Github integration with Terraform cloud to driven workflow using VCS

Description: Here I have explained, How to integrated GitHub with Terraform cloud to driven the workflow using VCS.  When you integrate the GitHub with terraform cloud your terraform project tf files saved in GitHub repository.  Whenever you make any changes in GitHub files workflow run automatically.

GitHub Repository: 

The first step, we setup blank public repository in GitHub. To create the blank repository navigate GitHub and create blank repository with Readme file 

Clone the newly created repository in local folder using git clone command 

git clone https://github.com/harpal1990/testrepo-tfcloud.git

After clone the repository I am adding  terraform project files in same directory and upload it to repository. So I have uploaded main.tf and install_nginx.sh file as part of my terraform project

Now to push it to repository we need git username and password. So generate git token from the GitHub. To generate GitHub token navigate to user setting in GitHub --> Developer Settings --> Personal access tokens --> Tokens (classic) --> Generate new token 

Once you generated the GitHub token make sure to keep in safe place. If it loss need to regenerate with new name

Once you add the additional files and push to origin branch it asked for password/token as follow

Now push the additional files to GitHub

Workspace: Now after filling all the details create new workspace and select version control workflow

Select GiHub as subversion control system and click on next

Once you click on GitHub it will popup for account authorization

Add all the required repositories for terraform cloud in our example I am using testrepo-tfcloud

After adding the repository you can select the valid repository and click on create workspace 

After creating workspace add variables as follow

After uploaded all files uploaded create the require variables in Terraform cloud. To add variable in terraform cloud navigate to workspace setting --> variable --> create variable set

Add variable -- Create Variable set

First variable add  for region as follow

Now add access key and secret key for authorization to AWS as follow

After applying all the variable set run the task from the workspace and confirm apply 

In EC2 you can find the instance in the list

Destruction and Deletion: To remove the instance and workspace follow the below steps

• Goto -> Workspace -> Settings -> Destruction and Deletion
• click on Queue Destroy Plan to delete the resources on cloud
• Goto -> Workspac -> Runs -> Click on Confirm & Apply
• Add Comment: Approved for Deletion