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gcp.go
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gcp.go
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package cloud
import (
"context"
"fmt"
"log"
"os"
"path/filepath"
"strconv"
"time"
compute "cloud.google.com/go/compute/apiv1"
"cloud.google.com/go/compute/apiv1/computepb"
"github.com/Azure/azure-sdk-for-go/sdk/azcore/to"
"github.com/cdalar/onctl/internal/tools"
"github.com/spf13/viper"
"google.golang.org/api/iterator"
)
var (
publicKey []byte
)
type ProviderGcp struct {
Client *compute.InstancesClient
GroupClient *compute.InstanceGroupsClient
}
func (p ProviderGcp) List() (VmList, error) {
log.Println("[DEBUG] List Servers")
cloudList := make([]Vm, 0, 100)
it := p.Client.AggregatedList(context.Background(), &computepb.AggregatedListInstancesRequest{
Project: viper.GetString("gcp.project"),
})
for {
resp, err := it.Next()
if err == iterator.Done {
break
}
if err != nil {
log.Fatalln(err)
}
for _, instance := range resp.Value.Instances {
cloudList = append(cloudList, mapGcpServer(instance))
log.Println("[DEBUG] server name: " + *instance.Name)
}
_ = resp
}
output := VmList{
List: cloudList,
}
return output, nil
}
func (p ProviderGcp) CreateSSHKey(publicKeyFile string) (keyID string, err error) {
publicKey, err = os.ReadFile(publicKeyFile)
if err != nil {
log.Fatalln(err)
}
return
}
func (p ProviderGcp) Destroy(server Vm) error {
log.Println("[DEBUG] Destroy server: ", server)
if server.ID == "" && server.Name != "" {
log.Println("[DEBUG] Server ID is empty")
log.Println("[DEBUG] Server name: " + server.Name)
s, err := p.GetByName(server.Name)
if err != nil || s.ID == "" {
log.Println("[DEBUG] Server not found")
return err
}
log.Println("[DEBUG] Server found ID: " + s.ID)
server.ID = s.ID
}
opt, err := p.Client.Delete(context.Background(), &computepb.DeleteInstanceRequest{
Project: viper.GetString("gcp.project"),
Zone: viper.GetString("gcp.zone"),
Instance: server.Name,
})
if err != nil {
log.Fatalln(err)
}
log.Println("[DEBUG] Operation: ", opt)
return nil
}
func (p ProviderGcp) GetByName(serverName string) (Vm, error) {
log.Println("[DEBUG] Get Server by Name: ", serverName)
server, err := p.Client.Get(context.Background(), &computepb.GetInstanceRequest{
Project: viper.GetString("gcp.project"),
Zone: viper.GetString("gcp.zone"),
Instance: serverName,
})
if err != nil {
log.Fatalln(err)
}
return mapGcpServer(server), nil
}
func (p ProviderGcp) Deploy(server Vm) (Vm, error) {
machineType := fmt.Sprintf("zones/%s/machineTypes/%s", viper.GetString("gcp.zone"), viper.GetString("gcp.type"))
op, err := p.Client.Insert(context.Background(), &computepb.InsertInstanceRequest{
Project: viper.GetString("gcp.project"),
Zone: viper.GetString("gcp.zone"),
InstanceResource: &computepb.Instance{
Name: &server.Name,
MachineType: &machineType,
Metadata: &computepb.Metadata{
Items: []*computepb.Items{
{
Key: to.Ptr("ssh-keys"),
Value: to.Ptr(fmt.Sprintf("%s:%s", viper.GetString("gcp.vm.username"), string(publicKey))),
},
{
Key: to.Ptr("user-data"),
Value: to.Ptr(tools.FileToBase64(server.CloudInitFile)),
},
},
},
Disks: []*computepb.AttachedDisk{
{
AutoDelete: to.Ptr(true),
Boot: to.Ptr(true),
InitializeParams: &computepb.AttachedDiskInitializeParams{
SourceImage: to.Ptr("projects/ubuntu-os-cloud/global/images/ubuntu-2204-jammy-v20240208"),
},
},
},
NetworkInterfaces: []*computepb.NetworkInterface{
{
AccessConfigs: []*computepb.AccessConfig{
{
Name: to.Ptr("External NAT"),
},
},
},
},
},
})
if err != nil {
log.Fatalln(err)
}
err = op.Wait(context.Background())
if err != nil {
log.Fatalln(err)
}
return p.GetByName(server.Name)
}
func (p ProviderGcp) SSHInto(serverName string, port int) {
server, err := p.GetByName(serverName)
if err != nil {
log.Fatalln(err)
}
tools.SSHIntoVM(server.IP, viper.GetString("gcp.vm.username"), port)
}
// mapGcpServer maps a GCP server to a Vm struct
func mapGcpServer(server *computepb.Instance) Vm {
createdAt, err := time.Parse(time.RFC3339, *server.CreationTimestamp)
if err != nil {
log.Fatalln(err)
}
return Vm{
Provider: "gcp",
ID: strconv.FormatUint(server.GetId(), 10),
Name: server.GetName(),
IP: server.GetNetworkInterfaces()[0].GetAccessConfigs()[0].GetNatIP(),
// PrivateIP: server.GetNetworkInterfaces()[0].GetNetworkIP(),
Type: filepath.Base(server.GetMachineType()),
Status: server.GetStatus(),
CreatedAt: createdAt,
Location: filepath.Base(server.GetZone()),
}
}