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dockerdocker-composegunicorn

Container not running from image

I have an image segmentation_site_segmentation_site. The image is built from the following Dockerfile and Docker-Compose file.

junaidali@ubuntu:~/Documents/segmentation/segmentation_site$ sudo docker images
REPOSITORY                            TAG            IMAGE ID       CREATED        SIZE
segmentation_site_segmentation_site   latest         e1793ab30737   3 hours ago    3.07GB

Dockerfile

FROM python:3
ENV PYTHONUNBUFFERED 1
WORKDIR /app

ADD . /app
COPY ./requirements.txt /app/requirements.txt

RUN pip install --upgrade pip
RUN pip3 install -r requirements.txt

COPY . /app

Docker-compose file

version: '3'
services:
    segmentation_site:
        build: .
        command: gunicorn -b 0.0.0.0:8000 segmentation_site.wsgi 
        ports:
            - 8000:8000

Doing docker-compose up runs the image perfectly, as the model loaded shows up.

junaidali@ubuntu:~/Documents/segmentation/segmentation_site$ sudo docker-compose up
Starting segmentation_site_segmentation_site_1 ... done
Attaching to segmentation_site_segmentation_site_1
segmentation_site_1  | [2022-05-10 16:36:26 +0000] [1] [INFO] Starting gunicorn 20.0.4
segmentation_site_1  | [2022-05-10 16:36:26 +0000] [1] [INFO] Listening at: http://0.0.0.0:8000 (1)
segmentation_site_1  | [2022-05-10 16:36:26 +0000] [1] [INFO] Using worker: sync
segmentation_site_1  | [2022-05-10 16:36:26 +0000] [8] [INFO] Booting worker with pid: 8
segmentation_site_1  | 2022-05-10 16:36:32.195915: W tensorflow/stream_executor/platform/default/dso_loader.cc:64] Could not load dynamic library 'libcudart.so.11.0'; dlerror: libcudart.so.11.0: cannot open shared object file: No such file or directory
segmentation_site_1  | 2022-05-10 16:36:32.196645: I tensorflow/stream_executor/cuda/cudart_stub.cc:29] Ignore above cudart dlerror if you do not have a GPU set up on your machine.
segmentation_site_1  | tensorflow imported.
segmentation_site_1  | 2022-05-10 16:36:46.315257: W tensorflow/stream_executor/platform/default/dso_loader.cc:64] Could not load dynamic library 'libcuda.so.1'; dlerror: libcuda.so.1: cannot open shared object file: No such file or directory
segmentation_site_1  | 2022-05-10 16:36:46.317221: W tensorflow/stream_executor/cuda/cuda_driver.cc:269] failed call to cuInit: UNKNOWN ERROR (303)
segmentation_site_1  | 2022-05-10 16:36:46.318149: I tensorflow/stream_executor/cuda/cuda_diagnostics.cc:156] kernel driver does not appear to be running on this host (73c56bba055c): /proc/driver/nvidia/version does not exist
segmentation_site_1  | model loaded.

But when I am running this image as container using docker run e1793ab30737 it shows no output

junaidali@ubuntu:~/Documents/segmentation/segmentation_site$ sudo docker run e1793ab30737
junaidali@ubuntu:~/Documents/segmentation/segmentation_site$

Can anyone explain what is the right way to run the image docker run command as when this image will be pulled in the deployment location, it can only be run using docker run command.

Thanks

Solution

  • Remove command: gunicorn -b 0.0.0.0:8000 segmentation_site.wsgi from your docker-compose.yaml and put it into your Dockerfile like this:

    CMD gunicorn -b 0.0.0.0:8000 segmentation_site.wsgi

    Otherwise the image doesn't start any process

    Here is the official Dockerfile documentation for more information.