add a terraform cloudbuild config (#730)

Co-authored-by: Roger Martinez <[email protected]>

ops/terraform.cloudbuild.yaml

@@ -0,0 +1,81 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+steps:
+# Echo environment name
+  - id: 'environment name'
+    name: 'alpine'
+    entrypoint: 'sh'  
+    args: 
+      - '-c'
+      - | 
+        echo "***********************"
+        echo "Setting up Emblem $_ENV infrastructure"
+        echo "***********************"
+
+# Initialize Terraform
+  - id: 'tf init'
+    name: 'hashicorp/terraform:1.0.0'
+    entrypoint: 'sh'
+    env:
+      - 'GOOGLE_IMPERSONATE_SERVICE_ACCOUNT=$_TF_SERVICE_ACCT'
+    args: 
+      - '-c'
+      - |
+        if [ -d "environments/$_ENV/" ]; then
+          cd environments/$_ENV
+          terraform init -backend-config="bucket=${_STATE_GCS_BUCKET_NAME}" -backend-config="prefix=$_ENV"
+        else
+          echo "*************** TERRAFORM INIT ******************"
+          echo "******* Environment $_ENV not found. ********"
+          echo "*************************************************"
+          exit 1
+        fi 
+
+# Generate speculative Terraform plan
+  - id: 'tf plan'
+    name: 'hashicorp/terraform:1.0.0'
+    entrypoint: 'sh'
+    env:
+      - 'GOOGLE_IMPERSONATE_SERVICE_ACCOUNT=$_TF_SERVICE_ACCT'
+    args: 
+    - '-c'
+    - | 
+        if [ -d "environments/$_ENV/" ]; then
+          cd environments/$_ENV
+          terraform plan
+        else
+          echo "*************** TERRAFORM PLAN ******************"
+          echo "******* Environment $_ENV not found. ********"
+          echo "*************************************************"
+          exit 1
+        fi 
+
+# Apply Terraform configuration
+  - id: 'tf apply'
+    name: 'hashicorp/terraform:1.0.0'
+    entrypoint: 'sh'
+    env:
+      - 'GOOGLE_IMPERSONATE_SERVICE_ACCOUNT=$_TF_SERVICE_ACCT'
+    args: 
+    - '-c'
+    - | 
+        if [ -d "environments/$_ENV/" ]; then
+          cd environments/$_ENV    
+          terraform apply -auto-approve
+        else
+          echo "***************************** SKIPPING APPLYING *******************************"
+          echo "******* Environment $_ENV not found. ********"
+          echo "*******************************************************************************"
+        fi