How to connect to websocket in 1.7

Traefik Traefik v1
1

Hi,
i have a Koa.js server running inside a docker image.
The server provides the endpoint /graphql, on which both http and ws connections can be established. This setup works on localhost, but once i deploy, only the http request gets a response.
I dont know how to configure traefik for ws.

I have here, in order, the docker-compose config for the database(api) image, the traefik instance, and the treafik.toml file.

  database:
    image: "registry.finnfrotscher.com/x/api.database"
    hostname: database
    ports:
      - "9002:80"
    restart: unless-stopped
    environment:
      NODE_ENV: production
    networks:
      - localhost
    labels:
      - traefik.port=80
      - traefik.enable=true
      - traefik.backend=database
      - traefik.docker.network=traefik
      - traefik.frontend.entryPoints=http,https
      - traefik.frontend.redirect.entryPoint=https
      - traefik.frontend.rule=Host:db.x.com

  traefik:
    image: traefik:maroilles
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
    networks:
      - localhost
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - ./traefik.toml:/traefik.toml
      - ./acme.json:/acme.json
    labels:
      - traefik.port=80
      - traefik.backend=traefik
      - traefik.frontend.rule=Host:traefik.x.com
      - traefik.frontend.entryPoints=http,https


logLevel = "DEBUG"
defaultEntryPoints = ["http", "https"]

[docker]
endpoint = "unix:///var/run/docker.sock"
domain = "x.com"
exposedByDefault = false
watch = true

[entryPoints]
  [entryPoints.http]
  address = ":80"
  [entryPoints.http.redirect]
    entryPoint = "https"
  [entryPoints.https]
  address = ":443"
    [entryPoints.https.tls]

[acme]
email = "finn@x.com"
storage = "/acme.json"
onHostRule = true
entryPoint = "https"
acmelogging=true
[acme.httpChallenge]
  entryPoint = "http"

[[acme.domains]]
  main = "x.com"
  sans = ["www.x.com", "app.x.com", "db.x.com", "admin.db.x.com"]
4

Hello,

websocket is just simple HTTP, so you don't need a specific configuration.

5

The response header received by firefox:

HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: RoEPtLCdXyctgN+TUFI0sfC+R1E=
Sec-WebSocket-Protocol: graphql-ws

And my gql playground displays:

{
  "error": {
    "message": "Expected {...} to be a GraphQL schema."
  }
}

The protocol is being switched. could it be the [entryPoints.http.redirect] i specified in traefik.toml?