Cannot connect to localhost PgAdmin 4 server


I have just downloaded Metabase and it looks like a great tool. However, I am having issues connecting it to a local postgresql server running through PgAdmin 4.

I have got metabase running only my localhost using port 3000, inside a docker container:

Here is what my SQL database settings look like:

However, every time I try and connect, I get this issue:

Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.

Can someone please explain to me what I am doing wrong? I am completely new to Metabase so step by step explanations would be super appreciated.

Thank you!

Hi @zigzagdoom
If you’re running Metabase in Docker, then localhost is the container itself.
If you need to connect from the container to the host, then have a look here:

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Thank you @flamber!

@flamber - I am having this same problem and don't understand the solution you've provided. I am running Metabase in Docker.

Note: Both Docker and my Postgres sql database (through DBeaver) are running locally on my Windows machine.

Note 2: I am totally new to this and feel a bit underwater with it all. THANK YOU

Would I run the following command then?

docker run --add-host=docker: --rm -it metabase/metabase

@rkacton It sounds like a totally different problem from this topic, which is about PgAdmin.

I would recommend that you use JAR if you're not familiar with Docker:

If you want to use Docker, but not sure how Docker works, then I would recommend looking for help on (or another Docker forum) since your problem is not specific to Metabase.

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