Railway•11mo ago

"Application Failed to Respond" error when using docker to build

My dockerfile works on my local machine but after deploying to Railway, it seems there might be something wrong with the port? I am still really new to production environments and am having trouble configuring my Dockerfile for a Django production environment that utilizes outside packages not compatible with Nixpacks. Here's what I have in my Dockerfile:

FROM python:3.11

# Set working directory
WORKDIR .

# Install dependencies
RUN apt-get update
RUN apt-get install -y texlive-full
RUN rm -rf /var/lib/apt/lists/*

COPY requirements.txt .

RUN pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 8000

CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]

FROM python:3.11

# Set working directory
WORKDIR .

# Install dependencies
RUN apt-get update
RUN apt-get install -y texlive-full
RUN rm -rf /var/lib/apt/lists/*

COPY requirements.txt .

RUN pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 8000

CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]

18 Replies

Percy•11mo ago

Project ID: c81346b6-183a-4331-af52-bc960a6108bf

roseOP•11mo ago

c81346b6-183a-4331-af52-bc960a6108bf

Brody•11mo ago

use this dockerfile instead

FROM python:3.11

ENV PYTHONUNBUFFERED=1
ENV PIP_DISABLE_PIP_VERSION_CHECK=1

# Set working directory
WORKDIR /app

# Install dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends texlive-full && \
    rm -rf /var/lib/apt/lists/*

COPY requirements.txt ./

RUN pip install --no-cache-dir -r requirements.txt

COPY . ./

CMD gunicorn mysite.wsgi

FROM python:3.11

ENV PYTHONUNBUFFERED=1
ENV PIP_DISABLE_PIP_VERSION_CHECK=1

# Set working directory
WORKDIR /app

# Install dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends texlive-full && \
    rm -rf /var/lib/apt/lists/*

COPY requirements.txt ./

RUN pip install --no-cache-dir -r requirements.txt

COPY . ./

CMD gunicorn mysite.wsgi

replace mysite with the name of the folder that contains the wsgi.py file. make sure you have gunicorn in your requirements.txt file.

roseOP•11mo ago

Tysm! what exactly does WORKDIR need to refer to? the folder that holds the Dockerfile? or the main app?

Brody•11mo ago

it sets the work directory within the image, has nothing to do with the project itself, but its where the project or project files will be copied into

roseOP•11mo ago

ohh perfect thank you so much. building the updates now!

Brody•11mo ago

did you replace mysite?

roseOP•11mo ago

yes I did thanks for your help! you're a god on here. will let you know if there's any problems! the app takes a while to build because of the huge volume of texlive-full 🥲

Brody•11mo ago

sounds good

roseOP•11mo ago

I got the exact same error ahhh

Brody•11mo ago

deploy logs please https://bookmarklets.up.railway.app/log-downloader/

roseOP•11mo ago

deployment_logs_theb...

roseOP•11mo ago

Here's the build log:

build_logs_thebackya...

Brody•11mo ago

do you have a start command set in the service settings?

roseOP•11mo ago

hmmm no would that be in .wgsi file? actually so sorry I do have a start command in my railway.json file railway.json:

{
  "$schema": "https://schema.up.railway.app/railway.schema.json",
  "build": {
    "builder": "DOCKERFILE"
  },
  "deploy": {
    "startCommand": "python manage.py migrate && python manage.py collectstatic --noinput && gunicorn layoutGenerator.wsgi",
    "restartPolicyType": "ON_FAILURE",
    "restartPolicyMaxRetries": 10
  }
}

{
  "$schema": "https://schema.up.railway.app/railway.schema.json",
  "build": {
    "builder": "DOCKERFILE"
  },
  "deploy": {
    "startCommand": "python manage.py migrate && python manage.py collectstatic --noinput && gunicorn layoutGenerator.wsgi",
    "restartPolicyType": "ON_FAILURE",
    "restartPolicyMaxRetries": 10
  }
}

Brody•11mo ago

yeah that will overwrite the CMD directive in the Dockerfile

roseOP•11mo ago

hmm okay should I take out the startCommand line in that? in the railway.json* ^ Okay thank you so much!! I took out that line and it is working now 🙂

Brody•11mo ago

i mean it wasnt working with that line either lol but now that im thinking about it, you do want the migrate and collectstatic stuff, so please restore your railway.json to what you sent me. then run the manage.py makemigrations command locally and try to redeploy

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"Application Failed to Respond" error when using docker to build