Issue with Collabora CODE, Nextcloud & Nginx using docker-compose - docker

Question

I am trying to get a docker-compose.yaml together to run Nextcloud and Collabora CODE via Nginx Proxy Manager.
So far I have Nginx and Nextcloud working really nicely with persistent volumes so that my configs survive kill & rm. My issue is that I cannot get my Collabora CODE instance to link to Nextcloud. There are multiple bits that I might have got wrong so I'll dump as much info as I can here.
I have the following subdomains all pointing at my server:
collabora.domain.tld nextcloud.domain.tld nginx.domain.tld
... and set up as proxy hosts:
As I mentioned, the Nginx and Nextcloud setups are great. When I point my browser at collabora.domain.tld I see the OK message. I can also access the admin page at collabora.domain.tld/loleaflet/dist/admin/admin.html
The NPM entry for collabora.domain.tld is below:
My docker-compose.yaml has gone through several iterations in an attempt to get this working, but my current attempt is below:
version: '3'
volumes:
nextcloud-data:
nextcloud-db:
npm-data:
npm-ssl:
npm-db:
networks:
frontend:
backend:
services:
code:
image: collabora/code:latest
restart: always
environment:
- password=${COLLABORA_PASSWORD:?Not defined!}
- username=${COLLABORA_USERNAME:?Not defined!}
- domain=${COLLABORA_DOMAIN:?Not defined!}
expose:
- "9980"
networks:
- frontend
- backend
nextcloud-app:
image: nextcloud:stable
restart: always
volumes:
- nextcloud-data:/var/www/html
environment:
- MYSQL_PASSWORD=${NC_MYSQL_PASSWORD:?Not defined!}
- MYSQL_DATABASE=nextcloud
- MYSQL_USER=nextcloud-user
- MYSQL_HOST=nextcloud-db
networks:
- frontend
- backend
nextcloud-db:
image: mariadb
restart: always
command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW --innodb-file-per-table=1 --skip-innodb-read-only-compressed
volumes:
- nextcloud-db:/var/lib/mysql
environment:
- MYSQL_ROOT_PASSWORD=${NC_MYSQL_ROOT_PASSWORD:?Not defined!}
- MYSQL_PASSWORD=${NC_MYSQL_PASSWORD:?Not defined!}
- MYSQL_DATABASE=nextcloud
- MYSQL_USER=nextcloud-user
networks:
- backend
npm-app:
image: jc21/nginx-proxy-manager:latest
restart: always
ports:
- "80:80"
- "81:81"
- "443:443"
environment:
- DB_MYSQL_HOST=npm-db
- DB_MYSQL_PORT=3306
- DB_MYSQL_USER=npm-user
- DB_MYSQL_PASSWORD=${NPM_MYSQL_PASSWORD:?Not defined!}
- DB_MYSQL_NAME=npm
volumes:
- npm-data:/data
- npm-ssl:/etc/letsencrypt
networks:
- frontend
- backend
npm-db:
image: jc21/mariadb-aria:latest
restart: always
environment:
- MYSQL_ROOT_PASSWORD=${NPM_MYSQL_ROOT_PASSWORD:?Not defined!}
- MYSQL_DATABASE=npm
- MYSQL_USER=npm-user
- MYSQL_PASSWORD=${NPM_MYSQL_PASSWORD:?Not defined!}
volumes:
- npm-db:/var/lib/mysql
networks:
- backend
$COLLABORA_DOMAIN is set to nextcloud.domain.tld.
Any ideas what I have done wrong, and how to get my Nextcloud connected to CODE?

Answer 1

What do your custom locations look like? See, e.g. https://www.collaboraoffice.com/code/nginx-reverse-proxy/
I have a very similar setup, except the collabora instance is not in docker compose, as that never worked for me.
Make sure you have specified your domain environmental variable correctly (dot escaping etc.)