docker-compose.multisite-e2e.yml boots two full all-in-one instances
(master + spoke, each with bundled slapd) and a client that drives the
actual HTTP API: seeds admins, mints a join key, joins the spoke, and
verifies the spoke persisted its role across restart, adopted the
pre-join catalog, is enforced read-only, and reports WAN health.
Verified passing locally. Existing docker-compose.test.yml/e2e.yml split
ldap+redis+app into separate containers, which doesn't work here --
POST /api/site/export runs slapcat in-process, so master and spoke each
need their own bundled slapd (Dockerfile.openldap), not a shared one.
wmantly
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