added gunicorn role

roles/gunicorn/files/gunicorn.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=Gunicorn Service
+After=nss-user-lookup-target
+
+[Service]
+PIDFile=/run/gunicorn/%i.pid
+User=%i
+Group=%i
+ExecStart=/usr/bin/gunicorn --pid /run/gunicorn/%i.pid \
+    --bind unix:/run/gunicorn/%i.sock %i
+ExecReload=/bin/kill -s HUP $MAINPID
+ExecStop=/bin/kill -s TERM $MAINPID
+PrivateTmp=true
+
+[Install]
+Also=gunicorn@%i.socket

roles/gunicorn/files/gunicorn.socket

@@ -0,0 +1,11 @@
+[Unit]
+Description=Gunicorn Socket
+
+[Socket]
+ListenStream=/run/gunicorn/gunicorn-%i.sock
+RuntimeDirectory=gunicorn
+SocketUser=%i
+SocketMode=0660
+
+[Install]
+WantedBy=sockets.target

roles/gunicorn/tasks/main.yml

@@ -0,0 +1,42 @@
+---
+- name: create gunicorn group
+  group:
+    name: gunicorn
+    system: true
+
+- name: install gunicorn packages
+  package:
+    name: python-gunicorn
+    state: installed
+
+- name: create runtime directory
+  file:
+    dest: /run/gunicorn
+    state: directory
+    mode: 0770
+    owner: root
+    group: gunicorn
+
+- name: create tmpfiles config
+  copy:
+    dest: /etc/tmpfiles.d/gunicorn.conf
+    content: "d /run/gunicorn 770 root gunicorn\n"
+    mode: 0644
+    owner: root
+    group: "{{ ansible_wheel }}"
+
+- name: create systemd socket template
+  copy:
+    dest: /lib/systemd/system/gunicorn@.socket
+    src: gunicorn.socket
+    mode: 0644
+    owner: root
+    group: "{{ ansible_wheel }}"
+
+- name: create systemd service template
+  copy:
+    dest: /lib/systemd/system/gunicorn@.service
+    src: gunicorn.service
+    mode: 0644
+    owner: root
+    group: "{{ ansible_wheel }}"