Traefik v2 instead of Caddy

[mrwormo]

Hello,

I'm running Traefik v2 on my server to serve a dozen of container without problems. But i'm facing of a "Bad gateway" with the Searxng container.

I've no error in Traefik logs, neither in Searxng logs. And the Traefik's dashboard is happy too.

My docker-compose.yml :

...
  searxng:
    container_name: searxng
    image: searxng/searxng:latest
    hostname: searxng
    restart: always
    ports:
     - "127.0.0.1:9999:8080"
    volumes:
      - /app/searxng:/etc/searxng:rw
    environment:
      - SEARXNG_BASE_URL=https://${SEARXNG_HOSTNAME:-localhost}/
    cap_drop:
      - ALL
    cap_add:
      - CHOWN
      - SETGID
      - SETUID
      - DAC_OVERRIDE
    networks:
      - traefik
...

And my searx.yml is similar to others :

http:
  services:
    searxng:
      loadBalancer:
        servers:
          - url: "http://searxng:9999"

  routers:
    searxng:
      rule: "Host(`domain.tld`)"
      entryPoints:
        - "web"
      middlewares:
        - "redirect-to-https@file"
      service: "noop@internal"
    searxng-secure:
      rule: "Host(`domain.tld`)"
      entryPoints:
        - "websecure"
      middlewares:
        - "hsts@file"
        - "security@file"
        - "compression@file"
      service: "searxng@file"
      tls:
        certResolver: letsencrypt-ecdsa
        options: mintls13

Is someone manages to operate Searxng with Traefik v2 ?

[mrpaulblack]

for reference check out my traefik config file for my searxng fork: https://github.com/paulgoio/searxng/blob/main/docker-compose.yml

[mrwormo]

for reference check out my traefik config file for my searxng fork: https://github.com/paulgoio/searxng/blob/main/docker-compose.yml

Thx for your reply. Your docker-compose put me on the trail : i don't need to expose any ports.

Here is my finale docker-compose.yml :

 searxng:
    container_name: searxng
    image: searxng/searxng:latest
    hostname: searxng
    restart: always
    volumes:
      - /app/searxng:/etc/searxng:rw
    environment:
      - SEARXNG_BASE_URL=https://${SEARXNG_HOSTNAME:-localhost}/
      - TZ=Europe/Paris
    cap_drop:
      - ALL
    cap_add:
      - CHOWN
      - SETGID
      - SETUID
      - DAC_OVERRIDE
    networks:
      - traefik

And the searx.yml

http:
  services:
    searxng:
      loadBalancer:
        servers:
          - url: "http://searxng:8080"

  routers:
    searxng:
      rule: "Host(`domain.tld`)"
      entryPoints:
        - "web"
      middlewares:
        - "redirect-to-https@file"
      service: "noop@internal"
    searxng-secure:
      rule: "Host(`domain.tld`)"
      entryPoints:
        - "websecure"
      middlewares:
        - "hsts@file"
        - "security@file"
        - "compression@file"
      service: "searxng@file"
      tls:
        certResolver: letsencrypt-ecdsa
        options: mintls13

Thx again @mrpaulblack :+1:

[GenesisAdam]

@mrwormo Please may I have the content of your middlewares.yml file. I am getting error regarding compression. I am using Traefik V2. Many thanks.

[mrwormo]

@mrwormo Please may I have the content of your middlewares.yml file. I am getting error regarding compression. I am using Traefik V2. Many thanks.

Here is my compression.yml :

http:
  middlewares:
    compression:
      compress:
        excludedContentTypes:
          - "text/event-stream"

Have you tried to comment compression@file ?

[GenesisAdam]

@mrwormo Thank you. It's all running ok now. I use a middlewares-chain.yml file and created a middleware-chain for searx as below using your snippet code:

chain-searx: chain: middlewares: - "middlewares-rate-limit" - "middlewares-secure-headers" - "middlewares-searx-compression" - This is then referenced in the compose file as:

• "traefik.http.routers.searxng.middlewares=chain-searx@file"

[y0nei]

Im going to throw in my configuration, i had big troubles getting this configured right because i just picked up traefik, but managed to get it working well, with an A+ grade I also added a label traefik.enable=true in searxng's docker-compose.yml

I got it working with something like this: searxng.yml

http:
  services:
    searxng:
      loadBalancer:
        servers:
          - url: "http://searxng:8080"

  routers:
    searxng:
      rule: "Host(`amongus.sus`) && Method(`GET`,`POST`,`HEAD`)"
      middlewares:
        - general_security
        - searxng_headers
      service: searxng
      entryPoints:
        - "websecure"
      tls:
        certResolver: production

  middlewares:
    general_security:
      headers:
        stsSeconds: 31536000
        stsIncludeSubdomains: true
        stsPreload: true
        browserXssFilter: true
        contentTypeNosniff: true
        referrerPolicy: "no-referrer"
    searxng_headers:
      headers:
        customResponseHeaders:
          X-Robots-Tag: "noindex, noarchive, nofollow"
          Content-Security-Policy: "upgrade-insecure-requests; default-src 'none'; script-src 'self'; style-src 'self' 'unsafe-inline'; form-action 'self' https://github.com/searxng/searxng/issues/new; font-src 'self'; frame-ancestors 'self'; base-uri 'self'; connect-src 'self' https://overpass-api.de; img-src 'self' data: https://*.tile.openstreetmap.org; frame-src https://www.youtube-nocookie.com https://player.vimeo.com https://www.dailymotion.com https://www.deezer.com https://www.mixcloud.com https://w.soundcloud.com https://embed.spotify.com"
          Permissions-Policy: "accelerometer=(),ambient-light-sensor=(),autoplay=(),camera=(),encrypted-media=(),focus-without-user-activation=(),geolocation=(),gyroscope=(),magnetometer=(),microphone=(),midi=(),payment=(),picture-in-picture=(),speaker=(),sync-xhr=(),usb=(),vr=()"

where certResolver: production points to this in traefik.yml

certificatesResolvers:
  production:
    acme:
      email: [email protected]
      storage: /etc/traefik/certs/acme.json
      caServer: "https://acme-v02.api.letsencrypt.org/directory"
      httpChallenge:
        entryPoint: web

i also have set a default option for minimum tls version in the same traefik.yml file like this:

tls:
# ...
  options:
    default:
      minVersion: VersionTLS12

for HTTP -> HTTPS redirecting i have this in entryPoints in traefik.yml

entryPoints:
  web:
    address: :80
    # (Optional) Redirect to HTTPS
    # ---
    http:
      redirections:
        entryPoint:
          to: websecure
          scheme: https

  websecure:
    address: :443

[return42]

Close since issue has been solved / answered.

[y0nei]

Additional note from me; If you want the best TLS score, add this to your traefik.yml:

tls:
  options:
    default:
      minVersion: VersionTLS12
      cipherSuites:
        - TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
        - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
        - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
        - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
        - TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
        - TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
        - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
        - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256

related issue (#391) on searxng/searx-instances