=======================================
Terraform Practice Example
=======================================


https://console.aws.amazon.com/iam/home?#/home

https://console.aws.amazon.com/iam/home?#/users/adarshkumar?section=security_credentials


Steps to run Terraform
=============================

Step1: Download Terraform from Hasicorp

Step2: Unzip in some directory - Normally it has just one file

Step 3: Put the above in your system path windows or Linux

Step4: Test by simply running 
       terraform

Step5:  Goto AWS Console and get your  "access Key" and "Secret _key" for the user who can loging and do the work in AWS


Step6: Now Create a project directory

Step7: Create any file say ec2.tf  <== Note it has tf extension ( See example below)

-- Start

provider "aws" {
  access_key = "AKIAZY2JM46YFE36ABIC"
  secret_key = "7lpSIBNwEGN6I2ta1Ux/ESzZFf+YxZ1eCz2PA1yW"
  region     = "us-east-1"
}

resource "aws_instance" "AKexample1" {
  ami           = "ami-2757f631"
  instance_type = "t2.micro"
}

-- End


Step8:  While inside the project subdirectory initialize 
        terraform init     <== this will create more resource 

Step9: Now create resource by running
       terraform apply


Step10: you can destroy the resource using
        terraform destroy

   
###################
Sample Outputs 
###################


C:\terraform\Practice\Create_EC2>terraform init

Initializing provider plugins...
- Checking for available provider plugins on https://releases.hashicorp.com...
- Downloading plugin for provider "aws" (2.29.0)...

The following providers do not have any version constraints in configuration,
so the latest version was installed.

To prevent automatic upgrades to new major versions that may contain breaking
changes, it is recommended to add version = "..." constraints to the
corresponding provider blocks in configuration, with the constraint strings
suggested below.

* provider.aws: version = "~> 2.29"

Terraform has been successfully initialized!


#### Apply ( output sample )


C:\terraform>terraform apply
aws_instance.AKexample: Refreshing state... (ID: i-0070e20a2f9c4a6db)

An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:
  + create
  - destroy

Terraform will perform the following actions:

  - aws_instance.AKexample

  + aws_instance.AKexample2
      id:                           <computed>
      ami:                          "ami-2757f631"
      associate_public_ip_address:  <computed>
      availability_zone:            <computed>
      ebs_block_device.#:           <computed>
      ephemeral_block_device.#:     <computed>
      get_password_data:            "false"
      instance_state:               <computed>
      instance_type:                "t2.micro"
      ipv6_address_count:           <computed>
      ipv6_addresses.#:             <computed>
      key_name:                     <computed>
      network_interface.#:          <computed>
      network_interface_id:         <computed>
      password_data:                <computed>
      placement_group:              <computed>
      primary_network_interface_id: <computed>
      private_dns:                  <computed>
      private_ip:                   <computed>
      public_dns:                   <computed>
      public_ip:                    <computed>
      root_block_device.#:          <computed>
      security_groups.#:            <computed>
      source_dest_check:            "true"
      subnet_id:                    <computed>
      tenancy:                      <computed>
      volume_tags.%:                <computed>
      vpc_security_group_ids.#:     <computed>


Plan: 1 to add, 0 to change, 1 to destroy.

Do you want to perform these actions?
  Terraform will perform the actions described above.
  Only 'yes' will be accepted to approve.

  Enter a value: yes

aws_instance.AKexample: Destroying... (ID: i-0070e20a2f9c4a6db)
aws_instance.AKexample2: Creating...
  ami:                          "" => "ami-2757f631"
  associate_public_ip_address:  "" => "<computed>"
  availability_zone:            "" => "<computed>"
  ebs_block_device.#:           "" => "<computed>"
  ephemeral_block_device.#:     "" => "<computed>"
  get_password_data:            "" => "false"
  instance_state:               "" => "<computed>"
  instance_type:                "" => "t2.micro"
  ipv6_address_count:           "" => "<computed>"
  ipv6_addresses.#:             "" => "<computed>"
  key_name:                     "" => "<computed>"
  network_interface.#:          "" => "<computed>"
  network_interface_id:         "" => "<computed>"
  password_data:                "" => "<computed>"
  placement_group:              "" => "<computed>"
  primary_network_interface_id: "" => "<computed>"
  private_dns:                  "" => "<computed>"
  private_ip:                   "" => "<computed>"
  public_dns:                   "" => "<computed>"
  public_ip:                    "" => "<computed>"
  root_block_device.#:          "" => "<computed>"
  security_groups.#:            "" => "<computed>"
  source_dest_check:            "" => "true"
  subnet_id:                    "" => "<computed>"
  tenancy:                      "" => "<computed>"
  volume_tags.%:                "" => "<computed>"
  vpc_security_group_ids.#:     "" => "<computed>"
aws_instance.AKexample: Still destroying... (ID: i-0070e20a2f9c4a6db, 10s elapsed)
aws_instance.AKexample2: Still creating... (10s elapsed)
aws_instance.AKexample: Still destroying... (ID: i-0070e20a2f9c4a6db, 20s elapsed)
aws_instance.AKexample2: Still creating... (20s elapsed)
aws_instance.AKexample2: Creation complete after 23s (ID: i-0acfb329cd2c2e6cf)
aws_instance.AKexample: Still destroying... (ID: i-0070e20a2f9c4a6db, 30s elapsed)
aws_instance.AKexample: Still destroying... (ID: i-0070e20a2f9c4a6db, 40s elapsed)
aws_instance.AKexample: Still destroying... (ID: i-0070e20a2f9c4a6db, 50s elapsed)
aws_instance.AKexample: Destruction complete after 51s

Apply complete! Resources: 1 added, 0 changed, 1 destroyed.