Add GPG key and reorganize dockerbox configuration

- Add new primary GPG key in dev config for compose repos
- Slight reorganization of the dockerbox production playbook
- Remove group management in the docker role
- Move HSTS inside the location block
- Add git ignore entry for .ansible files
- Add X-Forwarded-Proto proxy header

dev/host_vars/dockerbox.yml

@@ -4,8 +4,12 @@ manage_network: false
 
 # Import my GPG key for git signature verification
 root_gpgkeys:
+  - name: kris@lamoureux.io
+    id: 42A3A92C5DA0F3E5F71A3710105B748C1362EB96
+  # Older key, but still in use
   - name: kris@lamoureux.io
     id: FBF673CEEC030F8AECA814E73EDA9C3441EDA925
+    server: keyserver.ubuntu.com
 
 # proxy
 proxy: