500 Service Unavailable

[Ola]

I just completed a Docker installation for Dspace 7 using the documentation https://wiki.lyrasis.org/display/DSPACE/Try+out+DSpace+7#TryoutDSpace7-InstallviaDocker on a live server. 

I am trying to test installation as production (yes I know it is currently not production ready) but unfortunately, I go the error below. From my findings, I believe this could be the "No _links section found at..." error.

Would appreciate some suggestions on how best to fix this.

[Tim Donohue]

Hi,

Is it possible that you are trying to access this Docker setup from a non-localhost URL?  If so, that'd be the the issue.  As we've noted, these images are not production ready, and while it would be possible to get them running on a non-localhost URL, they won't work that way out-of-the-box.  The basic instructions you link to will only work when running the Docker images from localhost and accessing them from http://localhost:4000/ (and similar) in your web browser.

For any "production like" Docker setup, you will need to minimally modify the configuration of these running Docker containers.  We don't currently have detailed instructions on how to do this, because these images were all created for development purposes only.  More than likely, you'd need to startup the frontend & backend *separately* using the approach noted here: https://github.com/DSpace/DSpace/tree/main/dspace/src/main/docker-compose#run-dspace-7-rest-and-angular-from-local-branches

You'd also likely need to modify the configuration of the backend Docker container to allow it to run from a non-localhost URL.  This would require possibly creating a local.cfg in the [dspace-src]/dspace/config/ directory which would sync to the container, as described here:  https://github.com/DSpace/DSpace/tree/main/dspace/src/main/docker-compose#modify-dspace-configuration-in-docker 

Unfortunately, the reality here is that you are likely hitting issues related to the fact that these images aren't production ready.  While it **is possible** to run DSpace 7 on Docker in Production (and you could base your Production install on these images), you will need to likely modify the images or their configuration directly to do so...and we don't have instructions for that.  This is why we have the warning saying "These images are not production ready".

If you have more specific questions, or if I've misunderstood your setup, please let us know on this mailing list.  If I have misunderstood the issue, then you may need to debug the 500 error being returned by using the Troubleshooting guide: https://wiki.lyrasis.org/display/DSPACE/Troubleshoot+an+error#Troubleshootanerror-DSpace7.x(orabove)   This might require having to SSH into the running Docker container to see what is also in the DSpace logs.

Tim