chef-provisioning-opennebula

This is the implementation of the OpenNebula driver for chef-provisioning. It also comes with additional chef resources to manage OpenNebula:

• Template (one_template)
• Image (one_image)
• VNET (one_vnet)
• Lease (one_vnet_lease)
• OneFlow (one_flow_template & one_flow_service)

Setup

In order to use this driver with chef-provisioning the driver URL needs to be specified via environment variable or with_driver directive.

Starting in version 0.3.3 the driver URL has the following format:

opennebula:<endpoint_url>:<profile>

Example:

with_driver "opennebula:http://1.2.3.4:443/api:boggi"

Where boggi profile is stored the profile file. The file will be searched in the following order:

1. ENV['ONE_CONFIG']
2. "#{ENV['HOME']}/.one/one_config"
3. /var/lib/one/.one/one_config

A sample one_config file would look like this:

"boggi": {
  "credentials": "boggi:my_token",
  "options": {
    "timeout": 2,
    "sync": true,
    "http_proxy": "http://my.proxy.com"
  }
},
"testuser": {
  "credentials": "testuser:test_token"
}

To use OneFlow, you also need to specify a with_flow_url directive. This is the API endpoint of your OneFlow.

Example:

with_flow_url "http://gary.1.2.3.4:9876"

In context of OpenNebula machine resource will take the following additional options:

machine_options {
	:bootstrap_options => {
		:template => Hash defining the VM template,
		:template_file => String location of the VM template file,
		:template_name => String name of the OpenNebula template to use
		:template_id => Integer id of the OpenNebula template to use
		:template_options => Hash values to be merged with VM template
		:is_shutdown => [TrueClass, FalseClass] call vm.shutodwn instead of vm.stop during :stop action
		:shutdown_hard => [TrueClass, FalseClass] flag indicating hard or soft shutdown
    :mode => String octed to set permissions to the machine
	},
	:sudo => true,
	:ssh_username => 'local',
	:ssh_gateway => '[email protected]',
	:ssh_options => {
	  Hash containing SSH options as specified by net-ssh gem
	  please see https://github.com/net-ssh/net-ssh for all options
	  Example options:
	  :paranoid => false,
	  :auth_methods => ['publickey'],
	  :keys => [ File.open(File.expand_path('~/.ssh/id_rsa_new')).read ]
	  :keys_only => false,
	  :forward_agent => true,
	  :proxy => 'ssh myproxy.net nc %h %p',
	  :use_agent => true,
	  :user_known_hosts_file => '/dev/null'
	}
  :vm_name => [Symbol, String] Change how the machine shows up in OpenNebula UI and CLI tools.
			       Use :short to rename the machine to the short hostname.
			       Use a string to rename the machine to an arbitrary name.
			       Note this does not change the hostname of the machine, it
			       simply renames the VM in OpenNebula.
  :connection_timeout => [Integer] max wait time to establish connection
}

Resources

one_template

This resource will allow you to create and delete OpenNebula templates.

Attributes

  :template => Hash defining OpenNebula template
  :template_file => String location of the VM template file
  :mode => String octet to set permissions

Actions

  actions :create, :delete, :instantiate
  default_action :create

Examples

1. Create OpenNebula template from file

one_template "my_one_template" do
    template_file "/opt/one/templates/my_template.tpl"
    action :create
end

2. Create OpenNebula template from a template definition

one_template "my_one_template" do
  template  ({
    "HTTPBASE" => "http://my.server.com",
    "MEMORY" => "4096",
    "CPU" => "2",
    "VCPU" => "2",
    "OS" => {
        "ARCH" => "x86_64"
    },
    "DISK" => {
        "IMAGE" => "Ubuntu-12.04.5-pre-prod-20141216",
        "IMAGE_UNAME" => "my_user",
        "DRIVER" => "qcow2"
    },
    "NIC" => {
      "NETWORK" => "my_network",
      "NETWORK_UNAME" => "my_network_user"
    },
    "GRAPHICS" => {
          "LISTEN" => "0.0.0.0",
          "TYPE" => "vnc"
    },
    "CONTEXT" => {
          "NETWORK" => "YES",
          "HOSTNAME" => "$NAME",
          "INSTALL_CHEF_CLIENT_COMMAND" => "dpkg -E -i /mnt/chef-client.deb",
          "SSH_USER" => 'local',
          "SSH_PUBLIC_KEY" => "ssh-rsa blahblahblahpublickey root@my_host",
          "FILES" => "$HTTPBASE/01_chef $HTTPBASE/../chef-client.deb"
    }
  })
  action :create
end

