func newAPI() (*gceAPI, error) {
client, err := serviceaccount.NewClient(&serviceaccount.Options{})
if err != nil {
return nil, fmt.Errorf("error creating client: %v", err)
}
cs, err := compute.New(client)
if err != nil {
return nil, fmt.Errorf("error creating compute service: %v", err)
}
networkName, err := networkFromMetadata()
if err != nil {
return nil, fmt.Errorf("error getting network metadata: %v", err)
}
prj, err := projectFromMetadata()
if err != nil {
return nil, fmt.Errorf("error getting project: %v", err)
}
instanceName, err := instanceNameFromMetadata()
if err != nil {
return nil, fmt.Errorf("error getting instance name: %v", err)
}
instanceZone, err := instanceZoneFromMetadata()
if err != nil {
return nil, fmt.Errorf("error getting instance zone: %v", err)
}
gn, err := cs.Networks.Get(prj, networkName).Do()
if err != nil {
return nil, fmt.Errorf("error getting network from compute service: %v", err)
}
gi, err := cs.Instances.Get(prj, instanceZone, instanceName).Do()
if err != nil {
return nil, fmt.Errorf("error getting instance from compute service: %v", err)
}
return &gceAPI{
project: prj,
computeService: cs,
gceNetwork: gn,
gceInstance: gi,
}, nil
}
func (g *GCEBackend) RegisterNetwork(ctx context.Context, network string, config *subnet.Config) (*backend.SubnetDef, error) {
attrs := subnet.LeaseAttrs{
PublicIP: g.publicIP,
}
l, err := g.sm.AcquireLease(ctx, network, &attrs)
switch err {
case nil:
g.lease = l
case context.Canceled, context.DeadlineExceeded:
return nil, err
default:
return nil, fmt.Errorf("failed to acquire lease: %v", err)
}
client, err := serviceaccount.NewClient(&serviceaccount.Options{})
if err != nil {
return nil, fmt.Errorf("error creating client: %v", err)
}
g.computeService, err = compute.New(client)
if err != nil {
return nil, fmt.Errorf("error creating compute service: %v", err)
}
networkName, err := networkFromMetadata()
if err != nil {
return nil, fmt.Errorf("error getting network metadata: %v", err)
}
g.project, err = projectFromMetadata()
if err != nil {
return nil, fmt.Errorf("error getting project: %v", err)
}
instanceName, err := instanceNameFromMetadata()
if err != nil {
return nil, fmt.Errorf("error getting instance name: %v", err)
}
instanceZone, err := instanceZoneFromMetadata()
if err != nil {
return nil, fmt.Errorf("error getting instance zone: %v", err)
}
g.gceNetwork, err = g.computeService.Networks.Get(g.project, networkName).Do()
if err != nil {
return nil, fmt.Errorf("error getting network from compute service: %v", err)
}
g.gceInstance, err = g.computeService.Instances.Get(g.project, instanceZone, instanceName).Do()
if err != nil {
return nil, fmt.Errorf("error getting instance from compute service: %v", err)
}
found, err := g.handleMatchingRoute(l.Subnet.String())
if err != nil {
return nil, fmt.Errorf("error handling matching route: %v", err)
}
if !found {
operation, err := g.insertRoute(l.Subnet.String())
if err != nil {
return nil, fmt.Errorf("error inserting route: %v", err)
}
err = g.pollOperationStatus(operation.Name)
if err != nil {
return nil, fmt.Errorf("insert operaiton failed: ", err)
}
}
return &backend.SubnetDef{
Lease: l,
MTU: g.mtu,
}, nil
}