Proves the CONFIG_TEMPLATE_DIRECTORY redirect works before Phase 2b
adds any actual cross-site dependency. Content is byte-identical to
the chart's current rendering (confirmed live) - this commit only
tests the override plumbing itself: a new ConfigMap
(praefect-ha-configmap.yaml) mounted at a different path than the
chart's own /etc/gitaly/templates (can't reuse that path/volume name -
Kubernetes rejects duplicates), with CONFIG_TEMPLATE_DIRECTORY
overridden via extraEnv to point at it instead (last-wins env
semantics, confirmed Kubernetes-documented behavior).
Also removes gitlab.praefect.virtualStorages - confirmed live dead
config, global.praefect.virtualStorages is what the chart's template
actually reads.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
