fix centos scl repo

Author: doitian

centos-7/Dockerfile

@@ -7,6 +7,9 @@ RUN set -eux; \
     sed -i 's/^#.*baseurl=http/baseurl=http/g' /etc/yum.repos.d/CentOS-*.repo; \
     sed -i 's/^mirrorlist=http/#mirrorlist=http/g' /etc/yum.repos.d/CentOS-*.repo; \
     yum install -y centos-release-scl; \
+    sed -i 's/mirror.centos.org/vault.centos.org/g' /etc/yum.repos.d/CentOS-*.repo; \
+    sed -i 's/^#.*baseurl=http/baseurl=http/g' /etc/yum.repos.d/CentOS-*.repo; \
+    sed -i 's/^mirrorlist=http/#mirrorlist=http/g' /etc/yum.repos.d/CentOS-*.repo; \
     yum install -y git curl make devtoolset-8 llvm-toolset-7 perl-core pcre-devel wget zlib-devel; \
     yum clean all; \
     rm -rf /var/cache/yum

templates/centos-7.Dockerfile

@@ -7,6 +7,9 @@ RUN set -eux; \
     sed -i 's/^#.*baseurl=http/baseurl=http/g' /etc/yum.repos.d/CentOS-*.repo; \
     sed -i 's/^mirrorlist=http/#mirrorlist=http/g' /etc/yum.repos.d/CentOS-*.repo; \
     yum install -y centos-release-scl; \
+    sed -i 's/mirror.centos.org/vault.centos.org/g' /etc/yum.repos.d/CentOS-*.repo; \
+    sed -i 's/^#.*baseurl=http/baseurl=http/g' /etc/yum.repos.d/CentOS-*.repo; \
+    sed -i 's/^mirrorlist=http/#mirrorlist=http/g' /etc/yum.repos.d/CentOS-*.repo; \
     yum install -y git curl make devtoolset-8 llvm-toolset-7 perl-core pcre-devel wget zlib-devel; \
     yum clean all; \
     rm -rf /var/cache/yum