Module: OpenNebulaHelper

Defined in:
lib/one_helper.rb

Overview

OpenNebulaHelper module provides common methods for CLI helpers

Defined Under Namespace

Classes: OneHelper

Constant Summary collapse

ONE_VERSION = 
<<~EOT
    OpenNebula #{OpenNebula::VERSION}
    Copyright 2002-2026, OpenNebula Project, OpenNebula Systems
EOT
TABLE_CONF_PATH = 
'/etc/one/cli'
VAR_LOCATION = 
'/var/lib/one'
CLI_ADDONS_LOCATION = 
'/usr/lib/one/ruby/cli/addons'
XSD_PATH = 
'/usr/share/one/schemas/xsd'
EDITOR_PATH = 
'/usr/bin/vi'
TEMPLATE_INPUT = 
'A template can be passed as a file with or the content via STDIN
Bash symbols must be escaped on STDIN passing'
XML =

Options

{
    :name  => 'xml',
    :short => '-x',
    :large => '--xml',
    :description => 'Show the resource in xml format'
}
JSON = 
{
    :name => 'json',
    :short => '-j',
    :large => '--json',
    :description => 'Show the resource in JSON format',
    :proc        => lambda do |_, _|
        require 'json'
    end
}
YAML = 
{
    :name => 'yaml',
    :short => '-y',
    :large => '--yaml',
    :description => 'Show the resource in YAML format'
}
NUMERIC = 
{
    :name  => 'numeric',
    :short => '-n',
    :large => '--numeric',
    :description => 'Do not translate user and group IDs'
}
KILOBYTES = 
{
    :name  => 'kilobytes',
    :short => '-k',
    :large => '--kilobytes',
    :description => 'Show units in kilobytes'
}
DESCRIBE = 
{
    :name  => 'describe',
    :large => '--describe',
    :description => 'Describe list columns'
}
APPEND = 
{
    :name => 'append',
    :short => '-a',
    :large => '--append',
    :description => 'Append new attributes to the current template'
}
FILE = 
{
    :name => 'file',
    :short => '-f file',
    :large => '--file file',
    :description => 'Selects the template file',
    :format => String,
    :proc => lambda {|o, options|
        if File.file?(o)
            options[:file] = o
        else
            STDERR.puts "File `#{options[:file]}` doesn't exist"
            exit(-1)
        end
    }
}
TEMPLATE_NAME_VM =

Command line VM template options

{
    :name   => 'name',
    :large  => '--name name',
    :description =>
        'Name for the new VM',
    :format => String
}
DRY = 
{
    :name  => 'dry',
    :large  => '--dry',
    :description => 'Just print the template'
}
CLIENT_OPTIONS = 
[
    {
        :name   => 'user',
        :large  => '--user name',
        :description => 'User name used to connect to OpenNebula',
        :format => String,
        :proc => lambda do |o, _options|
            OneHelper.set_user(o)
            [0, o]
        end
    },
    {
        :name   => 'password',
        :large  => '--password password',
        :description => 'Password to authenticate with OpenNebula',
        :format => String,
        :proc => lambda do |o, _options|
            OneHelper.set_password(o)
            [0, o]
        end
    },
    {
        :name   => 'endpoint',
        :large  => '--endpoint endpoint',
        :description => 'URL of OpenNebula RPC frontend',
        :format => String,
        :proc => lambda do |o, _options|
            OneHelper.set_endpoint(o)
            [0, o]
        end
    },
    {
        :name   => 'grpc',
        :large  => '--grpc',
        :description => 'Use gRPC protocol to connect to OpenNebula'
    }
]
GROUP_OPTIONS = 
[
    {
        :name   => 'name',
        :large  => '--name name',
        :short => '-n',
        :description =>
            'Name for the new group',
        :format => String
    },
    {
        :name   => 'admin_user',
        :large  => '--admin_user name',
        :short => '-u',
        :description =>
            'Creates an admin user for the group with name',
        :format => String
    },
    {
        :name   => 'admin_password',
        :large  => '--admin_password pass',
        :short => '-p',
        :description =>
            'Password for the admin user of the group',
        :format => String
    },
    {
        :name   => 'admin_driver',
        :large  => '--admin_driver driver',
        :short => '-d',
        :description =>
            'Auth driver for the admin user of the group',
        :format => String
    },
    {
        :name   => 'resources',
        :large  => '--resources res_str',
        :short => '-r',
        :description =>
            'Which resources can be created by group users '<<
            '(VM+NET+IMAGE+TEMPLATE by default)',
        :format => Object
    }
]
AS_USER = 
{
    :name   => 'as_uid',
        :large  => '--as_uid uid',
        :format => Integer,
        :description => 'The User ID to instantiate the VM'
}
AS_GROUP = 
{
    :name   => 'as_gid',
        :large  => '--as_gid gid',
        :format => Integer,
        :description => 'The Group ID to instantiate the VM'
}
TEMPLATE_OPTIONS =

NOTE: Other options defined using this array, add new options at the end

[
    {
        :name   => 'cpu',
        :large  => '--cpu cpu',
        :description =>
            "CPU percentage reserved for the VM (1=100% one\n"<<
            ' '*31<<'CPU)',
        :format => Float
    },
    {
        :name   => 'vcpu',
        :large  => '--vcpu vcpu',
        :description =>
            'Number of virtualized CPUs',
        :format => Integer
    },
    {
        :name   => 'arch',
        :large  => '--arch arch',
        :description =>
            'Architecture of the VM, e.g.: i386 or x86_64',
        :format => String
    },
    {
        :name   => 'memory',
        :large  => '--memory memory',
        :description => 'Memory amount given to the VM. By default the '<<
            "unit is megabytes. To use gigabytes add a 'g', floats "<<
            'can be used: 8g=8192, 0.5g=512',
        :format => String,
        :proc   => lambda do |o, _options|
            m=o.strip.match(/^(\d+(?:\.\d+)?)(m|mb|g|gb)?$/i)

