gunicornFlask应用程序在Docker中挂起

我运行了一个Flask应用程序gunicorn（在装有 Ubuntu 20.04 的 Dell latitude 5410 笔记本电脑上），我配置了Docker以按照本精彩指南中的建议运行它。

这是我的boot.sh：

#!/bin/sh
source venv/bin/activate
while true; do
    flask db init
    flask db migrate
    flask db upgrade
    if [[ "$?" == "0" ]]; then
        break
    fi
    echo Deploy command failed, retrying in 5 secs...
    sleep 5
done
exec gunicorn -b 0.0.0.0:5000 --access-logfile - --error-logfile - main:app

并将Dockerfile其称为入口点：

FROM python:3.8-alpine

RUN adduser -D diagnosticator

RUN apk add --no-cache bash mariadb-dev mariadb-client python3-dev build-base libffi-dev openssl-dev

WORKDIR /home/diagnosticator

COPY requirements.txt requirements.txt
RUN python -m venv venv
RUN venv/bin/pip install -U pip
RUN venv/bin/pip install wheel
RUN venv/bin/pip install -r requirements.txt
RUN venv/bin/pip install gunicorn pymysql

COPY app app
COPY upload upload
COPY variant_dependencies variant_dependencies
COPY main.py config.py boot.sh ./
COPY convert_VCF_REDIS.py asilo_variant_functions.py cloud_bigtable_functions.py mongodb_functions.py redis_functions.py ./
COPY docker_functions.py ./
RUN chmod a+x boot.sh

ENV FLASK_APP main.py

RUN chown -R diagnosticator:diagnosticator ./
USER diagnosticator

EXPOSE 5000
ENTRYPOINT ["./boot.sh"]

我使用以下命令运行 Docker docker-network：

docker network create --driver bridge diagnosticator-net

我注意到的问题是 Docker 容器由于某种原因在一段时间不活动并gunicorn出现错误后挂起：

[关键] 工人超时

这里的码头工人日志：

192.168.32.1 - - [12/Jun/2021:12:28:30 +0000] "GET /patient_page/GHARIgANY21uuITW2196372 HTTP/1.1" 200 19198 "http://127.0.0.1:3000/patient_result" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36"
[2021-06-12 12:29:10 +0000] [1] [CRITICAL] WORKER TIMEOUT (pid:16)
[2021-06-12 12:29:10 +0000] [16] [INFO] Worker exiting (pid: 16)
[2021-06-12 12:29:10 +0000] [17] [INFO] Booting worker with pid: 17
[2021-06-12 12:29:10,905] INFO in __init__: Diagnosticator-local startup
[2021-06-12 12:29:41 +0000] [1] [CRITICAL] WORKER TIMEOUT (pid:17)
20
[2021-06-12 12:29:41 +0000] [17] [INFO] Worker exiting (pid: 17)
[2021-06-12 12:29:41 +0000] [18] [INFO] Booting worker with pid: 18
[2021-06-12 12:29:42,094] INFO in __init__: Diagnosticator-local startup
[2021-06-12 12:30:12 +0000] [1] [CRITICAL] WORKER TIMEOUT (pid:18)
[2021-06-12 12:30:12 +0000] [18] [INFO] Worker exiting (pid: 18)

并且该应用程序只是永远挂起加载您尝试访问的任何页面。

我在这里看到了一些建议并在谷歌上搜索它，比如这个或这个，建议继续工作，gunicorn --timeout但无论我在那里放什么，问题都会不断发生。

任何帮助将不胜感激，因为我无法找出任何真正的解决方案！