404 on redirect to another server

trustno1foxm · April 23, 2023, 2:17pm

hello,

local "redirects" are working fine, but not redirects to another server on the same subnet. what I am doing wrong? By using npm everything worked fine... there must be a silly issue... can someone help me?

thank you!

so long

edit: I am using a dynamic config and working with labels.

bluepuma77 · April 23, 2023, 5:10pm

„My car doesn’t start, can you tell me why? It has four wheels and is red.“

What does does not work? What do you do, what happens, any messages? What has npm to do with it?

Share your Traefik static and dynamic configuration, and docker-compose.yml if used.

Check your browsers developer tools network tab to see the responses your browser receives. Check Traefik debug log and the Traefik dashboard.

trustno1foxm · April 24, 2023, 11:30am

No it's not red Therefore everything worked fine on the same machine, it must be a weird problem? Since seperating the hosts it doesn't work. npm? because there it still works, also after the seperation, so it's not a network or firewall related problem.

traefic.yml

# Statische Traefik-Konfigurationsdatei
# https://doc.traefik.io/traefik/getting-started/configuration-overview/#the-static-configuration
# https://doc.traefik.io/traefik/reference/static-configuration/cli/

api:
  dashboard: true                             # Aktivieren des Dashboard
#  insecure: true
# Certificate Resolver
# Diese sind für den Abruf von Zertifikaten von einem ACME-Server zuständig
# https://doc.traefik.io/traefik/https/acme/#certificate-resolvers
certificatesResolvers:
  le:
    acme:
      email: xxx
      storage: "./acme_letsencrypt.json"
      dnsChallenge:
        provider: xxx
        delayBeforeCheck: 5 
        resolvers:
          - "xxx:53"

# EntryPoints
# EntryPoints sind die Netzwerk-Eingangspunkte in Traefik. Sie definieren den Port, der die Pakete empfängt.
# https://doc.traefik.io/traefik/routing/entrypoints/
entryPoints:
  http:
    address: ":80"                            # Erstellen des Einstiegspunkt für HTTP (Port 80)
    http:
      redirections:                           # Weiterleitung von HTTP auf HTTPS (Port 80 zu Port 443). 
        entryPoint:
          to: "https"                         # Das Ziel
          scheme: "https"                     # Umleitungszielschema
  https:
    address: ":443"                           # Erstellen des Einstiegspunkt für HTTPS (Port 443)

global:
  checknewversion: false                       # In regelmäßigen Abständen prüfen, ob eine neue Version veröffentlicht wurde.
  sendanonymoususage: false                   # Regelmäßige Übermittlung anonymer Nutzungsstatistiken.

providers:
  docker:
    endpoint: "unix:///var/run/docker.sock"   # Den UNIX Docker socket beobachten
    exposedByDefault: false                   # Nur Container ausstellen, die explizit aktiviert sind (mit dem Label traefik.enabled
    network: "dmz-bridge"                          # Standardnetzwerk, das für Verbindungen zu allen Containern verwendet wird.
  file:
    filename: "./dynamic_conf.yml"            # Link zur dynamischen Konfiguration
    watch: true                               # Achten auf Änderungen
  providersThrottleDuration: 10               # Frequenz in welchen Abständen die Konfiguration nachgeladen wird

log:
   level: ERROR 
   filePath: "/traefik.log"
accessLog:
   filePath: "/access.log"

dynamic_conf.yml:

# TLS
# Hier werden alle notwendigen Einstellungen für das Zertifikat getroffen.
# In Kombination mit den Einstellungen unter http.middlewares.default-security-headers bekommen  wir ein A+ Zertifikat.
tls:
  options:
    default:
      minVersion: VersionTLS12
      cipherSuites:
        - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
        - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
        - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305
        - TLS_AES_128_GCM_SHA256
        - TLS_AES_256_GCM_SHA384
        - TLS_CHACHA20_POLY1305_SHA256
      curvePreferences:
        - CurveP521
        - CurveP384
      sniStrict: true

# Middlewares
# Optionale Optimierungen, die bei jeder Anfrage vorgenommen werden sollen bevor diese an den Zielcontainer geleitet wird.
http:
  middlewares:
    traefikAuth:
      basicAuth:
        users:
          - "admin:xxx" 
    local-ipWhiteList:
      ipWhiteList:
        sourceRange:
          - "192.168.0.0/16"

# Empfohlene Standard-Middleware für die meisten Dienste
    # Hinzufügbar via "traefik.http.routers.definierteRoute.middlewares=default@file"
    # Equivalent mit "traefik.http.routers.definierteRoute.middlewares=default-security-headers@file,gzip@file"
    # Die Liste kann hier auch beliebig erweitert werden
    default:
      chain:
        middlewares:
          - default-security-headers
          - gzip