            if !m
                [-1, 'Memory value malformed']
            else
                multiplier=case m[2]
                           when /(g|gb)/i
                               1024
                           else
                               1
                           end

                value=m[1].to_f*multiplier

                [0, value.floor]
            end
        end
    },
    {
        :name   => 'disk',
        :large  => '--disk image0,image1',
        :description => 'Disks to attach. To use an image owned by'<<
                        ' other user use user[disk]. Add any additional'<<
                        " attributes separated by ':' and in the shape of"<<
                        ' KEY=VALUE. For example, if the disk must be'<<
                        ' resized, use image0:size=1000 . Or'<<
                        ' image0:size=1000:target=vda,image1:target=vdb',
        :format => Array
    },
    {
        :name   => 'nic',
        :large  => '--nic network0,network1',
        :description => 'Networks to attach. To use a network owned by'<<
                        ' other user use user[network]. Additional'<<
                        ' attributes are supported like with the --disk'<<
                        ' option. Also you can use auto if you want that' <<
                        ' OpenNebula select automatically the network',
        :format => Array
    },
    {
        :name   => 'raw',
        :large  => '--raw string',
        :description => "Raw string to add to the template. Not to be\n"<<
                        ' '*31<<'confused with the RAW attribute',
        :format => String
    },
    {
        :name   => 'vnc',
        :large  => '--vnc',
        :description => 'Add VNC server to the VM'
    },
    {
        :name   => 'vnc_password',
        :large  => '--vnc-password password',
        :format => String,
        :description => 'VNC password'
    },
    {
        :name   => 'vnc_listen',
        :large  => '--vnc-listen ip',
        :format => String,
        :description => 'VNC IP where to listen for connections. '<<
            'By default is 0.0.0.0 (all interfaces).'
    },
    {
        :name   => 'vnc_keymap',
        :large  => '--vnc-keymap keymap',
        :format => String,
        :description => 'VNC keyboard layout'
    },
    {
        :name   => 'spice',
        :large  => '--spice',
        :description => 'Add spice server to the VM'
    },
    {
        :name   => 'spice_password',
        :large  => '--spice-password password',
        :format => String,
        :description => 'spice password'
    },
    {
        :name   => 'spice_listen',
        :large  => '--spice-listen ip',
        :format => String,
        :description => 'spice IP where to listen for connections. '<<
            'By default is 0.0.0.0 (all interfaces).'
    },
    {
        :name   => 'spice_keymap',
        :large  => '--spice-keymap keymap',
        :format => String,
        :description => 'spice keyboard layout'
    },
    {
        :name   => 'ssh',
        :large  => '--ssh [file]',
        :description => "Add an ssh public key to the context. If the \n"<<
            (' '*31) << "file is omited then the user variable \n"<<
            (' '*31) << 'SSH_PUBLIC_KEY will be used.',
        :format => String,
        :proc => lambda do |o, _options|
            if !o
                [0, true]
            else
                [0, o]
            end
        end
    },
    {
        :name   => 'net_context',
        :large  => '--net_context',
        :description => 'Add network contextualization parameters'
    },
    {
        :name   => 'context',
        :large  => '--context line1,line2,line3',
        :format => Array,
        :description => 'Replaces the context section with the specified lines'
    },
    {
        :name   => 'boot',
        :large  => '--boot device_list',
        :description => 'Set boot device list e.g. disk0,disk2,nic0',
        :format => String
    },
    {
        :name   => 'files_ds',
        :large  => '--files_ds file1,file2',
        :format => Array,
        :description => 'Add files to the contextualization CD from the' <<
            'files datastore'
    },
    {
        :name   => 'init',
        :large  => '--init script1,script2',
        :format => Array,
        :description => 'Script or scripts to start in context'
    },
    {
        :name   => 'startscript',
        :large  => '--startscript [file]',
        :format => String,
        :description => 'Start script to be executed'
    },
    {
        :name   => 'report_ready',
        :large  => '--report_ready',
        :description => 'Sends READY=YES to OneGate, useful for OneFlow'
    },
    {
        :name   => 'user_inputs',
        :large  => '--user-inputs ui1,ui2,ui3',
        :format => String,
        :description => 'Specify the user inputs values when instantiating',
        :proc => lambda do |_o, options|
            keys   = options[:user_inputs].scan(/(?:^|,)([^,=]+)=/).flatten
            values = options[:user_inputs].scan(/=(.+?)(?=,[^,]+=|$)/).flatten

            options[:user_inputs_keys] = keys

            options[:user_inputs] = keys.zip(values).map do |k, v|
                %(#{k}="#{v}")
            end.join("\n")
        end
    },
    {
        :name   => 'video',
        :large  => '--video type',
        :format => String,
        :description => 'Add a custom video device (none, vga, cirrus, virtio)'
    },
    {
        :name   => 'video_iommu',
        :large  => '--video-iommu',
        :description => 'Enable IOMMU (I/O Memory Management Unit) for the video device'
    },
    {
        :name   => 'video_ats',
        :large  => '--video-ats',
        :description => 'Enable ATS (Address Translation Services) for the video device'
    },
    {
        :name   => 'video_vram',
        :large  => '--video-vram vram',
        :description => 'VRAM allocated to the video device. By default the ' +
            "unit is megabytes. To use gigabytes add a 'g', floats " +
            'can be used: 8g=8192, 0.5g=512',
        :format => String,
        :proc   => lambda do |o, _options|
            m=o.strip.match(/^(\d+(?:\.\d+)?)(m|mb|g|gb)?$/i)

            if !m
                [-1, 'VRAM value malformed']
            else
                multiplier=case m[2]
                           when /(g|gb)/i
                               1048576 # = 1024 * 1024
                           else
                               1024
                           end

