mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-12-27 00:19:36 -05:00
265 lines
10 KiB
Go
265 lines
10 KiB
Go
/*
|
|
Copyright (c) Edgeless Systems GmbH
|
|
|
|
SPDX-License-Identifier: AGPL-3.0-only
|
|
*/
|
|
|
|
package provider
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"github.com/edgelesssys/constellation/v2/internal/api/versionsapi"
|
|
"github.com/edgelesssys/constellation/v2/internal/attestation/variant"
|
|
"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
|
|
"github.com/edgelesssys/constellation/v2/internal/imagefetcher"
|
|
"github.com/edgelesssys/constellation/v2/internal/semver"
|
|
"github.com/edgelesssys/constellation/v2/terraform-provider-constellation/internal/data"
|
|
"github.com/hashicorp/terraform-plugin-framework/datasource"
|
|
"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
|
|
"github.com/hashicorp/terraform-plugin-framework/path"
|
|
"github.com/hashicorp/terraform-plugin-framework/types"
|
|
"github.com/hashicorp/terraform-plugin-log/tflog"
|
|
)
|
|
|
|
var (
|
|
// Ensure provider defined types fully satisfy framework interfaces.
|
|
_ datasource.DataSource = &ImageDataSource{}
|
|
_ datasource.DataSourceWithValidateConfig = &ImageDataSource{}
|
|
_ datasource.DataSourceWithConfigure = &ImageDataSource{}
|
|
caseInsensitiveCommunityGalleriesRegexp = regexp.MustCompile(`(?i)\/communitygalleries\/`)
|
|
caseInsensitiveImagesRegExp = regexp.MustCompile(`(?i)\/images\/`)
|
|
caseInsensitiveVersionsRegExp = regexp.MustCompile(`(?i)\/versions\/`)
|
|
)
|
|
|
|
// NewImageDataSource creates a new data source for fetching Constellation OS images
|
|
// from the Versions-API.
|
|
func NewImageDataSource() datasource.DataSource {
|
|
return &ImageDataSource{}
|
|
}
|
|
|
|
// ImageDataSource defines the data source implementation for the image data source.
|
|
// It is used to retrieve the Constellation OS image reference for a given CSP and Attestation Variant.
|
|
type ImageDataSource struct {
|
|
imageFetcher imageFetcher
|
|
version string
|
|
}
|
|
|
|
// imageFetcher gets an image reference from the versionsapi.
|
|
type imageFetcher interface {
|
|
FetchReference(ctx context.Context,
|
|
provider cloudprovider.Provider, attestationVariant variant.Variant,
|
|
image, region string, useMarketplaceImage bool,
|
|
) (string, error)
|
|
}
|
|
|
|
// ImageDataSourceModel defines the image data source's data model.
|
|
type ImageDataSourceModel struct {
|
|
AttestationVariant types.String `tfsdk:"attestation_variant"`
|
|
Version types.String `tfsdk:"version"`
|
|
CSP types.String `tfsdk:"csp"`
|
|
MarketplaceImage types.Bool `tfsdk:"marketplace_image"`
|
|
Region types.String `tfsdk:"region"`
|
|
Image types.Object `tfsdk:"image"`
|
|
}
|
|
|
|
// Metadata returns the metadata for the image data source.
|
|
func (d *ImageDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
|
|
resp.TypeName = req.ProviderTypeName + "_image"
|
|
}
|
|
|
|
// Schema returns the schema for the image data source.
