elasticache redis and memcache recipes

custom-cookbooks/elasticache-memcache/README.md

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+## Optional Cookbook for Engine Yard Cloud
+
+# Elasticache Memcache
+
+AWS Elasticache is managed service for Memcache.
+
+## Overview
+
+This cookbook generates configuration file from provided environment variables.
+
+## Installation
+
+### Environment Variables
+
+When the environment variable `EY_ELASTICACHE_MEMCACHE_ENABLED` is set to "true", this recipe will be enabled and setup up Memcache configuration file.
+`EY_ELASTICACHE_MEMCACHE_URL` vairable will be used for the URL
+
+
+### Custom Chef
+
+Since this is an optional recipe, it can be installed by simply including it via a `depends` in your `ey-custom/metadata.rb` file and an `include_recipe` in the appropriate hook file.
+
+## Notes
+
+1. This recipe will put in place a `memcached.yml` on `/data/{app_name}/shared/config/`.

custom-cookbooks/elasticache-memcache/attributes/default.rb

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+default["elasticache-memcache"].tap do |elasticache|
+
+  elasticache['ey_elastic_memcache_enabled'] = fetch_env_var(node, "EY_ELASTICACHE_MEMCACHE_ENABLED")
+  elasticache['ey_elastic_memcache_url']     = fetch_env_var(node, "EY_ELASTICACHE_MEMCACHE_URL")
+  elasticache['ey_memcache']                 = fetch_env_var(node, "EY_MEMCACHE")
+
+end

custom-cookbooks/elasticache-memcache/metadata.rb

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+name 'elasticache-memcache'
+description 'Configuration of Elasticache Memcache on AWS'
+long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
+maintainer 'Engine Yard'
+maintainer_email '[email protected]'
+version '1.0.1'
+issues_url 'https://github.com/engineyard/ey-cookbooks-stable-v6/issues'
+source_url 'https://github.com/engineyard/ey-cookbooks-stable-v6'

custom-cookbooks/elasticache-memcache/recipes/configure.rb

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+#
+# Cookbook Name:: memcache
+# Recipe:: configure
+#
+
+if node['elasticache-memcache']['ey_elastic_memcache_enabled']
+
+  if node['elasticache-memcache']['ey_memcache']
+    # ERROR both EY_MEMCACHE and ELASTICACHE Enabled
+  end
+
+  if node['elasticache-memcache']['ey_elastic_memcache_url'].nil? || node['elasticache-memcache']['ey_elastic_memcache_url'].empty?
+    # ERROR URL missing
+  end
+
+  if ['solo', 'app', 'app_master', 'util'].include?(node['dna']['instance_role'])
+
+    node['dna']['applications'].each do |app, data|
+      template "/data/#{app}/shared/config/memcached.yml"do
+        source 'memcached.yml.erb'
+        owner node['owner_name']
+        group node['owner_name']
+        mode 0655
+        backup 0
+        variables({
+          'hostname' => node['elasticache-memcache']['ey_elastic_memcache_url'],
+          'environment' => node["dna"]["engineyard"]["environment"]["framework_env"]
+        })
+      end
+    end
+
+  end
+
+end

custom-cookbooks/elasticache-memcache/recipes/default.rb

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+#
+# Cookbook Name:: elasticache-memcache
+#
+
+include_recipe 'elasticache-memcache::configure'

custom-cookbooks/elasticache-memcache/templates/default/memcached.yml.erb

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+defaults:
+  servers:
+    - <%= @hostname %>:11211
+
+<%= @environment %>:
+  servers:
+    - <%= @hostname %>:11211

custom-cookbooks/elasticache-redis/README.md

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+## Optional Cookbook for Engine Yard Cloud
+
+# Elasticache Redis
+
+AWS Elasticache is managed service for Redis. 
+
+## Overview
+
+This cookbook generates configuration file from provided environment variables.
+
+## Installation
+
+### Environment Variables
+
+When the environment variable `EY_ELASTICACHE_REDIS_ENABLED` is set to "true", this recipe will be enabled and setup up Redis configuration file.
+`EY_ELASTICACHE_REDIS_URL` vairable will be used for the URL
+
+
+### Custom Chef
+
+Since this is an optional recipe, it can be installed by simply including it via a `depends` in your `ey-custom/metadata.rb` file and an `include_recipe` in the appropriate hook file. 
+
+## Notes
+
+1. This recipe will put in place a `redis.yml` on `/data/{app_name}/shared/config/`.

custom-cookbooks/elasticache-redis/attributes/default.rb

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+default["elasticache-redis"].tap do |elasticache|
+
+  elasticache['ey_elastic_redis_enabled'] = fetch_env_var(node, "EY_ELASTICACHE_REDIS_ENABLED")
+  elasticache['ey_elastic_redis_url']     = fetch_env_var(node, "EY_ELASTICACHE_REDIS_URL")
+  elasticache['ey_redis']                 = fetch_env_var(node, "EY_REDIS")
+
+end

custom-cookbooks/elasticache-redis/metadata.rb

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+name 'elasticache-redis'
+description 'Configuration of Elasticache Redis on AWS'
+long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
+maintainer 'Engine Yard'
+maintainer_email '[email protected]'
+version '1.0.1'
+issues_url 'https://github.com/engineyard/ey-cookbooks-stable-v6/issues'
+source_url 'https://github.com/engineyard/ey-cookbooks-stable-v6'

custom-cookbooks/elasticache-redis/recipes/configure.rb

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+#
+# Cookbook Name:: redis
+# Recipe:: configure
+#
+
+if node['elasticache-redis']['ey_elastic_redis_enabled']
+
+  if node["elasticache-redis"]['ey_redis']
+    # ERROR both EY_REDIS and ELASTICACHE Enabled
+  end
+
+  if node['elasticache-redis']['ey_elastic_redis_url'].nil? || node['elasticache-redis']['ey_elastic_redis_url'].empty?
+    # ERROR URL missing
+  end
+
+  if ['solo', 'app', 'app_master', 'util'].include?(node['dna']['instance_role'])
+
+    node['dna']['applications'].each do |app, data|
+      template "/data/#{app}/shared/config/redis.yml"do
+        source 'redis.yml.erb'
+        owner node['owner_name']
+        group node['owner_name']
+        mode 0655
+        backup 0
+        variables({
+          'hostname' => node['elasticache-redis']['ey_elastic_redis_url'],
+          'environment' => node["dna"]["engineyard"]["environment"]["framework_env"]
+        })
+      end
+    end
+
+  end
+
+end

custom-cookbooks/elasticache-redis/recipes/default.rb

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+#
+# Cookbook Name:: elasticache-redis
+#
+
+include_recipe 'elasticache-redis::configure'

custom-cookbooks/elasticache-redis/templates/default/redis.yml.erb

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+<%= @environment %>:
+  host: <%= @hostname %>
+  port: 6379