// newGCECloud creates a new instance of GCECloud.
func newGCECloud() (*GCECloud, error) {
projectID, zone, err := getProjectAndZone()
if err != nil {
return nil, err
}
// TODO: if we want to use this on a machine that doesn't have the http://metadata server
// e.g. on a user's machine (not VM) somewhere, we need to have an alternative for
// instance id lookup.
instanceID, err := getInstanceID()
if err != nil {
return nil, err
}
client, err := serviceaccount.NewClient(&serviceaccount.Options{})
if err != nil {
return nil, err
}
svc, err := compute.New(client)
if err != nil {
return nil, err
}
return &GCECloud{
service: svc,
projectID: projectID,
zone: zone,
instanceID: instanceID,
}, nil
}
// Updates the network mask with the real on from the cloud config.
func updateIPNet(ipnet *net.IPNet) error {
// Retrieve the configuration ids
projectId, err := fetchProjectId()
if err != nil {
return err
}
networkId, err := fetchNetworkId()
if err != nil {
return err
}
// Create a service account connection to the GCE API
client, err := serviceaccount.NewClient(&serviceaccount.Options{})
if err != nil {
return err
}
gce, err := compute.New(client)
if err != nil {
return err
}
// Fetch the network configurations and update the netmask
network, err := gce.Networks.Get(projectId, networkId).Do()
if err != nil {
return err
}
_, ipn, err := net.ParseCIDR(network.IPv4Range)
if err != nil {
return err
}
ipnet.Mask = ipn.Mask
return nil
}
func NewGCECloud() (*GCECloud, error) {
projectID, zone, err := getProjectAndZone()
if err != nil {
return nil, err
}
client, err := serviceaccount.NewClient(&serviceaccount.Options{})
if err != nil {
return nil, err
}
svc, err := compute.New(client)
if err != nil {
return nil, err
}
return &GCECloud{
service: svc,
projectID: projectID,
zone: zone,
}, nil
}
// NewImageProcessor constructs an imageProcessor which listens for input on the provided channel
// and logs to stderr with its name as the prefix.
func NewImageProcessor(c <-chan processImageReq, name string) *imageProcessor {
client, err := serviceaccount.NewClient(&serviceaccount.Options{
Transport: &RetryTransport{http.DefaultTransport, 5},
})
if err != nil {
log.Panicf("Failed to create service account client: %v\n", err)
}
service, err := storage.New(client)
if err != nil {
log.Panicf("Failed to create GCS client: %v\n", err)
}
return &imageProcessor{
c: c,
client: client,
s: service,
l: log.New(os.Stderr, name, log.LstdFlags),
}
}