746 lines
20 KiB
Go
746 lines
20 KiB
Go
package fsm
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import (
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"github.com/hashicorp/consul/agent/consul/autopilot"
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"github.com/hashicorp/consul/agent/consul/state"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/go-msgpack/codec"
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"github.com/hashicorp/raft"
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)
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func init() {
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registerPersister(persistOSS)
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registerRestorer(structs.RegisterRequestType, restoreRegistration)
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registerRestorer(structs.KVSRequestType, restoreKV)
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registerRestorer(structs.TombstoneRequestType, restoreTombstone)
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registerRestorer(structs.SessionRequestType, restoreSession)
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registerRestorer(structs.ACLRequestType, restoreACL)
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registerRestorer(structs.ACLBootstrapRequestType, restoreACLBootstrap)
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registerRestorer(structs.CoordinateBatchUpdateType, restoreCoordinates)
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registerRestorer(structs.PreparedQueryRequestType, restorePreparedQuery)
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registerRestorer(structs.AutopilotRequestType, restoreAutopilot)
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registerRestorer(structs.IntentionRequestType, restoreLegacyIntention)
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registerRestorer(structs.ConnectCARequestType, restoreConnectCA)
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registerRestorer(structs.ConnectCAProviderStateType, restoreConnectCAProviderState)
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registerRestorer(structs.ConnectCAConfigType, restoreConnectCAConfig)
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registerRestorer(structs.IndexRequestType, restoreIndex)
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registerRestorer(structs.ACLTokenSetRequestType, restoreToken)
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registerRestorer(structs.ACLPolicySetRequestType, restorePolicy)
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registerRestorer(structs.ConfigEntryRequestType, restoreConfigEntry)
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registerRestorer(structs.ACLRoleSetRequestType, restoreRole)
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registerRestorer(structs.ACLBindingRuleSetRequestType, restoreBindingRule)
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registerRestorer(structs.ACLAuthMethodSetRequestType, restoreAuthMethod)
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registerRestorer(structs.FederationStateRequestType, restoreFederationState)
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registerRestorer(structs.SystemMetadataRequestType, restoreSystemMetadata)
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}
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func persistOSS(s *snapshot, sink raft.SnapshotSink, encoder *codec.Encoder) error {
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if err := s.persistNodes(sink, encoder); err != nil {
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return err
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}
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if err := s.persistSessions(sink, encoder); err != nil {
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return err
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}
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if err := s.persistACLs(sink, encoder); err != nil {
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return err
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}
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if err := s.persistKVs(sink, encoder); err != nil {
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return err
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}
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if err := s.persistTombstones(sink, encoder); err != nil {
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return err
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}
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if err := s.persistPreparedQueries(sink, encoder); err != nil {
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return err
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}
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if err := s.persistAutopilot(sink, encoder); err != nil {
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return err
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}
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if err := s.persistLegacyIntentions(sink, encoder); err != nil {
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return err
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}
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if err := s.persistConnectCA(sink, encoder); err != nil {
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return err
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}
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if err := s.persistConnectCAProviderState(sink, encoder); err != nil {
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return err
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}
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if err := s.persistConnectCAConfig(sink, encoder); err != nil {
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return err
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}
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if err := s.persistConfigEntries(sink, encoder); err != nil {
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return err
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}
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if err := s.persistFederationStates(sink, encoder); err != nil {
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return err
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}
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if err := s.persistSystemMetadata(sink, encoder); err != nil {
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return err
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}
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if err := s.persistIndex(sink, encoder); err != nil {
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return err
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}
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return nil
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}
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func (s *snapshot) persistNodes(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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// Get all the nodes
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nodes, err := s.state.Nodes()
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if err != nil {
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return err
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}
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// Register each node
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for node := nodes.Next(); node != nil; node = nodes.Next() {
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n := node.(*structs.Node)
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req := structs.RegisterRequest{
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ID: n.ID,
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Node: n.Node,
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Datacenter: n.Datacenter,
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Address: n.Address,
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TaggedAddresses: n.TaggedAddresses,
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NodeMeta: n.Meta,
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RaftIndex: n.RaftIndex,
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}
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// Register the node itself
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if _, err := sink.Write([]byte{byte(structs.RegisterRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(&req); err != nil {
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return err
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}
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// Register each service this node has
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services, err := s.state.Services(n.Node)
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if err != nil {
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return err
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}
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for service := services.Next(); service != nil; service = services.Next() {
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if _, err := sink.Write([]byte{byte(structs.RegisterRequestType)}); err != nil {
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return err
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}
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req.Service = service.(*structs.ServiceNode).ToNodeService()
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if err := encoder.Encode(&req); err != nil {
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return err
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}
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}
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// Register each check this node has
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req.Service = nil
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checks, err := s.state.Checks(n.Node)
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if err != nil {
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return err
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}
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for check := checks.Next(); check != nil; check = checks.Next() {
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if _, err := sink.Write([]byte{byte(structs.RegisterRequestType)}); err != nil {
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return err
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}
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req.Check = check.(*structs.HealthCheck)
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if err := encoder.Encode(&req); err != nil {
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return err
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}
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}
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}
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// Save the coordinates separately since they are not part of the
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// register request interface. To avoid copying them out, we turn
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// them into batches with a single coordinate each.
