open-nomad/nomad/plan_endpoint.go
Luiz Aoqui 0e09b120e4
fix mTLS certificate check on agent to agent RPCs (#11998)
PR #11956 implemented a new mTLS RPC check to validate the role of the
certificate used in the request, but further testing revealed two flaws:

  1. client-only endpoints did not accept server certificates so the
     request would fail when forwarded from one server to another.
  2. the certificate was being checked after the request was forwarded,
     so the check would happen over the server certificate, not the
     actual source.

This commit checks for the desired mTLS level, where the client level
accepts both, a server or a client certificate. It also validates the
cercertificate before the request is forwarded.
2022-02-04 20:35:20 -05:00

67 lines
1.6 KiB
Go

package nomad
import (
"fmt"
"time"
metrics "github.com/armon/go-metrics"
log "github.com/hashicorp/go-hclog"
"github.com/hashicorp/nomad/nomad/structs"
)
// Plan endpoint is used for plan interactions
type Plan struct {
srv *Server
logger log.Logger
// ctx provides context regarding the underlying connection
ctx *RPCContext
}
// Submit is used to submit a plan to the leader
func (p *Plan) Submit(args *structs.PlanRequest, reply *structs.PlanResponse) error {
// Ensure the connection was initiated by another server if TLS is used.
err := validateTLSCertificateLevel(p.srv, p.ctx, tlsCertificateLevelServer)
if err != nil {
return err
}
if done, err := p.srv.forward("Plan.Submit", args, args, reply); done {
return err
}
defer metrics.MeasureSince([]string{"nomad", "plan", "submit"}, time.Now())
if args.Plan == nil {
return fmt.Errorf("cannot submit nil plan")
}
// Pause the Nack timer for the eval as it is making progress as long as it
// is in the plan queue. We resume immediately after we get a result to
// handle the case that the receiving worker dies.
plan := args.Plan
id := plan.EvalID
token := plan.EvalToken
if err := p.srv.evalBroker.PauseNackTimeout(id, token); err != nil {
return err
}
defer p.srv.evalBroker.ResumeNackTimeout(id, token)
// Submit the plan to the queue
future, err := p.srv.planQueue.Enqueue(plan)
if err != nil {
return err
}
// Wait for the results
result, err := future.Wait()
if err != nil {
return err
}
// Package the result
reply.Result = result
reply.Index = result.AllocIndex
return nil
}