85 lines
2.3 KiB
Ruby
85 lines
2.3 KiB
Ruby
module L4dServer
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class Launcher
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def self.spawn(server)
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new(server).spawn
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end
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def self.cleanup(server)
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new(server).cleanup
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end
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def initialize(server)
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@server = server
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@template = server.server_template
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end
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def spawn
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setup_directories
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generate_config
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mount_overlayfs
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generate_systemd_unit
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enable_and_start_service
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rescue StandardError => e
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Rails.logger.error("Failed to spawn server: #{e.message}")
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Rails.logger.error(e.backtrace.join("\n"))
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@server.update(status: :failed)
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raise
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end
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def cleanup
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unmount_overlayfs
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cleanup_directories
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end
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private
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def setup_directories
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server_dir = L4dServer::Config.server_path(@server.id)
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FileUtils.mkdir_p("#{server_dir}/upper")
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FileUtils.mkdir_p("#{server_dir}/work")
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FileUtils.mkdir_p("#{server_dir}/merged")
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end
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def generate_config
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ConfigGenerator.generate(@server)
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end
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def mount_overlayfs
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server_dir = L4dServer::Config.server_path(@server.id)
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overlays = @template.template_overlays.ordered.map { |to| L4dServer::Config.overlay_path(to.overlay.slug) }.join(":")
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lower_dirs = "#{overlays}:#{L4dServer::Config.installation_path}"
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mount_cmd = "fuse-overlayfs -o lowerdir=#{lower_dirs},upperdir=#{server_dir}/upper,workdir=#{server_dir}/work #{server_dir}/merged"
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success = system(mount_cmd)
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raise "Failed to mount overlayfs" unless success
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end
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def generate_systemd_unit
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SystemdManager.new(@server).create_unit_file
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end
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def enable_and_start_service
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SystemdManager.new(@server).enable_and_start
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@server.update(status: :starting)
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end
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def unmount_overlayfs
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server_dir = L4dServer::Config.server_path(@server.id)
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merged = "#{server_dir}/merged"
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if Dir.exist?(merged)
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system("mountpoint -q #{merged} && umount #{merged}")
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end
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rescue StandardError => e
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Rails.logger.warn("Failed to unmount overlayfs: #{e.message}")
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end
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def cleanup_directories
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server_dir = L4dServer::Config.server_path(@server.id)
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FileUtils.rm_rf(server_dir) if Dir.exist?(server_dir)
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rescue StandardError => e
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Rails.logger.warn("Failed to cleanup directories: #{e.message}")
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end
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end
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end
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