constellation/cli/internal/cloudcmd/create.go
2022-11-28 19:34:02 +01:00

326 lines
12 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package cloudcmd
import (
"context"
"fmt"
"io"
"net/url"
"os"
"regexp"
"runtime"
"strings"
"github.com/edgelesssys/constellation/v2/cli/internal/clusterid"
"github.com/edgelesssys/constellation/v2/cli/internal/libvirt"
"github.com/edgelesssys/constellation/v2/cli/internal/terraform"
"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
"github.com/edgelesssys/constellation/v2/internal/config"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/image"
)
// Creator creates cloud resources.
type Creator struct {
out io.Writer
image imageFetcher
newTerraformClient func(ctx context.Context) (terraformClient, error)
newLibvirtRunner func() libvirtRunner
newRawDownloader func() rawDownloader
}
// NewCreator creates a new creator.
func NewCreator(out io.Writer) *Creator {
return &Creator{
out: out,
image: image.New(),
newTerraformClient: func(ctx context.Context) (terraformClient, error) {
return terraform.New(ctx, constants.TerraformWorkingDir)
},
newLibvirtRunner: func() libvirtRunner {
return libvirt.New()
},
newRawDownloader: func() rawDownloader {
return image.NewDownloader()
},
}
}
// Create creates the handed amount of instances and all the needed resources.
func (c *Creator) Create(ctx context.Context, provider cloudprovider.Provider, config *config.Config, name, insType string, controlPlaneCount, workerCount int,
) (clusterid.File, error) {
image, err := c.image.FetchReference(ctx, config)
if err != nil {
return clusterid.File{}, fmt.Errorf("fetching image reference: %w", err)
}
switch provider {
case cloudprovider.AWS:
cl, err := c.newTerraformClient(ctx)
if err != nil {
return clusterid.File{}, err
}
defer cl.RemoveInstaller()
return c.createAWS(ctx, cl, config, name, insType, controlPlaneCount, workerCount, image)
case cloudprovider.GCP:
cl, err := c.newTerraformClient(ctx)
if err != nil {
return clusterid.File{}, err
}
defer cl.RemoveInstaller()
return c.createGCP(ctx, cl, config, name, insType, controlPlaneCount, workerCount, image)
case cloudprovider.Azure:
cl, err := c.newTerraformClient(ctx)
if err != nil {
return clusterid.File{}, err
}
defer cl.RemoveInstaller()
return c.createAzure(ctx, cl, config, name, insType, controlPlaneCount, workerCount, image)
case cloudprovider.QEMU:
if runtime.GOARCH != "amd64" || runtime.GOOS != "linux" {
return clusterid.File{}, fmt.Errorf("creation of a QEMU based Constellation is not supported for %s/%s", runtime.GOOS, runtime.GOARCH)
}
cl, err := c.newTerraformClient(ctx)
if err != nil {
return clusterid.File{}, err
}
defer cl.RemoveInstaller()
lv := c.newLibvirtRunner()
return c.createQEMU(ctx, cl, lv, name, config, controlPlaneCount, workerCount, image)
default:
return clusterid.File{}, fmt.Errorf("unsupported cloud provider: %s", provider)
}
}
func (c *Creator) createAWS(ctx context.Context, cl terraformClient, config *config.Config,
name, insType string, controlPlaneCount, workerCount int, image string,
) (idFile clusterid.File, retErr error) {
vars := terraform.AWSVariables{
CommonVariables: terraform.CommonVariables{
Name: name,
CountControlPlanes: controlPlaneCount,
CountWorkers: workerCount,
StateDiskSizeGB: config.StateDiskSizeGB,
},
StateDiskType: config.Provider.AWS.StateDiskType,
Region: config.Provider.AWS.Region,
Zone: config.Provider.AWS.Zone,
InstanceType: insType,
AMIImageID: image,
IAMProfileControlPlane: config.Provider.AWS.IAMProfileControlPlane,
IAMProfileWorkerNodes: config.Provider.AWS.IAMProfileWorkerNodes,
Debug: config.IsDebugCluster(),
}
if err := cl.PrepareWorkspace(cloudprovider.AWS, &vars); err != nil {
