454 lines
16 KiB
Go
454 lines
16 KiB
Go
package fsm
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import (
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"fmt"
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"time"
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"github.com/armon/go-metrics"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/consul/api"
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)
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func init() {
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registerCommand(structs.RegisterRequestType, (*FSM).applyRegister)
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registerCommand(structs.DeregisterRequestType, (*FSM).applyDeregister)
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registerCommand(structs.KVSRequestType, (*FSM).applyKVSOperation)
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registerCommand(structs.SessionRequestType, (*FSM).applySessionOperation)
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// DEPRECATED (ACL-Legacy-Compat) - Only needed for v1 ACL compat
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registerCommand(structs.ACLRequestType, (*FSM).applyACLOperation)
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registerCommand(structs.TombstoneRequestType, (*FSM).applyTombstoneOperation)
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registerCommand(structs.CoordinateBatchUpdateType, (*FSM).applyCoordinateBatchUpdate)
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registerCommand(structs.PreparedQueryRequestType, (*FSM).applyPreparedQueryOperation)
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registerCommand(structs.TxnRequestType, (*FSM).applyTxn)
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registerCommand(structs.AutopilotRequestType, (*FSM).applyAutopilotUpdate)
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registerCommand(structs.IntentionRequestType, (*FSM).applyIntentionOperation)
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registerCommand(structs.ConnectCARequestType, (*FSM).applyConnectCAOperation)
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registerCommand(structs.ACLTokenSetRequestType, (*FSM).applyACLTokenSetOperation)
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registerCommand(structs.ACLTokenDeleteRequestType, (*FSM).applyACLTokenDeleteOperation)
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registerCommand(structs.ACLBootstrapRequestType, (*FSM).applyACLTokenBootstrap)
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registerCommand(structs.ACLPolicySetRequestType, (*FSM).applyACLPolicySetOperation)
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registerCommand(structs.ACLPolicyDeleteRequestType, (*FSM).applyACLPolicyDeleteOperation)
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registerCommand(structs.ConnectCALeafRequestType, (*FSM).applyConnectCALeafOperation)
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registerCommand(structs.ConfigEntryRequestType, (*FSM).applyConfigEntryOperation)
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}
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func (c *FSM) applyRegister(buf []byte, index uint64) interface{} {
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defer metrics.MeasureSince([]string{"fsm", "register"}, time.Now())
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var req structs.RegisterRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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// Apply all updates in a single transaction
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if err := c.state.EnsureRegistration(index, &req); err != nil {
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c.logger.Printf("[WARN] consul.fsm: EnsureRegistration failed: %v", err)
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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 (c *FSM) applyDeregister(buf []byte, index uint64) interface{} {
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defer metrics.MeasureSince([]string{"fsm", "deregister"}, time.Now())
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var req structs.DeregisterRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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// Either remove the service entry or the whole node. The precedence
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// here is also baked into vetDeregisterWithACL() in acl.go, so if you
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// make changes here, be sure to also adjust the code over there.
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if req.ServiceID != "" {
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if err := c.state.DeleteService(index, req.Node, req.ServiceID); err != nil {
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c.logger.Printf("[WARN] consul.fsm: DeleteNodeService failed: %v", err)
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return err
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}
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} else if req.CheckID != "" {
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if err := c.state.DeleteCheck(index, req.Node, req.CheckID); err != nil {
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c.logger.Printf("[WARN] consul.fsm: DeleteNodeCheck failed: %v", err)
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return err
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}
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} else {
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if err := c.state.DeleteNode(index, req.Node); err != nil {
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c.logger.Printf("[WARN] consul.fsm: DeleteNode failed: %v", err)
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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 (c *FSM) applyKVSOperation(buf []byte, index uint64) interface{} {
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var req structs.KVSRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "kvs"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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switch req.Op {
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case api.KVSet:
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return c.state.KVSSet(index, &req.DirEnt)
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case api.KVDelete:
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return c.state.KVSDelete(index, req.DirEnt.Key)
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case api.KVDeleteCAS:
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act, err := c.state.KVSDeleteCAS(index, req.DirEnt.ModifyIndex, req.DirEnt.Key)
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if err != nil {
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return err
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}
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return act
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case api.KVDeleteTree:
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return c.state.KVSDeleteTree(index, req.DirEnt.Key)
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case api.KVCAS:
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act, err := c.state.KVSSetCAS(index, &req.DirEnt)
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if err != nil {
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return err
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}
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return act
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case api.KVLock:
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act, err := c.state.KVSLock(index, &req.DirEnt)
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if err != nil {
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return err
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}
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return act
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case api.KVUnlock:
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act, err := c.state.KVSUnlock(index, &req.DirEnt)
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if err != nil {
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return err
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}
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return act
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default:
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err := fmt.Errorf("Invalid KVS operation '%s'", req.Op)
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c.logger.Printf("[WARN] consul.fsm: %v", err)
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return err
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}
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}
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func (c *FSM) applySessionOperation(buf []byte, index uint64) interface{} {
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var req structs.SessionRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "session"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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switch req.Op {
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case structs.SessionCreate:
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if err := c.state.SessionCreate(index, &req.Session); err != nil {
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return err
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}
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return req.Session.ID
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case structs.SessionDestroy:
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return c.state.SessionDestroy(index, req.Session.ID)
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default:
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c.logger.Printf("[WARN] consul.fsm: Invalid Session operation '%s'", req.Op)
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return fmt.Errorf("Invalid Session operation '%s'", req.Op)
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}
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}
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// DEPRECATED (ACL-Legacy-Compat) - Only needed for legacy compat
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func (c *FSM) applyACLOperation(buf []byte, index uint64) interface{} {
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// TODO (ACL-Legacy-Compat) - Should we warn here somehow about using deprecated features
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// maybe emit a second metric?