3. Delete an existing template in OpenNebula

one_template "my_one_template" do
    action :delete
end

one_image

This resource will manage images within OpenNebula.

Attributes

  :name => String name of the image to be created or to be used
  :size => Integer size of the image to allocate in MB
  :datastore_id => Integer id of the datastore in OpenNebula to use 
  :type => ['OS', 'CDROM', 'DATABLOCK', 'KERNEL', 'RAMDISK', 'CONTEXT'] type of the image to create
  :description => String description of the image
  :fs_type => String type of the filesystem to create
  :img_driver => String driver type
  :prefix => String prefix
  :persistent => [ TrueClass, FalseClass] flag indicating if the image should be persistent; default: false
  :public => [ TrueClass, FalseClass ] flag indicating if the image is public
  :disk_type => String Image disk type eq. ext3
  :source => String Image source attribute
  :target => String Image target attribute 
  :image_file => String Local path to the qcow image file. Default: Chef::Config[:file_cache_path]
  :image_id => Integer ID of the image to download
  :download_url => String OpenNebula download URL. Default is ENV['ONE_DOWNLOAD']
  :driver => String Image driver eq. 'qcow2'
  :machine_id => [String, Integer] id of the machine (VM) for disk attach
  :disk_id => [String, Integer] id or name of the disk to attach/snapshot
  :mode => String octet to set permissions
  :http_port => Integer port number to start local HTTP server at, for :image_file uploads. Default: 8066

Actions

  actions :allocate, :create, :destroy, :attach, :snapshot, :upload, :download
  default_action :create

Default attribute values ONLY for image :create and :allocate actions
          :type = 'OS' 
          :fs_type = 'ext2'
          :img_driver = 'qcow2'
          :prefix = 'vd'
          :persistent = false

Examples

1. Create a datablock image with size 10Gb.

one_image "bootstrap-img" do
  type "DATABLOCK"
  size 10240
  datastore_id 103
  action :create
end

2. Delete a datablock image with name 'bootstrap-img'

one_image "bootstrap-img" do
  action :destroy
end

3. Attach a datablock image 'bootstrap-img' to a VM (test-vm) and attach it as 'vde' target. 'target' is optional.

one_image "bootstrap-img" do
  machine_id 'test-vm'
  target 'vde'
  action :attach
end

4. Take a persistent snapshot of disk 1 on VM (test-vm) and save it as 'snapshot-img'

one_image "snapshot-img" do
  machine_id "test-vm"
  disk_id 1
  persistent true
  action :snapshot
end

5. Take a persistent snapshot of disk 'bootstrap-img' on VM (test-vm) and save it as 'snapshot-img

one_image "snapshot-img" do
  machine_id "test-vm"
  disk_id "bootstrap-img"
  persistent true
  action :snapshot
end

6. Upload a local qcow2 image file to OpenNebula, starting HTTP server on port 4567

one_image "upload-img" do
  datastore_id 103
  image_file "/local/path/to/qcow/image/file"
  img_driver "qcow2"
  type "OS"
  http_port 4567
  description "This is my cool qcow image"
  action :upload
end

7. Upload a qcow2 image file residing on a different host to OpenNebula

one_image "upload-img" do
  datastore_id 103
  download_url "http://my.image.host/path/to/qcow/image/file"
  action :upload
end

8. Download a 'boggi-test-img' and store it in /home/local/my-image.qcow2. Download URL is read from ENV[ONE_DOWNLOAD] variable. It will be stored locally in Chef::Config[:file_cache_path]/boggi-test-img.qcow2.

one_image "boggi-test-img" do
  action :download
end

9. Download image ID 12345 and store it in /tmp/image.qcow2.

one_image "boggi-test-img" do
  download_url "http://my.opennebula.download.endpoint/"
  image_id 12345
  image_file "/tmp/image.qcow2"
  action :download
end

one_vnet

This resource will allow to create and delete OpenNebula vnets.