return clusterid.File{}, err
}
defer rollbackOnError(context.Background(), c.out, &retErr, &rollbackerTerraform{client: cl})
ip, initSecret, err := cl.CreateCluster(ctx)
if err != nil {
return clusterid.File{}, err
}
return clusterid.File{
CloudProvider: cloudprovider.AWS,
InitSecret: []byte(initSecret),
IP: ip,
}, nil
}
func (c *Creator) createGCP(ctx context.Context, cl terraformClient, config *config.Config,
name, insType string, controlPlaneCount, workerCount int, image string,
) (idFile clusterid.File, retErr error) {
vars := terraform.GCPVariables{
CommonVariables: terraform.CommonVariables{
Name: name,
CountControlPlanes: controlPlaneCount,
CountWorkers: workerCount,
StateDiskSizeGB: config.StateDiskSizeGB,
},
Project: config.Provider.GCP.Project,
Region: config.Provider.GCP.Region,
Zone: config.Provider.GCP.Zone,
CredentialsFile: config.Provider.GCP.ServiceAccountKeyPath,
InstanceType: insType,
StateDiskType: config.Provider.GCP.StateDiskType,
ImageID: image,
Debug: config.IsDebugCluster(),
}
if err := cl.PrepareWorkspace(cloudprovider.GCP, &vars); err != nil {
return clusterid.File{}, err
}
defer rollbackOnError(context.Background(), c.out, &retErr, &rollbackerTerraform{client: cl})
ip, initSecret, err := cl.CreateCluster(ctx)
if err != nil {
return clusterid.File{}, err
}
return clusterid.File{
CloudProvider: cloudprovider.GCP,
InitSecret: []byte(initSecret),
IP: ip,
}, nil
}
func (c *Creator) createAzure(ctx context.Context, cl terraformClient, config *config.Config,
name, insType string, controlPlaneCount, workerCount int, image string,
) (idFile clusterid.File, retErr error) {
vars := terraform.AzureVariables{
CommonVariables: terraform.CommonVariables{
Name: name,
CountControlPlanes: controlPlaneCount,
CountWorkers: workerCount,
StateDiskSizeGB: config.StateDiskSizeGB,
},
Location: config.Provider.Azure.Location,
ResourceGroup: config.Provider.Azure.ResourceGroup,
UserAssignedIdentity: config.Provider.Azure.UserAssignedIdentity,
InstanceType: insType,
StateDiskType: config.Provider.Azure.StateDiskType,
ImageID: image,
ConfidentialVM: *config.Provider.Azure.ConfidentialVM,
SecureBoot: *config.Provider.Azure.SecureBoot,
Debug: config.IsDebugCluster(),
}
vars = normalizeAzureURIs(vars)
if err := cl.PrepareWorkspace(cloudprovider.Azure, &vars); err != nil {
return clusterid.File{}, err
}
defer rollbackOnError(context.Background(), c.out, &retErr, &rollbackerTerraform{client: cl})
ip, initSecret, err := cl.CreateCluster(ctx)
if err != nil {
return clusterid.File{}, err
}
return clusterid.File{
CloudProvider: cloudprovider.Azure,
IP: ip,
InitSecret: []byte(initSecret),
}, nil
}
// 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.
// Let's go loco with case insensitive Regexp here and fix the user input here to be compliant with this arbitrary design decision.
var (
caseInsensitiveSubscriptionsRegexp = regexp.MustCompile(`(?i)\/subscriptions\/`)
caseInsensitiveResourceGroupRegexp = regexp.MustCompile(`(?i)\/resourcegroups\/`)
caseInsensitiveProvidersRegexp = regexp.MustCompile(`(?i)\/providers\/`)
caseInsensitiveUserAssignedIdentitiesRegexp = regexp.MustCompile(`(?i)\/userassignedidentities\/`)
caseInsensitiveMicrosoftManagedIdentity = regexp.MustCompile(`(?i)\/microsoft.managedidentity\/`)
caseInsensitiveCommunityGalleriesRegexp = regexp.MustCompile(`(?i)\/communitygalleries\/`)
caseInsensitiveImagesRegExp = regexp.MustCompile(`(?i)\/images\/`)
caseInsensitiveVersionsRegExp = regexp.MustCompile(`(?i)\/versions\/`)
)
func normalizeAzureURIs(vars terraform.AzureVariables) terraform.AzureVariables {
vars.UserAssignedIdentity = caseInsensitiveSubscriptionsRegexp.ReplaceAllString(vars.UserAssignedIdentity, "/subscriptions/")
