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* deps: update Go dependencies * bazel: force Gazelle generation for xDS xDS has an upstream set of build files that makes Gazelle consider their project a whole new Bazel project, which makes Gazelle not generate any build files, even though the upstream ones aren't valid. See https://github.com/cncf/xds/issues/104. * go: update cel.dev/expr for Bazel fixes cel.dev/expr had some upstream Bazel fixes in v0.16.2 without which Gazelle doesn't work. * chore: generate * e2e: remove references to kubeProxyVersion kubeProxyVersion is deprecated as of KEP-4004. It was never being set to an accurate value before, and we only used it in the e2e test, so removing the additional check should not hurt here. See https://github.com/kubernetes/enhancements/tree/master/keps/sig-network/4004-deprecate-kube-proxy-version * constellation-node-operator: use typed rate-limiter The untyped rate-limiter was deprecated in favor of a generic one that can just be instantiated to `any` to achieve the previous behaviour. * Advertise ALPN settings in NextProtos required by gRPC Signed-off-by: Daniel Weiße <dw@edgeless.systems> * atls: add nextProtos nextProtos (for ALPN) is now required by gRPC, so add it. * go: add cri-client replace * deps: tidy all modules --------- Signed-off-by: Daniel Weiße <dw@edgeless.systems> Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Moritz Sanft <58110325+msanft@users.noreply.github.com> Co-authored-by: Daniel Weiße <dw@edgeless.systems> Co-authored-by: edgelessci <edgelessci@users.noreply.github.com> |
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| joinproto | ||
| README.md | ||
Join Service
Implementation for Constellation's node flow to join an existing cluster.
The join service runs on each control-plane node of the Kubernetes cluster. New nodes (at cluster start, or later through autoscaling) send an IssueJoinTicket request to the service over aTLS. The join service verifies the new nodes certificate and attestation statement. If attestation is successful, the new node is supplied with a disk encryption key for its state disk, and a Kubernetes bootstrap token, so it may join the cluster.
Packages
joinproto
Proto definitions for the join service.
internal/server
The server implements gRPC endpoints for joining the cluster and holds the main application logic.
Connections between the join service and joining nodes are secured using aTLS
sequenceDiagram
participant New Node
participant Join Service
New Node-->>Join Service: aTLS Handshake (server side verification)
Join Service-->>New Node: #
New Node->>+Join Service: grpc::IssueJoinTicket(DiskUUID, NodeName, IsControlPlane)
Join Service->>+KMS: grpc::GetDataKey(DiskUUID)
KMS->>-Join Service: DiskEncryptionKey
Join Service->>-New Node: [DiskEncryptionKey, KubernetesJoinToken, ...]
internal/kms
Implements interaction with Constellation's keyservice. This is needed for fetching data encryption keys for joining nodes.
internal/kubeadm
Implements interaction with the Kubernetes API to create join tokens for new nodes.
Docker image
Build the image:
bazel build //joinservice/cmd:joinservice
bazel build //bazel/release:joinservice_sum
bazel build //bazel/release:joinservice_tar
bazel run //bazel/release:joinservice_push