✨ Maintenance: disable Traefik sticky connection and Socket.IO long polling 🚨 (ITISFoundation#3686)

Author: sanderegg

services/docker-compose.local.yml

@@ -69,7 +69,6 @@ services:
       - "3001:3000"
     deploy:
       labels:
-        - traefik.http.services.${SWARM_STACK_NAME}_webserver.loadbalancer.sticky.cookie.secure=false
         - traefik.http.routers.${SWARM_STACK_NAME}_webserver_local.service=${SWARM_STACK_NAME}_webserver
         - traefik.http.routers.${SWARM_STACK_NAME}_webserver_local.entrypoints=http
         - traefik.http.routers.${SWARM_STACK_NAME}_webserver_local.rule=hostregexp(`{host:.+}`) && PathPrefix(`/dev/`)

services/docker-compose.yml

@@ -251,10 +251,6 @@ services:
         - traefik.http.services.${SWARM_STACK_NAME}_webserver.loadbalancer.healthcheck.path=/v0/
         - traefik.http.services.${SWARM_STACK_NAME}_webserver.loadbalancer.healthcheck.interval=2000ms
         - traefik.http.services.${SWARM_STACK_NAME}_webserver.loadbalancer.healthcheck.timeout=1000ms
-        - traefik.http.services.${SWARM_STACK_NAME}_webserver.loadbalancer.sticky.cookie=true
-        - traefik.http.services.${SWARM_STACK_NAME}_webserver.loadbalancer.sticky.cookie.samesite=lax
-        - traefik.http.services.${SWARM_STACK_NAME}_webserver.loadbalancer.sticky.cookie.httponly=true
-        - traefik.http.services.${SWARM_STACK_NAME}_webserver.loadbalancer.sticky.cookie.secure=true
         - traefik.http.middlewares.${SWARM_STACK_NAME}_webserver_retry.retry.attempts=2
         - traefik.http.routers.${SWARM_STACK_NAME}_webserver.service=${SWARM_STACK_NAME}_webserver
         - traefik.http.routers.${SWARM_STACK_NAME}_webserver.rule=hostregexp(`{host:.+}`) && (Path(`/`, `/v0`,`/socket.io/`,`/static-frontend-data.json`, `/study/{study_uuid:\b[0-9a-f]{8}\b-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-\b[0-9a-f]{12}\b}`, `/view`, `/#/view`, `/#/error`) ||  PathPrefix(`/v0/`))

services/static-webserver/client/source/class/osparc/wrapper/WebSocket.js

@@ -171,7 +171,8 @@ qx.Class.define("osparc.wrapper.WebSocket", {
           "reconnectionDelay": this.getReconnectionDelay(),
           "reconnectionAttempts": this.getMaxReconnectionAttemps(),
           "forceNew": true,
-          "query": "client_session_id="+osparc.utils.Utils.getClientSessionID()
+          "query": "client_session_id="+osparc.utils.Utils.getClientSessionID(),
+          "transports": ["websocket"]
         });
         this.setSocket(mySocket);