fix (commented out) rocketchat to work with latest versions

doc/docker/development/docker-compose.yml

@@ -227,7 +227,7 @@ services:
 
   # Rocket.Chat server
   #rocketchat:
-  #  image: quay.io/egroupware/rocket.chat:latest
+  #  image: quay.io/egroupware/rocket.chat:stable6
   #  command: >
   #      sh -c
   #        "while true; do
@@ -248,8 +248,8 @@ services:
   #    # IMPORTANT: change ROOT_URL to your actual url eg. https://domain.com/rocketchat
   #    - ROOT_URL=http://localhost/rocketchat
   #    - PORT=3000
-  #    - MONGO_URL=mongodb://mongo:27017/rocketchat
-  #    - MONGO_OPLOG_URL=mongodb://mongo:27017/local
+  #    - MONGO_URL=mongodb://mongo:27017/rocketchat?replicaSet=rs0&directConnection=true
+  #    - MONGO_OPLOG_URL=mongodb://mongo:27017/local?replicaSet=rs0&directConnection=true
   #  #     - HTTP_PROXY=http://proxy.domain.com
   #  #     - HTTPS_PROXY=http://proxy.domain.com
   #  depends_on:
@@ -267,13 +267,23 @@ services:
   #  volumes:
   #    - mongo:/data/db
   #    - $PWD/data/default/rocketchat/dump:/dump
-  #  command: mongod --oplogSize 128 --replSet rs0
+  #  command: mongod --oplogSize 128 --replSet rs0 --storageEngine=wiredTiger
   #  container_name: rocketchat-mongo
   # this container's job is just run the command to initialize the replica set.
   # it will run the command and remove himself (it will not stay running)
   #mongo-init-replica:
   #  image: mongo:5.0
-  #  command: 'bash -c "for i in `seq 1 30`; do mongo mongo/rocketchat --eval \"rs.initiate({ _id: ''rs0'', members: [ { _id: 0, host: ''localhost:27017'' } ]})\" && s=$$? && break || s=$$?; echo \"Tried $$i times. Waiting 5 secs...\"; sleep 5; done; (exit $$s)"'
+  #  command: >
+  #      bash -c
+  #        "for (( ; ; )); do
+  #          mongo mongo/rocketchat --eval \"
+  #            rs.initiate({
+  #              _id: 'rs0',
+  #              members: [ { _id: 0, host: 'localhost:27017' } ]})\" &&
+  #          s=$$? && break || s=$$?;
+  #          echo \"Could not reach MongoDB. Waiting 5 secs ...\";
+  #          sleep 5;
+  #        done; (exit $$s)"
   #  depends_on:
   #    - mongo
 

doc/docker/development/nginx.conf

@@ -163,7 +163,7 @@ server {
 	}
 
 	# proxy into rocketchat container
-	#location /rocketchat {
+	#location / {
 	#	proxy_pass http://rocketchat:3000;
 	#	proxy_set_header Upgrade $http_upgrade;
 	#	proxy_set_header Connection "upgrade";