    # Kompatibilität zu alten Anleitungen. Damit kann auch wieder "traefik.http.routers.definierteRoute.middlewares=secHeader@file" 
    secHeaders:
      chain:
        middlewares:
          - default-security-headers
          - gzip

    # Standard Header
    default-security-headers:
      headers:
        browserXssFilter: true
        contentTypeNosniff: true
        forceSTSHeader: true
        frameDeny: true
#       Deprecated
#       sslRedirect: true
        #HSTS Configuration
        stsIncludeSubdomains: true
        stsPreload: true
        stsSeconds: 31536000
        customFrameOptionsValue: "SAMEORIGIN"
    # Gzip Kompression
    gzip:
      compress: {}

traefik (itself) stack (portainer):

services:
  traefik:
    image: traefik:latest
    container_name: traefik
    labels:
      - traefik.enable=true
      - traefik.http.routers.traefik.entrypoints=https
      - traefik.http.services.traefik.loadbalancer.server.port=1337
      - traefik.http.routers.traefik.rule=Host(`xxx`)
      - traefik.http.routers.traefik.middlewares=traefikAuth@file,default@file
      - traefik.http.routers.traefik.tls=true
      - traefik.http.routers.traefik.tls.certresolver=le
      - traefik.http.routers.traefik.tls.domains[0].main=xxx
      - traefik.http.routers.traefik.service=api@internal
      - traefik.http.services.traefik.loadbalancer.sticky.cookie.httpOnly=true
      - traefik.http.services.traefik.loadbalancer.sticky.cookie.secure=true
      - traefik.docker.network=dmz-bridge
    ports:
      - 80:80
      - 443:443
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /etc/localtime:/etc/localtime:ro
      - /opt/container/traefik/data/traefik.yml:/traefik.yml:ro
      - /opt/container/traefik/data/acme_letsencrypt.json:/acme_letsencrypt.json
      - /opt/container/traefik/data/dynamic_conf.yml:/dynamic_conf.yml
      - /opt/container/traefik/data/traefik.log:/traefik.log
    security_opt:
      - no-new-privileges:true
    restart: unless-stopped
    networks:
      dmz-bridge:
        ipv4_address: xxx

networks:
  dmz-bridge:
    external: true

nextcloud stack (portainer) -> on different host and with 404 error

services:
 nextcloud:
  image: nextcloud
  container_name: nextcloud
  restart: always
  labels:
   # Aktiviert Traefik für diesen Container
   - traefik.enable=true
   #Die Weiterleitung von HTTP zu HTTPS wurde bereits in der traefik.yml festgelegt
   - traefik.http.routers.nextcloud.entrypoints=https
   - traefik.http.routers.nextcloud.rule=Host(`xxx`)
   - traefik.http.routers.nextcloud.tls=true
   - traefik.http.routers.nextcloud.tls.certresolver=le
   - traefik.http.routers.nextcloud.service=nextcloud
   - traefik.http.services.nextcloud.loadbalancer.server.port=80
   - traefik.http.routers.nextcloud.middlewares=nextcloud-dav,local-ipWhiteList@file,default@file
   - traefik.http.middlewares.nextcloud-dav.replacepathregex.regex=^/.well-known/ca(l|rd)dav
   - traefik.http.middlewares.nextcloud-dav.replacepathregex.replacement=/remote.php/dav/
   - traefik.docker.network=dmz-bridge
  ports:
   - 8080:80
  volumes:

  environment:

  networks:
    dmz-bridge:
      ipv4_address: xxx
      
 networks:
  dmz-bridge:
    external: true

thx!

so long

bluepuma77 · April 24, 2023, 4:11pm

How should Traefik discover the container on the other node? You need Docker Swarm to do that and use provider.docker with swarmMode=true. (Docs)

Or you can set the target manually with a dynamic config with loadbalancer.servers.url, but that only works with provider.file, not with labels. (Docs example)

trustno1foxm · April 25, 2023, 11:02am

and why does it work with npm? Maybe there is a misunderstanding, who can I publish services from another host with traefik? what if that service is not set up as a container?

bluepuma77 · April 25, 2023, 2:59pm

You can set up targets manually with loadbalancer.servers.url in a dynamic config file. (Docs example)

trustno1foxm · April 25, 2023, 4:19pm

thx, but still doesn't work

bluepuma77 · April 26, 2023, 5:52am

What does not work? Have you tried reaching your target from within the Docker container? Share your updated configuration.

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404 on redirect to another server

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