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AB#2316 Configurable enforced PCRs (#361)

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* Add warnings for non enforced, untrusted PCRs

* Fix global state in Config PCR map

Signed-off-by: Daniel Weiße <dw@edgeless.systems>
This commit is contained in:
Daniel Weiße 2022-08-12 15:59:45 +02:00 • committed by GitHub
parent 9478303f80
commit ba4471a228
30 changed files with 350 additions and 323 deletions
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20
bootstrapper/internal/kubernetes/kubernetes.go
View file

@ -2,6 +2,7 @@ package kubernetes
import (
"context"
"encoding/json"
"errors"
"fmt"
"net"
@ -70,8 +71,8 @@ func New(cloudProvider string, clusterUtil clusterUtil, configProvider configura
// InitCluster initializes a new Kubernetes cluster and applies pod network provider.
func (k *KubeWrapper) InitCluster(
ctx context.Context, autoscalingNodeGroups []string, cloudServiceAccountURI, versionString string,
measurementSalt []byte, kmsConfig resources.KMSConfig, sshUsers map[string]string, helmDeployments []byte, log *logger.Logger,
ctx context.Context, autoscalingNodeGroups []string, cloudServiceAccountURI, versionString string, measurementSalt []byte,
enforcedPCRs []uint32, kmsConfig resources.KMSConfig, sshUsers map[string]string, helmDeployments []byte, log *logger.Logger,
) ([]byte, error) {
k8sVersion, err := versions.NewValidK8sVersion(versionString)
if err != nil {
@ -180,7 +181,7 @@ func (k *KubeWrapper) InitCluster(
return nil, fmt.Errorf("setting up kms: %w", err)
}
if err := k.setupJoinService(k.cloudProvider, k.initialMeasurementsJSON, measurementSalt); err != nil {
if err := k.setupJoinService(k.cloudProvider, k.initialMeasurementsJSON, measurementSalt, enforcedPCRs); err != nil {
return nil, fmt.Errorf("setting up join service failed: %w", err)
}
@ -297,8 +298,17 @@ func (k *KubeWrapper) GetKubeconfig() ([]byte, error) {
return k.kubeconfigReader.ReadKubeconfig()
}
func (k *KubeWrapper) setupJoinService(csp string, measurementsJSON, measurementSalt []byte) error {
joinConfiguration := resources.NewJoinServiceDaemonset(csp, string(measurementsJSON), measurementSalt)
func (k *KubeWrapper) setupJoinService(
csp string, measurementsJSON, measurementSalt []byte, enforcedPCRs []uint32,
) error {
enforcedPCRsJSON, err := json.Marshal(enforcedPCRs)
if err != nil {
return fmt.Errorf("marshaling enforcedPCRs: %w", err)
}
joinConfiguration := resources.NewJoinServiceDaemonset(
csp, string(measurementsJSON), string(enforcedPCRsJSON), measurementSalt,
)
return k.clusterUtil.SetupJoinService(k.client, joinConfiguration)
}