Ошибка при создание контейнера, docker run

This error on startup "docker-compose up":

ERROR: for django Cannot start service backend: failed to create shim: OCI runtime create failed: runc create failed: unable to start container process: exec: "gunicorn": executable file not found in $PATH: unknown

Dockerfile:

FROM python:3.9

ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

RUN mkdir /stepsai_crm-devlop

WORKDIR /stepsai_crm-devlop

RUN pip install --upgrade pip

COPY stepsai_crm-devlop/requirements.txt .

RUN pip install -r requirements.txt

COPY ./stepsai_crm-devlop /stepsai_crm-devlop

docker-compose.yml:

services:
  backend:
    build: ./backend
    container_name: django
    restart: always
    command: "gunicorn core.wsgi:application --bind 0.0.0.0:8000"
    volumes:
      - ./backend/stepsai_crm-devlop:/stepsai_crm-devlop/        
      - staticfiles_env:/stepsai_crm-devlop/static
    expose:
      - "8000"
    depends_on:
      - db
    networks:
      - django-network

Сontainer is created but not raised

Вернуться на верх