@Provides
@Named("installChefGems")
@Singleton
Statement installChefGems(BootstrapProperties bootstrapProperties) {
InstallRubyGems installRubyGems = InstallRubyGems.builder()
.version(bootstrapProperties.gemSystemVersion().orNull())
.updateSystem(bootstrapProperties.updateGemSystem(), bootstrapProperties.gemSystemVersion().orNull())
.updateExistingGems(bootstrapProperties.updateGems()) //
.build();