mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-10-01 01:36:09 -04:00
203 lines
8.0 KiB
Go
203 lines
8.0 KiB
Go
package pubapi
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import (
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"context"
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"net"
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"github.com/edgelesssys/constellation/coordinator/peer"
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"github.com/edgelesssys/constellation/coordinator/pubapi/pubproto"
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"github.com/edgelesssys/constellation/coordinator/role"
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"github.com/edgelesssys/constellation/coordinator/state"
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"go.uber.org/zap"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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)
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// ActivateAsAdditionalCoordinator is the RPC call to activate subsequent coordinators.
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func (a *API) ActivateAsAdditionalCoordinator(ctx context.Context, in *pubproto.ActivateAsAdditionalCoordinatorRequest) (out *pubproto.ActivateAsAdditionalCoordinatorResponse, reterr error) {
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_, cancel := context.WithTimeout(ctx, deadlineDuration)
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defer cancel()
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a.mut.Lock()
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defer a.mut.Unlock()
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if err := a.core.RequireState(state.AcceptingInit); err != nil {
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return nil, status.Errorf(codes.FailedPrecondition, "node is not in required state: %v", err)
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}
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// Some of the following actions can't be reverted (yet). If there's an
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// error, we may be in a weird state. Thus, mark this peer as failed.
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defer func() {
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if reterr != nil {
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_ = a.core.AdvanceState(state.Failed, nil, nil)
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}
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}()
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// AdvanceState MUST be called before any other functions that are not sanity checks or otherwise required
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// This ensures the node is marked as initialzed before the node is in a state that allows code execution
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// Any new additions to ActivateAsAdditionalCoordinator MUST come after
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if err := a.core.AdvanceState(state.ActivatingNodes, in.OwnerId, in.ClusterId); err != nil {
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return nil, status.Errorf(codes.Internal, "advance state to ActivatingNodes: %v", err)
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}
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// add one coordinator to the VPN
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if err := a.core.SetVPNIP(in.AssignedVpnIp); err != nil {
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return nil, status.Errorf(codes.Internal, "set vpn IP address: %v", err)
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}
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if err := a.core.AddPeerToVPN(peer.FromPubProto([]*pubproto.Peer{in.ActivatingCoordinatorData})[0]); err != nil {
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return nil, status.Errorf(codes.Internal, "adding initial peers to vpn: %v", err)
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}
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// run the VPN-API server
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if err := a.vpnAPIServer.Listen(net.JoinHostPort(in.AssignedVpnIp, vpnAPIPort)); err != nil {
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return nil, status.Errorf(codes.Internal, "start vpnAPIServer: %v", err)
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}
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a.wgClose.Add(1)
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go func() {
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defer a.wgClose.Done()
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if err := a.vpnAPIServer.Serve(); err != nil {
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panic(err)
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}
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}()
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// TODO: kubernetes information and join
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// ATTENTION: STORE HAS TO BE EMPTY (NO OVERLAPPING KEYS) WHEN THIS FUNCTION IS CALLED
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if err := a.core.SwitchToPersistentStore(); err != nil {
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return nil, status.Errorf(codes.Internal, "switch to persistent store: %v", err)
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}
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a.logger.Info("Transition to persistent store successful")
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kmsData, err := a.core.GetKMSInfo()
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if err != nil {
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return nil, status.Errorf(codes.Internal, "%v", err)
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}
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if err := a.core.SetUpKMS(ctx, kmsData.StorageUri, kmsData.KmsUri, kmsData.KeyEncryptionKeyID, false); err != nil {
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return nil, status.Errorf(codes.Internal, "%v", err)
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}
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thisPeer, err := a.assemblePeerStruct(in.AssignedVpnIp, role.Coordinator)
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if err != nil {
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return nil, status.Errorf(codes.Internal, "assembling coordinator peer struct: %v", err)
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}
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if err := a.core.AddPeerToStore(thisPeer); err != nil {
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return nil, status.Errorf(codes.Internal, "adding new coordinator to persistent store: %v", err)
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}
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resourceVersion, peers, err := a.core.GetPeers(0)
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if err != nil {
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return nil, status.Errorf(codes.Internal, "get peers from store: %v", err)
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}
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a.resourceVersion = resourceVersion
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err = a.core.UpdatePeers(peers)
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if err != nil {
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return nil, status.Errorf(codes.Internal, "synchronizing peers with vpn state: %v", err)
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}
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// Manually trigger an update operation on all peers.
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// This may be expendable in the future, depending on whether it's acceptable that it takes
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// some seconds until the nodes get all peer data via their regular update requests.
