Although Cloudbreak lets you provision Hadoop clusters in the cloud from Ambari blueprints, Cloudbreak built-in provisioning doesn't contain all possible use cases. For that reason, we introduced recipes.
A recipe is a script extension to a cluster that runs on all nodes before or after the Ambari cluster installation. For example, you can use a recipe to put a JAR file on the Hadoop classpath. Recipes are uploaded and stored in Cloudbreak through the web UI or shell.
The easiest way to create a custom recipe is to:
- Create your own pre and/or post scripts
- Upload them using the web UI or shell
To add recipe via the web UI, in the manage recipes section, choose create new recipe. Next, select either SCRIPT or FILE type plugin and fill in required fields.
To add recipe via shell, use the following command:
recipe create --name [recipe-name] --preInstallScriptFile /path/of/the/pre-install-script --postInstallScriptFile /path/of/the/post-install-script
This command has optional parameters:
--description "string" description of the recipe
--timeout "integer" timeout of the script execution
--publicInAccount "flag" flags if the recipe is public in the account
Sample Recipe for Yum Proxy Setting
We've created a sample recipe that can be used to set proxy for yum:
#!/bin/bash cat >> /etc/yum.conf <<ENDOF proxy=http://10.0.0.133:3128 ENDOF
You can add this recipe to hostgroups:
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