Don't error out if we're not on the zeroth instance; use conditional …

…instead.

backend/.profile

@@ -36,19 +36,20 @@ export NEW_RELIC_HOST="gov-collector.newrelic.com"
 # We only want to run migrate and collecstatic for the first app instance, not
 # for additional app instances, so we gate all of this behind CF_INSTANCE_INDEX
 # being 0.
-[ "$CF_INSTANCE_INDEX" = 0 ] &&
-echo 'Starting API schema deprecation' &&
-python manage.py drop_deprecated_api_schemas_and_views &&
-echo 'Finished API schema deprecation' &&
-echo 'Starting API schema creation' &&
-python manage.py create_api_schemas &&
-echo 'Finished API schema creation' &&
-echo 'Starting migrate' &&
-python manage.py migrate &&
-echo 'Finished migrate' &&
-echo 'Starting API view creation' &&
-python manage.py create_api_views &&
-echo 'Finished view creation' &&
-echo 'Starting collectstatic' &&
-python manage.py collectstatic --noinput &&
-echo 'Finished collectstatic'
+if [[ "$CF_INSTANCE_INDEX" == 0 ]]; then
+    echo 'Starting API schema deprecation' &&
+    python manage.py drop_deprecated_api_schemas_and_views &&
+    echo 'Finished API schema deprecation' &&
+    echo 'Starting API schema creation' &&
+    python manage.py create_api_schemas &&
+    echo 'Finished API schema creation' &&
+    echo 'Starting migrate' &&
+    python manage.py migrate &&
+    echo 'Finished migrate' &&
+    echo 'Starting API view creation' &&
+    python manage.py create_api_views &&
+    echo 'Finished view creation' &&
+    echo 'Starting collectstatic' &&
+    python manage.py collectstatic --noinput &&
+    echo 'Finished collectstatic'
+fi