue: Invalid availability zone: [us-east-2]

│

│   with aws_instance.web,

│   on first_instance.tf line 7, in resource "aws_instance" "web":

│    7: resource "aws_instance" "web" {

This my file.tf:

provider "aws" {
  region     = "us-east-2"
}

resource "aws_instance" "web" {
  ami                    = "ami-0b0a32ffc011bf8c2"
  instance_type          = "t2.micro"
  availability_zone      = "us-east-2a"
  key_name               = "love-sg"
  vpc_security_group_ids = ["sg-067a6076c9de32a39"]
  tags = {
    Name = "love-Instance"
  }

}

Adeleke Adebowale Julius · Accepted Answer

Here is a corrected version of your Terraform file without specifying the availability_zone:
```
provider "aws" {
  region = "us-east-2"
}

resource "aws_instance" "web" {
  ami                    = "ami-0b0a32ffc011bf8c2"
  instance_type          = "t2.micro"
  key_name               = "love-sg"
  vpc_security_group_ids = ["sg-067a6076c9de32a39"]
  tags = {
    Name = "love-Instance"
  }
}

```

Steve_M · Answer

I see you've already accepted A_J's answer, and if that works for you then that's great. But there appears to be a mismatch between the error message and the Terraform code.

The error message `InvalidParameterValue: Invalid availability zone: [us-east-2]` is correct, because **us-east-2** is a region, not an AZ.

The Terraform code clearly shows the AZ is **us-east-2a** (note the 'a' on the end):
```
availability_zone = "us-east-2a"
```
I'm confused at how that error message is generated by the given Terraform code.

Terraform The availability Zone issue

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