Vfrdtyky

I'm currently trying to deploy a set of microservices using Docker Swarm Mode. I've set up a traefik container and all my containers like this:

version: "3.4" 

networks:

  backend-network:

    external: true

services:     



  proxy:

    image: traefik

    command: --api --docker --docker.swarmMode --docker.watch

    networks: 

      - backend-network 

    ports: 

      - "80:80"

      - "8090:8080"

    volumes:

      - "/var/run/docker.sock:/var/run/docker.sock"

    deploy: 

      replicas: 1

      restart_policy:

        condition: on-failure

      placement:

        constraints:

          - node.role == manager



  front-end:

    image: *****

    env_file:

      - ./env/.react.env

    networks: [ "backend-network" ]

    ports: 

      - "8080:80"

    deploy: 

      labels:

        - traefik.enable=false

      replicas: 1

      restart_policy: 

        condition: on-failure

      placement:

        constraints:

          - node.role == manager



  users-db:

    image: *****

    networks: ["backend-network"]

    ports: [ "5984:5984" ]

    deploy:

      labels:

        - traefik.enable=false

      replicas: 1

      restart_policy: # restart if something went wrong

        condition: on-failure



  # server that listens HTTP requests

  users:

    image: *****

    env_file: 

      - ./env/.users.env

    # wait until service db is up

    depends_on: [ "users-db" ]

    networks: 

      - backend-network

      # - proxy

    # expose port 80 of host node

    expose:

      - "80"

    deploy:   

      labels:

        - traefik.port=80

        - traefik.docker.network=backend-network

        - traefik.frontend.rule=PathPrefixStrip:/api/auth/

        - traefik.backend.loadbalancer.swarm=true

        - traefik.backend.loadbalancer.stickiness=true

      replicas: 1





  shop:

    image: *******

    env_file: 

      - ./env/.shop.env

    depends_on: [ "users"]

    networks:

      - backend-network

      # - proxy

    expose:

      - "80"

    deploy:

      labels:

        - traefik.port=80

        - traefik.frontend.rule=PathPrefixStrip:/api/shop

        - traefik.docker.network=backend-network

        - traefik.backend.loadbalancer.swarm=true

        - traefik.backend.loadbalancer.stickiness=true

      replicas: 1





  checkout:

    image: *****

    env_file: 

      - ./env/.checkout.env

    depends_on: [ "users", "shop" ]

    networks:

      - backend-network

    expose:

      - "80"

    deploy:

      labels:

        - traefik.port=80

        - traefik.frontend.rule=PathPrefixStrip:/api/checkout

        - traefik.docker.network=backend-network

        - traefik.backend.loadbalancer.swarm=true

        - traefik.backend.loadbalancer.stickiness=true

      replicas: 1





  visualizer:

    image: dockersamples/visualizer:stable

    ports: [ "9000:8080" ]

    volumes:

      - "/var/run/docker.sock:/var/run/docker.sock"

    deploy:

      labels: 

        - traefik.enable=false

      placement:

        constraints:

          - node.role == manager

I hid the image names with ****.

I created two VM's on Azure, I created the Swarm, Traefik discovers my services but when I try to make a request with azure-dns/api/shop for example, it always returns Bad Gateway.

When using docker-compose up in local, it works fine. I did not try a Docker Swarm in local with docker-machine yet. I will soon.

Verify that backend-network is an overlay network.

Then try first without

   - traefik.backend.loadbalancer.swarm=true

   - traefik.backend.loadbalancer.stickiness=true # especially this one

It seems that sticky session is buggy in v1.7 according to issue 3770.