vars.UserAssignedIdentity = caseInsensitiveResourceGroupRegexp.ReplaceAllString(vars.UserAssignedIdentity, "/resourceGroups/")
vars.UserAssignedIdentity = caseInsensitiveProvidersRegexp.ReplaceAllString(vars.UserAssignedIdentity, "/providers/")
vars.UserAssignedIdentity = caseInsensitiveUserAssignedIdentitiesRegexp.ReplaceAllString(vars.UserAssignedIdentity, "/userAssignedIdentities/")
vars.UserAssignedIdentity = caseInsensitiveMicrosoftManagedIdentity.ReplaceAllString(vars.UserAssignedIdentity, "/Microsoft.ManagedIdentity/")
vars.ImageID = caseInsensitiveCommunityGalleriesRegexp.ReplaceAllString(vars.ImageID, "/communityGalleries/")
vars.ImageID = caseInsensitiveImagesRegExp.ReplaceAllString(vars.ImageID, "/images/")
vars.ImageID = caseInsensitiveVersionsRegExp.ReplaceAllString(vars.ImageID, "/versions/")
return vars
}
func (c *Creator) createQEMU(ctx context.Context, cl terraformClient, lv libvirtRunner, name string, config *config.Config,
controlPlaneCount, workerCount int, source string,
) (idFile clusterid.File, retErr error) {
qemuRollbacker := &rollbackerQEMU{client: cl, libvirt: lv, createdWorkspace: false}
defer rollbackOnError(context.Background(), c.out, &retErr, qemuRollbacker)
// TODO: render progress bar
downloader := c.newRawDownloader()
imagePath, err := downloader.Download(ctx, c.out, false, source, config.Image)
if err != nil {
return clusterid.File{}, fmt.Errorf("download raw image: %w", err)
}
libvirtURI := config.Provider.QEMU.LibvirtURI
libvirtSocketPath := "."
switch {
// if no libvirt URI is specified, start a libvirt container
case libvirtURI == "":
if err := lv.Start(ctx, name, config.Provider.QEMU.LibvirtContainerImage); err != nil {
return clusterid.File{}, err
}
libvirtURI = libvirt.LibvirtTCPConnectURI
// socket for system URI should be in /var/run/libvirt/libvirt-sock
case libvirtURI == "qemu:///system":
libvirtSocketPath = "/var/run/libvirt/libvirt-sock"
// socket for session URI should be in /run/user/<uid>/libvirt/libvirt-sock
case libvirtURI == "qemu:///session":
libvirtSocketPath = fmt.Sprintf("/run/user/%d/libvirt/libvirt-sock", os.Getuid())
// if a unix socket is specified we need to parse the URI to get the socket path
case strings.HasPrefix(libvirtURI, "qemu+unix://"):
unixURI, err := url.Parse(strings.TrimPrefix(libvirtURI, "qemu+unix://"))
if err != nil {
return clusterid.File{}, err
}
libvirtSocketPath = unixURI.Query().Get("socket")
if libvirtSocketPath == "" {
return clusterid.File{}, fmt.Errorf("socket path not specified in qemu+unix URI: %s", libvirtURI)
}
}
metadataLibvirtURI := libvirtURI
if libvirtSocketPath != "." {
metadataLibvirtURI = "qemu:///system"
}
vars := terraform.QEMUVariables{
CommonVariables: terraform.CommonVariables{
Name: name,
CountControlPlanes: controlPlaneCount,
CountWorkers: workerCount,
StateDiskSizeGB: config.StateDiskSizeGB,
},
LibvirtURI: libvirtURI,
LibvirtSocketPath: libvirtSocketPath,
ImagePath: imagePath,
ImageFormat: config.Provider.QEMU.ImageFormat,
CPUCount: config.Provider.QEMU.VCPUs,
MemorySizeMiB: config.Provider.QEMU.Memory,
MetadataAPIImage: config.Provider.QEMU.MetadataAPIImage,
MetadataLibvirtURI: metadataLibvirtURI,
NVRAM: config.Provider.QEMU.NVRAM,
Firmware: config.Provider.QEMU.Firmware,
}
if err := cl.PrepareWorkspace(cloudprovider.QEMU, &vars); err != nil {
return clusterid.File{}, err
}
// Allow rollback of QEMU Terraform workspace from this point on
qemuRollbacker.createdWorkspace = true
ip, initSecret, err := cl.CreateCluster(ctx)
if err != nil {
return clusterid.File{}, err
}
return clusterid.File{
CloudProvider: cloudprovider.QEMU,
InitSecret: []byte(initSecret),
IP: ip,
}, nil
}