Rolling deploys for web.

ansible/deploy_app.yml

@@ -1,11 +1,15 @@
 ---
 - hosts: app
   gather_facts: false
+  serial: "50%"
   vars_files:
     - env_vars/base.yml
     - env_vars/dev.yml
 
   tasks:
+    - name: Leave consul
+      command: consul leave
+
     - name: Pull newsblur_web github
       git:
         repo: https://github.com/samuelclay/NewsBlur.git
@@ -17,3 +21,10 @@
       become: yes
       command: "docker kill --signal=HUP newsblur_web"
       # when: pulled.changed
+
+    - name: Start Consul
+      become: yes
+      service:
+        name: consul
+        state: started
+        enabled: true