Testing Concourse + Traefik for a text/event-stream log reading problem

README.md

For debugging traefik/traefik#2576

Includes 2 docker-compose files: one outdated (Concourse 3.9.0, Traefik 1.5.4), the other updated (Concourse 3.14.0, Traefik 1.6.4). Both appear to work fine and not exhibit the "text/event-stream" network request problem where logs can't be displayed.

# Copy files into a directory.
# For this demo, we'll assume `contraef`.
# This directory name affects the access URL because docker-compose creates
# the stack with this name. You can change it, but watch for reoccurrences.
mkdir contraef
cd contraef

# Copy files from gist into directory:
#   docker-compose-updated.yml
#   docker-compose-outdated.yml
#   pipeline.yml
#   traefik.toml

# Bring stack online: choose either -outdated or -updated
docker-compose -f docker-compose-updated.yml up -d
# docker-compose -f docker-compose-outdated.yml up -d

# Ensure this prints out the Concourse landing page HTML
# NOTE THE DIRECTORY NAME HERE (contraef)
curl --header 'Host: concourse.contraef.docker.localhost' 'http://localhost:80/'

# Set local target.
# This target will NOT use Traefik for communication.
fly --target local login --concourse-url http://127.0.0.1:8090

# Ensure fly CLI has right version
fly -t local sync

# Check to see if worker is active
fly -t local workers

# Load new pipeline
fly -t local set-pipeline -p test -c pipeline.yml

# Activate pipe
fly -t local unpause-pipeline -p test

# Run dummy job
fly -t local trigger-job -j test/test-event-stream

# Visit in browser, log in:
chrome http://concourse.contraef.docker.localhost/

docker-compose-outdated.yml

version: '3'

services:
  concourse-db:
    image: postgres
    environment:
    - POSTGRES_DB=concourse
    - POSTGRES_PASSWORD=concourse_pass
    - POSTGRES_USER=concourse_user
    - PGDATA=/database

  concourse:
    image: concourse/concourse:3.9.0
    command: web
    privileged: true
    depends_on: [concourse-db]
    ports: ["8090:8080"]
    environment:
    - CONCOURSE_POSTGRES_HOST=concourse-db
    - CONCOURSE_POSTGRES_USER=concourse_user
    - CONCOURSE_POSTGRES_PASSWORD=concourse_pass
    - CONCOURSE_POSTGRES_DATABASE=concourse
    - CONCOURSE_EXTERNAL_URL
    - CONCOURSE_BASIC_AUTH_USERNAME
    - CONCOURSE_BASIC_AUTH_PASSWORD
    - CONCOURSE_NO_REALLY_I_DONT_WANT_ANY_AUTH=true
    - CONCOURSE_WORKER_GARDEN_NETWORK
    volumes:
    - ./concourse-keys/keys/web:/concourse-keys
    labels:
      traefik.enable: 'true'
      traefik.port: '8080'

  concourse-worker:
    privileged: true
    image: eugenmayer/concourse-worker-solid:3.9.0
    environment:
      CONCOURSE_TSA_HOST: concourse
      CONCOURSE_GARDEN_DNS_SERVER: 8.8.8.8
    stdin_open: true
    tty: true
    links:
    - concourse:concourse
    volumes:
    - ./concourse-keys/keys/worker:/concourse-keys

  concourse-keygen:
    image: emcniece/concourse-keygen
    volumes:
    - ./concourse-keys:/concourse-keys
    command:
    - tail
    - -f
    - /dev/null

  traefik:
    image: traefik:1.5.4
    volumes:
    - ./traefik.toml:/etc/traefik/traefik.toml
    - /var/run/docker.sock:/var/run/docker.sock
    ports:
    - 8000:8000/tcp
    - 80:80/tcp
    - 443:443/tcp

docker-compose-updated.yml

version: '3'

services:
  concourse-db:
    image: postgres
    environment:
    - POSTGRES_DB=concourse
    - POSTGRES_PASSWORD=concourse_pass
    - POSTGRES_USER=concourse_user
    - PGDATA=/database

  concourse:
    image: concourse/concourse:3.14.0
    command: quickstart
    privileged: true
    depends_on: [concourse-db]
    ports: ["8090:8080"]
    environment:
    - CONCOURSE_POSTGRES_HOST=concourse-db
    - CONCOURSE_POSTGRES_USER=concourse_user
    - CONCOURSE_POSTGRES_PASSWORD=concourse_pass
    - CONCOURSE_POSTGRES_DATABASE=concourse
    - CONCOURSE_EXTERNAL_URL
    - CONCOURSE_BASIC_AUTH_USERNAME
    - CONCOURSE_BASIC_AUTH_PASSWORD
    - CONCOURSE_NO_REALLY_I_DONT_WANT_ANY_AUTH=true
    - CONCOURSE_WORKER_GARDEN_NETWORK
    labels:
      traefik.enable: 'true'
      traefik.port: '8080'

  traefik:
    image: traefik:1.6.4
    volumes:
    - ./traefik.toml:/etc/traefik/traefik.toml
    - /var/run/docker.sock:/var/run/docker.sock
    ports:
    - 8000:8000/tcp
    - 80:80/tcp
    - 443:443/tcp

pipeline.yml

---

jobs:

- name: test-event-stream
  plan:
  - task: test
    config:
      platform: linux
      image_resource:
        type: docker-image
        source: {repository: busybox}
      run:
        path: sh
        args:
          - -exc
          - |
            counter=0

            while [ $counter -lt 10 ]; do
              echo $((counter++))
              sleep 2
            done

traefik.toml

################################################################
# Global configuration
################################################################

debug = true
logLevel = "DEBUG"

################################################################
# Entrypoints configuration
################################################################

[entryPoints]
    [entryPoints.http]
    address = ":80"

    [entryPoints.traefik]
    address = ":8000"

################################################################
# Traefik logs configuration
################################################################

[traefikLog]

################################################################
# Access logs configuration
################################################################

[accessLog]

################################################################
# API and dashboard configuration
################################################################

[api]
  entryPoint = "traefik"
  dashboard = true

################################################################
# Ping configuration
################################################################

[ping]

################################################################
# Docker configuration backend
################################################################

[docker]
  domain = "docker.localhost"