Class: OpenNebula::Group

Inherits:
PoolElement show all
Defined in:
lib/opennebula/group.rb

Constant Summary collapse

GROUP_METHODS =

Constants and Class Methods

{
    :info           => "group.info",
    :allocate       => "group.allocate",
    :update         => "group.update",
    :delete         => "group.delete",
    :quota          => "group.quota",
    :add_admin      => "group.addadmin",
    :del_admin      => "group.deladmin",
}
SELF =

Flag for requesting connected user’s group info

-1
GROUP_DEFAULT_ACLS =

Default resource ACL’s for group users (create)

"VM+IMAGE+TEMPLATE+DOCUMENT+SECGROUP+VROUTER+VMGROUP"
GROUP_ADMIN_SUNSTONE_VIEWS =

The default view for group and group admins, must be defined in sunstone_views.yaml

"groupadmin"

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from PoolElement

#id, #name, new_with_id, #replace, #to_str

Methods inherited from XMLElement

#[], #add_element, #attr, #delete_element, #each, #each_xpath, #element_xml, #has_elements?, #initialize_xml, #name, #retrieve_elements, #retrieve_xmlelements, #set_content, #template_like_str, #template_str, #template_xml, #text, #to_hash, #to_xml, #xml_nil?

Constructor Details

#initialize(xml, client) ⇒ Group

Class constructor



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# File 'lib/opennebula/group.rb', line 64

def initialize(xml, client)
    super(xml,client)
end

Class Method Details

.build_xml(pe_id = nil) ⇒ Object

Creates a Group description with just its identifier this method should be used to create plain Group objects. id the id of the user

Example:

group = Group.new(Group.build_xml(3),rpc_client)



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# File 'lib/opennebula/group.rb', line 53

def Group.build_xml(pe_id=nil)
    if pe_id
        group_xml = "<GROUP><ID>#{pe_id}</ID></GROUP>"
    else
        group_xml = "<GROUP></GROUP>"
    end

    XMLElement.build_xml(group_xml,'GROUP')
end

Instance Method Details

#add_admin(user_id) ⇒ nil, OpenNebula::Error

Adds a User to the Group administrators set

Parameters:

  • user_id (Integer) —

    User ID

Returns:



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# File 'lib/opennebula/group.rb', line 251

def add_admin(user_id)
    return call(GROUP_METHODS[:add_admin], @pe_id, user_id.to_i)
end

#admin_ids ⇒ Object

Returns an array with the numeric admin user ids



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# File 'lib/opennebula/group.rb', line 296

def admin_ids
    ids = self.retrieve_elements("ADMINS/ID")

    return [] if ids.nil?

    return ids.collect! {|x| x.to_i}
end

#allocate(groupname) ⇒ Object

Allocates a new Group in OpenNebula

groupname A string containing the name of the Group.



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# File 'lib/opennebula/group.rb', line 211

def allocate(groupname)
    super(GROUP_METHODS[:allocate], groupname)
end

#contains(uid) ⇒ Object

Returns whether or not the user with id ‘uid’ is part of this group



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# File 'lib/opennebula/group.rb', line 269

def contains(uid)
    #This doesn't work in ruby 1.8.5
    #return self["USERS/ID[.=#{uid}]"] != nil

    id_array = retrieve_elements('USERS/ID')
    return id_array != nil && id_array.include?(uid.to_s)
end

#contains_admin(uid) ⇒ Object

Returns whether or not the user with id ‘uid’ is an admin of this group



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# File 'lib/opennebula/group.rb', line 278

def contains_admin(uid)
    #This doesn't work in ruby 1.8.5
    #return self["ADMINS/ID[.=#{uid}]"] != nil

    id_array = retrieve_elements('ADMINS/ID')
    return id_array != nil && id_array.include?(uid.to_s)
end

#create(group_hash) ⇒ Object

Creates a group based in a group definition hash

group_hash[:name] the group name
group_hash[:group_admin] the admin user definition hash, see def
create_admin_user function description for details.
group_hash[:views] Array of sunstone view names, to be stored
    in SUNSTONE_VIEWS
group_hash[:default_view] Default sunstone view name, to be stored
    in DEFAULT_VIEW
group_hash[:admin_views] Array of sunstone view names, to be stored
    in GROUP_ADMIN_VIEWS
group_hash[:default_admin_view] Default sunstone view name, to be stored
    in DEFAULT_ADMIN_DEFAULT_VIEW



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# File 'lib/opennebula/group.rb', line 93

def create(group_hash)
    # Check arguments
    if !group_hash[:name]
        return OpenNebula::Error.new("Group name not defined")
    end

    if group_hash[:group_admin]
        if group_hash[:group_admin][:name] && !group_hash[:group_admin][:password]
            error_msg = "Admin user password not defined"
            return OpenNebula::Error.new(error_msg)
        end
    end

