Docker容器运行多个命令，有一个报错就重启容器

核心是entrypoint.sh脚本中的内容。

• Dockerfile案例

FROM python:3.9.16

WORKDIR /code

ADD requirements.txt /code/requirements.txt

RUN pip install -i https://pypi.tuna.tsinghua.edu.cn/simple/  -r /code/requirements.txt

RUN spacy download en_core_web_trf

ADD . .

RUN mkdir -p /data/weblog &&  touch /data/weblog/rms.debug.log && mkdir -p /data/cache/aminer

RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && echo 'Asia/Shanghai' >/etc/timezone

ENV PYTHONIOENCODING=utf-8

RUN chmod +x entrypoint.sh

CMD [ "./entrypoint.sh" ]

• entrypoint.sh 案例

#!/bin/bash

#nohup python manage_shenzhen.py rqworker --worker-ttl 600 &
#gunicorn --config gunicorn.conf recsys.wsgi:application

echo "start $TASK_NAME"

if [ "$TASK_NAME" = "api" ]; then
    # 定义要执行的命令
    commands=(
        "gunicorn --config gunicorn.conf recsys.wsgi:application &"
    )

elif [ "$TASK_NAME" = "task" ]; then
    commands=(
        "gunicorn --config gunicorn.conf recsys.wsgi:application &"
        "python run_script.py task/cron_export_user_log.py &"
        "python run_script.py task/cron_rec_train.py &"
    )

fi

# 启动命令并保存PID
pids=()
cmd_names=()

for cmd in "${commands[@]}"; do
    eval "$cmd"
    pid=$!
    pids+=($pid)
    cmd_names+=("$cmd")
done

# 监控进程的状态
while true; do
    for i in "${!pids[@]}"; do
        pid=${pids[$i]}
        cmd=${cmd_names[$i]}
        if ! kill -0 $pid > /dev/null 2>&1; then
            echo "Command '$cmd' with PID $pid has failed. Restarting container..."
            exit 1  # 退出容器，使其触发 Docker 重启策略
        fi
    done
    sleep 5
done

• build 镜像后运行

docker build . -t rms-django:v$1


docker stop rms-recsys
docker rm rms-recsys

docker run -ti -d --name rms-recsys -p 8000:8000  \
-e TASK_NAME=$1 --restart="always" \
-e DJANGO_SETTINGS_MODULE="recsys.settings_shenzhen" \
-v /data/cache/aminer:/data/cache/aminer \
-v /home/gkx/logs/rms-recsys:/data/weblog \
-v /home/gkx/rms/appserver/recsys/nltk_data:/root/nltk_data \
rms-django:v$2