Class: Pvectl::Commands::MigrateVm

Inherits:
Object
  • Object
show all
Includes:
MigrateCommand
Defined in:
lib/pvectl/commands/migrate_vm.rb

Overview

Handler for the ‘pvectl migrate vm` command.

Migrates one or more virtual machines to another cluster node. Always requires –target and confirmation (–yes to skip).

Examples:

Migrate a single VM

pvectl migrate vm 100 --target pve2 --yes

Online migration

pvectl migrate vm 100 --target pve2 --online --yes

Constant Summary collapse

RESOURCE_TYPE = 
:vm
SUPPORTED_RESOURCES = 
%w[vm].freeze

Constants included from MigrateCommand

Pvectl::Commands::MigrateCommand::NODE_NAME_FORMAT

Class Method Summary collapse

Methods included from MigrateCommand

#execute, included, #initialize

Class Method Details

.register(cli) ⇒ void

This method returns an undefined value.

Registers the migrate command with the CLI.

Parameters:

  • cli (GLI::App) —

    the CLI application object



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# File 'lib/pvectl/commands/migrate_vm.rb', line 23

def self.register(cli)
  cli.desc "Migrate a resource to another node"
  cli.long_desc <<~HELP
    Migrate virtual machines or containers between cluster nodes.
    Supports live migration (--online) for zero-downtime moves.

    EXAMPLES
      Offline migration:
        $ pvectl migrate vm 100 --target pve2

      Live migration (zero downtime):
        $ pvectl migrate vm 100 --target pve2 --online

      Migrate a container with restart:
        $ pvectl migrate ct 200 --target pve2 --restart

      Migrate to different storage:
        $ pvectl migrate vm 100 --target pve2 --target-storage local-lvm

      Batch migrate all VMs from a node:
        $ pvectl migrate vm --all --node pve1 --target pve2 --yes

      Migrate VMs matching a selector:
        $ pvectl migrate vm --all -l tags=web --target pve2 --yes

    NOTES
      --online (live migration) requires shared storage or migration
      network configured between nodes.

      Container migration with --restart briefly stops the container,
      migrates, then starts it on the target node.

      --target is required for all migrations.

      Default timeout is 600 seconds. Use --timeout to adjust for
      large VMs with lots of memory/disk.

    SEE ALSO
      pvectl help clone           Clone instead of move
      pvectl help get nodes       List available target nodes
  HELP
  cli.arg_name "RESOURCE_TYPE [ID...]"
  cli.command :migrate do |c|
    c.desc "Target node (required)"
    c.flag [:target, :t], arg_name: "NODE"

    c.desc "Online/live migration"
    c.switch [:online], negatable: false

    c.desc "Restart migration (container only)"
    c.switch [:restart], negatable: false

    c.desc "Target storage mapping"
    c.flag [:"target-storage"], arg_name: "STORAGE"

    c.desc "Select all resources of this type"
    c.switch [:all, :A], negatable: false

    c.desc "Filter by source node"
    c.flag [:node, :n], arg_name: "NODE"

    c.desc "Filter by selector (e.g., status=running,tags=prod)"
    c.flag [:l, :selector], arg_name: "SELECTOR", multiple: true

    c.desc "Skip confirmation prompt"
    c.switch [:yes, :y], negatable: false

    c.desc "Stop on first error"
    c.switch [:"fail-fast"], negatable: false

    c.desc "Wait for migration to complete (sync mode)"
    c.switch [:wait], negatable: false

    c.desc "Timeout in seconds for sync operations (default: 600)"
    c.flag [:timeout], type: Integer, arg_name: "SECONDS"

    c.action do |global_options, options, args|
      resource_type = args.shift

      exit_code = case resource_type
      when "vm"
        Commands::MigrateVm.execute(args, options, global_options)
      when "container", "ct"
        Commands::MigrateContainer.execute(args, options, global_options)
      else
        $stderr.puts "Error: Unknown resource type: #{resource_type}"
        $stderr.puts "Valid types: vm, container, ct"
        ExitCodes::USAGE_ERROR
      end

      exit exit_code if exit_code != 0
    end
  end
end