Hello, I'm trying to run the supertools postgres d...
# support-questions-legacyz
zngb
06/03/2022, 4:22 PMHello, I'm trying to run the supertools postgres docker image for the first time locally to try out stuff.
I get a message like this pretty early in the container logs:
Driver class org.postgresql.Driver not found in Thread context class loader jdk.internal.loader.ClassLoaders$AppClassLoader@942a29c, trying classloader java.net.URLClassLoader@6a024a67r
rp_st
06/03/2022, 4:28 PMHey! This is quite unusual.
What is your docker compose file? Can you send it so i can try and replicate this?
z
zngb
06/03/2022, 4:30 PMI'm not using a compose file ATM, just running with
docker runr
rp_st
06/03/2022, 4:30 PMAh right. So is
host.docker.internalz
zngb
06/03/2022, 4:35 PMI tried resolving host.docker.internal from another container but that failed, maybe I'm donig something weird or my docker version is strange
r
rp_st
06/03/2022, 4:36 PMI also just tried a similar command on my system right now and it worked:
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docker run --name supertokens -e POSTGRESQL_CONNECTION_URI="postgresql://root:root@192.168.1.18:5432/supertokens" registry.supertokens.io/supertokens/supertokens-postgresqlrp_st
06/03/2022, 4:36 PMMaybe try following this blog: https://supertokens.com/blog/connect-supertokens-to-database
rp_st
06/03/2022, 4:37 PMI think the issue might be to do with
host.docker.internalz
zngb
06/03/2022, 4:38 PMthanks, i'm going to try a few things, maybe I need some networking flag to bridge the host's network
r
rp_st
06/03/2022, 4:39 PMyea. Maybe. If you run into this issue again, maybe trying removing the image from your system and repulling it
z
zngb
06/03/2022, 4:41 PMhttps://stackoverflow.com/a/62431165 this seems to do the trick
zngb
06/03/2022, 4:41 PMthanks
r
rp_st
06/03/2022, 4:41 PMok great!
z
zngb
06/03/2022, 4:43 PM Copy code
docker run --name supertokens -e POSTGRESQL_CONNECTION_URI="postgresql://postgres:blablabla@host.docker.internal/supertokens" -d --add-host=host.docker.internal:host-gateway registry.supertokens.io/supertokens/supertokens-postgresqlzngb
06/03/2022, 4:45 PMI was initially thinking something is strange with the Java class loader, maybe some error message gets swallowed somewhere so we don't see a clear "can't resolve host"
r
rp_st
06/03/2022, 4:45 PMYeaaa. That is a bit strange indeed.
rp_st
06/03/2022, 4:47 PMMy guess is that the class that parses and connects to a connection URI tries to fine the right type of connector / driver based on the syntax of the provided string. And for the string you provided, it couldn’t find any such driver. Hence that error.
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