I do a "docker container ls" and then a "docker logs -f xxxxxx" for the different containers running. And actually this morning I do see an error, although not directly connected to the problems showing up in the web app. The log for the htttps-portal container shows these messages (which seem to happen at time of launching the containers):
021/08/25 01:21:01 [emerg] 178#178: bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
I am taking a look at why port 80 seems to be in use. Will post back when I find out what might be going on