|
|
func (d *ImageDataSource) Schema(_ context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
|
|
resp.Schema = schema.Schema{
|
|
Description: "The data source to resolve the CSP-specific OS image reference for a given version and attestation variant.",
|
|
MarkdownDescription: "Data source to resolve the CSP-specific OS image reference for a given version and attestation variant.",
|
|
Attributes: map[string]schema.Attribute{
|
|
// Input Attributes
|
|
"attestation_variant": newAttestationVariantAttributeSchema(attributeInput),
|
|
"version": schema.StringAttribute{
|
|
Description: "Version of the Constellation OS image to use. (e.g. `v2.13.0`). If not set, the provider version is used.",
|
|
MarkdownDescription: "Version of the Constellation OS image to use. (e.g. `v2.13.0`). If not set, the provider version value is used.",
|
|
Optional: true,
|
|
},
|
|
"csp": newCSPAttributeSchema(),
|
|
"marketplace_image": schema.BoolAttribute{
|
|
Description: "Whether a marketplace image should be used.",
|
|
MarkdownDescription: "Whether a marketplace image should be used.",
|
|
Optional: true,
|
|
},
|
|
"region": schema.StringAttribute{
|
|
Description: "Region to retrieve the image for. Only required for AWS.",
|
|
MarkdownDescription: "Region to retrieve the image for. Only required for AWS.\n" +
|
|
"The Constellation OS image must be [replicated to the region](https://docs.edgeless.systems/constellation/workflows/config)," +
|
|
"and the region must [support AMD SEV-SNP](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/snp-requirements.html), if it is used for Attestation.",
|
|
Optional: true,
|
|
},
|
|
// Output Attributes
|
|
"image": newImageAttributeSchema(attributeOutput),
|
|
},
|
|
}
|
|
}
|
|
|
|
// ValidateConfig validates the configuration for the image data source.
|
|
func (d *ImageDataSource) ValidateConfig(ctx context.Context, req datasource.ValidateConfigRequest, resp *datasource.ValidateConfigResponse) {
|
|
var data ImageDataSourceModel
|
|
resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)
|
|
if resp.Diagnostics.HasError() {
|
|
return
|
|
}
|
|
|
|
// Region must be set for AWS
|
|
if data.CSP.Equal(types.StringValue("aws")) && data.Region.IsNull() {
|
|
resp.Diagnostics.AddAttributeError(
|
|
path.Root("region"),
|
|
"Region must be set for AWS", "When csp is set to 'aws', 'region' must be specified.",
|
|
)
|
|
}
|
|
|
|
// Setting Region for non-AWS CSPs has no effect
|
|
if !data.CSP.Equal(types.StringValue("aws")) && !data.Region.IsNull() {
|
|
resp.Diagnostics.AddAttributeWarning(
|
|
path.Root("region"),
|
|
"Region should only be set for AWS", "When another CSP than AWS is used, setting 'region' has no effect.",
|
|
)
|
|
}
|
|
|
|
// Version should be a valid semver or short path, if set
|
|
if !data.Version.IsNull() {
|
|
_, semverErr := semver.New(data.Version.ValueString())
|
|
|
|
_, shortpathErr := versionsapi.NewVersionFromShortPath(data.Version.ValueString(), versionsapi.VersionKindImage)
|
|
|
|
if semverErr != nil && shortpathErr != nil {
|
|
resp.Diagnostics.AddAttributeError(
|
|
path.Root("version"),
|
|
"Invalid Version",
|
|
fmt.Sprintf("When parsing the version (%s), an error occurred: %s", data.Version.ValueString(), errors.Join(semverErr, shortpathErr)),
|
|
)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Configure configures the data source.
|
|
func (d *ImageDataSource) Configure(_ context.Context, req datasource.ConfigureRequest, resp *datasource.ConfigureResponse) {
|
|
d.imageFetcher = imagefetcher.New()
|
|
|
|
// Prevent panic if the provider has not been configured. is necessary!
|
|
if req.ProviderData == nil {
|
|
return
|
|
}
|
|
providerData, ok := req.ProviderData.(data.ProviderData)
|
|
if !ok {
|
|
resp.Diagnostics.AddError(
|
|
"Unexpected Data Source Configure Type",
|
|
fmt.Sprintf("Expected data.ProviderData, got: %T. Please report this issue to the provider developers.", req.ProviderData),
|
|
)
|
|
return
|
|
}
|
|
|
|
d.version = providerData.Version.String()
|
|
}
|
|
|
|
// Read reads from the data source.
|
|
func (d *ImageDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
|
|
// Retrieve the configuration values for this data source instance.
|
|
var data ImageDataSourceModel
|
|
resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)
|
|
// Check configuration for errors.
