fix: SCHWED-3097 Fix broken locales

singularity/Singularity.1.7.1

@@ -53,7 +53,15 @@ apt-get update -y && apt-get install -y cmake \
 										doxygen \
 										swig \
 										clustalw \
-                                        python-virtualenv
+                                        python-virtualenv \
+                                        locales
+
+# SET LOCALE
+############
+echo "LC_ALL=en_US.UTF-8" >> /etc/environment
+echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen
+echo "LANG=en_US.UTF-8" > /etc/locale.conf
+locale-gen en_US.UTF-8
 
 # INSTALL SOME PYTHON PACKAGES GLOBALY
 ######################################