I have installed Magento 2 while also playing with Docker dev environment. I have a problem logging into Magento2 admin panel.
After I enter the correct username and password, I am being redirected back to the login screen, but the URL changes to http://magento2.dev.local/admin_m11a7k/admin/dashboard/index/key/2481eca5d84c964ff31e222ca50c85d68593dfbbf0ed086af8082bd5c8c6a932/
var/session looks like this after trying to log in:
-rw------- 1 wjarka www-data 0 5 lis 17:52 sess_125312a61b14e31b5d0857a1e30b80d2
-rw------- 1 wjarka www-data 0 5 lis 17:52 sess_feb318bcf09cf6fc012e37ac72813f46
Session files are empty, so I guess this is some kind permissions problem? Looks like it's creating the files in a way that it's not able to read it later? It probably should be www-data:www-data, right? And for some reason it uses wjarka:www-data.
PHP-FPM runs as www-data, so that's... weird. Anything I might be missing?
I am using Docker containers for php 5.6-fpm and apache 2.4 from official repos.
UPDATE #1 It seems like I know a workaround, but I am still looking for a permanent fix.
I have moved the session storage to a directory owned by www-data and that is in the container (and not shared through NFS). That worked just fine!
Then I tried to create a new dir on my local filesystem that would be owned by www-data:www-data (33:33). And share my local dir with the docker container in the new path. And then it fails.
So it seems like NFS sharing is messing it up.