protoc-artifacts: Update centos base from 6.6 to 6.9

This avoids the need to use "yum update && yum upgrade" in the container
to be able to contact GitHub, which requires TLS 1.2[1].

I have verified that binaries built with this container still run in the
previous container; no errors like "/lib64/libc.so.6: version
`GLIBC_2.14' not found", which occur if using too new of a glibc when
compiling. CentOS 6.6 has glibc version 2.12 release 1.209.el6. CentOS
6.9 has glibc version 2.12 release 1.149.el6. Both would upgrade to
release 1.212.el6 via "yum update && yum upgrade".

1. https://githubengineering.com/crypto-deprecation-notice/
This commit is contained in:
Eric Anderson 2018-07-06 17:37:52 -07:00 committed by Feng Xiao
parent 6fc2bac3f3
commit 11e2eca43e

View File

@ -1,4 +1,4 @@
FROM centos:6.6
FROM centos:6.9
RUN yum install -y git \
tar \