mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-12-18 12:24:32 -05:00
318 lines
12 KiB
Go
318 lines
12 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 cloudcmd
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import (
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"context"
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"fmt"
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"io"
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"net/url"
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"os"
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"regexp"
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"runtime"
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"strings"
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"github.com/edgelesssys/constellation/v2/cli/internal/clusterid"
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"github.com/edgelesssys/constellation/v2/cli/internal/libvirt"
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"github.com/edgelesssys/constellation/v2/cli/internal/terraform"
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"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
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"github.com/edgelesssys/constellation/v2/internal/config"
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"github.com/edgelesssys/constellation/v2/internal/constants"
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)
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// Creator creates cloud resources.
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type Creator struct {
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out io.Writer
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newTerraformClient func(ctx context.Context) (terraformClient, error)
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newLibvirtRunner func() libvirtRunner
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}
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// NewCreator creates a new creator.
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func NewCreator(out io.Writer) *Creator {
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return &Creator{
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out: out,
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newTerraformClient: func(ctx context.Context) (terraformClient, error) {
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return terraform.New(ctx, constants.TerraformWorkingDir)
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},
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newLibvirtRunner: func() libvirtRunner {
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return libvirt.New()
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},
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}
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}
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// Create creates the handed amount of instances and all the needed resources.
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// TODO: Upon changing this function, please refactor it to reduce the number of arguments to <= 5.
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//
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//revive:disable-next-line
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func (c *Creator) Create(ctx context.Context, provider cloudprovider.Provider, config *config.Config, name, insType string, controlPlaneCount, workerCount int,
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) (clusterid.File, error) {
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switch provider {
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case cloudprovider.AWS:
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cl, err := c.newTerraformClient(ctx)
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if err != nil {
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return clusterid.File{}, err
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}
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defer cl.RemoveInstaller()
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return c.createAWS(ctx, cl, config, name, insType, controlPlaneCount, workerCount)
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case cloudprovider.GCP:
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cl, err := c.newTerraformClient(ctx)
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if err != nil {
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return clusterid.File{}, err
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}
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defer cl.RemoveInstaller()
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return c.createGCP(ctx, cl, config, name, insType, controlPlaneCount, workerCount)
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case cloudprovider.Azure:
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cl, err := c.newTerraformClient(ctx)
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if err != nil {
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return clusterid.File{}, err
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}
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defer cl.RemoveInstaller()
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return c.createAzure(ctx, cl, config, name, insType, controlPlaneCount, workerCount)
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case cloudprovider.QEMU:
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if runtime.GOARCH != "amd64" || runtime.GOOS != "linux" {
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return clusterid.File{}, fmt.Errorf("creation of a QEMU based Constellation is not supported for %s/%s", runtime.GOOS, runtime.GOARCH)
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}
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cl, err := c.newTerraformClient(ctx)
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if err != nil {
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return clusterid.File{}, err
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}
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defer cl.RemoveInstaller()
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lv := c.newLibvirtRunner()
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return c.createQEMU(ctx, cl, lv, name, config, controlPlaneCount, workerCount)
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default:
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return clusterid.File{}, fmt.Errorf("unsupported cloud provider: %s", provider)
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}
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}
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// TODO: Upon changing this function, please refactor it to reduce the number of arguments to <= 5.
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//
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//revive:disable-next-line
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func (c *Creator) createAWS(ctx context.Context, cl terraformClient, config *config.Config,
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name, insType string, controlPlaneCount, workerCount int,
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) (idFile clusterid.File, retErr error) {
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vars := terraform.AWSVariables{
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CommonVariables: terraform.CommonVariables{
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Name: name,
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CountControlPlanes: controlPlaneCount,
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CountWorkers: workerCount,
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StateDiskSizeGB: config.StateDiskSizeGB,
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},
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StateDiskType: config.Provider.AWS.StateDiskType,
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Region: config.Provider.AWS.Region,
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Zone: config.Provider.AWS.Zone,
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InstanceType: insType,
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AMIImageID: config.Provider.AWS.Image,
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IAMProfileControlPlane: config.Provider.AWS.IAMProfileControlPlane,
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IAMProfileWorkerNodes: config.Provider.AWS.IAMProfileWorkerNodes,
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Debug: config.IsDebugCluster(),
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}
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if err := cl.PrepareWorkspace(cloudprovider.AWS, &vars); err != nil {
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return clusterid.File{}, err
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}
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defer rollbackOnError(context.Background(), c.out, &retErr, &rollbackerTerraform{client: cl})
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ip, err := cl.CreateCluster(ctx)
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if err != nil {
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return clusterid.File{}, err
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}
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return clusterid.File{
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CloudProvider: cloudprovider.AWS,
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IP: ip,
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}, nil
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}
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// TODO: Upon changing this function, please refactor it to reduce the number of arguments to <= 5.
