Open pvgenuchten opened 2 years ago
Aha good catch! The the Docker Bash script parses out ${DB_HOST}
from the ${SQLALCHEMY_DATABASE_URI}
but not ${DB_PORT}
, so the default of 5432
is taken.
That (parsing/using ${DB_PORT}
could be the ultimate solution, but for the time being setting the standard PG-var PGPORT
can help.
Note that there has been a merged PR that attempts to solve the "Is PostgreSQL Ready?" trials using the
SQLALCHEMY_ENGINE_OPTION_PRE_PING
:
PR #400. But the Docker script does not take that into account and #400 is more geared to lost PG-connections during operations. I should revisit the details if this also works for startup.
IMO the final solution should come from within the GHC Python code not an external Bash-script. This problem ihas been solved a hundred times, suggestions welcome!
docker has a script that checks if postgres is running prior to starting the webapp this script assumes the default port, usually 5432 but you can set a environment variable PGPORT to the relevant db port/. Psql will then use that port
typically you will get this type of messages, if there is a bad port
suggestion to include this aspect in docker documentation