perf(build): 优化构建时用的mirror

Dockerfile

@@ -18,6 +18,7 @@ WORKDIR /opt/jumpserver
 
 COPY ./requirements ./requirements
 RUN useradd jumpserver
+RUN wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
 RUN yum -y install epel-release && \
       echo -e "[mysql]\nname=mysql\nbaseurl=${MYSQL_MIRROR}\ngpgcheck=0\nenabled=1" > /etc/yum.repos.d/mysql.repo
 RUN yum -y install $(cat requirements/rpm_requirements.txt)