Rewrite of the 'debops.redis' role

CHANGES.rst

@@ -1,3 +1,5 @@
+.. _redis__ref_changelog:
+
 Changelog
 =========
 
@@ -22,6 +24,10 @@ Changed
 - Move the role variables from ``vars/main.yml`` to ``defaults/main.yml``.
   [drybjed]
 
+- The role has been redesigned from the ground up. Variables and service
+  parameters have been reorganized, role supports standalone as well as
+  clustered operation with Redis Sentinel. [drybjed]
+
 
 debops.redis v0.1.0 - 2016-06-28
 --------------------------------

UPGRADE.rst

@@ -0,0 +1,35 @@
+.. _redis__ref_upgrade_nodes:
+
+Upgrade notes
+=============
+
+The upgrade notes only describe necessary changes that you might need to make
+to your setup in order to use a new role release. Refer to the
+:ref:`redis__ref_changelog` for more details about what has changed.
+
+From v0.1.0 to v0.2.0
+---------------------
+
+All inventory variables have been renamed so you will need to update your
+inventory. Check the variables in ``defaults/main.yml`` file to see the changed
+names.
+
+The Redis Server and Sentinel parameters are not configured in separate default
+variables anymore - instead, each one uses a set of YAML dictionary variables
+to hold the configuration. Redis Server can be configured on all levels of the
+Ansible inventory (all, group, host), Redis Sentinel can only be configured
+globally.
+
+Redis requires an authentication by a password before applications can use it.
+The password is accessible either via Ansible local facts (usable by other
+Ansible roles), or using the ``redis-password`` command (usable by users
+included in the ``redis-auth`` UNIX group). If you store the password in
+a configuration file, make sure that only specific user or group can read it;
+otherwise it can be read by untrusted users and the security will be broken.
+
+Support for Debian Wheezy and SysVinit is removed, role relies on systemd units
+instead.
+
+The Redis Server and Sentinel configuration files have been reorganized, role
+most likely will not work with existing installations. Clean reinstall is
+strongly recommended.