diff --git a/ansible/docker.yml b/ansible/docker.yml
new file mode 100644
index 0000000..b4c3769
--- /dev/null
+++ b/ansible/docker.yml
@@ -0,0 +1,5 @@
+---
+- hosts: docker-host
+  become: yes
+  roles:
+    - docker
diff --git a/ansible/hosts b/ansible/hosts
index d27c2ca..bb48d6e 100644
--- a/ansible/hosts
+++ b/ansible/hosts
@@ -19,6 +19,12 @@ sub.domain.com:22
 sub.domain.com:22
 127.0.0.1:22
 
+[nginx-server]
+sub.domain.com:22
+
+[docker-host]
+127.0.0.1:22
+
 ## green.example.com
 ## blue.example.com
 ## 192.168.100.1
diff --git a/ansible/nginx.yml b/ansible/nginx.yml
index 221040c..18be294 100644
--- a/ansible/nginx.yml
+++ b/ansible/nginx.yml
@@ -1,6 +1,5 @@
 ---
-- hosts: nginx
+- hosts: nginx-server
   become: yes
   roles:
   - nginx
-  - core