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coords, err := s.state.Coordinates()
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if err != nil {
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return err
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}
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for coord := coords.Next(); coord != nil; coord = coords.Next() {
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if _, err := sink.Write([]byte{byte(structs.CoordinateBatchUpdateType)}); err != nil {
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return err
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}
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updates := structs.Coordinates{coord.(*structs.Coordinate)}
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if err := encoder.Encode(&updates); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *snapshot) persistSessions(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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sessions, err := s.state.Sessions()
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if err != nil {
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return err
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}
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for session := sessions.Next(); session != nil; session = sessions.Next() {
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if _, err := sink.Write([]byte{byte(structs.SessionRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(session.(*structs.Session)); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *snapshot) persistACLs(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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tokens, err := s.state.ACLTokens()
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if err != nil {
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return err
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}
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// Don't check expiration times. Wait for explicit deletions.
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for token := tokens.Next(); token != nil; token = tokens.Next() {
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if _, err := sink.Write([]byte{byte(structs.ACLTokenSetRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(token.(*structs.ACLToken)); err != nil {
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return err
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}
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}
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policies, err := s.state.ACLPolicies()
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if err != nil {
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return err
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}
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for policy := policies.Next(); policy != nil; policy = policies.Next() {
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if _, err := sink.Write([]byte{byte(structs.ACLPolicySetRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(policy.(*structs.ACLPolicy)); err != nil {
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return err
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}
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}
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roles, err := s.state.ACLRoles()
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if err != nil {
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return err
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}
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for role := roles.Next(); role != nil; role = roles.Next() {
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if _, err := sink.Write([]byte{byte(structs.ACLRoleSetRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(role.(*structs.ACLRole)); err != nil {
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return err
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}
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}
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rules, err := s.state.ACLBindingRules()
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if err != nil {
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return err
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}
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for rule := rules.Next(); rule != nil; rule = rules.Next() {
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if _, err := sink.Write([]byte{byte(structs.ACLBindingRuleSetRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(rule.(*structs.ACLBindingRule)); err != nil {
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return err
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}
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}
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methods, err := s.state.ACLAuthMethods()
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if err != nil {
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return err
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}
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for method := methods.Next(); method != nil; method = rules.Next() {
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if _, err := sink.Write([]byte{byte(structs.ACLAuthMethodSetRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(method.(*structs.ACLAuthMethod)); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *snapshot) persistKVs(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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entries, err := s.state.KVs()
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if err != nil {
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return err
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}
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for entry := entries.Next(); entry != nil; entry = entries.Next() {
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if _, err := sink.Write([]byte{byte(structs.KVSRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(entry.(*structs.DirEntry)); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *snapshot) persistTombstones(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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stones, err := s.state.Tombstones()
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if err != nil {
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return err
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}
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for stone := stones.Next(); stone != nil; stone = stones.Next() {
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if _, err := sink.Write([]byte{byte(structs.TombstoneRequestType)}); err != nil {
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return err
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}
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// For historical reasons, these are serialized in the snapshots
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// as KV entries. We want to keep the snapshot format compatible
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// with pre-0.6 versions for now.