                value=m[1].to_f*multiplier

                [0, value.floor]
            end
        end
    },
    {
        :name   => 'video_resolution',
        :large  => '--video-resolution resolution',
        :format => String,
        :description => 'Video resolution, in format like: 1280x720 or 1920x1080',
        :proc   => lambda do |_o, _options|
            if !m.match?(/\d{3,4}x\d{3,4}/)
                [-1, 'Video Resolution value malformed']
            end
        end
    },
    AS_GROUP,
    AS_USER
]
FORCE = 
{
    :name  => 'force',
    :large  => '--force',
    :description => 'Ignore errors (if possible)'
}
EXTENDED = 
{
    :name => 'extended',
    :large => '--extended',
    :description => 'Show info extended (it only works with xml output)'
}
DECRYPT = 
{
    :name => 'decrypt',
    :large => '--decrypt',
    :description => 'Get decrypted attributes'
}
SCHEDULE_OPTIONS = 
[
    SCHEDULE = {
        :name => 'schedule',
        :large => '--schedule TIME',
        :description => 'Schedules this action to be executed after' \
        'the given time. For example: onevm resume 0 --schedule "09/23 14:15"',
        :format => String,
        :proc => lambda {|o, options|
            if o[0] == '+'
                options[:schedule] = o
            elsif o == 'now'
                options[:schedule] = Time.now.to_i
            else
                begin
                    options[:schedule] = Time.parse(o).to_i
                rescue StandardError
                    STDERR.puts "Error parsing time spec: #{o}"
                    exit(-1)
                end
            end
        }
    },

    WEEKLY = {
        :name => 'weekly',
        :large => '--weekly days',
        :description => 'Repeats the schedule action the days of the week ' \
        'specified, it can be a number between 0 (Sunday) to 6 (Saturday) ' \
        'separated with commas. ' \
        'For example: onevm resume 0 --schedule "09/23 14:15" --weekly 0,2,4',
        :format => String
    },

    MONTHLY = {
        :name => 'monthly',
        :large => '--monthly days',
        :description => 'Repeats the schedule action the days of the month ' \
        'specified, it can be a number between 1,31 separated with commas. ' \
        'For example: onevm resume 0 --schedule "09/23 14:15" --monthly 1,14',
        :format => String
    },

    YEARLY = {
        :name => 'yearly',
        :large => '--yearly days',
        :description => 'Repeats the schedule action the days of the year ' \
        'specified, it can be a number between 0,365 separated with commas. ' \
        'For example: onevm resume 0 --schedule "09/23 14:15" --yearly 30,60',
        :format => String
    },

    HOURLY = {
        :name => 'hourly',
        :large => '--hourly hour',
        :description => 'Repeats the schedule action with the given hourly frequency. ' \
        'For example (every 5 hours): onevm resume 0 --schedule "09/23 14:15" --hourly 5',
        :format => Numeric
    },

    END_TIME = {
        :name => 'end',
        :large => '--end number|TIME',
        :description => '----',
        :format => String
    }
]
TEMPLATE_OPTIONS_VM = 
[TEMPLATE_NAME_VM] + TEMPLATE_OPTIONS + [DRY]
CAPACITY_OPTIONS_VM = 
[TEMPLATE_OPTIONS[0], TEMPLATE_OPTIONS[1],
TEMPLATE_OPTIONS[3]]
UPDATECONF_OPTIONS_VM = 
TEMPLATE_OPTIONS[6..15] + [TEMPLATE_OPTIONS[2],
TEMPLATE_OPTIONS[17], TEMPLATE_OPTIONS[18]]
FORMAT = 
[XML, JSON, YAML]
OPTIONS = 
FORMAT, EXTENDED, NUMERIC, KILOBYTES
BACKUP_MODES = 
['FULL', 'INCREMENT']
BINARY_SUFFIX = 
['K', 'M', 'G', 'T']

Class Method Summary collapse

Class Method Details

.append_template(id, resource, path = nil, xpath = 'TEMPLATE') ⇒ Object 



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# File 'lib/one_helper.rb', line 1738

def self.append_template(id, resource, path = nil, xpath = 'TEMPLATE')
    update_template_helper(true, id, resource, path, xpath)
end

.boolean_to_str(str) ⇒ Object 



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# File 'lib/one_helper.rb', line 1613

def self.boolean_to_str(str)
    if str.to_i == 1
        'Yes'
    else
        'No'
    end
end

.bytes_to_unit(value, unit = 'K') ⇒ Object 



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# File 'lib/one_helper.rb', line 1702

def self.bytes_to_unit(value, unit = 'K')
    j = 0
    i = BINARY_SUFFIX.index(unit).to_i

    while j < i
        value /= 1024.0
        j += 1
    end

    value
end

.cluster_str(str) ⇒ String

If the cluster name is empty, returns a ‘-’ char.

Parameters:

  • str (String || Hash) —

    Cluster name, or empty Hash (when <CLUSTER/>)

Returns:

  • (String) —

    the same Cluster name, or ‘-’ if it is empty



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# File 'lib/one_helper.rb', line 1718

def self.cluster_str(str)
    if !str.nil? && !str.empty?
        str
    else
        '-'
    end
end

.clusters_str(clusters) ⇒ Object 



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# File 'lib/one_helper.rb', line 1726

def self.clusters_str(clusters)
    if clusters.nil?
        '-'
    else
        [clusters].flatten.join(',')
    end
end

