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package info
import (
"context"
"errors"
"gitlab.com/gitlab-org/gitaly/v15/internal/helper"
"gitlab.com/gitlab-org/gitaly/v15/internal/praefect/commonerr"
"gitlab.com/gitlab-org/gitaly/v15/internal/praefect/config"
"gitlab.com/gitlab-org/gitaly/v15/internal/praefect/datastore"
"gitlab.com/gitlab-org/gitaly/v15/internal/praefect/service"
"gitlab.com/gitlab-org/gitaly/v15/proto/go/gitalypb"
)
// AssignmentStore is an interface for getting repository host node assignments.
//
// This duplicates the praefect.AssignmentGetter type as it is not possible to import anything from
// `praefect` to `info` packages due to cyclic dependencies.
type AssignmentStore interface {
// GetHostAssignments returns the names of the storages assigned to host the repository.
// The primary node must always be assigned.
GetHostAssignments(ctx context.Context, virtualStorage string, repositoryID int64) ([]string, error)
// SetReplicationFactor sets a repository's replication factor and returns the current assignments.
SetReplicationFactor(ctx context.Context, virtualStorage, relativePath string, replicationFactor int) ([]string, error)
}
// PrimaryGetter is an interface for getting a primary of a repository.
//
// This duplicates the praefect.PrimaryGetter type as it is not possible to import anything from
// `praefect` to `info` packages due to cyclic dependencies.
type PrimaryGetter interface {
// GetPrimary returns the primary storage for a given repository.
GetPrimary(ctx context.Context, virtualStorage string, repositoryID int64) (string, error)
}
// Server is a InfoService server
type Server struct {
gitalypb.UnimplementedPraefectInfoServiceServer
conf config.Config
rs datastore.RepositoryStore
assignmentStore AssignmentStore
conns service.Connections
primaryGetter PrimaryGetter
}
// NewServer creates a new instance of a grpc InfoServiceServer
func NewServer(
conf config.Config,
rs datastore.RepositoryStore,
assignmentStore AssignmentStore,
conns service.Connections,
primaryGetter PrimaryGetter,
) gitalypb.PraefectInfoServiceServer {
return &Server{
conf: conf,
rs: rs,
assignmentStore: assignmentStore,
conns: conns,
primaryGetter: primaryGetter,
}
}
//nolint: stylecheck // This is unintentionally missing documentation.
func (s *Server) SetAuthoritativeStorage(ctx context.Context, req *gitalypb.SetAuthoritativeStorageRequest) (*gitalypb.SetAuthoritativeStorageResponse, error) {
storages := s.conf.StorageNames()[req.VirtualStorage]
if storages == nil {
return nil, helper.ErrInvalidArgumentf("unknown virtual storage: %q", req.VirtualStorage)
}
foundStorage := false
for i := range storages {
if storages[i] == req.AuthoritativeStorage {
foundStorage = true
break
}
}
if !foundStorage {
return nil, helper.ErrInvalidArgumentf("unknown authoritative storage: %q", req.AuthoritativeStorage)
}
if err := s.rs.SetAuthoritativeReplica(ctx, req.VirtualStorage, req.RelativePath, req.AuthoritativeStorage); err != nil {
if errors.As(err, &commonerr.RepositoryNotFoundError{}) {
return nil, helper.ErrInvalidArgumentf("repository %q does not exist on virtual storage %q", req.RelativePath, req.VirtualStorage)
}
return nil, helper.ErrInternal(err)
}
return &gitalypb.SetAuthoritativeStorageResponse{}, nil
}
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