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s := stone.(*state.Tombstone)
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fake := &structs.DirEntry{
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Key: s.Key,
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RaftIndex: structs.RaftIndex{
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ModifyIndex: s.Index,
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},
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}
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if err := encoder.Encode(fake); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *snapshot) persistPreparedQueries(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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queries, err := s.state.PreparedQueries()
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if err != nil {
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return err
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}
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for _, query := range queries {
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if _, err := sink.Write([]byte{byte(structs.PreparedQueryRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(query); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *snapshot) persistAutopilot(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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config, err := s.state.Autopilot()
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if err != nil {
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return err
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}
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// Make sure we don't write a nil config out to a snapshot.
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if config == nil {
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return nil
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}
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if _, err := sink.Write([]byte{byte(structs.AutopilotRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(config); err != nil {
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return err
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}
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return nil
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}
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func (s *snapshot) persistConnectCA(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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roots, err := s.state.CARoots()
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if err != nil {
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return err
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}
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for _, r := range roots {
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if _, err := sink.Write([]byte{byte(structs.ConnectCARequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(r); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *snapshot) persistConnectCAConfig(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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config, err := s.state.CAConfig()
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if err != nil {
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return err
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}
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// Make sure we don't write a nil config out to a snapshot.
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if config == nil {
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return nil
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}
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if _, err := sink.Write([]byte{byte(structs.ConnectCAConfigType)}); err != nil {
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return err
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}
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if err := encoder.Encode(config); err != nil {
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return err
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}
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return nil
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}
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func (s *snapshot) persistConnectCAProviderState(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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state, err := s.state.CAProviderState()
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if err != nil {
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return err
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}
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for _, r := range state {
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if _, err := sink.Write([]byte{byte(structs.ConnectCAProviderStateType)}); err != nil {
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return err
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}
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if err := encoder.Encode(r); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *snapshot) persistLegacyIntentions(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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//nolint:staticcheck
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ixns, err := s.state.LegacyIntentions()
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if err != nil {
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return err
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}
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for _, ixn := range ixns {
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if _, err := sink.Write([]byte{byte(structs.IntentionRequestType)}); err != nil {
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return err
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}
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if err := encoder.Encode(ixn); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *snapshot) persistConfigEntries(sink raft.SnapshotSink,
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encoder *codec.Encoder) error {
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entries, err := s.state.ConfigEntries()
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if err != nil {
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return err
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}
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for _, entry := range entries {
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if _, err := sink.Write([]byte{byte(structs.ConfigEntryRequestType)}); err != nil {
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return err
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}
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// Encode the entry request without an operation since we don't need it for restoring.
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// The request is used for its custom decoding/encoding logic around the ConfigEntry
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// interface.
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req := &structs.ConfigEntryRequest{
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Entry: entry,
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}
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if err := encoder.Encode(req); err != nil {
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return err
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}
|
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}
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return nil
|
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}
|
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|
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func (s *snapshot) persistFederationStates(sink raft.SnapshotSink, encoder *codec.Encoder) error {
|
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fedStates, err := s.state.FederationStates()
|
|
if err != nil {
|
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return err
|
|
}
|
|
|
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for _, fedState := range fedStates {
|
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if _, err := sink.Write([]byte{byte(structs.FederationStateRequestType)}); err != nil {
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return err
|
|
}
|
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// Encode the entry request without an operation since we don't need it for restoring.
|
|
// The request is used for its custom decoding/encoding logic around the ConfigEntry
|
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// interface.
