# Can I please ask advice on setting up my first reverse proxy on my dev machine for testing?

**URL:** <https://community.traefik.io/t/can-i-please-ask-advice-on-setting-up-my-first-reverse-proxy-on-my-dev-machine-for-testing/1157>\
**Category:** Traefik v1\
**Tags:** docker\
**Created:** [August 8, 2019, 7:49am UTC](https://community.traefik.io/t/can-i-please-ask-advice-on-setting-up-my-first-reverse-proxy-on-my-dev-machine-for-testing/1157 "2019-08-08T07:49:44Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![robster](https://avatars.discourse-cdn.com/v4/letter/r/cdc98d/32.png) [@robster](https://community.traefik.io/u/robster)\
**Post date:** [August 8, 2019, 7:49am UTC](https://community.traefik.io/t/can-i-please-ask-advice-on-setting-up-my-first-reverse-proxy-on-my-dev-machine-for-testing/1157/1 "2019-08-08T07:49:44Z")

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Hi all,

I'm new to the concepts here but getting my head around it but am stuck so thought I'd ask here.

**My setup**

- a flask app running on port 8000
- traefik running
- a network running

This is done via docker-compose. I'm on ubuntu 18.04.

**Before Traefik:**

The flask app runs well by itself if I have no proxy setup at all. I can head to localhost:8000 and it works a treat. That's great.

**What I expect:**

I want to test a reverse proxy. So I want to head to localhost:5000 and have Traefik grab the data from 8000 and send it to the browser. I assume that's how this is meant to work? I ask this as I'm really fighting what I thought would be quite simple. In my mind, all traffic going through Traefik would show to the end user as being on port 5000 (so that all backend activity/addresses are hidden).

**What's happening:**  
I am heading to localhost:5000 and I get a 404 error. Not only that, the image that's meant to go with the 404 error is showing its url as `http://localhost:8000/static/images/404.png` Isn't the port 8000 never meant to show to the end user?

**My setup:**

`docker-compose.yml`

```auto

    version: '3'

    services:
      flask:
        # build the Dockerfile
        build: .
        image: logrr:1.0.0
        container_name: flask
        restart: always
        command: >
          gunicorn -b 0.0.0.0:8000
            --access-logfile -
            --reload
            "logrr.app:create_app()"
        volumes:
          - '.:/logrr'
        networks:
        - proxy
        ports:
          - "8000"
        labels:
          # This will mark this docker service as a backend with name flask”
          # It will create a rule in Traefik that all traffic coming from localhost
          # should be redirected to this docker service to port 8000.
          - "traefik.enable=true"
          - "traefik.backend=flask"
          - "traefik.frontend.rule=Host:localhost"
          - "traefik.port=8000"
          - "traefik.docker.network=proxy"

      traefik:
        image: traefik # The official Traefik docker image

        command: --api --docker --loglevel=debug # Enables the web UI and tells Traefik to listen to docker

        ports:
          - "443:443" # The encrypted port
          - "80:80" # The HTTP port
          - "8080:8080" # The Web UI (enabled by --api)
          - "8000:8000" # the flask port. Will this work?
          - "5000:5000" # the traefik frontend port. Will this work?

        volumes:
          - /var/run/docker.sock:/var/run/docker.sock # Traefik auto-detects containers on the network by reading from the Docker socket
          - ./traefik/traefik.toml:/etc/traefik/traefik.toml # this is the Traefik configuration file
          - ./ssl:/ssl # this directory will store self-signed certificates for enabling TLS (https) connections to Traefik

        labels:
          # accept connections to entry point 'https' & 'http' (these are defined in traefik.toml)
          - traefik.frontend.entryPoints=http localhost::5000
          # if the connection matches this front end rule, route the connection to this container
          # in this case, the connection must have a host name of 'traefik.docker.localhost'
          - traefik.frontend.rule=Host:traefik.docker.localhost
          # route frontend rule matches to port 8080 on this container
          - traefik.port=8080
          # enable Traefik to route to this container, this isn't always needed (I'll explain more when going over treafik.toml)
          - traefik.enable=true

        # add this container to the 'proxy' network
        networks:
          proxy:

        container_name: 'traefik' # set the container name, it defaults to the service name if not defined

        expose:
          - 8080 # Exposed ports are only accessible to other containers on the same Docker network like so -> http://CONTAINER:PORT

    networks:
      proxy:

```

`Here is my traefik.toml`

```
debug = false

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

[entryPoints]
  [entryPoints.http]
  address = ":5000"

[retry]

```

Can anyone see what I'm doing wrong? The Traefik dashboard shows front end and back end for the flask app. It's just not behaving like I am expecting. Right now I don't want encryption or anything, I just want it to work in testing on my local machine.

Any help would be massively appreciated. I've spent days, had a few "ahah!" moments but really am at a wall now.

---

<div class="post-metadata">

**Author:** ![robster](https://avatars.discourse-cdn.com/v4/letter/r/cdc98d/32.png) [@robster](https://community.traefik.io/u/robster)\
**Post date:** [August 22, 2019, 1:52am UTC](https://community.traefik.io/t/can-i-please-ask-advice-on-setting-up-my-first-reverse-proxy-on-my-dev-machine-for-testing/1157/2 "2019-08-22T01:52:53Z")

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I hope nobody minds the bump. I'm still completely stuck with the same issue 2 weeks on now. I'm feeling pretty low on this so hoping someone can spot an obvious mistake?

Thanks a tonne...