Disable TLS 1.0 and 1.1 for docker

Traefik Traefik v2 (latest)
1

I have been doing some research on how to disable tls v1.0 and v1.1 on Traefik. I found the configuration in the dynamic file, but how would I translate this to docker compose file? Or even better, what command would I run to disable it globally?

I searched the docker reference file, and could not find the option:

2

From the documentation it looks only to be in the file, kubenetes-crd and KV providers.

3

The dynamic file, which doesn't really help me much I don't believe as the docker labels act as the dynamic labels.

4

Not for TLS options.

If you are not setting default TLS options then you can use the - "traefik.tcp.routers.tcprouter1.tls.options=foobar" to specify which options to use. But no, they cannot actually be defined in docker labels.

5

So where do I define them? I see you can define them in a dynamic config file. I have the following defined, but I get an error stating: unknown TLS options: modern-2020@docker

-- Traefik docker-compose.yml

services:
  traefik:
    container_name: traefik
    image: 'traefik:v2.2.11'
    volumes:
      - '/var/run/docker.sock:/var/run/docker.sock'
      - '$PWD/acme.json:/acme.json'
      - '$PWD/traefik_tls.yml:/configs/traefik_tls.yml'
      - 'trafficlog:/var/log'

    ports:
      - '80:80'
      - '443:443'

    networks:
      - FrontEnd

    command:
      - "--api.dashboard=true"

      - "--accesslog=true"
      - "--accesslog.filepath=/var/log/access.log"
      - "--accesslog.bufferingsize=10"

      - "--providers.docker=true"
      - "--providers.docker.network=FrontEnd"
      - "--providers.docker.exposedbydefault=false"

      - "--providers.file.directory=/configs/"

      - "--entrypoints.web.address=:80"
      - "--entrypoints.websecure.address=:443"

      - "--certificatesresolvers.letsencrypt.acme.tlschallenge=true"
      - "--certificatesresolvers.letsencrypt.acme.email=none@none.com"
      - "--certificatesresolvers.letsencrypt.acme.storage=acme.json"

      - "--serverstransport.insecureskipverify=true"

-- traefik_tls.yml

tls:
  options:
    default:
      minVersion: VersionTLS12
      cipherSuites:
        - TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
        - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
        - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
        - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
        - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
        - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305
    modern-2020:
      minVersion: VersionTLS13

-- containers docker-compose.yml

    labels:
      - "traefik.enable=true"

      - "traefik.http.routers.x-web.rule=Host(`beta.x.net`)"
      - "traefik.http.routers.x-web.entrypoints=web"
      - "traefik.http.routers.x-web.middlewares=https-redirect"

      - "traefik.http.routers.x-tls.rule=Host(`beta.x.net`)"
      - "traefik.http.routers.x-tls.entrypoints=websecure"
      - "traefik.http.routers.x-tls.tls.certresolver=letsencrypt"
      - "traefik.http.routers.x-tls.tls.options=modern-2020"
      - "traefik.http.routers.x-tls.middlewares=outside-whitelist"
6

Try modern-2020@file

It's been a little while since I tried this.

7

That worked! Thanks.

8

Just wanted to link these two topics together as they are related. Posted this question but then found the other:

9

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