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var req structs.ACLRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "acl"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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switch req.Op {
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case structs.ACLBootstrapInit:
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enabled, _, err := c.state.CanBootstrapACLToken()
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if err != nil {
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return err
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}
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return enabled
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case structs.ACLBootstrapNow:
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// This is a bootstrap request from a non-upgraded node
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if err := c.state.ACLBootstrap(index, 0, req.ACL.Convert(), true); err != nil {
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return err
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}
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if _, token, err := c.state.ACLTokenGetBySecret(nil, req.ACL.ID); err != nil {
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return err
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} else {
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acl, err := token.Convert()
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if err != nil {
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return err
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}
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return acl
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}
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case structs.ACLForceSet, structs.ACLSet:
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if err := c.state.ACLTokenSet(index, req.ACL.Convert(), true); err != nil {
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return err
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}
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return req.ACL.ID
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case structs.ACLDelete:
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return c.state.ACLTokenDeleteBySecret(index, req.ACL.ID)
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default:
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c.logger.Printf("[WARN] consul.fsm: Invalid ACL operation '%s'", req.Op)
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return fmt.Errorf("Invalid ACL operation '%s'", req.Op)
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}
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}
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func (c *FSM) applyTombstoneOperation(buf []byte, index uint64) interface{} {
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var req structs.TombstoneRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "tombstone"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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switch req.Op {
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case structs.TombstoneReap:
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return c.state.ReapTombstones(req.ReapIndex)
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default:
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c.logger.Printf("[WARN] consul.fsm: Invalid Tombstone operation '%s'", req.Op)
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return fmt.Errorf("Invalid Tombstone operation '%s'", req.Op)
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}
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}
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// applyCoordinateBatchUpdate processes a batch of coordinate updates and applies
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// them in a single underlying transaction. This interface isn't 1:1 with the outer
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// update interface that the coordinate endpoint exposes, so we made it single
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// purpose and avoided the opcode convention.
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func (c *FSM) applyCoordinateBatchUpdate(buf []byte, index uint64) interface{} {
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var updates structs.Coordinates
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if err := structs.Decode(buf, &updates); err != nil {
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panic(fmt.Errorf("failed to decode batch updates: %v", err))
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}
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defer metrics.MeasureSince([]string{"fsm", "coordinate", "batch-update"}, time.Now())
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if err := c.state.CoordinateBatchUpdate(index, updates); 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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// applyPreparedQueryOperation applies the given prepared query operation to the
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// state store.
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func (c *FSM) applyPreparedQueryOperation(buf []byte, index uint64) interface{} {
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var req structs.PreparedQueryRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "prepared-query"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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switch req.Op {
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case structs.PreparedQueryCreate, structs.PreparedQueryUpdate:
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return c.state.PreparedQuerySet(index, req.Query)
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case structs.PreparedQueryDelete:
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return c.state.PreparedQueryDelete(index, req.Query.ID)
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default:
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c.logger.Printf("[WARN] consul.fsm: Invalid PreparedQuery operation '%s'", req.Op)
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return fmt.Errorf("Invalid PreparedQuery operation '%s'", req.Op)
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}
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}
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func (c *FSM) applyTxn(buf []byte, index uint64) interface{} {
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var req structs.TxnRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSince([]string{"fsm", "txn"}, time.Now())
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results, errors := c.state.TxnRW(index, req.Ops)
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return structs.TxnResponse{
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Results: results,
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Errors: errors,
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}
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}
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func (c *FSM) applyAutopilotUpdate(buf []byte, index uint64) interface{} {
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var req structs.AutopilotSetConfigRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSince([]string{"fsm", "autopilot"}, time.Now())
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if req.CAS {
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act, err := c.state.AutopilotCASConfig(index, req.Config.ModifyIndex, &req.Config)
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if err != nil {
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return err
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}
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return act
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}
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return c.state.AutopilotSetConfig(index, &req.Config)
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}
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// applyIntentionOperation applies the given intention operation to the state store.
