Vagrant : An AMI must be configured via "ami" (region: #{region}) - linux

Question

I got an error as below when run vagrant command,
# vagrant up --provider=aws
There are errors in the configuration of this machine. Please fix
the following errors and try again:
AWS Provider:
* An AMI must be configured via "ami" (region: #{region})
I'm using Vagrant 2.0.1 with vagrant-aws 0.7.2
Vagrant file:
Vagrant.configure("2") do |config|
require 'vagrant-aws'
Vagrant.configure('2') do |config|
config.vm.box = 'Vagarent'
config.vm.provider 'aws' do |aws, override|
aws.access_key_id = "xxxxxxxxxxxxxxxxxx"
aws.secret_access_key = "xxxxxxxxxxxxxxxxxxxxxxxx"
aws.keypair_name = 'ssh-keypair-name'
aws.instance_type = "t2.micro"
aws.region = 'us-west-2a'
aws.ami = 'ami-1122298f0'
aws.security_groups = ['default']
override.ssh.username = 'ubuntu'
override.ssh.private_key_path = '~/.ssh/ssh-keypair-file'
end
end
How to solve it?

Answer 1

us-west-2a is not a valid region name, see https://docs.aws.amazon.com/general/latest/gr/rande.html#ec2_region for the full list of available region and end-points.
If you AMI is location in US West (Oregon), then you need to replace with us-west-2 in your Vagrantfile

Answer 2

Going through "vagrant-aws" documentation, following worked for me.
Installed "vagrant-aws" plugin with shell:
vagrant plugin install vagrant-aws
Added AWS compatible 'dummy-box' named "aws" added in config.vm.box = "aws":
vagrant box add aws https://github.com/mitchellh/vagrant-aws/raw/master/dummy.box
Created following Vagrant file:
# Require the AWS provider plugin
require 'vagrant-aws'
Vagrant.configure(2) do |config|
config.vm.box = "aws"
config.vm.box_url = "https://github.com/mitchellh/vagrant-aws/raw/master/dummy.box"
config.vm.provider :aws do |aws, override|
aws.access_key_id = ENV['AWS_ACCESS_KEY']
aws.secret_access_key = ENV['AWS_SECRET_KEY']
aws.region = "us-east-1"
#aws.availability_zone = "us-east-1c"
# EC2 Instance AMI
aws.ami = "ami-aa2ea6d0" # Ubuntu 16.04 in US-EAST
aws.keypair_name = "awswindows" #change as per your key
aws.instance_type = "t2.micro"
aws.block_device_mapping = [{ 'DeviceName' => '/dev/sda1', 'Ebs.VolumeSize' => 10 }]
aws.security_groups = ["YOUR_SG"]
aws.tags = {
'Name' => 'Vagrant EC2 Instance'
}
# Credentials to login to EC2 Instance
override.ssh.username = "ubuntu"
override.ssh.private_key_path = ENV['AWS_PRIVATE_KEY']
end
end
Fired vagrant up --provider=aws.
Check once and let me know if you face any issue.