Graceful deploys for gunicorn. Turns out a HUP signal to the docker container isn't the same thing as a HUP signal to the actual process, which can be done outside of the container.

ansible/deploy_app.yml

@@ -20,7 +20,12 @@
     
     - name: Reload gunicorn
       become: yes
-      command: "docker kill --signal=HUP newsblur_web"
+      block:
+        - name: Find gunicorn master process
+          shell: "ps -C gunicorn fch -o pid | head -n 1"
+          register: psaux
+        - name: Reload gunicorn
+          command: "kill -HUP {{ psaux.stdout }}"
       # when: pulled.changed
 
     - name: Start Consul

config/gunicorn_conf.py

@@ -18,6 +18,7 @@ x_forwarded_for_header = "X-FORWARDED-FOR"
 forwarded_allow_ips = "*"
 limit_request_line = 16000
 limit_request_fields = 1000
+worker_tmp_dir = /dev/shm
 
 if GIGS_OF_MEMORY > NUM_CPUS:
     workers = NUM_CPUS