sql.Open is lazy, so a permission problem surfaced from whichever query ran
first: "create schema_migrations: unable to open database file (14)", which
names neither the file nor the reason. Ping on open and report the path and
the effective uid and gid instead.
The cause in practice is a bind-mounted ./data that Docker created as root
while the container runs as FOODSTER_UID. Documented in the README.
Esa Kataja
813e82ef5c