Make sure the locales are installed correctly

Applies the same change we have in the POWER and ARM containers to our
other containers.

linux-anvil-comp7/Dockerfile

@@ -11,6 +11,14 @@ ADD http://worldclockapi.com/api/json/utc/now /opt/docker/etc/timestamp
 # Resolves a nasty NOKEY warning that appears when using yum.
 RUN rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
 
+# Fix up issues with locales because the default images have these minimized
+# to the point of not being properly functional
+# See: https://github.com/CentOS/sig-cloud-instance-images/issues/71
+RUN yum update -y && \
+    yum reinstall -y glibc-common && \
+    yum clean all
+RUN localedef -i en_US -f UTF-8 en_US.UTF-8
+
 # Install basic requirements.
 RUN yum update -y && \
     yum install -y \

linux-anvil-cuda/Dockerfile

@@ -19,6 +19,14 @@ ADD http://worldclockapi.com/api/json/utc/now /opt/docker/etc/timestamp
 # Resolves a nasty NOKEY warning that appears when using yum.
 RUN rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
 
+# Fix up issues with locales because the default images have these minimized
+# to the point of not being properly functional
+# See: https://github.com/CentOS/sig-cloud-instance-images/issues/71
+RUN yum update -y && \
+    yum reinstall -y glibc-common && \
+    yum clean all
+RUN localedef -i en_US -f UTF-8 en_US.UTF-8
+
 # Remove preinclude system compilers
 RUN rpm -e --nodeps --verbose gcc gcc-c++