New opt-in prompt on fresh/new installs (skipped on "update" reruns,
where an existing instance is already in real use and importing over
it would be destructive): "Migrating from an existing Mattermost
instance (e.g. PikaPods)?" -- if yes, generates
migrate-from-pikapods.sh in the instance's own directory, same
generated-helper pattern as Immich's import-photos.sh.
Checked PikaPods' own docs before writing this rather than guessing
at their export mechanics: they expose per-pod SFTP (file access) and
a Database-access toggle that hands you an Adminer link for a full
SQL dump -- their own documented backup/migration flow is stop the
pod, SFTP the files, export the DB via Adminer. The generated script
assumes that shape (plain-text SQL dump + a files directory) and says
so in its header, including that PikaPods' exact SFTP layout wasn't
verified against a live pod so the files-argument path needs the
user's own confirmation.
What the script does: stops the mattermost container (leaves the DB
container running), drops and recreates the database owned by the
same existing role -- so .env's credentials are never touched or
regenerated, avoiding the "restored data, mismatched password" bug
class fixed elsewhere in this repo -- imports the dump via psql,
rsyncs the files directory into ./data, restarts. Requires typing
"YES" to proceed since it's destructive to whatever's currently in
the fresh instance's database.
Correctly parameterized per-instance: pulled from install_mattermost's
own MM_CONTAINER/DB_CONTAINER variables, so it's already correct for
either the first instance or an additional named one.
Verified end-to-end: prompt fires correctly at the right point in the
flow, generated script is syntactically valid, and the container
names/paths it's parameterized with match the actual instance being
installed.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TBtExJcqxnokyZZKmphdug
Claude
5f36b14f93