Deployment with docker

Dash Python
1

Hello everyone,
I have a simple one pager dashboard which has been done with Dash plotly.
everything is working fine on localhost.
it seems there are no intuitive resources for deploying dash app via Docker.
the only useful link that I have seen in the forum is [this ] (Deployment on Docker) link which is outdated and uses dash 1.

any helps is much appreciated.
thanks

2

Hi,

Which error are you having?

1 Like
3

I’m no expert in this but this is how i have mine setup in docker.

Dockerfile

FROM ubuntu:latest 

WORKDIR /app
COPY . /app

ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHON UNBUFFERED 1

RUN apt-get update \
    && apt-get upgrade -y python3-pip \
    && apt-get install -y python3.8 wget curl \
    && pip3 install -r requirements.txt \
    && apt autoremove -y

EXPOSE 8050

ENTRYPOINT [ "gunicorn", "--config", "gunicorn_config.py", "index:server" ]

gunicorn_config.py

bind = "0.0.0.0:8050"
workers = 3
timeout = 120

app.py

from dash import dash
import dash_bootstrap_components as dbc

app = dash.Dash(__name__, 
    external_stylesheets=[dbc.themes.BOOTSTRAP], 
    suppress_callback_exceptions=True)

My index.py file has a server = app.server reference in it.

Hope this helps!

2 Likes
4

actually I got the error of Halt gunicorn.
But with different methods I got different errors.

6

@shshin It’s a flat structure

frontend/
     Dockerfile
     gunicorn_config.py
     index.py
     app.py
2 Likes
7

@tphil10 thank you so much.
I will try it out and update you about the results.

8 
   ERROR: Command errored out with exit status 1:
     command: /usr/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-2enikstv/Jinja/setup.py'"'"'; __file__='"'"'/tmp/pip-install-2enikstv/Jinja/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-2enikstv/Jinja/pip-egg-info
         cwd: /tmp/pip-install-2enikstv/Jinja/
    Complete output (6 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-2enikstv/Jinja/setup.py", line 28
        except DistutilsError, e:
                             ^
    SyntaxError: invalid syntax
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

get error when installing the jinja
ps. I am want to deploy on Raspberry pi.

9

@shshin I dont know anything about jinja, i’d prob start here.