|
|
csp := cloudprovider.FromString(data.CSP.ValueString())
|
|
if csp == cloudprovider.Unknown {
|
|
resp.Diagnostics.AddAttributeError(
|
|
path.Root("csp"),
|
|
"Invalid CSP",
|
|
fmt.Sprintf("Invalid CSP: %s", data.CSP.ValueString()),
|
|
)
|
|
}
|
|
|
|
attestationVariant, err := variant.FromString(data.AttestationVariant.ValueString())
|
|
if err != nil {
|
|
resp.Diagnostics.AddAttributeError(
|
|
path.Root("attestation_variant"),
|
|
"Invalid Attestation Variant",
|
|
fmt.Sprintf("When parsing the Attestation Variant (%s), an error occurred: %s", data.AttestationVariant.ValueString(), err),
|
|
)
|
|
}
|
|
if resp.Diagnostics.HasError() {
|
|
return
|
|
}
|
|
|
|
// lock-step with the provider
|
|
imageVersion := data.Version.ValueString()
|
|
if imageVersion == "" {
|
|
tflog.Info(ctx, fmt.Sprintf("No image version specified, using provider version %s", d.version))
|
|
imageVersion = d.version // Use provider version as default.
|
|
}
|
|
|
|
// determine semver from version string
|
|
var imageSemver string
|
|
var apiCompatibleVer versionsapi.Version
|
|
if strings.HasPrefix(imageVersion, "v") {
|
|
// If the version is a release version, it should look like vX.Y.Z
|
|
imageSemver = imageVersion
|
|
apiCompatibleVer, err = versionsapi.NewVersion(
|
|
versionsapi.ReleaseRef,
|
|
"stable",
|
|
imageVersion,
|
|
versionsapi.VersionKindImage,
|
|
)
|
|
if err != nil {
|
|
resp.Diagnostics.AddAttributeError(
|
|
path.Root("version"),
|
|
"Invalid Version",
|
|
fmt.Sprintf("When parsing the version (%s), an error occurred: %s", imageVersion, err),
|
|
)
|
|
return
|
|
}
|
|
} else {
|
|
// otherwise, it should be a versionsapi short path
|
|
apiCompatibleVer, err = versionsapi.NewVersionFromShortPath(imageVersion, versionsapi.VersionKindImage)
|
|
if err != nil {
|
|
resp.Diagnostics.AddAttributeError(
|
|
path.Root("version"),
|
|
"Invalid Version",
|
|
fmt.Sprintf("When parsing the version (%s), an error occurred: %s", imageVersion, err),
|
|
)
|
|
return
|
|
}
|
|
imageSemver = apiCompatibleVer.Version()
|
|
}
|
|
|
|
// Retrieve Image Reference
|
|
imageRef, err := d.imageFetcher.FetchReference(ctx, csp, attestationVariant,
|
|
imageVersion, data.Region.ValueString(), data.MarketplaceImage.ValueBool())
|
|
if err != nil {
|
|
resp.Diagnostics.AddError(
|
|
"Error fetching Image Reference",
|
|
fmt.Sprintf("When fetching the image reference, an error occurred: %s", err),
|
|
)
|
|
return
|
|
}
|
|
|
|
// Do adjustments for Azure casing
|
|
if csp == cloudprovider.Azure {
|
|
imageRef = caseInsensitiveCommunityGalleriesRegexp.ReplaceAllString(imageRef, "/communityGalleries/")
|
|
imageRef = caseInsensitiveImagesRegExp.ReplaceAllString(imageRef, "/images/")
|
|
imageRef = caseInsensitiveVersionsRegExp.ReplaceAllString(imageRef, "/versions/")
|
|
}
|
|
|
|
// Save data into Terraform state
|
|
diags := resp.State.SetAttribute(ctx, path.Root("image"), imageAttribute{
|
|
Reference: imageRef,
|
|
Version: imageSemver,
|
|
ShortPath: apiCompatibleVer.ShortPath(),
|
|
MarketplaceImage: data.MarketplaceImage.ValueBoolPointer(),
|
|
})
|
|
resp.Diagnostics.Append(diags...)
|
|
if resp.Diagnostics.HasError() {
|
|
return
|
|
}
|
|
}
|