.create_ar(options) ⇒ Object 



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# File 'lib/one_helper.rb', line 2045

def self.create_ar(options)
    ar = 'AR = [ '

    if options[:ip]
        if options[:ip6_global] || options[:ip6_ula]
            ar << 'TYPE="IP4_6"'
        elsif options[:ip6]
            ar << 'TYPE="IP4_6_STATIC"'
        else
            ar << 'TYPE="IP4"'
        end
    elsif options[:ip6]
        ar << 'TYPE="IP6_STATIC"'
    elsif options[:ip6_global] || options[:ip6_ula]
        ar << 'TYPE="IP6"'
    else
        ar << 'TYPE="ETHER"'
    end

    if options[:size]
        ar << ', SIZE = ' << options[:size]
    else
        unless options[:ip6]
            STDERR.puts 'Address range needs to specify size (-s size)'
            exit(-1)
        end
    end

    if options[:ip6]
        m = %r{([\h:]*)\/(\d.*)$}.match(options[:ip6])

        if m.nil? || m[1].nil?
            STDERR.puts 'Missing or wrong IP6'
            exit(-1)
        else
            begin
                require 'ipaddr'

                ip = IPAddr.new(m[1])

                if !ip.ipv6?
                    STDERR.puts 'Wrong IP6 format address'
                    exit(-1)
                end
            rescue StandardError
                STDERR.puts 'Wrong IP6 format address'
                exit(-1)
            end

        end

        if m[2].nil?
            STDERR.puts 'IP6 address need to set the prefix length'
            exit(-1)
        end

        ar << ", PREFIX_LENGTH=\"#{m[2]}\""

        options[:ip6] = m[1]
    end

    ar << ', IP = ' << options[:ip] if options[:ip]
    ar << ', IP6 = ' << options[:ip6] if options[:ip6]
    ar << ', MAC = ' << options[:mac] if options[:mac]
    if options[:ip6_global]
        ar << ', GLOBAL_PREFIX = ' << options[:ip6_global]
    end
    if options[:ip6_ula]
        ar << ', ULA_PREFIX = ' << options[:ip6_ula]
    end
    ar << ', GATEWAY = ' << options[:gateway] if options[:gateway]
    ar << ', MASK = '    << options[:netmask] if options[:netmask]
    ar << ', VN_MAD = '  << options[:vn_mad]  if options[:vn_mad]
    ar << ', VLAN_ID = ' << options[:vlanid]  if options[:vlanid]

    ar << ']'
end

.create_context_str(options, context_hash) ⇒ Object 



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# File 'lib/one_helper.rb', line 1895

def self.create_context_str(options, context_hash)
    context_options = [:ssh, :net_context, :context, :init, :files_ds, :startscript,
                       :report_ready]
    if !(options.keys & context_options).empty?
        if options[:ssh]
            if options[:ssh]==true
                context_hash['SSH_PUBLIC_KEY'] = '$USER[SSH_PUBLIC_KEY]'
            else
                begin
                    key=File.read(options[:ssh]).strip
                rescue StandardError => e
                    STDERR.puts e.message
                    exit(-1)
                end
                context_hash['SSH_PUBLIC_KEY'] = key
            end
        end

        if options[:net_context]
            context_hash['NETWORK'] = 'YES'
        end

        if options[:files_ds]
            files = options[:files_ds].map {|file| %($FILE[IMAGE=\\"#{file}\\"]) }.join(' ')

            context_hash['FILES_DS'] = files
        end

        if options[:init]
            context_hash['INIT_SCRIPTS'] = options[:init].join(' ')
        end

        if options[:startscript]
            script = nil
            begin
                script = File.read(options[:startscript]).strip
            rescue StandardError => e
                STDERR.puts e.message
                exit(-1)
            end
            script = Base64.strict_encode64(script)
            context_hash['START_SCRIPT_BASE64'] = script

        end

        if options[:report_ready]
            context_hash['REPORT_READY'] = 'YES'
        end

        if context_hash.any? || options[:context]
            formatted_context = "CONTEXT=[\n"
            formatted_context << options[:context].map {|l|
                ' ' << l
            }.join(",\n") if options[:context]
            if context_hash.any?
                formatted_context << ",\n" if options[:context]
                formatted_context << context_hash.map {|k, v| "  #{k}=\"#{v}\"" }.join(",\n")
            end
            formatted_context << "\n]\n"
            formatted_context
        else
            nil
        end
    else
        nil
    end
end

.create_disk_net(objects, section, name) ⇒ Object 



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# File 'lib/one_helper.rb', line 1843

def self.create_disk_net(objects, section, name)
    template=''

    objects.each do |obj|
        obj, *extra_attributes = obj.split(':')

        # When extra attributes do not contain = character include
        # them in the previous value. Fixes adding MAC addresses. These
        # contain ":" character also used as extra attributes separator.
        #
        # It may be needed to strip the value from start and end quotes
        # as the value could be written as this:
        #
        # --nic 'some_net:mac="00:0A:12:34:56:78"'
        #
        attrs = []
        extra_attributes.each do |str|
            if str.include?('=')
                attrs << str
            else
                attrs.last << ":#{str}"
            end
        end

        extra_attributes = attrs

        res=parse_user_object(obj)
        return [-1, "#{section.capitalize} \"#{obj}\" malformed"] unless res

        user, object=*res

        template<<"#{section.upcase}=[\n"
        if object.downcase == 'auto'
            template<<"  NETWORK_MODE=\"#{object}\"\n"
        else
            template<<"  #{name.upcase}_UNAME=\"#{user}\",\n" if user
            extra_attributes.each do |extra_attribute|
                key, value = extra_attribute.split('=')
                template<<"  #{key.upcase}=\"#{value}\",\n"
            end
            if object.match(/^\d+$/)
                template<<"  #{name.upcase}_ID=#{object}\n"
            else
                template<<"  #{name.upcase}=\"#{object}\"\n"
            end
        end
        template<<"]\n"
    end if objects

