⚙️ Use valkyrie and show backtrace on staging

This commit will add the HYRAX_VALKYRIE env var so Hyku will now use
Valkyrie.  It will also add a HYKU_SHOW_BACKTRACE env var so that the
backtrace will be shown on the staging server.

Author: Kirk Wang

config/environments/production.rb

@@ -14,7 +14,7 @@
   config.eager_load = true
 
   # Full error reports are disabled and caching is turned on.
-  config.consider_all_requests_local       = false
+  config.consider_all_requests_local = ActiveModel::Type::Boolean.new.cast(ENV.fetch('HYKU_SHOW_BACKTRACE', 'false'))
   config.action_controller.perform_caching = true
 
   # Disable serving static files from the `/public` folder by default since

ops/demo-deploy.tmpl.yaml

@@ -125,6 +125,8 @@ extraEnvVars: &envVars
     value: "false"
   - name: HYRAX_FITS_PATH
     value: /app/fits/fits.sh
+  - name: HYRAX_VALKYRIE
+    value: "true"
   - name: HYKU_ADMIN_HOST
     value: hyku-demo.$BASE_URL
   - name: HYKU_ADMIN_ONLY_TENANT_CREATION

ops/staging-deploy.tmpl.yaml

@@ -125,6 +125,8 @@ extraEnvVars: &envVars
     value: "false"
   - name: HYRAX_FITS_PATH
     value: /app/fits/fits.sh
+  - name: HYRAX_VALKYRIE
+    value: "true"
   - name: HYKU_ADMIN_HOST
     value: hyku-staging.$BASE_URL
   - name: HYKU_ADMIN_ONLY_TENANT_CREATION
@@ -139,6 +141,8 @@ extraEnvVars: &envVars
     value: "true"
   - name: HYKU_ROOT_HOST
     value: hyku-staging.$BASE_URL
+  - name: HYKU_SHOW_BACKTRACE
+    value: "true"
   - name: HYKU_USER_DEFAULT_PASSWORD
     value: password
   - name: NEGATIVE_CAPTCHA_SECRET