feat: Updated GCP Authentication step with required attributes (#102)

Author: VishwajitNagulkar

.github/workflows/terraform_workflow.yml

@@ -63,12 +63,9 @@ on:
       AWS_SESSION_TOKEN:
         required: false
         description: 'AWS Session Token to install AWS CLI'
-      GCP_SA_KEY:
+      GCP_CREDENTIALS:
         required: false
-        description: 'GCP service account Secret access key to install GCP CLI'
-      PROJECT_ID:
-        required: false
-        description: 'GCP Secret access key to install GCP CLI'
+        description: 'The Google Cloud JSON service account key to use for authentication'
       env-vars:
         required: false
         description: 'Pass required environment variables'
@@ -109,13 +106,11 @@ jobs:
         with:
           creds: ${{ secrets.AZURE_CREDENTIALS }}
 
-      - name: Install GCP CLI
+      - name: 'Authenticate to Google Cloud'
         if: ${{ inputs.provider == 'gcp' }}
-        uses: google-github-actions/auth@v1
+        uses: 'google-github-actions/auth@v1'
         with:
-          service_account_key: ${{ secrets.GCP_SA_KEY }}
-          project_id: ${{ secrets.PROJECT_ID }}
-          region: ${{ inputs.gcp_region }}
+          credentials_json: '${{ secrets.GCP_CREDENTIALS }}'
 
       - name: Install doctl
         if: ${{ inputs.provider == 'digitalocean' }}

docs/terraform_workflow.md

@@ -111,7 +111,7 @@ jobs:
         terraform_version:  # Specify terraform version e.g 1.3.6
         destroy:            # If the value is set to true, the workflow proceeds to the destroy step. However, the default value is false
      secrets:
-      GCP_SA_KEY:           # GCP service account Secret access key
+      GCP_CREDENTIALS:      # The Google Cloud JSON service account key to use for authentication
       env-vars: |           # Specify env variables in following format
              key1=value1
              key2=value2