    [0, template]
end

.create_template(options, template_obj = nil) ⇒ Object 



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# File 'lib/one_helper.rb', line 1963

def self.create_template(options, template_obj = nil)
    template=''

    template<<"NAME=\"#{options[:name]}\"\n" if options[:name]

    if options[:arch] || options[:boot]
        template<<"OS = [\n"

        lines=[]
        lines<<"  ARCH = \"#{options[:arch]}\"" if options[:arch]
        lines<<"  BOOT = \"#{options[:boot]}\"" if options[:boot]

        template<<lines.join(",\n")

        template << " ]\n"
    end

    template<<"CPU=#{options[:cpu]}\n" if options[:cpu]
    template<<"VCPU=#{options[:vcpu]}\n" if options[:vcpu]
    template<<"MEMORY=#{options[:memory]}\n" if options[:memory]
    template<<"#{options[:raw]}\n" if options[:raw]

    template<<"AS_UID=#{options[:as_uid]}\n" if options[:as_uid]
    template<<"AS_GID=#{options[:as_gid]}\n" if options[:as_gid]

    if options[:disk]
        res=create_disk_net(options[:disk], 'DISK', 'IMAGE')
        return res if res.first!=0

        template<<res.last
    end

    if options[:nic]
        res=create_disk_net(options[:nic], 'NIC', 'NETWORK')
        return res if res.first!=0

        template<<res.last
    end

    if options[:vnc]
        vnc_listen=options[:vnc_listen] || '0.0.0.0'
        template<<"GRAPHICS=[ TYPE=\"vnc\", LISTEN=\"#{vnc_listen}\""
        if options[:vnc_password]
            template << ", PASSWD=\"#{options[:vnc_password]}\""
        end
        if options[:vnc_keymap]
            template << ", KEYMAP=\"#{options[:vnc_keymap]}\""
        end
        template<<' ]' << "\n"
    end

    if options[:spice]
        spice_listen=options[:spice_listen] || '0.0.0.0'
        template<<"GRAPHICS=[ TYPE=\"spice\", LISTEN=\"#{spice_listen}\""
        if options[:spice_password]
            template << ", PASSWD=\"#{options[:spice_password]}\""
        end
        if options[:spice_keymap]
            template << ", KEYMAP=\"#{options[:spice_keymap]}\""
        end
        template<<' ]' << "\n"
    end

    if options[:video]
        template<<"VIDEO=[ TYPE=\"#{options[:video]}\""
        template<<', IOMMU="YES"' if options[:video_iommu]
        template<<', ATS="YES"' if options[:video_ats]
        template<<", VRAM=\"#{options[:video_vram]}\"" if options[:video_vram]
        template<<", RESOLUTION=\"#{options[:video_resolution]}\""
        template<<' ]' << "\n"
    end

    context_hash = {}
    if !template_obj.nil? && template_obj.has_elements?('TEMPLATE/CONTEXT')
        context_hash = template_obj.to_hash['VMTEMPLATE']['TEMPLATE']['CONTEXT']
    end
    context_str=create_context_str(options, context_hash)
    template<<context_str if context_str

    [0, template]
end

.create_template_options_used?(options, conflicting_opts) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/one_helper.rb', line 2123

def self.create_template_options_used?(options, conflicting_opts)
    # Get the template options names as symbols. options hash
    # uses symbols
    template_options=OpenNebulaHelper::TEMPLATE_OPTIONS.map do |o|
        o[:name].to_sym
    end

    # Check if at least one of the template options is in options hash
    conflicting_opts.replace(options.keys & template_options)

    !conflicting_opts.empty?
end

.editor_input(contents = nil) ⇒ Object 



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# File 'lib/one_helper.rb', line 1802

def self.editor_input(contents = nil)
    require 'tempfile'

    tmp = Tempfile.new('one_cli')

    if contents
        tmp << contents
        tmp.flush
    end

    editor_path = ENV['EDITOR'] ? ENV['EDITOR'] : EDITOR_PATH
    system("#{editor_path} #{tmp.path}")

    unless $CHILD_STATUS.exitstatus == 0
        puts 'Editor not defined'
        exit(-1)
    end

    tmp.close

    File.read(tmp.path)
end

.get_plot(x, y, attr, title) ⇒ Object

Returns plot object to print it on the CLI

Parameters:

  • x (Array) —

    Data to x axis (Time axis)

  • y (Array) —

    Data to y axis

  • attr (String) —

    Parameter to y axis

  • title (String) —

    Plot title

Returns:

  • Gnuplot plot object



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# File 'lib/one_helper.rb', line 2355

def self.get_plot(x, y, attr, title)
    # Require gnuplot gem only here
    begin
        require 'gnuplot'
    rescue LoadError
        STDERR.puts(
            'Gnuplot gem is not installed, run `gem install gnuplot` '\
            'to install it'
        )
        exit(-1)
    end

    # Check if gnuplot is installed on the system
    unless system('gnuplot --version')
        STDERR.puts(
            'Gnuplot is not installed, install it depending on your distro'
        )
        exit(-1)
    end

    Gnuplot.open do |gp|
        Gnuplot::Plot.new(gp) do |p|
            p.title title

            p.xlabel 'Time'
            p.ylabel attr

            p.xdata   'time'
            p.timefmt "'%H:%M'"
            p.format  "x '%H:%M'"

            p.style    'data lines'
            p.terminal 'dumb'

            p.data << Gnuplot::DataSet.new([x, y]) do |ds|
                ds.with      = 'linespoints'
                ds.linewidth = '3'
                ds.using     = '1:2'

                ds.notitle
            end
        end
    end
end

.level_lock_to_str(str) ⇒ Object 



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# File 'lib/one_helper.rb', line 2136

def self.level_lock_to_str(str)
    level = str.to_i
    case level
    when 0
        'None'
    when 1
        'Use'
    when 2
        'Manage'
    when 3
        'Admin'
    when 4
        'All'
    else
        '-'
    end
end

.parse_user_inputs(inputs, keys = []) ⇒ Object 



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# File 'lib/one_helper.rb', line 2154

def self.parse_user_inputs(inputs, keys = [])
    unless inputs.keys == keys
        puts 'There are some parameters that require user input. ' \
             'Use the string <<EDITOR>> to launch an editor ' \
             '(e.g. for multi-line inputs)'
    end

    answers = {}

    inputs.each do |key, val|
        next if keys.include? key

        input_cfg = val.split('|', -1)

        if input_cfg.length < 3
            STDERR.puts 'Malformed user input. It should have at least 3 '\
                        "parts separated by '|':"
            STDERR.puts "  #{key}: #{val}"
            exit(-1)
        end

        mandatory, type, description, params, initial = input_cfg
        optional = mandatory.strip == 'O'
        type.strip!
        description.strip!

