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79 lines
3.5 KiB
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79 lines
3.5 KiB
Plaintext
= RbVmomi
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== Introduction
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RbVmomi is a Ruby interface to the vSphere API. Like the Perl and Java SDKs,
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you can use it to manage ESX and VirtualCenter servers. The current release
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supports the vSphere 5.0 API. RbVmomi specific documentation is
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online[http://rdoc.info/github/rlane/rbvmomi/master/frames] and is meant to
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be used alongside the official documentation[http://www.vmware.com/support/developer/vc-sdk/visdk41pubs/ApiReference/index.html].
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== Installation
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gem install rbvmomi
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== Usage
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A simple example of turning on a VM:
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require 'rbvmomi'
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vim = RbVmomi::VIM.connect host: 'foo', user: 'bar', password: 'baz'
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dc = vim.serviceInstance.find_datacenter("mydatacenter") or fail "datacenter not found"
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vm = dc.find_vm("myvm") or fail "VM not found"
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vm.PowerOnVM_Task.wait_for_completion
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This code uses several RbVmomi extensions to the vSphere API for concision. The
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expanded snippet below uses only standard API calls and should be familiar to
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users of the Java SDK:
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require 'rbvmomi'
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vim = RbVmomi::VIM.connect host: 'foo', user: 'bar', password: 'baz'
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rootFolder = vim.serviceInstance.content.rootFolder
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dc = rootFolder.childEntity.grep(RbVmomi::VIM::Datacenter).find { |x| x.name == "mydatacenter" } or fail "datacenter not found"
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vm = dc.vmFolder.childEntity.grep(RbVmomi::VIM::VirtualMachine).find { |x| x.name == "myvm" } or fail "VM not found"
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task = vm.PowerOnVM_Task
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filter = vim.propertyCollector.CreateFilter(
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spec: {
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propSet: [{ type: 'Task', all: false, pathSet: ['info.state']}],
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objectSet: [{ obj: task }]
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},
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partialUpdates: false
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)
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ver = ''
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while true
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result = vim.propertyCollector.WaitForUpdates(version: ver)
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ver = result.version
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break if ['success', 'error'].member? task.info.state
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end
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filter.DestroyPropertyFilter
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raise task.info.error if task.info.state == 'error'
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As you can see, the extensions RbVmomi adds can dramatically decrease the code
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needed to perform simple tasks while still letting you use the full power of
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the API when necessary. RbVmomi extensions are often more efficient than a
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naive implementation; for example, the find_vm method on VIM::Datacenter used
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in the first example uses the SearchIndex for fast lookups.
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A few important points:
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* All class, method, parameter, and property names match the official documentation[http://www.vmware.com/support/developer/vc-sdk/visdk41pubs/ApiReference/index.html].
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* Properties are exposed as accessor methods.
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* Data object types can usually be inferred from context, so you may use a hash instead.
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* Enumeration values are simply strings.
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* Example code is included in the examples/ directory.
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* A set of helper methods for Trollop is included to speed up development of
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command line apps. See the included examples for usage.
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* If you don't have trusted SSL certificates installed on the host you're
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connecting to, you'll get an +OpenSSL::SSL::SSLError+ "certificate verify failed".
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You can work around this by using the +:insecure+ option to +RbVmomi::VIM.connect+.
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* This is a side project of a VMware employee and is entirely unsupported by VMware.
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Built-in extensions are under +lib/rbvmomi/vim/+. You are encouraged to
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reopen VIM classes in your applications and add extensions of your own. If you
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write something generally useful please send it to me and I'll add it in.
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== Development
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Fork the project on Github and send me a merge request, or send a patch to
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rlane@vmware.com. RbVmomi developers hang out in #rbvmomi on Freenode.
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