Set up Redis using the latest version of redisio

This replaces the deprecated redis cookbook. Compiles the latest version
of Redis, currently 7.0.11

Refs #488

site-cookbooks/kosmos_redis/LICENSE

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+Copyright (c) 2019 Kosmos Developers
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

site-cookbooks/kosmos_redis/README.md

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+kosmos_redis Cookbook
+=====================
+
+redis wrapper cookbook
+Sets up the Redis version set in the default attributes

site-cookbooks/kosmos_redis/attributes/default.rb

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+node.override["redisio"]["version"] = "7.0.11"

site-cookbooks/kosmos_redis/metadata.rb

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+name             'kosmos_redis'
+maintainer       'Kosmos'
+maintainer_email 'mail@kosmos.org'
+license          'MIT'
+description      'redis wrapper cookbook'
+long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
+version          '0.2.0'
+
+depends 'redisio'
+depends 'backup'

site-cookbooks/kosmos_redis/recipes/default.rb

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+#
+# Cookbook Name:: kosmos_redis
+# Recipe:: default
+#
+
+include_recipe 'redisio::default'
+include_recipe 'redisio::enable'
+
+unless node.chef_environment == "development"
+  # Backup the databases to S3
+  databases = node['redisio']['servers'].map do |server, _|
+    "dump-#{server['port']}"
+  end
+  node.override["backup"]["redis"]["databases"] = databases
+  include_recipe "backup"
+end