        if input_cfg.length > 3
            if input_cfg.length != 5
                STDERR.puts 'Malformed user input. It should have 5 parts'\
                            " separated by '|':"
                STDERR.puts "  #{key}: #{val}"
                exit(-1)
            end

            params.strip!
            initial.strip!
        end

        puts "  * (#{key}) #{description}"

        header = '    '
        if !initial.nil? && initial != ''
            header += "Press enter for default (#{initial}). "
        end

        case type
        when 'text', 'text64'
            print header

            answer = STDIN.readline.chop

            if answer == '<<EDITOR>>'
                answer = OpenNebulaHelper.editor_input
            end

            # use default in case it's empty
            answer = initial if answer.empty?

            if type == 'text64'
                answer = Base64.encode64(answer).strip.delete("\n")
            end

        when 'boolean'
            print header

            answer = STDIN.readline.chop

            # use default in case it's empty
            answer = initial if answer.empty?

            unless ['YES', 'NO'].include?(answer)
                STDERR.puts "Invalid boolean '#{answer}'"
                STDERR.puts 'Boolean has to be YES or NO'
                exit(-1)
            end

        when 'password'
            print header

            answer = OpenNebulaHelper::OneHelper.get_password

            # use default in case it's empty
            answer = initial if answer.empty?

        when 'number', 'number-float'
            if type == 'number'
                header += 'Integer: '
                exp = OneTemplateHelper::INT_EXP
            else
                header += 'Float: '
                exp = OneTemplateHelper::FLOAT_EXP
            end

            loop do
                print header
                answer = STDIN.readline.chop

                answer = initial if answer == ''
                noanswer = (answer == '') && optional

                break if noanswer || !(answer =~ exp).nil?
            end

            if noanswer
                next
            end

        when 'range', 'range-float'
            min, max = params.split('..')

            if min.nil? || max.nil?
                STDERR.puts 'Malformed user input. '\
                            "Parameters should be 'min..max':"
                STDERR.puts "  #{key}: #{val}"
                exit(-1)
            end

            if type == 'range'
                exp = OneTemplateHelper::INT_EXP
                min = min.to_i
                max = max.to_i

                header += "Integer in the range [#{min}..#{max}]: "
            else
                exp = OneTemplateHelper::FLOAT_EXP
                min = min.to_f
                max = max.to_f

                header += "Float in the range [#{min}..#{max}]: "
            end

            loop do
                print header
                answer = STDIN.readline.chop

                answer = initial if answer == ''

                noanswer = (answer == '') && optional

                break if noanswer || (!(answer =~ exp).nil? &&
                          answer.to_f >= min && answer.to_f <= max)
            end

            if noanswer
                next
            end

        when 'list'
            options = params.split(',')

            options.each_with_index do |opt, i|
                puts "    #{i}  #{opt}"
            end

            puts

            header += 'Please type the selection number: '

            loop do
                print header
                answer = STDIN.readline.chop

                if answer == ''
                    answer = initial
                else
                    answer = options[answer.to_i]
                end

                noanswer = (answer == '') && optional

                break if noanswer || options.include?(answer)
            end

            if noanswer
                next
            end

        when 'fixed'
            puts "    Fixed value of (#{initial}). Cannot be changed"
            answer = initial

        else
            STDERR.puts 'Wrong type for user input:'
            STDERR.puts "  #{key}: #{val}"
            exit(-1)
        end

        answers[key] = answer
    end

    answers
end

.parse_user_object(user_object) ⇒ Object 



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# File 'lib/one_helper.rb', line 1825

def self.parse_user_object(user_object)
    reg=/^([^\[]+)(?:\[([^\]]+)\])?$/

    m=user_object.match(reg)

    return unless m

    user=nil
    if m[2]
        user=m[1]
        object=m[2]
    else
        object=m[1]
    end

    [user, object]
end

.period_to_str(time, print_seconds = true) ⇒ Object 



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# File 'lib/one_helper.rb', line 1654

def self.period_to_str(time, print_seconds = true)
    seconds=time.to_i
    minutes, seconds=seconds.divmod(60)
    hours, minutes=minutes.divmod(60)
    days, hours=hours.divmod(24)

    if print_seconds
        format('%<days>3dd %<hours>02dh%<minutes>02dm%<seconds>02ds',
               :days => days, :hours => hours, :minutes => minutes, :seconds => seconds)
    else
        format('%<days>3dd %<hours>02dh%<minutes>02dm',
               :days => days, :hours => hours, :minutes => minutes)
    end
end

.read_stdin ⇒ Object 



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# File 'lib/one_helper.rb', line 2600

def self.read_stdin
    if STDIN.wait_readable(0)
        STDIN.read
    else
        ''
    end
end