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//
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//revive:disable-next-line
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func (c *Creator) createGCP(ctx context.Context, cl terraformClient, config *config.Config,
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name, insType string, controlPlaneCount, workerCount int,
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) (idFile clusterid.File, retErr error) {
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vars := terraform.GCPVariables{
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CommonVariables: terraform.CommonVariables{
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Name: name,
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CountControlPlanes: controlPlaneCount,
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CountWorkers: workerCount,
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StateDiskSizeGB: config.StateDiskSizeGB,
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},
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Project: config.Provider.GCP.Project,
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Region: config.Provider.GCP.Region,
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Zone: config.Provider.GCP.Zone,
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CredentialsFile: config.Provider.GCP.ServiceAccountKeyPath,
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InstanceType: insType,
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StateDiskType: config.Provider.GCP.StateDiskType,
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ImageID: config.Provider.GCP.Image,
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Debug: config.IsDebugCluster(),
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}
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if err := cl.PrepareWorkspace(cloudprovider.GCP, &vars); err != nil {
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return clusterid.File{}, err
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}
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defer rollbackOnError(context.Background(), c.out, &retErr, &rollbackerTerraform{client: cl})
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ip, err := cl.CreateCluster(ctx)
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if err != nil {
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return clusterid.File{}, err
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}
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return clusterid.File{
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CloudProvider: cloudprovider.GCP,
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IP: ip,
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}, nil
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}
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// TODO: Upon changing this function, please refactor it to reduce the number of arguments to <= 5.
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//
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//revive:disable-next-line
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func (c *Creator) createAzure(ctx context.Context, cl terraformClient, config *config.Config,
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name, insType string, controlPlaneCount, workerCount int,
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) (idFile clusterid.File, retErr error) {
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vars := terraform.AzureVariables{
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CommonVariables: terraform.CommonVariables{
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Name: name,
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CountControlPlanes: controlPlaneCount,
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CountWorkers: workerCount,
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StateDiskSizeGB: config.StateDiskSizeGB,
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},
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Location: config.Provider.Azure.Location,
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ResourceGroup: config.Provider.Azure.ResourceGroup,
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UserAssignedIdentity: config.Provider.Azure.UserAssignedIdentity,
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InstanceType: insType,
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StateDiskType: config.Provider.Azure.StateDiskType,
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ImageID: config.Provider.Azure.Image,
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ConfidentialVM: *config.Provider.Azure.ConfidentialVM,
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SecureBoot: *config.Provider.Azure.SecureBoot,
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Debug: config.IsDebugCluster(),
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}
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vars = normalizeAzureURIs(vars)
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if err := cl.PrepareWorkspace(cloudprovider.Azure, &vars); err != nil {
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return clusterid.File{}, err
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}
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defer rollbackOnError(context.Background(), c.out, &retErr, &rollbackerTerraform{client: cl})
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ip, err := cl.CreateCluster(ctx)
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if err != nil {
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return clusterid.File{}, err
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}
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return clusterid.File{
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CloudProvider: cloudprovider.Azure,
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IP: ip,
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}, nil
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}
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// The azurerm Terraform provider enforces its own convention of case sensitivity for Azure URIs which Azure's API itself does not enforce or, even worse, actually returns.
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// Let's go loco with case insensitive Regexp here and fix the user input here to be compliant with this arbitrary design decision.
