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cluster.go
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cluster.go
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package cluster
import (
"context"
"errors"
"fmt"
"sort"
"strings"
ocpbuildutils "github.com/rh-ecosystem-edge/kernel-module-management/internal/utils/ocpbuild"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/types"
clusterv1 "open-cluster-management.io/api/cluster/v1"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/log"
hubv1beta1 "github.com/rh-ecosystem-edge/kernel-module-management/api-hub/v1beta1"
kmmv1beta1 "github.com/rh-ecosystem-edge/kernel-module-management/api/v1beta1"
"github.com/rh-ecosystem-edge/kernel-module-management/internal/api"
"github.com/rh-ecosystem-edge/kernel-module-management/internal/build"
"github.com/rh-ecosystem-edge/kernel-module-management/internal/constants"
"github.com/rh-ecosystem-edge/kernel-module-management/internal/module"
"github.com/rh-ecosystem-edge/kernel-module-management/internal/sign"
)
//go:generate mockgen -source=cluster.go -package=cluster -destination=mock_cluster.go
type ClusterAPI interface {
RequestedManagedClusterModule(ctx context.Context, namespacedName types.NamespacedName) (*hubv1beta1.ManagedClusterModule, error)
SelectedManagedClusters(ctx context.Context, mcm *hubv1beta1.ManagedClusterModule) (*clusterv1.ManagedClusterList, error)
BuildAndSign(ctx context.Context, mcm hubv1beta1.ManagedClusterModule, cluster clusterv1.ManagedCluster) (bool, error)
GarbageCollectBuildsAndSigns(ctx context.Context, mcm hubv1beta1.ManagedClusterModule) ([]string, error)
KernelVersions(cluster clusterv1.ManagedCluster) ([]string, error)
}
type clusterAPI struct {
client client.Client
kernelAPI module.KernelMapper
buildAPI build.Manager
signAPI sign.SignManager
namespace string
}
func NewClusterAPI(
client client.Client,
kernelAPI module.KernelMapper,
buildAPI build.Manager,
signAPI sign.SignManager,
defaultJobNamespace string) ClusterAPI {
return &clusterAPI{
client: client,
kernelAPI: kernelAPI,
buildAPI: buildAPI,
signAPI: signAPI,
namespace: defaultJobNamespace,
}
}
func (c *clusterAPI) RequestedManagedClusterModule(
ctx context.Context,
namespacedName types.NamespacedName) (*hubv1beta1.ManagedClusterModule, error) {
mcm := hubv1beta1.ManagedClusterModule{}
if err := c.client.Get(ctx, namespacedName, &mcm); err != nil {
return nil, fmt.Errorf("failed to get the ManagedClusterModule %s: %w", namespacedName, err)
}
return &mcm, nil
}
func (c *clusterAPI) SelectedManagedClusters(
ctx context.Context,
mcm *hubv1beta1.ManagedClusterModule) (*clusterv1.ManagedClusterList, error) {
clusterList := &clusterv1.ManagedClusterList{}
opts := []client.ListOption{
client.MatchingLabelsSelector{
Selector: labels.Set(mcm.Spec.Selector).AsSelector(),
},
}
err := c.client.List(ctx, clusterList, opts...)
