Docker入口点为什么我得到错误的参数

我正在制作具有此Dockerfile的自定义泊坞窗图像

# Dockerfile for moodle instance. # Forked from Jonathan Hardison's <[e-mail]> docker version. https://github.com/jmhardison/docker-moodle FROM php:7.0-apache MAINTAINER Dimitrios Desyllas <[e-mail]> #Original Maintainer Jon Auer <[e-mail]> VOLUME ["/var/moodledata"] EXPOSE 80 # Let the container know that there is no tty ENV DEBIAN_FRONTEND noninteractive # Moodle Info ENV MOODLE_URL http://0.0.0.0 ENV MOODLE_ADMIN admin ENV MOODLE_ADMIN_PASSWORD Admin~1234 ENV MOODLE_ADMIN_EMAIL [e-mail] #DATABASE SETTINGS #Supported 'pgsql', 'mariadb', 'mysqli', ENV MOODLE_DB_TYPE 'mysqli' ENV MOODLE_DB_HOST '' ENV MOODLE_DB_USER '' ENV MOODLE_DB_PASSWORD '' ENV MOODLE_DB_NAME 'moodle' ENV MOODLE_DB_PORT '3306' RUN echo "Installing php and external tools" RUN apt-get update && \ apt-get -f -y install mysql-client pwgen aspell unzip wget libxmlrpc-c++8-dev libxml2-dev libpng-dev libicu-dev libmcrypt-dev &&\ docker-php-ext-install mysqli && \ docker-php-ext-install pdo pdo_mysql && \ docker-php-ext-install xmlrpc && \ docker-php-ext-install mbstring && \ docker-php-ext-install zip && \ docker-php-ext-install xml && \ docker-php-ext-install intl && \ docker-php-ext-install soap && \ docker-php-ext-install mcrypt && \ docker-php-ext-install gd && \ echo "Installing moodle" && \ wget https://download.moodle.org/download.php/direct/stable31/moodle-latest-31.tgz -O /tmp/moodle-latest-31.tgz && \ rm -rf /var/www/html/index.html && \ tar -xvf /tmp/moodle-latest-31.tgz -C /tmp && \ mv /tmp/moodle/* /var/www/html/ COPY moodle-config.php /var/www/html/config.php COPY ./entrypoint.sh /usr/local/bin/entrypoint.sh RUN chmod +x /usr/local/bin/entrypoint.sh # Cleanup RUN apt-get clean autoclean && apt-get autoremove -y && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /var/lib/dpkg/* /var/lib/cache/* /var/lib/log/* ENTRYPOINT /usr/local/bin/entrypoint.sh CMD ["/usr/sbin/apache2ctl", "-D", "FOREGROUND"] 

但出于某种原因，在下面的entrypoint.sh脚本中，我得到了exec的错误参数

 #!/bin/bash echo "Installing moodle" echo "Fixing files and permissions" chown -R www-data:www-data /var/www/html find /var/www/html -iname "*.php" | xargs chmod +x echo "placeholder" > /var/moodledata/placeholder chown -R www-data:www-data /var/moodledata chmod 777 /var/moodledata echo "Setting up database" : ${MOODLE_DB_TYPE:='mysqli'} if [ "$MOODLE_DB_TYPE" = "mysqli" ] || [ "$MOODLE_DB_TYPE" = "mariadb" ]; then set ${MOODLE_DB_HOST:=$DB_PORT_3306_TCP_ADDR} echo "Waiting for mysql to connect.." while ! mysqladmin ping -h"$MOODLE_DB_HOST" --silent; do sleep 1 done echo "Setting up the database connection info" : ${MOODLE_DB_USER:=${DB_ENV_MYSQL_USER:-root}} : ${MOODLE_DB_NAME:=${DB_ENV_MYSQL_DATABASE:-'moodle'}} : ${MOODLE_DB_PORT:=${DB_PORT_3306_TCP_PORT}} if [ "$MOODLE_DB_USER" = 'root' ]; then : ${MOODLE_DB_PASSWORD:=$DB_ENV_MYSQL_ROOT_PASSWORD} else : ${MOODLE_DB_PASSWORD:=$DB_ENV_MYSQL_PASSWORD} fi if [ -z "$MOODLE_DB_PASSWORD" ]; then echo >&2 'error: missing required MOODLE_DB_PASSWORD environment variable' echo >&2 ' Did you forget to -e MOODLE_DB_PASSWORD=... ?' echo >&2 exit 1 fi else echo >&2 "This database type is not supported" echo >&2 "Did you forget to -e MOODLE_DB_TYPE='mysqli' ^OR^ -e MOODLE_DB_TYPE='mariadb' ?" exit 1 fi echo "Installing moodle" php /var/www/html/admin/cli/install_database.php \ --adminemail=${MOODLE_ADMIN_EMAIL} \ --adminuser=${MOODLE_ADMIN} \ --adminpass=${MOODLE_ADMIN_PASSWORD} \ --agree-license exec "$@" 

但在exec "$@" "$@"值得到一个docker的IP而不是启动apache /usr/sbin/apache2ctl -D FOREGROUND的注释，我不知道为什么会发生这种情况。

原作在https://github.com/ellakcy/docker-moodle

Answer 1

从脚本中移除行set ${MOODLE_DB_HOST:=$DB_PORT_3306_TCP_ADDR}中的set ${MOODLE_DB_HOST:=$DB_PORT_3306_TCP_ADDR} 。

 $ help set set: set [-abefhkmnptuvxBCHP] [-o option-name] [--] [arg ...] Set or unset values of shell options and positional parameters.