forked from Cloud-Foundations/Dominator
/
listHypervisors.go
53 lines (49 loc) · 1.37 KB
/
listHypervisors.go
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package main
import (
"fmt"
"sort"
"strings"
"github.com/Cloud-Foundations/Dominator/lib/errors"
"github.com/Cloud-Foundations/Dominator/lib/log"
proto "github.com/Cloud-Foundations/Dominator/proto/fleetmanager"
)
func listHypervisorsSubcommand(args []string, logger log.DebugLogger) error {
if err := listHypervisors(logger); err != nil {
return fmt.Errorf("error listing Hypervisors: %s", err)
}
return nil
}
func listHypervisors(logger log.DebugLogger) error {
fleetManager := fmt.Sprintf("%s:%d",
*fleetManagerHostname, *fleetManagerPortNum)
client, err := dialFleetManager(fleetManager)
if err != nil {
return err
}
defer client.Close()
request := proto.ListHypervisorsInLocationRequest{
IncludeUnhealthy: *includeUnhealthy,
Location: *location,
SubnetId: *subnetId,
}
var reply proto.ListHypervisorsInLocationResponse
err = client.RequestReply("FleetManager.ListHypervisorsInLocation",
request, &reply)
if err != nil {
return err
}
if err := errors.New(reply.Error); err != nil {
return err
}
hypervisors := make([]string, 0, len(reply.HypervisorAddresses))
for _, address := range reply.HypervisorAddresses {
hypervisors = append(hypervisors, strings.Split(address, ":")[0])
}
sort.Strings(hypervisors)
for _, hypervisor := range hypervisors {
if _, err := fmt.Println(hypervisor); err != nil {
return err
}
}
return nil
}