Merge pull request #49 from khaledk2/support_redissession

Support of the session engine with Redis

README.md

@@ -99,6 +99,19 @@ OMERO.web with a custom configuration using `omero_web_config_set`:
             omero.web.public.user: public
             omero.web.public.password: secret-password
 
+OMERO.web with the redis session engine    
+
+    hosts: localhost    
+    roles:
+    - role: ome.omero_web
+      omero_web_setup_redis_session: true
+      omero_web_config_set:
+        "omero.web.caches":
+           "default": 
+              "BACKEND": "django_redis.cache.RedisCache"
+              "LOCATION": "redis://127.0.0.1:6379/0"
+        "omero.web.session_engine": "django.contrib.sessions.backends.cache"
+
 OMERO.web with a custom configuration using a configuration file `web-custom-config.omero`:
 
     - hosts: localhost

defaults/main.yml

@@ -28,6 +28,9 @@ omero_web_config_set: {}
 # Install and configure Nginx
 omero_web_setup_nginx: true
 
+# Install required package to deploy redis session engine
+omero_web_setup_redis_session: false
+
 # List of additional Python packages to be installed into virtualenv
 omero_web_python_addons: []
 

tasks/web-install-py3.yml

@@ -114,6 +114,18 @@
     - omero-web rewrite omero-web configuration
     - omero-web restart omero-web
 
+- name: omero web | install django_redis
+  become: true
+  pip:
+    name: django_redis
+    state: present
+    virtualenv: "{{ omero_web_virtualenv_basedir }}"
+    virtualenv_command: /usr/local/bin/ome-python3-virtualenv
+  notify:
+    - omero-web rewrite omero-web configuration
+    - omero-web restart omero-web
+  when: omero_web_setup_redis_session
+
 # TODO: figure out dependencies, use omero-web version
 # Install/upgrade OMERO.web after the configuration files are updated
 # This should mean that if OMERO.web fails to start due to a configuration