码头入口点循环运行

Question

我是新来的Docker，并试图调整一个设置从Symfony Docker到另一个应用程序使用不同的Dockerfile。

我使用一个端口入口点来运行数据库迁移，当然，这要求数据库处于打开状态。

我的Dockerfile调用了，但是在某种程度上进入了一个循环，重复运行它--入口点代码。

这是/docker/php上的Dockerfile：

FROM php:8.1-apache AS symfony_php

RUN a2enmod rewrite

RUN apt-get update \
 && apt-get install -y libpq-dev libzip-dev git libxml2-dev nano wget --no-install-recommends \
 && docker-php-ext-configure pgsql -with-pgsql=/usr/local/pgsql \
 && docker-php-ext-install pdo pdo_pgsql pgsql zip \
 && apt-get clean \
 && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

RUN wget https://getcomposer.org/download/2.3.5/composer.phar \
  && mv composer.phar /usr/bin/composer && chmod +x /usr/bin/composer


COPY docker/php/apache.conf /etc/apache2/sites-enabled/000-default.conf
COPY docker/php/php.ini /usr/local/etc/php/conf.d/app.ini

COPY docker/php/docker-entrypoint.sh /usr/local/bin/docker-entrypoint
RUN chmod +x /usr/local/bin/docker-entrypoint

ENV SYMFONY_PHPUNIT_VERSION=9

COPY . /var/www

WORKDIR /var/www

RUN mkdir -p var/cache var/log
RUN chmod -R 777 ./var/cache && chmod -R 777 ./var/log

RUN composer install --prefer-dist --no-progress --no-interaction

ENTRYPOINT ["docker-entrypoint"]

入口点也位于/docker/php。

set -e

if grep -q DATABASE_URL= .env; then
    echo "Waiting for database to be ready..."
    ATTEMPTS_LEFT_TO_REACH_DATABASE=60
    until [ $ATTEMPTS_LEFT_TO_REACH_DATABASE -eq 0 ] || DATABASE_ERROR=$(php bin/console dbal:run-sql -q "SELECT 1" 2>&1); do
        if [ $? -eq 255 ]; then
            # If the Doctrine command exits with 255, an unrecoverable error occurred
            ATTEMPTS_LEFT_TO_REACH_DATABASE=0
            break
        fi
        sleep 1
        ATTEMPTS_LEFT_TO_REACH_DATABASE=$((ATTEMPTS_LEFT_TO_REACH_DATABASE - 1))
        echo "Still waiting for database to be ready... Or maybe the database is not reachable. $ATTEMPTS_LEFT_TO_REACH_DATABASE attempts left."
    done

    if [ $ATTEMPTS_LEFT_TO_REACH_DATABASE -eq 0 ]; then
        echo "The database is not up or not reachable:"
        echo "$DATABASE_ERROR"
        exit 1
    else
        echo "The database is now ready and reachable"
    fi

    if ls -A migrations/*.php >/dev/null 2>&1; then
        php bin/console doctrine:migrations:migrate --no-interaction
    fi
fi

exec docker-php-entrypoint "$@"

由此产生的循环：

​

​

Answer 1

将这一点添加到我的切入点解决了这个问题：

/usr/sbin/apache2ctl -D前台

入口点似乎中断了服务器进程，并将上面的片段放置在服务器上。

编辑：

更好的是：

更改Dockerfile如下：

ENTRYPOINT ["docker-entrypoint"]

CMD ["apachectl", "-D", "FOREGROUND"]

并在entrypoint.sh上保持原稿：

 exec docker-php-entrypoint "$@"