Answers "should we stop creating an admin/pass on start" with the split the
catalog actually has, rather than one way for everything.
Ten apps need it: adguard, authelia, bookstack, matrix, nextcloud, owncloud,
pihole, rocketchat, stalwart, speedtest and headscale either pass the generated
password into the container or hand it to an install hook that creates the
account. There the password IS the working credential — dropping it would lock
you out. Left alone.
Three do not create an account at all: gitea, invidious and mattermost seed no
user (the first one comes from their own signup flow or the Create Account tool),
so the password minted at install named nothing. The WebUI credentials card
showed a password that could not log in. They now match linkding — an empty,
unslotted ADMIN_PASSWORD the auth adapter fills when the operator makes the first
admin, and keeps in step on later resets. Unslotted because the slot number marks
a value the installer generates.
mattermost's adapter also had linkding's bug: it persists ADMIN_PASSWORD but the
config declared only ADMIN_EMAIL, so the write was a no-op.
WebUI: rocketchat's generated admin password had no field mapping, so the card
could not show it. Added, plus a generic ADMIN_USER entry — six apps record an
admin username the card had no way to display.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Rocket.Chat tails the Mongo oplog for realtime delivery, and a standalone
mongod has no oplog — so the database has to be a replica set even with one
member.
Uses the official mongo image rather than bitnami/mongodb (which upstream's own
compose uses) because Bitnami moved its catalog behind a paid registry and the
free tags are no longer dependable for a long-lived install. The cost is that
rs.initiate() is not automatic, so the post-start hook runs it once — guarded by
rs.status() so a reinstall over restored data doesn't re-initiate a live set,
and followed by a wait for the member to report itself primary.
Mongo runs without auth: enabling it on a replica set also requires a shared
keyfile for member-to-member auth, which is a lot of moving parts for a database
that is never published outside the docker network.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