.rname_to_id(name, poolname) ⇒ Object 



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# File 'lib/one_helper.rb', line 1528

def self.rname_to_id(name, poolname)
    return 0, name.to_i if name.match(/^[0123456789]+$/)

    client=OneHelper.client

    pool = case poolname
           when 'HOST'
               require 'opennebula/host_pool'
               OpenNebula::HostPool.new(client)
           when 'HOOK'
               require 'opennebula/hook_pool'
               OpenNebula::HookPool.new(client)
           when 'GROUP'
               require 'opennebula/group_pool'
               OpenNebula::GroupPool.new(client)
           when 'USER'
               require 'opennebula/user_pool'
               OpenNebula::UserPool.new(client)
           when 'DATASTORE'
               require 'opennebula/datastore_pool'
               OpenNebula::DatastorePool.new(client)
           when 'CLUSTER'
               require 'opennebula/cluster_pool'
               OpenNebula::ClusterPool.new(client)
           when 'VNET'
               require 'opennebula/virtual_network_pool'
               OpenNebula::VirtualNetworkPool.new(client)
           when 'IMAGE'
               require 'opennebula/image_pool'
               OpenNebula::ImagePool.new(client)
           when 'VMTEMPLATE'
               require 'opennebula/template_pool'
               OpenNebula::TemplatePool.new(client)
           when 'VNTEMPLATES'
               require 'opennebula/vntemplate_pool'
               OpenNebula::VNTemplatePool.new(client)
           when 'VM'
               require 'opennebula/virtual_machine_pool'
               OpenNebula::VirtualMachinePool.new(client)
           when 'ZONE'
               require 'opennebula/zone_pool'
               OpenNebula::ZonePool.new(client)
           when 'MARKETPLACE'
               require 'opennebula/marketplace_pool'
               OpenNebula::MarketPlacePool.new(client)
           when 'FLOWTEMPLATES'
               OpenNebula::ServiceTemplatePool.new(client)
           end

    rc = pool.info
    if OpenNebula.is_error?(rc)
        return -1, "OpenNebula #{poolname} name not found," <<
                   ' use the ID instead'
    end

    OneHelper.name_to_id(name, pool, poolname)
end

.rname_to_id_desc(poolname) ⇒ Object 



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# File 'lib/one_helper.rb', line 1609

def self.rname_to_id_desc(poolname)
    "OpenNebula #{poolname} id"
end

.schedule_action_tmpl(options, action, warning = nil) ⇒ Object 



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# File 'lib/one_helper.rb', line 2451

def self.schedule_action_tmpl(options, action, warning = nil)
    str_periodic = ''

    if options.key?(:weekly)
        str_periodic << ", REPEAT = 0, DAYS = \"#{options[:weekly]}\""
    elsif options.key?(:monthly)
        str_periodic << ", REPEAT = 1, DAYS = \"#{options[:monthly]}\""
    elsif options.key?(:yearly)
        str_periodic << ", REPEAT = 2, DAYS = \"#{options[:yearly]}\""
    elsif options.key?(:hourly)
        str_periodic << ", REPEAT = 3, DAYS = \"#{options[:hourly]}\""
    end

    if options.key?(:end)
        begin
            end_date = Date.parse(options[:end])
            str_periodic << ", END_TYPE = 2, END_VALUE = #{end_date.to_time.to_i}"
        rescue ArgumentError
            if options[:end].to_i > 0
                str_periodic << ", END_TYPE = 1, END_VALUE = #{options[:end].to_i}"
            end
        end
    elsif str_periodic != ''
        str_periodic << ', END_TYPE = 0'
    end

    tmp_str = 'SCHED_ACTION = ['
    tmp_str << "ACTION  = #{action}, " if action
    tmp_str << "WARNING = #{warning}," if warning
    tmp_str << "ARGS    = \"#{options[:args]}\"," if options[:args]
    tmp_str << "TIME    = #{options[:schedule]}"
    tmp_str << str_periodic << ']'

    tmp_str
end

.scheduled_action_table(object) ⇒ Object 



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# File 'lib/one_helper.rb', line 2487

def self.scheduled_action_table(object)
    CLIHelper::ShowTable.new(nil, object) do
        column :ID, '', :adjust => true do |d|
            warn = d['WARNING'].to_i

            prefix = ''
            prefix = '*' if d['DONE'].to_i <= 0 && warn != 0 && warn < Time.now.to_i

            prefix + d['ID']
        end

        column :ACTION, '', :adjust => true do |d|
            d['ACTION']
        end

        column :ARGS, '', :adjust => true do |d|
            d['ARGS'] && !d['ARGS'].empty? ? d['ARGS'] : '-'
        end

        column :SCHEDULED, '', :adjust => true do |d|
            t = d['TIME'].to_i

            # relative action for VMs
            if d['TIME'] !~ /^[0-9].*/ && !object['STIME'].nil?
                t += object['STIME'].to_i
            end

            OpenNebulaHelper.time_to_str(t, false) unless d.nil?
        end

        column :REPEAT, '', :adjust => true do |d|
            begin
                str_rep = ''

                case d['REPEAT']
                when '0'
                    str_rep << 'Weekly '
                when '1'
                    str_rep << 'Monthly '
                when '2'
                    str_rep << 'Yearly '
                when '3'
                    str_rep << 'Each ' << d['DAYS'] << ' hours'
                end

                if d['REPEAT'] != '3'
                    str_rep << d['DAYS']
                end

                str_rep
            rescue StandardError
                ''
            end
        end

        column :END, '', :adjust => true do |d|
            begin
                str_end = ''

                case d['END_TYPE']
                when '0'
                    str_end << 'None'
                when '1'
                    str_end << 'After ' << d['END_VALUE'] << ' times'
                when '2'
                    str_end << 'On ' << \
                        OpenNebulaHelper.time_to_str(d['END_VALUE'], false, false, true)
                end

                str_end
            rescue StandardError
                ''
            end
        end

        column :STATUS, '', :left, :size => 50 do |d|
            begin
                if d['DONE'].to_i > 0 && d['REPEAT'].to_i < 0
                    "Done on #{OpenNebulaHelper.time_to_str(d['DONE'], false)}"
                elsif d['MESSAGE'] && !d['MESSAGE'].empty?
                    "Error! #{d['MESSAGE']}"
                else
                    t1 = Time.now
                    t2 = d['TIME'].to_i

