本文整理汇总了Golang中github.com/juju/juju/environs.StartInstanceParams.CleanupCallback方法的典型用法代码示例。如果您正苦于以下问题：Golang StartInstanceParams.CleanupCallback方法的具体用法？Golang StartInstanceParams.CleanupCallback怎么用？Golang StartInstanceParams.CleanupCallback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类github.com/juju/juju/environs.StartInstanceParams的用法示例。
在下文中一共展示了StartInstanceParams.CleanupCallback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: newRawInstance
// newRawInstance is where the new physical instance is actually
// provisioned, relative to the provided args and spec. Info for that
// low-level instance is returned.
func (env *environ) newRawInstance(args environs.StartInstanceParams) (*lxdclient.Instance, error) {
hostname, err := env.namespace.Hostname(args.InstanceConfig.MachineId)
if err != nil {
return nil, errors.Trace(err)
}
// Note: other providers have the ImageMetadata already read for them
// and passed in as args.ImageMetadata. However, lxd provider doesn't
// use datatype: image-ids, it uses datatype: image-download, and we
// don't have a registered cloud/region.
imageSources, err := env.getImageSources()
if err != nil {
return nil, errors.Trace(err)
}
series := args.InstanceConfig.Series
// TODO(jam): We should get this information from EnsureImageExists, or
// something given to us from 'raw', not assume it ourselves.
image := "ubuntu-" + series
// TODO: support args.Constraints.Arch, we'll want to map from
// Keep track of StatusCallback output so we may clean up later.
// This is implemented here, close to where the StatusCallback calls
// are made, instead of at a higher level in the package, so as not to
// assume that all providers will have the same need to be implemented
// in the same way.
longestMsg := 0
statusCallback := func(currentStatus status.Status, msg string) {
if args.StatusCallback != nil {
args.StatusCallback(currentStatus, msg, nil)
}
if len(msg) > longestMsg {
longestMsg = len(msg)
}
}
cleanupCallback := func() {
if args.CleanupCallback != nil {
args.CleanupCallback(strings.Repeat(" ", longestMsg))
}
}
defer cleanupCallback()
imageCallback := func(copyProgress string) {
statusCallback(status.Allocating, copyProgress)
}
if err := env.raw.EnsureImageExists(series, imageSources, imageCallback); err != nil {
return nil, errors.Trace(err)
}
cleanupCallback() // Clean out any long line of completed download status
cloudcfg, err := cloudinit.New(series)
if err != nil {
return nil, errors.Trace(err)
}
var certificateFingerprint string
if args.InstanceConfig.Controller != nil {
// For controller machines, generate a certificate pair and write
// them to the instance's disk in a well-defined location, along
// with the server's certificate.
certPEM, keyPEM, err := lxdshared.GenerateMemCert(true)
if err != nil {
return nil, errors.Trace(err)
}
cert := lxdclient.NewCert(certPEM, keyPEM)
cert.Name = hostname
// We record the certificate's fingerprint in metadata, so we can
// remove the certificate along with the instance.
certificateFingerprint, err = cert.Fingerprint()
if err != nil {
return nil, errors.Trace(err)
}
if err := env.raw.AddCert(cert); err != nil {
return nil, errors.Annotatef(err, "adding certificate %q", cert.Name)
}
serverState, err := env.raw.ServerStatus()
if err != nil {
return nil, errors.Annotate(err, "getting server status")
}
cloudcfg.AddRunTextFile(clientCertPath, string(certPEM), 0600)
cloudcfg.AddRunTextFile(clientKeyPath, string(keyPEM), 0600)
cloudcfg.AddRunTextFile(serverCertPath, serverState.Environment.Certificate, 0600)
}
cloudcfg.SetAttr("hostname", hostname)
cloudcfg.SetAttr("manage_etc_hosts", true)
metadata, err := getMetadata(cloudcfg, args)
if err != nil {
return nil, errors.Trace(err)
}
if certificateFingerprint != "" {
metadata[metadataKeyCertificateFingerprint] = certificateFingerprint
}
//.........这里部分代码省略.........