如何使用json覆盖在Chef Cookbook中安装Java 7

Question

I have a web server role in my chef recipe like so

name "webserver"

'nginx' => {
   'port' => "80"
},
'java' => {
   'openjdk_version' => 7
}

Berksfile

cookbook "java"

I am trying to install java 7 - cannot seem to find a example of doing this inside a json override.

Current error is ERROR: Option version must be a kind of [String, Array]! You passed 8.

Thanks

Answer 1

You do not need to override anything if you're using a role, just set the openjdk_version attribute as part of the default_attributes section of the role. That attribute is set to nil in the cookbook's attributes/default.rb so you only need to set it by following Chef's normal order of precedence .

Example (JSON):

{
  "name": "webserver",
  "default_attributes": {
    "nginx": {
        "port": "80"
    },
    "java": {
      "openjdk_version": "7"
    }
  }
}

Same thing using the Ruby DSL:

name "webserver"
default_attributes => {
  "nginx" => {
    "port" => "80"
  },
  "java" => {
    "openjdk_version" => "7"
  }
}

If you're using a wrapper cookbook of some kind, you could also set the attribute via that cookbook's attributes file(s), eg: default[:java][:openjdk_version] = "7"

This ERROR: Option version must be a kind of [String, Array]! You passed 8. ERROR: Option version must be a kind of [String, Array]! You passed 8. error you're getting is because you're setting the attribute as an integer, not a string. If you look at the cookbook's code , you can see where the version option is called. I've honestly never used that option but it sounds like it wants a string, and the examples support that notion (see the Chef docs for the package resource -- I can't post the link because I already have too many links in this post).

As for using Berkshelf, keep in mind Berkshelf is for resolving dependencies and making your life easier when it comes to managing said dependencies and uploading them to your node or your Chef server. It's not used for setting Chef attributes.

I hope this helps!