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func (c *FSM) applyIntentionOperation(buf []byte, index uint64) interface{} {
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var req structs.IntentionRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "intention"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "intention"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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switch req.Op {
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case structs.IntentionOpCreate, structs.IntentionOpUpdate:
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return c.state.IntentionSet(index, req.Intention)
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case structs.IntentionOpDelete:
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return c.state.IntentionDelete(index, req.Intention.ID)
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default:
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c.logger.Printf("[WARN] consul.fsm: Invalid Intention operation '%s'", req.Op)
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return fmt.Errorf("Invalid Intention operation '%s'", req.Op)
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}
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}
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// applyConnectCAOperation applies the given CA operation to the state store.
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func (c *FSM) applyConnectCAOperation(buf []byte, index uint64) interface{} {
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var req structs.CARequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "ca"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "ca"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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switch req.Op {
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case structs.CAOpSetConfig:
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if req.Config.ModifyIndex != 0 {
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act, err := c.state.CACheckAndSetConfig(index, req.Config.ModifyIndex, req.Config)
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if err != nil {
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return err
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}
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return act
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}
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return c.state.CASetConfig(index, req.Config)
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case structs.CAOpSetRoots:
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act, err := c.state.CARootSetCAS(index, req.Index, req.Roots)
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if err != nil {
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return err
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}
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return act
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case structs.CAOpSetProviderState:
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act, err := c.state.CASetProviderState(index, req.ProviderState)
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if err != nil {
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return err
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}
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return act
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case structs.CAOpDeleteProviderState:
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if err := c.state.CADeleteProviderState(req.ProviderState.ID); err != nil {
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return err
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}
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return true
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case structs.CAOpSetRootsAndConfig:
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act, err := c.state.CARootSetCAS(index, req.Index, req.Roots)
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if err != nil {
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return err
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}
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if !act {
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return act
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}
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act, err = c.state.CACheckAndSetConfig(index+1, req.Config.ModifyIndex, req.Config)
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if err != nil {
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return err
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}
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return act
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default:
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c.logger.Printf("[WARN] consul.fsm: Invalid CA operation '%s'", req.Op)
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return fmt.Errorf("Invalid CA operation '%s'", req.Op)
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}
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}
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func (c *FSM) applyConnectCALeafOperation(buf []byte, index uint64) interface{} {
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var req structs.CALeafRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "ca", "leaf"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: string(req.Op)}})
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switch req.Op {
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case structs.CALeafOpIncrementIndex:
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if err := c.state.CALeafSetIndex(index); err != nil {
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return err
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}
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return index
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default:
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c.logger.Printf("[WARN consul.fsm: Invalid CA Leaf operation '%s'", req.Op)
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return fmt.Errorf("Invalid CA operation '%s'", req.Op)
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}
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}
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func (c *FSM) applyACLTokenSetOperation(buf []byte, index uint64) interface{} {
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var req structs.ACLTokenBatchSetRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "acl", "token"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: "upsert"}})
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return c.state.ACLTokenBatchSet(index, req.Tokens, req.CAS)
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}
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func (c *FSM) applyACLTokenDeleteOperation(buf []byte, index uint64) interface{} {
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var req structs.ACLTokenBatchDeleteRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "acl", "token"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: "delete"}})
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return c.state.ACLTokenBatchDelete(index, req.TokenIDs)
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}
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func (c *FSM) applyACLTokenBootstrap(buf []byte, index uint64) interface{} {
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var req structs.ACLTokenBootstrapRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "acl", "token"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: "bootstrap"}})
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return c.state.ACLBootstrap(index, req.ResetIndex, &req.Token, false)
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}
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func (c *FSM) applyACLPolicySetOperation(buf []byte, index uint64) interface{} {
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var req structs.ACLPolicyBatchSetRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "acl", "policy"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: "upsert"}})
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return c.state.ACLPolicyBatchSet(index, req.Policies)
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}
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func (c *FSM) applyACLPolicyDeleteOperation(buf []byte, index uint64) interface{} {
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var req structs.ACLPolicyBatchDeleteRequest
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "acl", "policy"}, time.Now(),
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[]metrics.Label{{Name: "op", Value: "delete"}})
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return c.state.ACLPolicyBatchDelete(index, req.PolicyIDs)
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}
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func (c *FSM) applyConfigEntryOperation(buf []byte, index uint64) interface{} {
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req := structs.ConfigEntryRequest{
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Entry: &structs.ProxyConfigEntry{},
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}
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if err := structs.Decode(buf, &req); err != nil {
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panic(fmt.Errorf("failed to decode request: %v", err))
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}
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switch req.Op {
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case structs.ConfigEntryUpsert:
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "config_entry", req.Entry.GetKind()}, time.Now(),
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[]metrics.Label{{Name: "op", Value: "upsert"}})
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return c.state.EnsureConfigEntry(index, req.Entry)
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case structs.ConfigEntryDelete:
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defer metrics.MeasureSinceWithLabels([]string{"fsm", "config_entry", req.Entry.GetKind()}, time.Now(),
|
|
[]metrics.Label{{Name: "op", Value: "delete"}})
|
|
return c.state.DeleteConfigEntry(index, req.Entry.GetKind(), req.Entry.GetName())
|
|
default:
|
|
return fmt.Errorf("invalid config entry operation type: %v", req.Op)
|
|
}
|
|
}
|