update

mysql/Dockerfile

@@ -2,15 +2,22 @@ FROM mysql:5.7.42
 
 LABEL maintainer="Mahmoud Zalt <mahmoud@zalt.me>"
 
+# 时区配置
 ARG TZ=UTC
 ENV TZ ${TIMEZONE}
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ >/etc/timezone && chown -R mysql:root /var/lib/mysql/
 
+# 复制自定义的my.cnf
 COPY my.cnf /etc/mysql/conf.d/my.cnf
+
+# 初始化数据库
 COPY docker-entrypoint-initdb.d /docker-entrypoint-initdb.d
 
+# my.cnf只读权限
 RUN chmod 0444 /etc/mysql/conf.d/my.cnf
 
-CMD ["mysqld"]
-
+# 暴露3306端口
 EXPOSE 3306
+
+# 启动mysql
+CMD ["mysqld"]