cloudapi: Request depsolve from osbuild-worker

and return the response to the client. This uses the worker to depsolve
the requested packages. The result is returned to the client as a list
of packages using the same PackageMetadata schema as the ComposeStatus
response.  It will also time out after 5 minutes and return an error,
using the same timeout constant as depsolving during manifest
generation.

Related: RHEL-60125

internal/cloudapi/v2/depsolve.go

@@ -0,0 +1,107 @@
+package v2
+
+// DepsolveRequest methods
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/osbuild/images/pkg/distrofactory"
+	"github.com/osbuild/images/pkg/reporegistry"
+	"github.com/osbuild/images/pkg/rpmmd"
+	"github.com/osbuild/images/pkg/sbom"
+	"github.com/osbuild/osbuild-composer/internal/worker"
+)
+
+func (request *DepsolveRequest) Depsolve(df *distrofactory.Factory, rr *reporegistry.RepoRegistry, workers *worker.Server) ([]rpmmd.PackageSpec, error) {
+	// Convert the requested blueprint to a composer blueprint
+	bp, err := ConvertRequestBP(request.Blueprint)
+	if err != nil {
+		return nil, err
+	}
+
+	// If the blueprint include distro and/or architecture they must match the ones
+	// in request -- otherwise the results may not be what is expected.
+	if len(bp.Distro) > 0 && bp.Distro != request.Distribution {
+		return nil, HTTPError(ErrorMismatchedDistribution)
+	}
+
+	// XXX CloudAPI Blueprint needs to have missing Architecture added first
+	/*
+		if len(bp.Architecture) > 0 && bp.Architecture != request.Architecture {
+			return nil, HTTPError(ErrorMismatchedArchitecture)
+		}
+	*/
+	distro := df.GetDistro(request.Distribution)
+	if distro == nil {
+		return nil, HTTPError(ErrorUnsupportedDistribution)
+	}
+	distroArch, err := distro.GetArch(request.Architecture)
+	if err != nil {
+		return nil, HTTPErrorWithInternal(ErrorUnsupportedArchitecture, err)
+	}
+
+	var repos []rpmmd.RepoConfig
+	if request.Repositories != nil {
+		repos, err = convertRepos(*request.Repositories, []Repository{}, []string{})
+		if err != nil {
+			// Error comes from genRepoConfig and is already an HTTPError
+			return nil, err
+		}
+	} else {
+		repos, err = rr.ReposByArchName(request.Distribution, distroArch.Name(), false)
+		if err != nil {
+			return nil, HTTPErrorWithInternal(ErrorInvalidRepository, err)
+		}
+	}
+
+	// Send the depsolve request to the worker
+	packageSet := make(map[string][]rpmmd.PackageSet, 1)
+	packageSet["depsolve"] = []rpmmd.PackageSet{{Include: bp.GetPackages(), Repositories: repos}}
+
+	depsolveJobID, err := workers.EnqueueDepsolve(&worker.DepsolveJob{
+		PackageSets:      packageSet,
+		ModulePlatformID: distro.ModulePlatformID(),
+		Arch:             distroArch.Name(),
+		Releasever:       distro.Releasever(),
+		SbomType:         sbom.StandardTypeNone,
+	}, "")
+	if err != nil {
+		return nil, HTTPErrorWithInternal(ErrorEnqueueingJob, err)
+	}
+
+	// Limit how long a depsolve can take
+	ctx, cancel := context.WithTimeout(context.Background(), time.Minute*depsolveTimeoutMin)
+	defer cancel()
+
+	// Wait until depsolve job is finished, fails, or is canceled
+	var result worker.DepsolveJobResult
+	for {
+		time.Sleep(time.Millisecond * 50)
+		info, err := workers.DepsolveJobInfo(depsolveJobID, &result)
+		if err != nil {
+			return nil, HTTPErrorWithInternal(ErrorFailedToDepsolve, err)
+		}
+		if result.JobError != nil {
+			return nil, HTTPErrorWithInternal(ErrorFailedToDepsolve, err)
+		}
+		if info.JobStatus != nil {
+			if info.JobStatus.Canceled {
+				return nil, HTTPErrorWithInternal(ErrorFailedToDepsolve, err)
+			}
+
+			if !info.JobStatus.Finished.IsZero() {
+				break
+			}
+		}
+
+		select {
+		case <-ctx.Done():
+			return nil, HTTPErrorWithInternal(ErrorFailedToDepsolve, fmt.Errorf("Depsolve job %q timed out", depsolveJobID))
+		default:
+		}
+	}
+
+	return result.PackageSpecs["depsolve"], nil
+}

internal/cloudapi/v2/errors.go

@@ -50,6 +50,8 @@ const (
 	ErrorInvalidPartitioningMode      ServiceErrorCode = 37
 	ErrorInvalidUploadTarget          ServiceErrorCode = 38
 	ErrorBlueprintOrCustomNotBoth     ServiceErrorCode = 39
+	ErrorMismatchedDistribution       ServiceErrorCode = 40
+	ErrorMismatchedArchitecture       ServiceErrorCode = 41
 
