SQL migration connection issue in tutorial

ORY Hydra
#1

Hey everyone,

So I’ve successfully set up and configured my hydra server multiple times now (and even have a working consent app). However, I don’t have a stable server yet (still running on localhost) so I have to set up my server again every time I shut down my computer.

Almost every time I’ve had to do so, I’ve had issues with the following step:

docker run --link ory-hydra-example–postgres:postgres -it --entrypoint hydra oryd/hydra:v0.10.0-alpha.8 migrate sql $DATABASE_URL

It gives me an error like this

ERRO[0075] An error occurred error="Could not connect to SQL: dial tcp xxx.xxx.xxx:5432: getsockopt: connection refused"
INFO[0075] Retrying in 0.100000 seconds…

And I’m unable to figure out why or how to fix it. Sometimes if I switch from one docker tag to another, I’m able to migrate, but other times it won’t work no matter what I do. Has anyone encountered this issue before? What do I do?

#2

This can have two causes:

  1. You’re connecting to postgres too fast - the image is running but it doesn’t accept connections yet. In that case, just wait a few seconds, the migrate command is going to retry until it times out or is successful
  2. You’re using the wrong database URL. Since you redacted your values for DATABASE_URL and also the IP it’s really hard to tell what’s wrong, if you think this is the issue please consider giving the full command chain, including env vars.
#3

I followed the tutorial to the letter up to that point (just copy pasted) so I doubt the DB URL is the problem. I didn’t realize #1 is an possibility but no matter how many times I retry it doesn’t seem to work.

ERRO[0075] An error occurred error=“Could not connect to SQL: dial tcp 23.192.228.106:5432: getsockopt: connection refused”

This is the URL it’s trying to connect to.

Any idea if the docker tag is actually related to the issue? What’s the latest stable tag I should use?

#4

postgres://hydra:secret@postgres:5432/hydra?sslmode=disable and this is the DB URL.

#5

A third possibility is your docker container running postgres, which should be named ory-hydra-example–postgres is no longer running for some reason.

#6

Definitely not the case, I’ve been monitoring the status of the container using docker ps.

#7

Hm, not sure what’s going on on your system. I just ran

$ docker run \
  --name ory-hydra-example--postgres \
  -e POSTGRES_USER=hydra \
  -e POSTGRES_PASSWORD=secret \
  -e POSTGRES_DB=hydra \
  -d postgres:9.6

$ export SYSTEM_SECRET=this_needs_to_be_the_same_always_and_also_very_$3cuR3-._

$ export DATABASE_URL=postgres://hydra:secret@postgres:5432/hydra?sslmode=disable

$ docker run --link ory-hydra-example--postgres:postgres -it --entrypoint hydra oryd/hydra:v0.10.0-alpha.8 migrate sql $DATABASE_URL

without any issues. If you’re running docker on mac / docker on win and don’t have any important stuff running in docker, can you try to factory reset it? Sometimes docker networks are wonky, especially on non-linux.

#8

That worked actually. Weird. Thanks!