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_, peers, err = a.core.GetPeers(0)
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if err != nil {
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return nil, status.Errorf(codes.Internal, "get peers from store: %v", err)
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}
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a.logger.Info("", zap.Any("peers", peers))
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for _, p := range peers {
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if p.Role == role.Node {
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if err := a.triggerNodeUpdate(p.PublicIP); err != nil {
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a.logger.Error("triggerNodeUpdate failed", zap.Error(err), zap.String("endpoint", p.PublicIP), zap.String("vpnip", p.VPNIP))
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}
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}
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if p.Role == role.Coordinator && p.VPNIP != thisPeer.VPNIP {
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a.logger.Info("update coordinator", zap.String("coordinator vpnIP", p.VPNIP))
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if err := a.triggerCoordinatorUpdate(context.TODO(), p.PublicIP); err != nil {
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a.logger.Error("triggerCoordinatorUpdate failed", zap.Error(err), zap.String("endpoint", p.PublicIP), zap.String("vpnip", p.VPNIP))
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}
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}
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}
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return &pubproto.ActivateAsAdditionalCoordinatorResponse{}, nil
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}
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func (a *API) ActivateAdditionalCoordinator(ctx context.Context, in *pubproto.ActivateAdditionalCoordinatorRequest) (*pubproto.ActivateAdditionalCoordinatorResponse, error) {
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ctx, cancel := context.WithTimeout(ctx, deadlineDuration)
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defer cancel()
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if err := a.core.RequireState(state.ActivatingNodes); err != nil {
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return nil, status.Errorf(codes.FailedPrecondition, "coordinator is not in required state: %v", err)
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}
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assignedVPNIP, err := a.core.GetNextCoordinatorIP()
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if err != nil {
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return nil, status.Errorf(codes.Internal, "requesting new coordinator vpn IP address: %v", err)
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}
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vpnIP, err := a.core.GetVPNIP()
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if err != nil {
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return nil, status.Errorf(codes.Internal, "get own vpn IP address: %v", err)
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}
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thisPeer, err := a.assemblePeerStruct(vpnIP, role.Coordinator)
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if err != nil {
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return nil, status.Errorf(codes.Internal, "assembling coordinator peer struct: %v", err)
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}
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ownerID, clusterID, err := a.core.GetIDs(nil)
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if err != nil {
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return nil, status.Errorf(codes.Internal, "get owner and cluster ID: %v", err)
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}
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conn, err := a.dial(ctx, net.JoinHostPort(in.CoordinatorPublicIp, endpointAVPNPort))
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if err != nil {
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return nil, status.Errorf(codes.Internal, "dialing new coordinator: %v", err)
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}
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defer conn.Close()
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client := pubproto.NewAPIClient(conn)
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_, err = client.ActivateAsAdditionalCoordinator(ctx, &pubproto.ActivateAsAdditionalCoordinatorRequest{
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AssignedVpnIp: assignedVPNIP,
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ActivatingCoordinatorData: peer.ToPubProto([]peer.Peer{thisPeer})[0],
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OwnerId: ownerID,
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ClusterId: clusterID,
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})
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if err != nil {
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a.logger.Error("coordinator activation failed", zap.Error(err))
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return nil, status.Errorf(codes.Internal, "activate new coordinator: %v", err)
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}
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return &pubproto.ActivateAdditionalCoordinatorResponse{}, nil
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}
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func (a *API) TriggerCoordinatorUpdate(ctx context.Context, in *pubproto.TriggerCoordinatorUpdateRequest) (*pubproto.TriggerCoordinatorUpdateResponse, error) {
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if err := a.core.RequireState(state.ActivatingNodes); err != nil {
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return nil, status.Errorf(codes.FailedPrecondition, "coordinator is not in required state for updating state: %v", err)
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}
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resourceVersion, peers, err := a.core.GetPeers(a.resourceVersion)
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if err != nil {
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return nil, status.Errorf(codes.Internal, "get peers from store: %v", err)
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}
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if resourceVersion == a.resourceVersion {
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a.logger.Info("ressource version identical, no need to update")
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return &pubproto.TriggerCoordinatorUpdateResponse{}, nil
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}
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err = a.core.UpdatePeers(peers)
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if err != nil {
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return nil, status.Errorf(codes.Internal, "synchronizing peers with vpn state: %v", err)
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}
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a.resourceVersion = resourceVersion
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return &pubproto.TriggerCoordinatorUpdateResponse{}, nil
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}
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func (a *API) triggerCoordinatorUpdate(ctx context.Context, publicIP string) error {
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ctx, cancel := context.WithTimeout(ctx, deadlineDuration)
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defer cancel()
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// We don't verify the peer certificate here, since TriggerNodeUpdate triggers a connection over VPN
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// The target of the rpc needs to already be part of the VPN to process the request, meaning it is trusted
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conn, err := a.dialNoVerify(ctx, net.JoinHostPort(publicIP, endpointAVPNPort))
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if err != nil {
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return err
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}
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defer conn.Close()
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client := pubproto.NewAPIClient(conn)
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_, err = client.TriggerCoordinatorUpdate(ctx, &pubproto.TriggerCoordinatorUpdateRequest{})
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return err
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}
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