I updated this PR to conditionally work based on a D9_LAUNCH ENV variable. If this approach seems OK I will:

1. Open a puppet PR to add D9_LAUNCH = false (or, just ask Ops to add the var entirely at launch time)
2. Communicate with Ops about the need to flip this flag to true at launch time
3. Open a ticket in this repo to clean up the conditionals after launch

@marlo-longley that sounds like a good approach to me.

This PR in Puppet is approved and I communicated with Rob from Ops -- he will merge it Sunday night 7/31.
https://github.com/sul-dlss/puppet/pull/9693

I also created a cleanup ticket and assigned myself: #596

That should mean we can merge in this code now and it won't take effect til after the Puppet merge.