To install Terraform
for more updated info refer to the official website link.
Documentation
# download and install yum utils
sudo yum install -y yum-utils
# add the respective repository
sudo yum-config-manager --add-repo https://rpm.releases.hashicorp.com/RHEL/hashicorp.repo
# install the terraform
sudo yum -y install terraform
How to create a resource in Terraform
Example 1 : to create a local file in Terraform
- to create a resource in HCL( Hashicorp Configuration Language ) we use the following code block.
resource "local_file" "pet" {
filename = "/root/pets.txt"
content = "We love pets!"
}
# description of the code block
--------------------------------
# resource_argument : Description
---------------------------------
# resource : block type
# "local_file" : Resource type
# "pet" : Resource Name
# filename : file path where file has to be created
# content : content which needs to be written in that file
Example 2 : to create an EC2 instance on AWS cloud
- to create ec2 instance using Terraform we can use below code.
resource "aws_instance" "webserver" {
ami = "ami-id"
instance_type = "t2.micro"
}
# description of the code block
--------------------------------
# resource_argument : Description
---------------------------------
# resource : block type
# "aws_instance" : Resource type
# "webserver" : Resource Name
# ami : image id which will be used while creating the ec2 resource
# instance_type : type of instance which needs to be provisioned
Example 3 : to create S3 bucket on AWS cloud
- to create s3 bucket using terraform on AWS Cloud we can use below code.
resource "aws_s3_bucket" "data" {
bucket = "webserver-bucket-org-2207"
acl = "private"
}
# description of the code block
--------------------------------
# resource_argument : Description
---------------------------------
# resource : block type
# "aws_s3_bucket" : Resource type
# "data" : Resource Name
# bucket : bucket name which will be assigned after resource has been created
# acl : type of access to private to given S3 bucket
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