Merge branch 'dachs' of https://github.com/chbrandt/docker-dachs into dachs

dockerfile/Dockerfile

@@ -24,7 +24,8 @@ RUN DEBIAN_FRONTEND='noninteractive'    && \
     apt-get clean
 
 ENV GAVO_ROOT="/var/gavo"                       \
-    GAVOSETTINGS="${GAVO_ROOT}/etc/gavo.rc"
+    GAVOSETTINGS="${GAVO_ROOT}/etc/gavo.rc"     \
+    PGHOST="postgres"
     
 RUN addgroup --system gavo                                          && \
     adduser --system --ingroup gavo gavo                            && \