Actually use backend config

[ndr-ds]

Motivation

We were defining this config, but AFAIU we weren't actually using it

Proposal

Use the config

Test Plan

Deployed a network with this change

Release Plan

• Nothing to do / These changes follow the usual release cycle.

[ndr-ds]

• Make ScyllaDB replication factor configurable #3788 : 2 dependent PRs (#3638 , #3880 )
• Add Local SSD support #3879
• Add dual store support #3878
• Recursively create parent directories when creating config dir #3897
• Adjust state hash computation bucket #3877
• Actually use backend config #3876 👈 (View in Graphite)
• Make release the default mode for Dockerfile #3871 : 1 other dependent PR (#3113 )
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[ma2bd]

assuming this is tested in CI

[ndr-ds]

Sorry, I've updated the test plan. It's not tested in CI, but I've deployed a network with this change

[ndr-ds]

Merge activity

• May 9, 5:25 PM EDT: A user started a stack merge that includes this pull request via Graphite.
• May 9, 5:25 PM EDT: @ndr-ds merged this pull request with Graphite.