Update to golang 1.11-3.

Author: schmidtw

Dockerfile

@@ -5,14 +5,15 @@ FROM centos:6
 
 MAINTAINER [email protected]
 
+RUN yum update -y
 RUN yum install -y rpm-build rpmdevtools && rpmdev-setuptree
 RUN rpm --import https://mirror.go-repo.io/centos/RPM-GPG-KEY-GO-REPO
 RUN curl -s https://mirror.go-repo.io/centos/go-repo.repo | tee /etc/yum.repos.d/go-repo.repo
-RUN yum install -y golang
+RUN yum install -y golang git
 RUN yum clean all
 RUN mkdir -p /gopath/bin
 ENV GOPATH /gopath
 ENV GOBIN /gopath/bin
 ENV PATH $PATH:$GOBIN
 RUN curl https://glide.sh/get | sh
-RUN yum install -y git
+RUN yum update -y