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var (
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caseInsensitiveSubscriptionsRegexp = regexp.MustCompile(`(?i)\/subscriptions\/`)
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caseInsensitiveResourceGroupRegexp = regexp.MustCompile(`(?i)\/resourcegroups\/`)
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caseInsensitiveProvidersRegexp = regexp.MustCompile(`(?i)\/providers\/`)
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caseInsensitiveUserAssignedIdentitiesRegexp = regexp.MustCompile(`(?i)\/userassignedidentities\/`)
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caseInsensitiveMicrosoftManagedIdentity = regexp.MustCompile(`(?i)\/microsoft.managedidentity\/`)
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caseInsensitiveCommunityGalleriesRegexp = regexp.MustCompile(`(?i)\/communitygalleries\/`)
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caseInsensitiveImagesRegExp = regexp.MustCompile(`(?i)\/images\/`)
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caseInsensitiveVersionsRegExp = regexp.MustCompile(`(?i)\/versions\/`)
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)
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func normalizeAzureURIs(vars terraform.AzureVariables) terraform.AzureVariables {
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vars.UserAssignedIdentity = caseInsensitiveSubscriptionsRegexp.ReplaceAllString(vars.UserAssignedIdentity, "/subscriptions/")
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vars.UserAssignedIdentity = caseInsensitiveResourceGroupRegexp.ReplaceAllString(vars.UserAssignedIdentity, "/resourceGroups/")
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vars.UserAssignedIdentity = caseInsensitiveProvidersRegexp.ReplaceAllString(vars.UserAssignedIdentity, "/providers/")
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vars.UserAssignedIdentity = caseInsensitiveUserAssignedIdentitiesRegexp.ReplaceAllString(vars.UserAssignedIdentity, "/userAssignedIdentities/")
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vars.UserAssignedIdentity = caseInsensitiveMicrosoftManagedIdentity.ReplaceAllString(vars.UserAssignedIdentity, "/Microsoft.ManagedIdentity/")
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vars.ImageID = caseInsensitiveCommunityGalleriesRegexp.ReplaceAllString(vars.ImageID, "/communityGalleries/")
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vars.ImageID = caseInsensitiveImagesRegExp.ReplaceAllString(vars.ImageID, "/images/")
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vars.ImageID = caseInsensitiveVersionsRegExp.ReplaceAllString(vars.ImageID, "/versions/")
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return vars
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}
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// TODO: Upon changing this function, please refactor it to reduce the number of arguments to <= 5.
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//
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//revive:disable-next-line
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func (c *Creator) createQEMU(ctx context.Context, cl terraformClient, lv libvirtRunner, name string, config *config.Config,
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controlPlaneCount, workerCount int,
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) (idFile clusterid.File, retErr error) {
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qemuRollbacker := &rollbackerQEMU{client: cl, libvirt: lv, createdWorkspace: false}
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defer rollbackOnError(context.Background(), c.out, &retErr, qemuRollbacker)
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libvirtURI := config.Provider.QEMU.LibvirtURI
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libvirtSocketPath := "."
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switch {
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// if no libvirt URI is specified, start a libvirt container
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case libvirtURI == "":
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if err := lv.Start(ctx, name, config.Provider.QEMU.LibvirtContainerImage); err != nil {
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return clusterid.File{}, err
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}
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libvirtURI = libvirt.LibvirtTCPConnectURI
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// socket for system URI should be in /var/run/libvirt/libvirt-sock
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case libvirtURI == "qemu:///system":
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libvirtSocketPath = "/var/run/libvirt/libvirt-sock"
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// socket for session URI should be in /run/user/<uid>/libvirt/libvirt-sock
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case libvirtURI == "qemu:///session":
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libvirtSocketPath = fmt.Sprintf("/run/user/%d/libvirt/libvirt-sock", os.Getuid())
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// if a unix socket is specified we need to parse the URI to get the socket path
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case strings.HasPrefix(libvirtURI, "qemu+unix://"):
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unixURI, err := url.Parse(strings.TrimPrefix(libvirtURI, "qemu+unix://"))
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if err != nil {
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return clusterid.File{}, err
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}
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libvirtSocketPath = unixURI.Query().Get("socket")
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if libvirtSocketPath == "" {
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return clusterid.File{}, fmt.Errorf("socket path not specified in qemu+unix URI: %s", libvirtURI)
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}
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}
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metadataLibvirtURI := libvirtURI
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if libvirtSocketPath != "." {
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metadataLibvirtURI = "qemu:///system"
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}
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vars := terraform.QEMUVariables{
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CommonVariables: terraform.CommonVariables{
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Name: name,
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CountControlPlanes: controlPlaneCount,
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CountWorkers: workerCount,
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StateDiskSizeGB: config.StateDiskSizeGB,
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},
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LibvirtURI: libvirtURI,
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LibvirtSocketPath: libvirtSocketPath,
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ImagePath: config.Provider.QEMU.Image,
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ImageFormat: config.Provider.QEMU.ImageFormat,
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CPUCount: config.Provider.QEMU.VCPUs,
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MemorySizeMiB: config.Provider.QEMU.Memory,
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MetadataAPIImage: config.Provider.QEMU.MetadataAPIImage,
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MetadataLibvirtURI: metadataLibvirtURI,
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NVRAM: config.Provider.QEMU.NVRAM,
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Firmware: config.Provider.QEMU.Firmware,
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}
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if err := cl.PrepareWorkspace(cloudprovider.QEMU, &vars); err != nil {
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return clusterid.File{}, err
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}
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// Allow rollback of QEMU Terraform workspace from this point on
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qemuRollbacker.createdWorkspace = true
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ip, err := cl.CreateCluster(ctx)
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if err != nil {
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return clusterid.File{}, err
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}
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return clusterid.File{
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CloudProvider: cloudprovider.QEMU,
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IP: ip,
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}, nil
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}
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