# To create the service account in GCP
$  gcloud iam service-accounts create github-action-gcp --display-name "github-action-gcp"         


# Verify the service account
$ gcloud iam service-accounts list

# Binding role with sercvce account in GCP
# Binding Storage admin role with service account
$ gcloud projects add-iam-policy-binding <Procject-ID> \
            --member='serviceAccount:github-action-gcp@<Procject-ID>.iam.gserviceaccount.com' \
            --role='roles/storage.admin'

# Creatng json key through cli 
$ gcloud iam service-accounts keys create <key.json> --iam-account=github-action-gcp@<Procject-ID>.iam.gserviceaccount.com

# This workflow installs the latest version of Terraform CLI and configures the Terraform CLI configuration file
# with an API token for Terraform Cloud (app.terraform.io). On pull request events, this workflow will run
# `terraform init`, `terraform fmt`, and `terraform plan` (speculative plan via Terraform Cloud). On push events
# to the "main" branch, `terraform apply` will be executed.
#
# Documentation for `hashicorp/setup-terraform` is located here: https://github.com/hashicorp/setup-terraform
#
# To use this workflow, you will need to complete the following setup steps.
#
# 1. Create a `main.tf` file in the root of this repository with the `remote` backend and one or more resources defined.
#   Example `main.tf`:
#     # The configuration for the `remote` backend.
#     terraform {
#       backend "remote" {
#         # The name of your Terraform Cloud organization.
#         organization = "example-organization"
#
#         # The name of the Terraform Cloud workspace to store Terraform state files in.
#         workspaces {
#           name = "example-workspace"
#         }
#       }
#     }
#
#     # An example resource that does nothing.
#     resource "null_resource" "example" {
#       triggers = {
#         value = "A example resource that does nothing!"
#       }
#     }
#
#
# 2. Generate a Terraform Cloud user API token and store it as a GitHub secret (e.g. TF_API_TOKEN) on this repository.
#   Documentation:
#     - https://www.terraform.io/docs/cloud/users-teams-organizations/api-tokens.html
#     - https://help.github.com/en/actions/configuring-and-managing-workflows/creating-and-storing-encrypted-secrets
#
# 3. Reference the GitHub secret in step using the `hashicorp/setup-terraform` GitHub Action.
#   Example:
#     - name: Setup Terraform
#       uses: hashicorp/setup-terraform@v1
#       with:
#         cli_config_credentials_token: ${{ secrets.TF_API_TOKEN }}

name: 'Terraform'

on:
  push:
    branches: [ "main" ]
  pull_request:

permissions:
  contents: read

jobs:
  terraform:
    name: 'Terraform'
    runs-on: ubuntu-latest
    environment: production

    # Use the Bash shell regardless whether the GitHub Actions runner is ubuntu-latest, macos-latest, or windows-latest
    defaults:
      run:
        shell: bash

    steps:
    # Checkout the repository to the GitHub Actions runner
    - name: Checkout
      uses: actions/checkout@v3

    # Install the latest version of Terraform CLI and configure the Terraform CLI configuration file with a Terraform Cloud user API token
    - name: Setup Terraform
      uses: hashicorp/setup-terraform@v1
      with:
        cli_config_credentials_token: ${{ secrets.TF_API_TOKEN }}

    # Initialize a new or existing Terraform working directory by creating initial files, loading any remote state, downloading modules, etc.
    - name: Terraform Init
      run: terraform init

    # Checks that all Terraform configuration files adhere to a canonical format
    - name: Terraform Format
      run: terraform fmt -check

    # Generates an execution plan for Terraform
    - name: Terraform Plan
      run: terraform plan -input=false

      # On push to "main", build or change infrastructure according to Terraform configuration files
      # Note: It is recommended to set up a required "strict" status check in your repository for "Terraform Cloud". See the documentation on "strict" required status checks for more information: https://help.github.com/en/github/administering-a-repository/types-of-required-status-checks
    - name: Terraform Apply
      if: github.ref == 'refs/heads/"main"' && github.event_name == 'push'
      run: terraform apply -auto-approve -input=false

name: 'Terraform'

on:
  push:
    branches: [ "main" ]
  pull_request:

permissions:
  contents: read

jobs:
  terraform:
    name: 'Terraform'
    runs-on: ubuntu-latest
    environment: production

    # Use the Bash shell regardless whether the GitHub Actions runner is ubuntu-latest, macos-latest, or windows-latest
    defaults:
      run:
        shell: bash

    steps:
    # Checkout the repository to the GitHub Actions runner
    - name: Checkout
      uses: actions/checkout@v3

    # Install the latest version of Terraform CLI and configure the Terraform CLI configuration file with a Terraform Cloud user API token
    - name: Setup Terraform
      uses: hashicorp/setup-terraform@v1
      with:
        cli_config_credentials_token: ${{ secrets.TF_API_TOKEN }}

    # Initialize a new or existing Terraform working directory by creating initial files, loading any remote state, downloading modules, etc.
    - name: Terraform Init
      run: terraform init
      env:
        GOOGLE_CREDENTIALS: ${{ secrets.GOOGLE_CREDENTIALS }} 

    # Checks that all Terraform configuration files adhere to a canonical format
    - name: Terraform Format
      run: terraform fmt -check

    # Generates an execution plan for Terraform
    - name: Terraform Plan
      run: terraform plan -input=false
      env:
        GOOGLE_CREDENTIALS: ${{ secrets.GOOGLE_CREDENTIALS }} 

      # On push to "main", build or change infrastructure according to Terraform configuration files
      # Note: It is recommended to set up a required "strict" status check in your repository for "Terraform Cloud". See the documentation on "strict" required status checks for more information: https://help.github.com/en/github/administering-a-repository/types-of-required-status-checks
    - name: Terraform Apply
      if: github.ref == 'refs/heads/main' && github.event_name == 'push'
      run: terraform apply -auto-approve -input=false
      env:
        GOOGLE_CREDENTIALS: ${{ secrets.GOOGLE_CREDENTIALS }} 

terraform {
  required_version = ">= 1.0"
  required_providers {
    google = {
      source  = "hashicorp/google"
      version = "~> 4.69.1"
    }
  }
}

provider "google" {
  project = var.project_id
  region  = var.region
}

variable "project_id" {
  default = "gcp-project-390708"
}

variable "region" {
  default = "europe-west2"
}

terraform {
  backend "gcs" {
    bucket = "github-action-gcp-bucket"
    prefix = "githubAction"
  }
}

resource "google_storage_bucket" "Cloud_function_bucket" {
  name                        = "github-action-with-terraform-${var.project_id}"
  location                    = var.region
  project                     = var.project_id
  force_destroy               = true
  uniform_bucket_level_access = true
}