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https://github.com/edgelesssys/constellation.git
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bd63aa3c6b
sed -i '1i/*\nCopyright (c) Edgeless Systems GmbH\n\nSPDX-License-Identifier: AGPL-3.0-only\n*/\n' `grep -rL --include='*.go' 'DO NOT EDIT'` gofumpt -w .
150 lines
4.6 KiB
Go
150 lines
4.6 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package client
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import (
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"context"
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"fmt"
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computepb "google.golang.org/genproto/googleapis/cloud/compute/v1"
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"google.golang.org/protobuf/proto"
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)
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// GetNodeImage returns the image name of the node.
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func (c *Client) GetNodeImage(ctx context.Context, providerID string) (string, error) {
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project, zone, instanceName, err := splitProviderID(providerID)
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if err != nil {
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return "", err
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}
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project, err = c.canonicalProjectID(ctx, project)
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if err != nil {
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return "", err
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}
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instance, err := c.instanceAPI.Get(ctx, &computepb.GetInstanceRequest{
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Instance: instanceName,
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Project: project,
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Zone: zone,
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})
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if err != nil {
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return "", err
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}
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// first disk is always the boot disk
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if len(instance.Disks) < 1 {
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return "", fmt.Errorf("instance %v has no disks", instanceName)
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}
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if instance.Disks[0] == nil || instance.Disks[0].Source == nil {
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return "", fmt.Errorf("instance %q has invalid disk", instanceName)
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}
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diskReq, err := diskSourceToDiskReq(*instance.Disks[0].Source)
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if err != nil {
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return "", err
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}
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disk, err := c.diskAPI.Get(ctx, diskReq)
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if err != nil {
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return "", err
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}
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if disk.SourceImage == nil {
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return "", fmt.Errorf("disk %q has no source image", diskReq.Disk)
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}
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return uriNormalize(*disk.SourceImage), nil
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}
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// GetScalingGroupID returns the scaling group ID of the node.
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func (c *Client) GetScalingGroupID(ctx context.Context, providerID string) (string, error) {
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project, zone, instanceName, err := splitProviderID(providerID)
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if err != nil {
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return "", err
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}
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instance, err := c.instanceAPI.Get(ctx, &computepb.GetInstanceRequest{
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Instance: instanceName,
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Project: project,
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Zone: zone,
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})
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if err != nil {
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return "", fmt.Errorf("getting instance %q: %w", instanceName, err)
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}
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scalingGroupID := getMetadataByKey(instance.Metadata, "created-by")
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if scalingGroupID == "" {
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return "", fmt.Errorf("instance %q has no created-by metadata", instanceName)
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}
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scalingGroupID, err = c.canonicalInstanceGroupID(ctx, scalingGroupID)
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if err != nil {
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return "", err
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}
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return scalingGroupID, nil
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}
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// CreateNode creates a node in the specified scaling group.
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func (c *Client) CreateNode(ctx context.Context, scalingGroupID string) (nodeName, providerID string, err error) {
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project, zone, instanceGroupName, err := splitInstanceGroupID(scalingGroupID)
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if err != nil {
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return "", "", err
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}
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project, err = c.canonicalProjectID(ctx, project)
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if err != nil {
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return "", "", err
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}
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instanceGroupManager, err := c.instanceGroupManagersAPI.Get(ctx, &computepb.GetInstanceGroupManagerRequest{
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InstanceGroupManager: instanceGroupName,
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Project: project,
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Zone: zone,
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})
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if err != nil {
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return "", "", err
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}
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if instanceGroupManager.BaseInstanceName == nil {
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return "", "", fmt.Errorf("instance group manager %q has no base instance name", instanceGroupName)
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}
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instanceName := generateInstanceName(*instanceGroupManager.BaseInstanceName, c.prng)
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op, err := c.instanceGroupManagersAPI.CreateInstances(ctx, &computepb.CreateInstancesInstanceGroupManagerRequest{
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InstanceGroupManager: instanceGroupName,
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Project: project,
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Zone: zone,
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InstanceGroupManagersCreateInstancesRequestResource: &computepb.InstanceGroupManagersCreateInstancesRequest{
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Instances: []*computepb.PerInstanceConfig{
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{Name: proto.String(instanceName)},
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},
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},
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})
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if err != nil {
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return "", "", err
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}
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if err := op.Wait(ctx); err != nil {
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return "", "", err
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}
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return instanceName, joinProviderID(project, zone, instanceName), nil
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}
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// DeleteNode deletes a node specified by its provider ID.
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func (c *Client) DeleteNode(ctx context.Context, providerID string) error {
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_, zone, instanceName, err := splitProviderID(providerID)
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if err != nil {
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return err
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}
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scalingGroupID, err := c.GetScalingGroupID(ctx, providerID)
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if err != nil {
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return err
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}
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instanceGroupProject, instanceGroupZone, instanceGroupName, err := splitInstanceGroupID(scalingGroupID)
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if err != nil {
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return err
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}
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instanceID := joinInstanceID(zone, instanceName)
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op, err := c.instanceGroupManagersAPI.DeleteInstances(ctx, &computepb.DeleteInstancesInstanceGroupManagerRequest{
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InstanceGroupManager: instanceGroupName,
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Project: instanceGroupProject,
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Zone: instanceGroupZone,
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InstanceGroupManagersDeleteInstancesRequestResource: &computepb.InstanceGroupManagersDeleteInstancesRequest{
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Instances: []string{instanceID},
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},
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})
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if err != nil {
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return fmt.Errorf("deleting instance %q from instance group manager %q: %w", instanceID, scalingGroupID, err)
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}
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return op.Wait(ctx)
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}
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