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Golang BootstrapContext.InterruptNotify方法代码示例

本文整理汇总了Golang中github.com/juju/juju/environs.BootstrapContext.InterruptNotify方法的典型用法代码示例。如果您正苦于以下问题:Golang BootstrapContext.InterruptNotify方法的具体用法?Golang BootstrapContext.InterruptNotify怎么用?Golang BootstrapContext.InterruptNotify使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/juju/juju/environs.BootstrapContext的用法示例。


在下文中一共展示了BootstrapContext.InterruptNotify方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: UploadTools

// UploadTools uploads tools for the specified series and any other relevant series to
// the environment storage, after which it sets the agent-version. If forceVersion is true,
// we allow uploading even when the agent-version is already set in the environment.
func UploadTools(ctx environs.BootstrapContext, env environs.Environ, toolsArch *string, forceVersion bool, bootstrapSeries ...string) error {
	logger.Infof("checking that upload is possible")
	// Check the series are valid.
	for _, series := range bootstrapSeries {
		if _, err := ubuntu.SeriesVersion(series); err != nil {
			return err
		}
	}
	// See that we are allowed to upload the tools.
	if err := validateUploadAllowed(env, toolsArch, forceVersion); err != nil {
		return err
	}

	// Make storage interruptible.
	interrupted := make(chan os.Signal, 1)
	interruptStorage := make(chan struct{})
	ctx.InterruptNotify(interrupted)
	defer ctx.StopInterruptNotify(interrupted)
	defer close(interrupted)
	go func() {
		defer close(interruptStorage) // closing interrupts all uploads
		if _, ok := <-interrupted; ok {
			ctx.Infof("cancelling tools upload")
		}
	}()
	stor := newInterruptibleStorage(env.Storage(), interruptStorage)

	cfg := env.Config()
	explicitVersion := uploadVersion(version.Current.Number, nil)
	uploadSeries := SeriesToUpload(cfg, bootstrapSeries)
	ctx.Infof("uploading tools for series %s", uploadSeries)
	tools, err := sync.Upload(stor, &explicitVersion, uploadSeries...)
	if err != nil {
		return err
	}
	cfg, err = cfg.Apply(map[string]interface{}{
		"agent-version": tools.Version.Number.String(),
	})
	if err == nil {
		err = env.SetConfig(cfg)
	}
	if err != nil {
		return fmt.Errorf("failed to update environment configuration: %v", err)
	}
	return nil
}
开发者ID:rogpeppe,项目名称:juju,代码行数:49,代码来源:synctools.go


注:本文中的github.com/juju/juju/environs.BootstrapContext.InterruptNotify方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。