                    # relative action for VMs
                    if (d['TIME'] !~ /^[0-9].*/) && !object['STIME'].nil?
                        t2 += object['STIME'].to_i
                    end

                    t2 = Time.at(t2)

                    days    = ((t2 - t1) / (24 * 3600)).round(2)
                    hours   = ((t2 - t1) / 3600).round(2)
                    minutes = ((t2 - t1) / 60).round(2)

                    if days > 1
                        "Next in #{days} days"
                    elsif days <= 1 && hours > 1
                        "Next in #{hours} hours"
                    elsif minutes > 0
                        "Next in #{minutes} minutes"
                    else
                        'Overdue!'
                    end
                end
            rescue StandardError
                ''
            end
        end
    end
end

.short_period_to_str(time, print_seconds = true) ⇒ Object 



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# File 'lib/one_helper.rb', line 1669

def self.short_period_to_str(time, print_seconds = true)
    seconds=time.to_i
    minutes, seconds=seconds.divmod(60)
    hours, minutes=minutes.divmod(60)

    if print_seconds
        format('%<hours>3dh%<minutes>02dm%<seconds>02ds',
               :hours => hours, :minutes => minutes, :seconds => seconds)
    else
        format('%<hours>3dh%<minutes>02dm', :hours => hours, :minutes => minutes)
    end
end

.size_in_mb(size) ⇒ Object 



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# File 'lib/one_helper.rb', line 1586

def self.size_in_mb(size)
    m = size.match(/^(\d+(?:\.\d+)?)(t|tb|m|mb|g|gb)?$/i)

    if !m
        # return OpenNebula::Error.new('Size value malformed')
        [-1, 'Size value malformed']
    else
        multiplier=case m[2]
                   when /(t|tb)/i
                       1024*1024
                   when /(g|gb)/i
                       1024
                   else
                       1
                   end

        value=m[1].to_f*multiplier

        # return value.ceil
        [0, value.ceil]
    end
end

.time_to_str(time, print_seconds = true, print_hours = true, print_years = false) ⇒ Object 



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# File 'lib/one_helper.rb', line 1621

def self.time_to_str(time, print_seconds = true,
                     print_hours = true, print_years = false)
    value = time.to_i

    if value==0
        value='-'
    else
        if print_hours
            if print_seconds
                if print_years
                    value=Time.at(value).strftime('%m/%d/%y %H:%M:%S')
                else
                    value=Time.at(value).strftime('%m/%d %H:%M:%S')
                end
            else
                if print_years
                    value=Time.at(value).strftime('%m/%d/%y %H:%M')
                else
                    value=Time.at(value).strftime('%m/%d %H:%M')
                end
            end
        else
            if print_years
                value=Time.at(value).strftime('%m/%d/%y')
            else
                value=Time.at(value).strftime('%m/%d')
            end
        end
    end

    value
end

.to_octet(perm) ⇒ String

Convert u=rwx,g=rx,o=r to octet

Parameters:

  • perm (String) —

    Permissions in human readbale format

Returns:

  • (String) —

    Permissions in octet format



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# File 'lib/one_helper.rb', line 2405

def self.to_octet(perm)
    begin
        Integer(perm)
        perm
    rescue StandardError
        perm = perm.split(',')
        ret  = 0

        perm.each do |p|
            p = p.split('=')

            next unless p.size == 2

            r = p[1].count('r')
            w = p[1].count('w')
            x = p[1].count('x')

            rwx = (2 ** 0) * x + (2 ** 1) * w + (2 ** 2) * r

            case p[0]
            when 'u'
                ret += rwx * 100
            when 'g'
                ret += rwx * 10
            else
                ret += rwx * 1
            end
        end

        if ret == 0
            STDERR.puts 'Error in permissions format'
            exit(-1)
        else
            ret = ret.to_s

            if ret.size == 1
                "00#{ret}"
            elsif ret.size == 2
                "0#{ret}"
            else
                ret
            end
        end
    end
end

.unit_to_str(value, options, unit = 'K') ⇒ Object 



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# File 'lib/one_helper.rb', line 1684

def self.unit_to_str(value, options, unit = 'K')
    if options[:kilobytes]
        value
    else
        i = BINARY_SUFFIX.index(unit).to_i

        while value > 1024 && i < 3
            value /= 1024.0
            i += 1
        end

        value = (value * 10).round / 10.0

        value = value.to_i if value - value.round == 0
        value.to_s + BINARY_SUFFIX[i]
    end
end

.update_obj(obj, file, plain = false) ⇒ Object 



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# File 'lib/one_helper.rb', line 1765

def self.update_obj(obj, file, plain = false)
    rc = obj.info(true)

    return rc if OpenNebula.is_error?(rc)

    if file
        path = file
    else
        tmp  = Tempfile.new(obj['ID'])
        path = tmp.path

        tmp.write(yield(obj)) if block_given?
        tmp.flush

        if ENV['EDITOR']
            editor_path = ENV['EDITOR']
        else
            editor_path = EDITOR_PATH
        end

        system("#{editor_path} #{path}")

        unless $CHILD_STATUS.exitstatus.zero?
            STDERR.puts 'Editor not defined'
            exit(-1)
        end

        tmp.close
    end

    if plain
        obj.update(File.read(path), plain)
    else
        obj.update(File.read(path))
    end
end

.update_template(id, resource, path = nil, xpath = 'TEMPLATE') ⇒ Object 



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# File 'lib/one_helper.rb', line 1734

def self.update_template(id, resource, path = nil, xpath = 'TEMPLATE')
    update_template_helper(false, id, resource, path, xpath)
end

.update_template_helper(append, _id, resource, path, xpath, update = true) ⇒ Object

rubocop:disable Metrics/ParameterLists



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# File 'lib/one_helper.rb', line 1743

def self.update_template_helper(append, _id, resource, path, xpath, update = true)
    # rubocop:enable Metrics/ParameterLists
    if path
        File.read(path)
    elsif !(stdin = read_stdin).empty?
        stdin
    elsif append
        editor_input
    else
        if update
            rc = resource.info

            if OpenNebula.is_error?(rc)
                puts rc.message
                exit(-1)
            end
        end

        editor_input(resource.template_like_str(xpath))
    end
end