Attributes

  :name => String name of the vnet
  :vnet_id => Integer ID of the vnet that is modified
  :network => Integer ID of the vnet from which a new vnet will be reserved
  :size => Integer size of the new vnet
  :ar_id => Integer address range identifier
  :mac_ip => String ip or mac address
  :template_file => String local file containing the template of a new vnet
  :cluster_id => Integer cluster in which to create a vnet
  :mode => String octet to set permissions

Actions

  actions :create, :delete, :reserve
  default_action :reserve

Examples

1. Reserve vnet 'boggi_vnet' from parent vnet 12345 with default size 1

one_vnet "boggi_vnet" do
    network 12345
    action :reserve
end

2. Reserve vnet 'boggi_vnet' from parent vnet 12345 with size 100

one_vnet "boggi_vnet" do
    network 12345
    size 100
    action :reserve
end

3. Create a VNET from template file in cluster 12345. This requires the template file not to have NAME variable populated. The resource will add NAME attribute to the template with the value being the name of the resource.

one_vnet "boggi_vnet" do
    template_file "/tmp/my_vnet.tpl"
    cluster_id 12345
    action :create
end

4. Delete a vnet 'boggi_vnet'. NOTE!!! The vnet cannot have any leases in order to be deleted.

one_vnet "boggi_vnet" do
    action :delete
end

5. Delete vnet by its ID number (12345). NOTE!!! The vnet cannot have any leases in order to be deleted.

one_vnet "boggi_vnet" do
    vnet_id 12345
    action :delete
end

one_vnet_lease

This resource will allow to hold and release leases within OpenNebula vnets.

Attributes

  :name => String ip or mac address to hold/release
  :vnet_id => Integer ID of the vnet that is modified
  :ar_id => Integer address range identifier, where to allocate the address
  :mac_ip => String ip or mac address to hold/release, same as :name

Actions

  actions :hold, :release
  default_action :hold

Examples

1. Hold a lease on a specific IP (1.2.3.4) in 'boggi_vnet' (6789)

one_vnet_lease "1.2.3.4" do
    vnet "boggi_vnet"
    action :hold
end

2. Hold a lease on a specific MAC (00:00:00:00:01) in a specific address range of 'boggi_vnet' (6789). Assuming that vnet 6789 has more than one address range.

one_vnet_lease "00:00:00:00:01" do
    vnet "boggi_vnet"
    ar_id 1
    action :hold
end

3. Release a lease on a specific IP (1.2.3.4) in 'boggi_vnet' (6789). If the IP is already allocated to a VM, that VM must be deleted first, otherwise it will throw an error.

one_vnet_lease "1.2.3.4" do
    vnet "boggi_vnet"
    action :release
end

one_user

This resource will allow to create/delete/update OpenNebula users. Right now it does not have the full functionality as oneuser, but it can add key=value pairs to an existing user so that sensitive data could be stored there.

Attributes

  :name => String ip or mac address to hold/release
  :password => String password
  :user_id => Integer user id
  :template_file => String local template file defining a user 
  :template => Hash with key/value pairs that will be added to the user
  :append => Boolean append to template or overwrite

Actions

  actions :create, :delete, :update
  default_action :update

Examples

1. Create a new user from template file, assuming the current ONE user has the permission to do so.

one_user "boggi" do
    template_file "<local_template_file>"
    action :create
end

2. Delete 'boggi' user, assuming the current ONE user has the permission to do so.

one_user "boggi" do
    action :delete
end

3. Add new key/value pairs to user 'boggi', assuming the current ONE user has the permission to do so.

one_user "boggi" do
    template ({"BOGGI" => "MAGIC"})
    action :update
end

one_flow_template

This resource will allow you to create, delete, and instantiate OneFlow templates.

