我可以在Heroku上使用Amazon Elasticache吗？ [英] Can I use Amazon Elasticache on Heroku?

问题描述

我目前在Rails 3应用程序中使用Heroku的Memcached，并希望转移到Elasticache，因为定价更有利。这可能吗？配置相对简单吗？有什么我应该注意的表现？

I am currently using Heroku's Memcached in a Rails 3 app and would like to move over to Elasticache because the pricing is much more favorable. Is this possible? Is the configuration relatively straightforward? Is there anything that I should be aware of as regards the performance?

推荐答案

注意：虽然这可行， btucker指出，它允许任何Heroku托管的应用程序访问您的ElastiCache集群。我不建议使用此解决方案。

是的，您可以。该设置与Heroku在 Amazon RDS 上的指南类似。不同的步骤如下所示：

Yes you can. The setup is similar to the guide Heroku has on Amazon RDS. The steps that differ go like this:

1. 按照 Amazon ElastiCache入门指南创建缓存集群和节点的指南
   
2. 安装 ElastiCache命令行工具包



3. 允许Heroku的服务器进入ElastiCache群集就像RDS指南解释的一样，用 elasticache - ones替换 rds - 命令：

1. Follow the "Get Started with Amazon ElastiCache" guide to create a cache cluster and node
2. Install the ElastiCache Command Line Toolkit

3. Allow Heroku's servers ingress to your ElastiCache cluster like the RDS guide explains but replace the rds- commands with elasticache- ones:

elasticache-authorize-cache-security-group-ingress \
  --cache-security-group-name default \ 
  --ec2-security-group-name default \
  --ec2-security-group-owner-id 098166147350 \

  # If your AWS_CREDENTIAL_FILE environment setting is configured,
  # this option is not necessary.
  --aws-credential-file ../credential-file-path.template

使用群集的主机名为产品应用程序设置Heroku配置值：

Set a Heroku config value for your production app with your cluster's hostname:

heroku config:set MEMCACHE_SERVERS=elasticachehostname.amazonaws.com

然后，按照 Memcache Rails安装程序，然后设置好。

After that, follow the Memcache Rails setup, and you're set.

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