CentOS build fails because of missing devtoolset-4

[OlegSmelov]

centos-6.6$ docker-compose build

# ...

No package devtoolset-4-gcc available.
No package devtoolset-4-gcc-c++ available.
Error: Nothing to do
ERROR: Service 'tf' failed to build: The command '/bin/sh -c yum update -y &&     yum install -y     curl     git     wget     tar     bzip2     patch     gcc     gcc-c++     which &&     yum -y install centos-release-scl &&     yum -y install devtoolset-4-gcc devtoolset-4-gcc-c++ &&     yum clean all' returned a non-zero code: 1

Changing CentOS version to 6.10 didn't fix the issue, but 7.4 did.

Maybe it's time to switch to CentOS 7?

[hadim]

I guess we can close here. Reopen if needed.