    # Allocate group
    rc = allocate(group_hash[:name])
    return rc if OpenNebula.is_error?(rc)

    # Set group ACLs to create resources
    rc, msg = create_default_acls(group_hash[:resources])

    if OpenNebula.is_error?(rc)
        delete
        error_msg =  "Error creating group ACL's: #{rc.message}"
        return OpenNebula::Error.new(error_msg)
    end

    # Set group ACLs to share resources
    if group_hash[:shared_resources]
        acls = Array.new
        acls << "@#{id} #{group_hash[:shared_resources]}/@#{id} USE"

        rc, msg = create_group_acls(acls)

        if OpenNebula.is_error?(rc)
            self.delete
            error_msg =  "Error creating group ACL's: #{rc.message}"
            return OpenNebula::Error.new(error_msg)
        end
    end

    # Create associated group admin if needed
    rc = create_admin_user(group_hash)

    if OpenNebula.is_error?(rc)
        delete
        error_msg =  "Error creating admin user: #{rc.message}"
        return OpenNebula::Error.new(error_msg)
    end

    sunstone_attrs = []

    # Add Sunstone views for the group
    if group_hash[:views]
        sunstone_attrs << "VIEWS=\"#{group_hash[:views].join(",")}\""
    end

    if group_hash[:default_view]
        sunstone_attrs << "DEFAULT_VIEW=\"#{group_hash[:default_view]}\""
    end

    # And the admin views
    if group_hash[:admin_views]
        sunstone_attrs << "GROUP_ADMIN_VIEWS=\"#{group_hash[:admin_views].join(",")}\""
    else
        sunstone_attrs << "GROUP_ADMIN_VIEWS=#{GROUP_ADMIN_SUNSTONE_VIEWS}"
    end

    if group_hash[:default_admin_view]
        sunstone_attrs << "GROUP_ADMIN_DEFAULT_VIEW=\"#{group_hash[:default_admin_view]}\""
    else
        sunstone_attrs << "GROUP_ADMIN_DEFAULT_VIEW=#{GROUP_ADMIN_SUNSTONE_VIEWS}"
    end

    do_update = false

    if sunstone_attrs.length > 0
        do_update = true

        update_str = "SUNSTONE=[#{sunstone_attrs.join(",\n")}]\n"
    end

    opennebula_attrs = []

    # Persistency attributes for new images
    if group_hash[:opennebula]
        if group_hash[:opennebula][:default_image_persistent]
            opennebula_attrs << "DEFAULT_IMAGE_PERSISTENT=\""\
                "#{group_hash[:opennebula][:default_image_persistent]}\""
        end

        if group_hash[:opennebula][:default_image_persistent_new]
            opennebula_attrs << "DEFAULT_IMAGE_PERSISTENT_NEW=\""\
                "#{group_hash[:opennebula][:default_image_persistent_new]}\""
        end
    end

    if opennebula_attrs.length > 0
        do_update = true

        update_str += "OPENNEBULA=[#{opennebula_attrs.join(",\n")}]\n"
    end

    if do_update
        rc = update(update_str, true)

        if OpenNebula.is_error?(rc)
            delete
            error_msg =  "Error updating group template: #{rc.message}"
            return OpenNebula::Error.new(error_msg)
        end
    end

    return 0
end

#del_admin(user_id) ⇒ nil, OpenNebula::Error

Removes a User from the Group administrators set

Parameters:

  • user_id (Integer) —

    User ID

Returns:



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# File 'lib/opennebula/group.rb', line 260

def del_admin(user_id)
    return call(GROUP_METHODS[:del_admin], @pe_id, user_id.to_i)
end

#delete ⇒ Object

Deletes the Group



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# File 'lib/opennebula/group.rb', line 228

def delete()
    super(GROUP_METHODS[:delete])
end

#info ⇒ Object Also known as: info!

Retrieves the information of the given Group.



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# File 'lib/opennebula/group.rb', line 74

def info()
    super(GROUP_METHODS[:info], 'GROUP')
end

#set_quota(quota) ⇒ nil, OpenNebula::Error

Sets the group quota limits

Parameters:

  • quota (String) —

    a template (XML or txt) with the new quota limits

Returns:



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# File 'lib/opennebula/group.rb', line 237

def set_quota(quota)
    return Error.new('ID not defined') if !@pe_id

    rc = @client.call(GROUP_METHODS[:quota],@pe_id, quota)
    rc = nil if !OpenNebula.is_error?(rc)

    return rc
end

#update(new_template = nil, append = false) ⇒ nil, OpenNebula::Error

Replaces the template contents

Parameters:

  • new_template (String) (defaults to: nil) —

    New template contents

  • append (true, false) (defaults to: false) —

    True to append new attributes instead of replace the whole template

Returns:



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# File 'lib/opennebula/group.rb', line 223

def update(new_template=nil, append=false)
    super(GROUP_METHODS[:update], new_template, append ? 1 : 0)
end

#user_ids ⇒ Object

Returns an array with the numeric user ids



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# File 'lib/opennebula/group.rb', line 287

def user_ids
    ids = self.retrieve_elements("USERS/ID")

    return [] if ids.nil?

    return ids.collect! {|x| x.to_i}
end