Attributes

:name => String name of the OneFlow template you are targeting, default is what you put between 'one_flow_template' and 'do'
:template => Hash defining your OneFlow template, or Fixnum ID of a OneFlow template from ONE, or String file location denoted by file://my_template.json or web location denoted by http(s)://1.2.3.4/my_template.json
:template_options => Hash that override-merges into template
:mode => String octet to set permissions, default is '600'

Actions

actions :create, :delete
default_action :create

Examples

1. Create OneFlow template from file with mode 640

one_flow_template "garys_flow_template" do
    template "file:///opt/one/flow_templates/my_template.tpl"
    mode '640'
    action :create
end

Note: If 'name' is not specified in the template file, the template will be named 'garys_flow_template' If you want to get it from a url, you can do any of the following:

template "http://1.2.3.4/my_template.tpl"
template "gary@https://1.2.3.4/my_template.tpl"
template "gary:password@https://1.2.3.4/my_template.tpl"

2. Create OneFlow template from hash

one_flow_template "I can write anything I want here" do
   template  :name => "garys_flow_template",
             :description => "This is my description.",
             :shutdown_action => "shutdown-hard",
             :deployment => "straight",
             :ready_status_gate => true,
             :roles => [
               {
                 :vm_template => 1398, # OR :vm_template => 'name_of_vm_template',
                 :scheduled_policies => [
                   {
                     :type => "CHANGE",
                     :adjust => 1,
                     :start_time => "0 3 1-10 * *"
                   },
                   {
                     :type => "CARDINALITY",
                     :recurrence => "0 4 1-10 * *",
                     :adjust => 2
                   },
                   {
                     :type => "PERCENTAGE_CHANGE",
                     :recurrence => "0 1 1-10 * *",
                     :adjust => 3,
                     :min_adjust_step => 14
                   }
                 ],
                 :max_vms => 4,
                 :cooldown => 15,
                 :elasticity_policies => [
                   {
                     :type => "CHANGE",
                     :cooldown => 17,
                     :period => 15,
                     :adjust => 2,
                     :period_number => 2,
                     :expression => "ATT == 20"
                   },
                   {
                     :type => "CARDINALITY",
                     :cooldown => 14,
                     :period => 13,
                     :adjust => 3,
                     :period_number => 1,
                     :expression => "ATT > 20"
                   },
                   {
                     :type => "PERCENTAGE_CHANGE",
                     :cooldown => 13,
                     :period => 12,
                     :adjust => 1,
                     :period_number => 3,
                     :expression => "ATT < 20",
                     :min_adjust_step => 13
                   }
                 ],
                 :cardinality => 3,
                 :shutdown_action => "shutdown",
                 :name => "gary_role_1",
                 :vm_template_contents => "NIC=[NETWORK_ID=\"$NetConfg1\"]\nNIC=[NETWORK_ID=\"$NetConfg2\"]\n",
                 :min_vms => 2
               }
             ],
             :custom_attrs => {
               :NetConfg2 => "M|vnet_id|another description",
               :NetConfg1 => "M|vnet_id|description for net confg 1"
             }
    action :create
end

Note: This is a template with (nearly) all fields filled out. By no means should you use this template, all the values were entered randomly. Notice that I specified 'name' in my hash. As for vm_template, you can either put the name of a VM template or put its ID. Using ID will be faster. See here for more info: http://docs.opennebula.org/4.14/integration/system_interfaces/appflow_api.html#examples

3. Update OneFlow template from hash (overwrite-merge)

one_flow_template "garys_flow_template" do
  template :deployment => nil, # setting any value to nil will reset it back to default
           :roles => [
             {
               :name => 'delete_this_role',
               :delete_role => nil # specifying this will delete this role
             },
             {
               :name => 'new_role', # assuming new_role does not exist, creates a new role
               :vm_template => 'gary-ubuntu-14.04',
               :cooldown => 8
             },
             {
               :name => 'existing_role', # assuming existing_role exists, updates cooldown to 88 seconds
               :vm_template => 'gary-ubuntu-14.04',
               :cooldown => 88
             }
           ]
  action :update
end

4. Delete a OneFlow template

one_flow_template "garys_flow_template" do
   action :delete
end

5. Change the permissions of a OneFlow template

one_flow_template "garys_flow_template" do
   mode '640'
   action :create
end

one_flow_service

This resource will allow you to create, delete, and instantiate OneFlow templates.