return clusterList, err
}
func (c *clusterAPI) BuildAndSign(
ctx context.Context,
mcm hubv1beta1.ManagedClusterModule,
cluster clusterv1.ManagedCluster) (bool, error) {
modSpec := mcm.Spec.ModuleSpec
mod := kmmv1beta1.Module{
ObjectMeta: metav1.ObjectMeta{
Name: mcm.Name,
Namespace: c.namespace,
},
Spec: modSpec,
}
mldMappings, err := c.kernelMappingsByKernelVersion(ctx, &mod, cluster)
if err != nil {
return false, err
}
// if no mappings were found, return not completed
if len(mldMappings) == 0 {
return false, nil
}
logger := log.FromContext(ctx)
completedSuccessfully := true
for kernelVersion, mld := range mldMappings {
buildCompleted, err := c.build(ctx, mld, &mcm)
if err != nil {
return false, err
}
kernelVersionLogger := logger.WithValues(
"kernel version", kernelVersion,
)
if !buildCompleted {
kernelVersionLogger.Info("Build for mapping has not completed yet, skipping Sign")
completedSuccessfully = false
continue
}
signCompleted, err := c.sign(ctx, mld, &mcm)
if err != nil {
return false, err
}
if !signCompleted {
kernelVersionLogger.Info("Sign for mapping has not completed yet")
completedSuccessfully = false
continue
}
}
return completedSuccessfully, nil
}
func (c *clusterAPI) GarbageCollectBuildsAndSigns(ctx context.Context, mcm hubv1beta1.ManagedClusterModule) ([]string, error) {
deletedBuilds, err := c.buildAPI.GarbageCollect(ctx, mcm.Name, c.namespace, &mcm)
if err != nil {
return nil, fmt.Errorf("failed to garbage collect build object: %v", err)
}
deletedSigns, err := c.signAPI.GarbageCollect(ctx, mcm.Name, c.namespace, &mcm)
if err != nil {
return nil, fmt.Errorf("failed to garbage collect sign object: %v", err)
}
return append(deletedBuilds, deletedSigns...), nil
}
func (c *clusterAPI) KernelVersions(cluster clusterv1.ManagedCluster) ([]string, error) {
for _, clusterClaim := range cluster.Status.ClusterClaims {
if clusterClaim.Name != constants.KernelVersionsClusterClaimName {
continue
}
kernelVersions := strings.Split(clusterClaim.Value, "\n")
sort.Strings(kernelVersions)
return kernelVersions, nil
}
return nil, errors.New("KMM kernel version ClusterClaim not found")
}
func (c *clusterAPI) kernelMappingsByKernelVersion(
ctx context.Context,
mod *kmmv1beta1.Module,
cluster clusterv1.ManagedCluster) (map[string]*api.ModuleLoaderData, error) {
kernelVersions, err := c.KernelVersions(cluster)
if err != nil {
return nil, err
}
mldMappings := make(map[string]*api.ModuleLoaderData)
logger := log.FromContext(ctx)
for _, kernelVersion := range kernelVersions {
kernelVersion := strings.TrimSuffix(kernelVersion, "+")
kernelVersionLogger := logger.WithValues(
"kernel version", kernelVersion,
)
if mld, ok := mldMappings[kernelVersion]; ok {
kernelVersionLogger.V(1).Info("Using cached mld mapping", "mld", mld)
continue
}
mld, err := c.kernelAPI.GetModuleLoaderDataForKernel(mod, kernelVersion)
if err != nil {
kernelVersionLogger.Info("no suitable container image found; skipping kernel version")
continue
}
kernelVersionLogger.V(1).Info("Found a valid mapping",
"image", mld.ContainerImage,
"build", mld.Build != nil,
)
mldMappings[kernelVersion] = mld
}
return mldMappings, nil
}
func (c *clusterAPI) build(
ctx context.Context,
mld *api.ModuleLoaderData,
mcm *hubv1beta1.ManagedClusterModule) (bool, error) {
shouldSync, err := c.buildAPI.ShouldSync(ctx, mld)
if err != nil {
return false, fmt.Errorf("could not check if build synchronization is needed: %v", err)
}
if !shouldSync {
return true, nil
}
logger := log.FromContext(ctx).WithValues(
"kernel version", mld.KernelVersion,
"image", mld.ContainerImage)
buildCtx := log.IntoContext(ctx, logger)
buildStatus, err := c.buildAPI.Sync(buildCtx, mld, true, mcm)
if err != nil {
return false, fmt.Errorf("could not synchronize the build: %w", err)
}
if buildStatus == ocpbuildutils.StatusCompleted {
return true, nil
}
return false, nil
}
func (c *clusterAPI) sign(
ctx context.Context,
mld *api.ModuleLoaderData,
mcm *hubv1beta1.ManagedClusterModule) (bool, error) {
shouldSync, err := c.signAPI.ShouldSync(ctx, mld)
if err != nil {
return false, fmt.Errorf("could not check if signing synchronization is needed: %v", err)
}
if !shouldSync {
return true, nil
}
// if we need to sign AND we've built, then we must have built
// the intermediate image so must figure out its name
previousImage := ""
if module.ShouldBeBuilt(mld) {
previousImage = module.IntermediateImageName(mld.Name, mld.Namespace, mld.ContainerImage)
}
logger := log.FromContext(ctx).WithValues(
"kernel version", mld.KernelVersion,
"image", mld.ContainerImage)
signCtx := log.IntoContext(ctx, logger)
signStatus, err := c.signAPI.Sync(signCtx, mld, previousImage, true, mcm)
if err != nil {
return false, fmt.Errorf("could not synchronize the signing: %w", err)
}
if signStatus == ocpbuildutils.StatusCompleted {
return true, nil
}
return false, nil
}