Summary
I’m deploying pixolution/flow on Railway. I attach a Volume at /var/solr (as recommended by Pixolution for persistence). The container starts but keeps logging:

Cannot write to /var/solr as 8983:8983 drwxr-xr-x 3 root root 4096 Aug 5 05:18 /var/solr

It looks like the app runs as user UID/GID 8983 (Solr default), while the mounted volume path is owned by root:root with 755, so the process can’t write.

Environment

• Image: pixolution/flow:latest

• Port: 8983

• Volume: 50 GB, mount path /var/solr

• Region: Southeast Asia (Singapore)

• Start Command: default (no override)

• Topology: single service (Flow) + one persistent Volume
  
  https://docs.pixolution.io/getting-started/docker-install/