Hallo,
nach anfänglichen Verständnisproblemen läuft EGW 19.1 auf einem neuen CentOS 8 Server. Auch letsencrypt hat sich dank der Hilfe von Stefan und Ralf überreden lassen, auch auf meinem Server für ein Mindestmaß an Sicherheit zu sorgen. Aber leider kommt jetzt das nächste Problem und ich schätze auch hier habe ich irgendwas nicht verstanden.
ich kämpfe mit rocketchat. blödes Ding. Auch unter Berücksichtigung dieser Anmerkungen komme ich nicht weiter:

1. läuft ja mittlerweile
2. nicht mit “404 Not Found, The requested URL /rocketchat/ was not found on this Server”

[root@webserver egroupware-rocketchat]# sudo docker logs rocketchat
LocalStore: store created at
LocalStore: store created at
LocalStore: store created at
Setting default file store to GridFS
LocalStore: store created at
LocalStore: store created at
LocalStore: store created at
Setting default file store to GridFS
{"line":"120","file":"migrations.js","message":"Migrations: Not migrating, already at version 184","time":{"$date":1587581709699},"level":"info"}
ufs: temp directory created at "/tmp/ufs"
Loaded the Apps Framework and loaded a total of 0 Apps!
Updating process.env.MAIL_URL
Using GridFS for custom sounds storage
Using GridFS for custom emoji storage
Browserslist: caniuse-lite is outdated. Please run next command `npm update`
➔ System ➔ startup
➔ +-----------------------------------------------------+
➔ |                    SERVER RUNNING                   |
➔ +-----------------------------------------------------+
➔ |                                                     |
➔ |  Rocket.Chat Version: 3.1.1                         |
➔ |       NodeJS Version: 12.16.1 - x64                 |
➔ |      MongoDB Version: 4.0.17                        |
➔ |       MongoDB Engine: mmapv1                        |
➔ |             Platform: linux                         |
➔ |         Process Port: 3000                          |
➔ |             Site URL: http://172.16.1.4/rocketchat  |
➔ |     ReplicaSet OpLog: Enabled                       |
➔ |          Commit Hash: 0a16a86bee                    |
➔ |        Commit Branch: HEAD                          |
➔ |                                                     |
➔ +-----------------------------------------------------+

[root@webserver egroupware-rocketchat]# sudo docker ps -a
CONTAINER ID        IMAGE                                     COMMAND                  CREATED             STATUS                      PORTS                      NAMES
3f899703f2a1        rocketchat/rocket.chat:latest             "bash -c 'for i in `…"   30 minutes ago      Up 30 minutes               127.0.0.1:3000->3000/tcp   rocketchat
1e9f4af2b6ec        nginx:stable-alpine                       "nginx -g 'daemon of…"   6 days ago          Up 58 minutes               127.0.0.1:8080->80/tcp     egroupware-nginx
d98b02674deb        egroupware/egroupware:latest              "/entrypoint.sh php-…"   6 days ago          Up 58 minutes               9000/tcp                   egroupware
119f00baec41        mongo:4.0                                 "docker-entrypoint.s…"   6 days ago          Exited (0) 30 minutes ago                              egroupware-rocketchat_mongo-init-replica_1
2b5377f6c846        mongo:4.0                                 "docker-entrypoint.s…"   6 days ago          Up 58 minutes               27017/tcp                  rocketchat-mongo
7fba04ff8a53        containrrr/watchtower                     "/watchtower --sched…"   6 days ago          Up 58 minutes                                          egroupware-watchtower
815e61293de7        quay.io/egroupware/collabora-key:stable   "/bin/sh -c 'bash st…"   6 days ago          Up 58 minutes               127.0.0.1:9980->9980/tcp   collabora-key

meine docker-compose:

version: '2'
volumes:
  # store MongoDB on an (internal) Volume
  mongo:

services:
  rocketchat:
    image: rocketchat/rocket.chat:latest
    command: bash -c 'for i in `seq 1 30`; do node main.js && s=$$? && break || s=$$?; echo "Tried $$i times. Waiting 5 secs..."; sleep 5; done; (exit $$s)'
    restart: unless-stopped
    volumes:
      - /var/lib/egroupware/default/rocketchat/uploads:/app/uploads
    # if EGroupware uses a certificate from a private CA, OAuth authentication will fail, you need to:
    # - have the CA certificate stored at /etc/egroupware-docker/private-ca.crt
    # - uncomment the next 2 lines about the private CA:
    # - /etc/egroupware-docker/private-ca.crt:/usr/local/share/ca-certificates/private-ca.crt:ro
    environment:
    # - NODE_EXTRA_CA_CERTS=/usr/local/share/ca-certificates/private-ca.crt
    # IMPORTANT: change ROOT_URL to your actual url eg. https://domain.com/rocketchat
      - ROOT_URL=https://XXXXXXXX/rocketchat
      - PORT=3000
      - MONGO_URL=mongodb://mongo:27017/rocketchat
      - MONGO_OPLOG_URL=mongodb://mongo:27017/local
#     - HTTP_PROXY=http://proxy.domain.com
#     - HTTPS_PROXY=http://proxy.domain.com
    depends_on:
      - mongo
    ports:
      - 127.0.0.1:3000:3000
    container_name: rocketchat
    # set the ip-address of your docker host AND your official DNS name so Rocket.Chat
    # can access EGroupware without the need to go over your firewall
    #extra_hosts:
    #- "my.host.name:ip-address"

  mongo:
    image: mongo:4.0
    restart: unless-stopped
    volumes:
     - mongo:/data/db
     - /var/lib/egroupware/default/rocketchat/dump:/dump
    command: mongod --smallfiles --oplogSize 128 --replSet rs0 --storageEngine=mmapv1
    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:4.0
    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)"'
    depends_on:
      - mongo

…ich komme wieder nicht weiter. oder ich bin einfach zu blöd