Add gunicorn

requirements.txt

@@ -4,6 +4,7 @@ ansible-vault==2.1.0
 appdirs==1.4.3
 apturl==0.5.2
 arandr==0.1.10
+attrs==21.4.0
 bcrypt==3.1.7
 blinker==1.4
 Brlapi==0.7.0
@@ -27,9 +28,11 @@ fasteners==0.14.1
 filelock==3.0.12
 Flask==2.1.1
 future==0.18.2
+gunicorn==20.1.0
 httplib2==0.14.0
 idna==2.8
 importlib-metadata==4.11.3
+iniconfig==1.1.1
 itsdangerous==2.1.2
 Jinja2==3.0.3
 keyring==18.0.1
@@ -57,9 +60,11 @@ paramiko==2.6.0
 pendulum==2.1.2
 pexpect==4.6.0
 Pillow==7.0.0
+pluggy==1.0.0
 powerline-status==2.7
 protobuf==3.6.1
 psutil==5.5.1
+py==1.11.0
 pycairo==1.16.2
 pycups==1.9.73
 Pygments==2.3.1
@@ -90,6 +95,7 @@ simplejson==3.16.0
 six==1.14.0
 ssh-import-id==5.10
 systemd-python==234
+tomli==2.0.1
 ubuntu-advantage-tools==27.7
 ubuntu-drivers-common==0.0.0
 ufw==0.36