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extra_mem_without_helper.go
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/
extra_mem_without_helper.go
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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package snippets
// [START compute_custom_machine_type_extra_mem_no_helper]
import (
"context"
"fmt"
"io"
compute "cloud.google.com/go/compute/apiv1"
computepb "cloud.google.com/go/compute/apiv1/computepb"
"google.golang.org/protobuf/proto"
)
// createInstanceWithExtraMemWithoutHelper сreates new VM instances with extra memory
// without using a CustomMachineType struct.
func createInstanceWithExtraMemWithoutHelper(
w io.Writer,
projectID, zone, instanceName, cpuSeries string,
coreCount, memory int,
) error {
// projectID := "your_project_id"
// zone := "europe-central2-b"
// instanceName := "your_instance_name"
// cpuSeries := "N1"
// coreCount := 2 // number of CPU cores you want to use.
// memory := 256 // the amount of memory for the VM instance, in megabytes.
// The coreCount and memory values are not validated anywhere and can be rejected by the API.
ctx := context.Background()
instancesClient, err := compute.NewInstancesRESTClient(ctx)
if err != nil {
return fmt.Errorf("NewInstancesRESTClient: %w", err)
}
defer instancesClient.Close()
mt := fmt.Sprintf("zones/%s/machineTypes/%v-%v-%v-ext", zone, cpuSeries, coreCount, memory)
inst := &computepb.Instance{
Name: proto.String(instanceName),
Disks: []*computepb.AttachedDisk{
{
InitializeParams: &computepb.AttachedDiskInitializeParams{
DiskSizeGb: proto.Int64(10),
SourceImage: proto.String(
"projects/debian-cloud/global/images/family/debian-12",
),
},
AutoDelete: proto.Bool(true),
Boot: proto.Bool(true),
},
},
MachineType: proto.String(mt),
NetworkInterfaces: []*computepb.NetworkInterface{
{
Name: proto.String("global/networks/default"),
},
},
}
req := &computepb.InsertInstanceRequest{
Project: projectID,
Zone: zone,
InstanceResource: inst,
}
op, err := instancesClient.Insert(ctx, req)
if err != nil {
return fmt.Errorf("unable to create instance: %w", err)
}
if err = op.Wait(ctx); err != nil {
return fmt.Errorf("unable to wait for the operation: %w", err)
}
fmt.Fprintf(w, "Instance created\n")
return nil
}
// [END compute_custom_machine_type_extra_mem_no_helper]