[Dockerfile] setting locales with localectl

Dockerfile

@@ -21,7 +21,7 @@ RUN emerge -C =dev-python/python-exec-0.3.1
 RUN echo "en_US.UTF-8 UTF-8 " >> /etc/locale.gen
 RUN locale-gen
 RUN eselect locale set en_US.utf8
-RUN env-update
+RUN env-update && source /etc/profile
 
 # Adding required use flags
 ADD ./conf/00-sabayon.package.use /etc/portage/package.use/00-sabayon.package.use
@@ -46,8 +46,6 @@ RUN eselect python set python2.7
 # XXX: hackz ca-certificates need to be re-installed, fails in equo rescue generate phase
 RUN emerge -C python:3.2 python:3.3 app-misc/ca-certificates
 
-RUN eselect locale set en_US.utf8
-
 RUN rm -rf /etc/make.profile
 
 # Generate equo db, unfortunately we have to use expect
@@ -80,6 +78,9 @@ RUN rm -rf /sabayon-build.sh
 
 RUN equo u
 
+# Setting locales with localect
+RUN localectl set-locale LANG=en_US.UTF-8
+
 ENV PACKAGES_TO_REMOVE="sys-devel/llvm dev-libs/ppl app-admin/sudo x11-libs/gtk+:3 x11-libs/gtk+:2 mariadb sys-fs/ntfs3g app-accessibility/at-spi2-core app-accessibility/at-spi2-atk sys-devel/base-gcc:4.7 sys-devel/gcc:4.7 net-print/cups"
 ENV PACKAGES_TO_ADD="app-text/pastebunz dev-lang/python-exec-0.3.1-r1 sys-boot/grub:2"