|
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req := &structs.FederationStateRequest{
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Op: structs.FederationStateUpsert,
|
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State: fedState,
|
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}
|
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if err := encoder.Encode(req); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (s *snapshot) persistSystemMetadata(sink raft.SnapshotSink, encoder *codec.Encoder) error {
|
|
entries, err := s.state.SystemMetadataEntries()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, entry := range entries {
|
|
if _, err := sink.Write([]byte{byte(structs.SystemMetadataRequestType)}); err != nil {
|
|
return err
|
|
}
|
|
if err := encoder.Encode(entry); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (s *snapshot) persistIndex(sink raft.SnapshotSink, encoder *codec.Encoder) error {
|
|
// Get all the indexes
|
|
iter, err := s.state.Indexes()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for raw := iter.Next(); raw != nil; raw = iter.Next() {
|
|
// Prepare the request struct
|
|
idx := raw.(*state.IndexEntry)
|
|
|
|
// Write out a node registration
|
|
sink.Write([]byte{byte(structs.IndexRequestType)})
|
|
if err := encoder.Encode(idx); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreRegistration(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.RegisterRequest
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
if err := restore.Registration(header.LastIndex, &req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreKV(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.DirEntry
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
if err := restore.KVS(&req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreTombstone(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.DirEntry
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
|
|
// For historical reasons, these are serialized in the
|
|
// snapshots as KV entries. We want to keep the snapshot
|
|
// format compatible with pre-0.6 versions for now.
|
|
stone := &state.Tombstone{
|
|
Key: req.Key,
|
|
Index: req.ModifyIndex,
|
|
}
|
|
if err := restore.Tombstone(stone); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreSession(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.Session
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
if err := restore.Session(&req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreACL(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.ACL
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := restore.ACLToken(req.Convert()); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// DEPRECATED (ACL-Legacy-Compat) - remove once v1 acl compat is removed
|
|
func restoreACLBootstrap(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.ACLBootstrap
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
|
|
// With V2 ACLs whether bootstrapping has been performed is stored in the index table like nomad
|
|
// so this "restores" into that index table.
|
|
return restore.IndexRestore(&state.IndexEntry{Key: "acl-token-bootstrap", Value: req.ModifyIndex})
|
|
}
|
|
|
|
func restoreCoordinates(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.Coordinates
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
if err := restore.Coordinates(header.LastIndex, req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restorePreparedQuery(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.PreparedQuery
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
if err := restore.PreparedQuery(&req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreAutopilot(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req autopilot.Config
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
if err := restore.Autopilot(&req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreLegacyIntention(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.Intention
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
//nolint:staticcheck
|
|
if err := restore.LegacyIntention(&req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreConnectCA(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.CARoot
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
if err := restore.CARoot(&req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreConnectCAProviderState(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.CAConsulProviderState
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
if err := restore.CAProviderState(&req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreConnectCAConfig(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.CAConfiguration
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
if err := restore.CAConfig(&req); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func restoreIndex(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req state.IndexEntry
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
return restore.IndexRestore(&req)
|
|
}
|
|
|
|
func restoreToken(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.ACLToken
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
|
|
// DEPRECATED (ACL-Legacy-Compat)
|
|
if req.Rules != "" {
|
|
// When we restore a snapshot we may have to correct old HCL in legacy
|
|
// tokens to prevent the in-memory representation from using an older
|
|
// syntax.
|
|
structs.SanitizeLegacyACLToken(&req)
|
|
}
|
|
|
|
// only set if unset - mitigates a bug where converted legacy tokens could end up without a hash
|
|
req.SetHash(false)
|
|
|
|
return restore.ACLToken(&req)
|
|
}
|
|
|
|
func restorePolicy(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.ACLPolicy
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
return restore.ACLPolicy(&req)
|
|
}
|
|
|
|
func restoreConfigEntry(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.ConfigEntryRequest
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
return restore.ConfigEntry(req.Entry)
|
|
}
|
|
|
|
func restoreRole(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.ACLRole
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
return restore.ACLRole(&req)
|
|
}
|
|
|
|
func restoreBindingRule(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.ACLBindingRule
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
return restore.ACLBindingRule(&req)
|
|
}
|
|
|
|
func restoreAuthMethod(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.ACLAuthMethod
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
return restore.ACLAuthMethod(&req)
|
|
}
|
|
|
|
func restoreFederationState(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.FederationStateRequest
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
return restore.FederationState(req.State)
|
|
}
|
|
|
|
func restoreSystemMetadata(header *SnapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
|
|
var req structs.SystemMetadataEntry
|
|
if err := decoder.Decode(&req); err != nil {
|
|
return err
|
|
}
|
|
return restore.SystemMetadataEntry(&req)
|
|
}
|