 	// Internal errors, these are bugs
 	ErrorFailedToInitializeBlueprint              ServiceErrorCode = 1000
@@ -131,6 +133,8 @@ func getServiceErrors() serviceErrors {
 		serviceError{ErrorInvalidPartitioningMode, http.StatusBadRequest, "Requested partitioning mode is invalid"},
 		serviceError{ErrorInvalidUploadTarget, http.StatusBadRequest, "Invalid upload target for image type"},
 		serviceError{ErrorBlueprintOrCustomNotBoth, http.StatusBadRequest, "Invalid request, include blueprint or customizations, not both"},
+		serviceError{ErrorMismatchedDistribution, http.StatusBadRequest, "Invalid request, Blueprint and Cloud API request Distribution must match."},
+		serviceError{ErrorMismatchedArchitecture, http.StatusBadRequest, "Invalid request, Blueprint and Cloud API request Architecture must match."},
 
 		serviceError{ErrorFailedToInitializeBlueprint, http.StatusInternalServerError, "Failed to initialize blueprint"},
 		serviceError{ErrorFailedToGenerateManifestSeed, http.StatusInternalServerError, "Failed to generate manifest seed"},

internal/cloudapi/v2/handler.go

@@ -1354,3 +1354,52 @@ func uploadStatusFromJobStatus(js *worker.JobStatus, je *clienterrors.Error) Upl
 	}
 	return UploadStatusValueSuccess
 }
+
+// PostDepsolveBlueprint depsolves the packages in a blueprint and returns
+// the results as a list of rpmmd.PackageSpecs
+func (h *apiHandlers) PostDepsolveBlueprint(ctx echo.Context) error {
+	var request DepsolveRequest
+	err := ctx.Bind(&request)
+	if err != nil {
+		return err
+	}
+
+	// Depsolve the requested blueprint
+	// Any errors returned are suitable as a response
+	deps, err := request.Depsolve(h.server.distros, h.server.repos, h.server.workers)
+	if err != nil {
+		return err
+	}
+
+	return ctx.JSON(http.StatusOK,
+		DepsolveResponse{
+			Packages: packageSpecToPackageMetadata(deps),
+		})
+}
+
+// packageSpecToPackageMetadata converts the rpmmd.PackageSpec to PackageMetadata
+// This is used to return package information from the blueprint depsolve request
+// using the common PackageMetadata format from the openapi schema.
+func packageSpecToPackageMetadata(pkgspecs []rpmmd.PackageSpec) []PackageMetadata {
+	packages := make([]PackageMetadata, 0)
+	for _, rpm := range pkgspecs {
+		// Set epoch if it is not 0
+
+		var epoch *string
+		if rpm.Epoch > 0 {
+			epoch = common.ToPtr(strconv.FormatUint(uint64(rpm.Epoch), 10))
+		}
+		packages = append(packages,
+			PackageMetadata{
+				Type:     "rpm",
+				Name:     rpm.Name,
+				Version:  rpm.Version,
+				Release:  rpm.Release,
+				Epoch:    epoch,
+				Arch:     rpm.Arch,
+				Checksum: common.ToPtr(rpm.Checksum),
+			},
+		)
+	}
+	return packages
+}

internal/cloudapi/v2/server.go

@@ -37,6 +37,9 @@ import (
 	"github.com/osbuild/osbuild-composer/internal/worker/clienterrors"
 )
 
+// How long to wait for a depsolve job to finish
+const depsolveTimeoutMin = 5
+
 // Server represents the state of the cloud Server
 type Server struct {
 	workers *worker.Server
@@ -447,8 +450,7 @@ func (s *Server) enqueueKojiCompose(taskID uint64, server, name, version, releas
 
 func serializeManifest(ctx context.Context, manifestSource *manifest.Manifest, workers *worker.Server, depsolveJobID, containerResolveJobID, ostreeResolveJobID, manifestJobID uuid.UUID, seed int64) {
 	// prepared to become a config variable
-	const depsolveTimeout = 5
-	ctx, cancel := context.WithTimeout(ctx, time.Minute*depsolveTimeout)
+	ctx, cancel := context.WithTimeout(ctx, time.Minute*depsolveTimeoutMin)
 	defer cancel()
 
 	jobResult := &worker.ManifestJobByIDResult{
@@ -515,7 +517,7 @@ func serializeManifest(ctx context.Context, manifestSource *manifest.Manifest, w
 			select {
 			case <-ctx.Done():
 				logWithId.Warning(fmt.Sprintf("Manifest job dependencies took longer than %d minutes to finish,"+
-					" or the server is shutting down, returning to avoid dangling routines", depsolveTimeout))
+					" or the server is shutting down, returning to avoid dangling routines", depsolveTimeoutMin))
 
 				jobResult.JobError = clienterrors.New(clienterrors.ErrorDepsolveTimeout,
 					"Timeout while waiting for package dependency resolution",