Trouble with setup

[alainschaerer]

Im currently trying to deploy this repo right here with the following dockerfile: swisstackle/instagram_debater

FROM python:3.12.12 AS builder

ENV PYTHONUNBUFFERED=1 
PYTHONDONTWRITEBYTECODE=1
WORKDIR /app

RUN python -m venv .venv
COPY requirements.txt ./
RUN .venv/bin/pip install -r requirements.txt
FROM python:3.12.12-slim
WORKDIR /app
COPY --from=builder /app/.venv .venv/
COPY . .
CMD \[“sh”,“-c”,“if \[ "$PROCESS" = "dashboard" \]; then ./.venv/bin/uvicorn dashboard:app --host 0.0.0.0 --port 5000 --log-level info; elif \[ "$PROCESS" = "worker" \]; then ./.venv/bin/python main.py; else ./.venv/bin/python run_webhook.py; fi”\]

But for some reason the dashboard (python web server streaming a react site) does not load when I access the site.

One thing that I noticed was that the fly.toml does not look like it’s exposing anything meaningful:

app = "instagram-debater"
primary_region = "iad"

[http_service]
auto_start_machines = true
auto_stop_machines = true
force_https = true
internal_port = 8_080
min_machines_running = 0
processes = [ "app" ]

[[vm]]
cpu_kind = "shared"
cpus = 1
memory = "1gb"
memory_mb = 1_024

For example, how can I tie the dashboard python web server to an http service in there? How can I make sure that the other web server’s are exposed too?

Or is fly.io only suited for static sites without web server?

[mayailurus]

@alainschaerer

./.venv/bin/uvicorn dashboard:app --host 0.0.0.0 --port 5000

Hi… I don’t know the Python ecosystem that well, but it looks like you’re listening on port 5000, whereas internal_port is set to 8080.

@alainschaerer

does not look like it’s exposing anything meaningful:

[http_service] implicitly serves ports 80 and 443 to the outside world, so you should be ok there.

Also, it would probably be wise to move the long sh -c argument into a separate file, since it looks like you might have some glitches with quotation marks. (Or perhaps that’s the forum software mangling afterward, .)

Hope this helps!

[alainschaerer]

Is it possible to run two different webservers on one machine (One for port 8080 and the other one for port 8000)? Port 8000 doesn’t stream html, but is just a rest API.

[mayailurus]

It is possible, but it’s not the platform preference (so to speak). There’s some background on this in the following official doc:

https://fly.io/docs/app-guides/multiple-processes/

The above doesn’t emphasize it, but you would need to also add a [[services]] block to fly.toml, one with internal_port = 8000 and external ports disjoint from 80 and 443.

(E.g., choosing 8443 as the external HTTPS port for that second service.)

(Try to match the auto-start/auto-stop settings in both blocks, incidentally; it’s not clear what happens when they differ, .)

---

Aside: If the dashboard is purely for personal use, then you might want to consider changing it to .internal-only. That gives (much) better security, and you can use flyctl proxy to tunnel through when you need access.

(You would need to listen on IPv6 for that, though.)