Added templated region to config

Author: bmonkman

.circleci/config.yml

@@ -112,7 +112,7 @@ jobs:
       - store_artifacts:
           path: test-reports
 
-      # Requires the SLACK_WEBHOOK
+      # Requires the SLACK_WEBHOOK env var to be set
       - slack/notify-on-failure
 
   build:
@@ -153,9 +153,16 @@ jobs:
       bucket:
         description: The S3 Bucket to sync files to.
         type: string
+      region:
+        type: string
+        default: ''
+        description: |
+          The region to use for AWS operations.
     steps:
       - attach_workspace:
           at: *workspace
+      - run: # Required by aws-cli
+          command: echo 'export AWS_REGION=<< parameters.region >>' >> $BASH_ENV
       - aws-s3/sync:
           from: build
           overwrite: true
@@ -180,7 +187,8 @@ workflows:
             name: deploy_staging
             requires:
               - build
-            bucket: <% index .Params `stagingFrontendHost` %>
+            bucket: "<% index .Params `stagingFrontendHost` %>"
+            region: "<% index .Params `region` %>"
             # Depending on your development flow you may want to also only deploy to staging on master.
             # filters:
             #   branches:
@@ -192,7 +200,8 @@ workflows:
             requires:
               - build
               - deploy_staging
-            bucket: <% index .Params `productionFrontendHost` %>
+            bucket: "<% index .Params `productionFrontendHost` %>"
+            region: "<% index .Params `region` %>"
             filters:
               branches:
                 only:  # only branches matching the below regex filters will run