{"id":115,"date":"2019-03-31T16:19:00","date_gmt":"2019-03-31T16:19:00","guid":{"rendered":"https:\/\/opstree.com\/blog\/\/2019\/03\/31\/the-closer-you-think-you-are-the-less-youll-actually-see\/"},"modified":"2019-09-18T12:55:46","modified_gmt":"2019-09-18T07:25:46","slug":"the-closer-you-think-you-are-the-less-youll-actually-see","status":"publish","type":"post","link":"https:\/\/opstree.com\/blog\/2019\/03\/31\/the-closer-you-think-you-are-the-less-youll-actually-see\/","title":{"rendered":"The closer you think you are, the less you’ll actually see"},"content":{"rendered":"
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I hope you have seen the movie Now you see me<\/b>, it has a famous quote The closer you think you are, the less you’ll actually see<\/i>. Well, this blog is not about this movie but how I got stuck into an issue, because I was not paying attention and looking at the things closely and seeing less hence not able to resolve the issue.<\/p>\n<\/div>\n

There is a lot happening in today\u2019s DevOps world. And HashiCorp has emerged out to be a big player in this game. Terraform is one of the open source tools to manage infrastructure as code<\/i><\/b>. It plays well with most of the cloud provider. But with all these continuous improvements and enhancements there comes a possibility of issues as well. Below article is about such a scenario. And in case you have found yourself in the same trouble. You are lucky to reach the right page.<\/div>\n
I was learning terraform and performing a simple task to launch an Ubuntu<\/b> EC2 instance in us-east-1 <\/b>region. For which I required the AMI Id,<\/b> which I copied from the AWS console as shown in below screenshot.<\/p>\n
<\/a><\/div>\n

Once I got the AMI Id, I tried to create the instance using terraform, below is the screenshot of the code<\/p>\n

provider “aws” {<\/div>\n
  region     = “us-east-1”<\/div>\n
  access_key = “XXXXXXXXXXXXXXXXXX”<\/div>\n
  secret_key = “XXXXXXXXXXXXXXXXXXX”<\/div>\n
}<\/div>\n
<\/div>\n
resource “aws_instance” “sandy” {<\/div>\n
        ami = “ami-036ede09922dadc9b<\/span>“<\/div>\n
        instance_type = “t2.micro”<\/div>\n
        subnet_id = “subnet-0bf4261d26b8dc3fc”<\/div>\n
}<\/div>\n
I was expecting to see the magic of Terraform but what I got below ugly error.<\/p>\n<\/div>\n
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<\/a><\/div>\n
<\/div>\n

Terraform was not allowing to spin up the instance. I tried couple of things which didn\u2019t work. As you can see the error message didn’t give too much information. Finally, I thought of giving it a try by  doing same task via AWS web console. I searched for the same ubuntu AMI and selected the image as shown below. Rest of the things, I kept to default. And well, this time it got launched.<\/p>\n<\/div>\n

<\/a><\/div>\n

And it confused me more. Through console, it was working fine but while using Terraform it says not allowed. After a lot of hair pulling finally, I found the culprit which is a perfect example of how overlooking small things can lead to blunder.<\/p>\n

Culprit<\/h3>\n
While copying the AMI ID from AWS console, I had copied the 64-bit (ARM) AMI ID. Please look carefully, the below screenshot<\/p>\n
<\/a><\/div>\n
<\/div>\n<\/div>\n
<\/div>\n
But while creating it through console I was selecting the default configuration which by is 64-bit(x86). Look at the below screenshot.<\/p>\n<\/div>\n
<\/a><\/div>\n
To explain it further, I tried to launch the VM with 64-bit (ARM) manually. And while selecting the AMI, I selected the 64-bit (ARM).<\/p>\n<\/div>\n
<\/a><\/div>\n
And here is the culprit. 64-bit(ARM) only supports a1 instance type<\/p>\n
<\/a><\/div>\n

Conclusion<\/h3>\n
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While launching the instance with the terraform, I tried using 64-bit (ARM) AMI ID mistakenly, primarily because for same AMI there are 2 AMI IDs and it is not very visible to eyes unless you pay special attention.<\/p>\n

So folks, next time choosing an AMI ID keep it in mind what type of AMI you are selecting. It will save you a lot of time.<\/p>\n<\/div>\n

<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

I hope you have seen the movie Now you see me, it has a famous quote The closer you think you are, the less you’ll actually see. Well, this blog is not about this movie but how I got stuck into an issue, because I was not paying attention and looking at the things closely and … Continue reading “The closer you think you are, the less you’ll actually see”<\/span><\/a><\/p>\n","protected":false},"author":171775670,"featured_media":29900,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[1],"tags":[768739294,768739308,676319247,59002157,3021235],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/opstree.com\/blog\/wp-content\/uploads\/2025\/11\/DevSecOps-1.jpg","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pfDBOm-1R","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/posts\/115"}],"collection":[{"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/users\/171775670"}],"replies":[{"embeddable":true,"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/comments?post=115"}],"version-history":[{"count":4,"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/posts\/115\/revisions"}],"predecessor-version":[{"id":981,"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/posts\/115\/revisions\/981"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/media\/29900"}],"wp:attachment":[{"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/media?parent=115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/categories?post=115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/opstree.com\/blog\/wp-json\/wp\/v2\/tags?post=115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}