This library implements every method in the Open Hosting API in the Ruby programming language. It depends on the Faraday HTTP client library, which has the advantage of abstracting various backends. It has a clearly defined interface and works well for small programs and large scale web applications alike.
By default it uses the Patron adapter for maximum compatibility with the reference implementation designed by Elastic Hosts. Patron requires the libcurl native library for high performance and features.
If you wish to use the default Ruby Net::HTTP library, modify the file
lib/connection.rb to read faraday.adapter :default_adapter during connection
initialization. This will eventually be wrapped into some initialization
option.
To get started, install the gem and set a single environment variable in your
shell containing your account's user id and secret key. This information is available through your account Profile under the Authentication tab. Put this into
~/.bashrc to load these automatically.
$ gem install openhosting
$ export OHAUTH=<userid>:<secret key>
From there, establish a connection to the API like so
require 'openhosting'
oh = Openhosting.new
From here, you can pass around the connection to other objects.
drives = OHDrives.new(oh)
drive = OHDrive.new("Foo", "1G")
foo_drive = drives.create drive
The drive API supports advanced methods not available through the web GUI. They are:
"avoid": when set to a list of drive UUIDs, weight the load balancing algorithm to ensure this drive is created on different physical storage than those in the list
"encryption:cipher": Open Hosting drives are transparently encrypted by default. If this value is set to "none" it will bypass the encryption.
The API supports the upload and download of raw data to and from your local disk. This can be used for many things, including the upload of a raw QEMU image to boot into a Virtual Machine. This is also useful for backing up the binary data of a drive that isn't mounted.
servers = OHServers.new(oh)
server = OHServer.new("Foo",true,1500,1024,{"nic:0:dhcp" => "auto", "vnc" => "auto", "password" => "changeme" })
foo_server = servers.create server, false
This will create a persistent server named Foo with no drives attached in the
stopped state. The second required argument to OHServer#new determines if the
server is persistant or not. It should usually be true. The second argument to
OHServers#create determines if the server should be started on creation. This
is also useful for autoscaling setups.
To get it to boot, you'll have to create an an empty drive and use the image method to copy a prebuilt image into it. The following will do that for the Debian 7 prebuilt, using the above new drive creation semantics.
source = "2e4a8cc1-734e-465a-8f27-889baffd4e56"
drives.image foo_drive['drive'], source
drives.info source['drive']
When it's done imaging, you can attach it to the server and start it up.
servers.set foo_server['server'], {"ide:0:0" => foo_drive['drive'], "boot" => "ide:0:0"}
servers.start foo_server['server']
You'll get "imaging" => true and a bunch of other options about it being claimed.
The server API supports more options than available through the GUI control panel. Notably you can set a Virtual Machine to be non-persistant so that it is automatically destroyed when stopped. With this option it is possible to implement auto-scaling infrastructure.
It also gives you the option to influence the load balancing algorithm to determine the physical infrastructure where your servers and drives are located. This can be used for Virtual Machines which are expected to have heavy load, so they are evenly spread out over the physical infrastructure.
You can also set the MAC address of the optional NICs 1 through 3.
resources = OHResources.new(oh)
all_resources = resources.list
The resources are defined by their type. There are only two resource types at the moment, "ip" and "vlan".
Each resource requires a name, though only the vlan resource shows this name through any meaningful interface. It appears that the ip resource automatically assigns a two letter name when an object of this type is created through the web GUI.
Each resource type has extended metadata associated with it. This information is acquired through the "info" verb. An individual resource requires a location that resembles this:
conn.get '/resources/#{type}/#{resource}/info'
Where the resource value is the "resource" key in the output of the
/resources/list method. That means an IP address for the ip type and a UUID
of a vlan for that type. Very confusing!
This library has a full set of tests which operate on mocks and stubs. HTTP request mocks are generated with Webmock. Fixtures are generated with the VCR framework. Unit tests are done with Minitest, which is built into Ruby > 1.8.
The basic test architecture is based on an article by Claudio Ortolina
FAQs
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We found that openhosting demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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