How to change the solr configuration?

[zhaozhiming]

hi,
I want to change the configuration of solr, but the image don't have vim, and can't use sudo to install software, how to change config?
Please help, thanks.

[makuk66]

There are various options:

• you can copy the file from the container to your host, edit there, and copy back. With e.g. docker cp c8476689cc67:/opt/solr-5.2.1/server/solr/solr.xml . then docker exec -i c8476689cc67 dd of=/opt/solr-5.2.1/server/solr/solr.xml < solr.xml. That last one is a bit ugly; see Moving a file from the host system to a container via docker cp moby/moby#5846 for a feature request to make that nicer.
• you can copy the modified file to a volume (see https://docs.docker.com/userguide/dockervolumes/), and copy it into place on the container. That can get a little messy with ownership user ids.
• you can docker exec into the container and edit the file with cat and copy/paste, or for some kinds of edits use sed -i
• you can build a new image using this one as a base, and apply your desired config at build time. That's what I'd recommend rather than messing with a particular container contents.
• you can build a new image using this one as a parent, and include vim or any other editor you want

Out of interest, what specific changes are you considering?