Attributes

:name => String name of the OneFlow service you are targeting, default is what you put between 'one_flow_service' and 'do'
:template => String name or Fixnum ID of the template you want to instantiate
:template_options => Hash that override-merges into template
:mode => String octet to set permissions, default is '600'
:role => String name of the role of a service you are targeting
:period => Integer seconds between each group of actions
:number => Integer number of VMs to apply the action to each period
:cardinality => Integer number of VMs to deploy
:force_scale => Boolean that allows scaling to cardinality above or below templated range
:override_failsafe => Boolean that allows the user to ignore aborts due to untested / partionally implemented code and execute the action anyways, default false

More on override_failsafe: This only affects the actions :hold, :release, and :boot. The reason for this is because I was unable to figure out how to get the my VMs in a state that allows the running of these actions. As such, I was unable to test these actions. Here is the warning you will receive:

Chef::Log.warn('You have chose to use an action that is untested / partially implemented.')
Chef::Log.warn('Specifically, the driver will send the appropriate POST request to the Flow API')
Chef::Log.warn('But the driver will not verify that the action ran successfully, or ran at all.')
Chef::Log.warn('Moreover, the driver will not wait for the action complete, as in, the action will')
Chef::Log.warn('run asynchronously, meaning dependent actions after this one may fail.')
Chef::Log.warn('Use at your own risk. Please report any issues.')

Actions

actions :instantiate, :recover, :delete, :shutdown, 
        :scale, :shutdown_hard, :undeploy, :undeploy_hard, 
        :hold, :release, :stop, :suspend, :resume, :boot, 
        :delete_recreate, :reboot, :reboot_hard, :poweroff, 
        :poweroff_hard, :snapshot_create
default_action :instantiate

Examples

1. Instantiate a service from template

one_flow_service "gary_service" do
    template garys_flow_template # or ID, eg. template 555
    template_options :roles => [
                       {
                         :name => 'random_role',
                         :vm_template => 'gary-ubuntu-14.04',
                         :cooldown => 10
                       }
                     ]
    mode '640'
    action :instantiate
end

2. Recover a service (or delete / shutdown)

one_flow_service "gary_service" do
    action :recover # or :delete / :shutdown
end

3. Change permissions of a service

one_flow_service "I can write anything I want here" do
    name "gary_service"
    mode "640"
    action :instantiate
end

4. Scale a role of a service to have 3 VMs regardless of the min/max VM setting

one_flow_service "gary_service" do
    cardinality 3
    force_scale true # optional, default = false
    role "gary_role"
    action :scale
end

5. Perform a hard poweroff of a role

one_flow_service "gary_service" do
    role "gary_role"
    period 3 # optional
    number 5 # optional
    action :poweroff_hard
end

Note: All actions listed above except for :recover can be performed in the same manner.

Rspec Integration tests

• Create and configure spec/config.rb from spec/config_sample.rb, be sure to read the comments
• From your chef-provisioning-opennebula folder, run:
  • bundle install
  • rspec ./spec/integration/test_all_integration_spec.rb

Development

• Source hosted at GitHub
• Report issues/questions/feature requests on GitHub Issues

Pull requests are very welcome! Make sure your patches are well tested. Ideally create a topic branch for every separate change you make. For example:

1. Fork the repo
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

Authors

Created by Bogdan Buczynski ([email protected])

Maintainers

• Andrew J. Brown ([email protected])
• Bogdan Buczynski ([email protected])
• Dongyu 'Gary' Zheng ([email protected])
• Evgeny Yurchenko ([email protected])
• Phil Oliva ([email protected])

License

Apache 2.0 (see LICENSE)