Terraform Main Operations and state file

Terraform main operations such as init plan apply and destroy and the state file telephone is a infrastructure as code tool a command line to help us create infrastructure with standard adjacent files and then run telephone apply in order to actually create this infrastructure either in AWS cloud or Google cloud or azure cloud or any other cloud provider even locally and it has many plugins.

In this session

• init plan apply destroy
• state file
• variables
• terraform pattern consistentresource keyword
  resource identifier "aws_vpc"
  our name "mypc"
  in curly braces the parametesrs like cidr_block = "10.0.0.0/16"
  
• terraform initi's like mvn install
  Download the plugins to use aws
  We can run this command after created main.tf
  pull down modules
  
• terraform planwill show what's its going to do
  
  checks stateGet developer style diff before commit
  What already created which diff
  don't want to loose this state file
  
• terraform applyshowing the diff
  click yes to continue
  resources created in aws!
  
• terraform destroyto delete all reources
  confirm
  
• state file terraform.tfstatewe can see locally all that we created with terraform!
  this file will have ALL resources created by terraform
  visibility!
  we want this file to get missing
  json format
  .bak
  track changes we made
  used for diff
  

Terraform main operations and components are:



- [1] init [2] plan [3] apply [4] destroy

- State files

- variables





- terraform pattern consistent

- resource keyword

- resource identifier "aws_vpc"

 - our name "mypc"

 - in curly braces the parametesrs like cidr_block = "10.0.0.0/16"





- `terraform init`

 - i's like mvn install

 - Download the plugins to use aws

 - We can run this command after created main.tf

 - pull down modules



- `terraform plan`

 - will show what's its going to do

 - checks state

   - Get developer style diff before commit

   - What already created which diff

   - don't want to loose this state file



- `terraform apply`

 - showing the diff

 - click `yes` to continue

 - resources created in aws!



- `terraform destroy`

 - to delete all reources

 - confirm



- `state file` `terraform.tfstate`

 - we can see locally all that we created with terraform!

 - this file will have ALL resources created by terraform

 - visibility!

 - we want this file to get missing

 - json format

 - .bak

 - track changes we made

 - used for diff