fix CentOS 7 with default Erlang
diff --git a/ansible/roles/erlang-default-centos/tasks/main.yml b/ansible/roles/erlang-default-centos/tasks/main.yml
index dfe0a8b..61e8fc3 100644
--- a/ansible/roles/erlang-default-centos/tasks/main.yml
+++ b/ansible/roles/erlang-default-centos/tasks/main.yml
@@ -18,14 +18,4 @@
 - name: install default Erlang version
   yum: name={{item}} state=present
   with_items:
-  - erlang-asn1
-  - erlang-erts
-  - erlang-os_mon
-  - erlang-xmerl
-
-# required for make check and make dialyze
-- name: install packages required to build CouchDB
-  yum: name={{item}} state=present
-  with_items:
-  - erlang-eunit
-  - erlang-dialyzer
+  - erlang
diff --git a/docker/centos-7-erlang-default/Dockerfile b/docker/centos-7-erlang-default/Dockerfile
index 851ff1e..7298913 100644
--- a/docker/centos-7-erlang-default/Dockerfile
+++ b/docker/centos-7-erlang-default/Dockerfile
@@ -33,6 +33,6 @@
   --connection=local \
   --inventory-file=./docker-inventories/centos-7-erlang-default
 
-# USER couchdb
+USER couchdb
 
 CMD ["/home/couchdb/build-ci.sh"]