Fors off: I am a total beginner when it comes to docker. I do have some self hosting experience, but run pretty much everything in its on lxc and treat it like a full linux system.
Recently I installed immich in a container and was surprised to see how well it worked.
This lead my to finally tackle something I have been putting off for way to long; installing nightscout (a self hosten glucose monitoring&reporting utility).
For that I followed their guide. Everything worked well up untill the point where I wanted to connect to the web interface. I started of by entering my domain into the nightscout containers arguments (in the form subdomain.domain.tld). Then I used my reverse proxy (nginx, not inside docker) to forward the subdomain to the docker IP on Ports 443, then 80 and lastly the one displayed at the container when listing them with docker ps. None of those worked (I was not able to get a certificate using letsEncrypt and got a 404 when connecting without tls).
I then entered nighscout.[docker-IP] and tried to access it dkrectly which did not work either.
When googling I only find comparisons on how to set up nginx in Docker, or comparisons between the two.
docker-compose file
GNU nano 7.2 docker-compose.yml
version: '3'
x-logging:
&default-logging
options:
max-size: '10m'
max-file: '5'
driver: json-file
services:
mongo:
image: mongo:4.4
volumes:
- ${NS_MONGO_DATA_DIR:-./mongo-data}:/data/db:cached
logging: *default-logging
nightscout:
image: nightscout/cgm-remote-monitor:latest
container_name: nightscout
restart: always
depends_on:
- mongo
labels:
- 'traefik.enable=true'
# Change the below Host from `localhost` to be the web address where Nightscout is running.
# Also change the email address in the `traefik` service below.
- 'traefik.http.routers.nightscout.rule=Host(`localhost`)'
- 'traefik.http.routers.nightscout.entrypoints=websecure'
- 'traefik.http.routers.nightscout.tls.certresolver=le'
logging: *default-logging
environment:
### Variables for the container
NODE_ENV: production
TZ: [removed]
### Overridden variables for Docker Compose setup
# The `nightscout` service can use HTTP, because we use `traefik` to serve the HTTPS
# and manage TLS certificates
INSECURE_USE_HTTP: 'true'
# For all other settings, please refer to the Environment section of the README
### Required variables
# MONGO_CONNECTION - The connection string for your Mongo database.
# Something like mongodb://sally:sallypass@ds099999.mongolab.com:99999/nightscout
# The default connects to the `mongo` included in this docker-compose file.
# If you change it, you probably also want to comment out the entire `mongo` service block
# and `depends_on` block above.
MONGO_CONNECTION: mongodb://mongo:27017/nightscout
# API_SECRET - A secret passphrase that must be at least 12 characters long.
API_SECRET: [removed]
### Features
# ENABLE - Used to enable optional features, expects a space delimited list, such as: careportal rawbg iob
# See https://github.com/nightscout/cgm-remote-monitor#plugins for details
ENABLE: careportal rawbg iob
# AUTH_DEFAULT_ROLES (readable) - possible values readable, denied, or any valid role name.
# When readable, anyone can view Nightscout without a token. Setting it to denied will require
# a token from every visit, using status-only will enable api-secret based login.
AUTH_DEFAULT_ROLES: denied
# For all other settings, please refer to the Environment section of the README
# https://github.com/nightscout/cgm-remote-monitor#environment
traefik:
image: traefik:latest
container_name: 'traefik'
command:
- '--providers.docker=true'
- '--providers.docker.exposedbydefault=false'
- '--entrypoints.web.address=:80'
- '--entrypoints.web.http.redirections.entrypoint.to=websecure'
- '--entrypoints.websecure.address=:443'
- "--certificatesresolvers.le.acme.httpchallenge=true"
- "--certificatesresolvers.le.acme.httpchallenge.entrypoint=web"
- '--certificatesresolvers.le.acme.storage=/letsencrypt/acme.json'
# Change the below to match your email address
- '--certificatesresolvers.le.acme.email=[removed]'
ports:
- '443:443'
- '80:80'
volumes:
- './letsencrypt:/letsencrypt'
- '/var/run/docker.sock:/var/run/docker.sock:ro'
logging: *default-logging
How do I connect to the container without traefik (from my local network)?
When I remove all the traefic references and then run docker ps I get
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES [removed] nightscout/cgm-remote-monitor:latest "docker-entrypoint.s…" 6 seconds ago Up 5 seconds 1337/tcp nightscout [removed] mongo:4.4 "docker-entrypoint.s…" 37 hours ago Up 5 seconds 27017/tcp docker-mongo-1But I can’t reach it under dockerIP:1337.
With Immich it had 0.0.0.0:port as its IP and I was able to reach it that way.
You need to add a ports section to your compose file like
ports: - "1337:1337"- the container exposes 1337 internally but you haven’t mapped it to the host so it’s not accessible from outside the container.Your ports are not mapped so the host system doesn’t know about them. You only have them exposed, which is for docker communication.
Map your ports and then you’ll be able to access them by host-ip:mapped-port.
Then you can use nginx to proxy to that.