Remove deprecated code

command/agent/node_endpoint.go

@@ -108,7 +108,7 @@ func (s *HTTPServer) nodeToggleDrain(resp http.ResponseWriter, req *http.Request
 
 	var drainRequest api.NodeUpdateDrainRequest
 
-	// COMPAT: Remove in 0.9. Allow the old style enable query param.
+	// COMPAT: Remove in 0.10. Allow the old style enable query param.
 	// Get the enable parameter
 	enableRaw := req.URL.Query().Get("enable")
 	var enable bool

command/alloc_status.go

@@ -235,7 +235,7 @@ func formatAllocBasicInfo(alloc *api.Allocation, client *api.Client, uuidLength
 		fmt.Sprintf("Node ID|%s", limit(alloc.NodeID, uuidLength)),
 		fmt.Sprintf("Node Name|%s", alloc.NodeName),
 		fmt.Sprintf("Job ID|%s", alloc.JobID),
-		fmt.Sprintf("Job Version|%d", getVersion(alloc.Job)),
+		fmt.Sprintf("Job Version|%d", alloc.Job.Version),
 		fmt.Sprintf("Client Status|%s", alloc.ClientStatus),
 		fmt.Sprintf("Client Description|%s", alloc.ClientDescription),
 		fmt.Sprintf("Desired Status|%s", alloc.DesiredStatus),

command/helpers.go

@@ -438,32 +438,6 @@ func (j *JobGetter) ApiJob(jpath string) (*api.Job, error) {
 	return jobStruct, nil
 }
 
-// COMPAT: Remove in 0.7.0
-// Nomad 0.6.0 introduces the submit time field so CLI's interacting with
-// older versions of Nomad would SEGFAULT as reported here:
-// https://github.com/hashicorp/nomad/issues/2918
-// getSubmitTime returns a submit time of the job converting to time.Time
-func getSubmitTime(job *api.Job) time.Time {
-	if job.SubmitTime != nil {
-		return time.Unix(0, *job.SubmitTime)
-	}
-
-	return time.Time{}
-}
-
-// COMPAT: Remove in 0.7.0
-// Nomad 0.6.0 introduces job Versions so CLI's interacting with
-// older versions of Nomad would SEGFAULT as reported here:
-// https://github.com/hashicorp/nomad/issues/2918
-// getVersion returns a version of the job in safely.
-func getVersion(job *api.Job) uint64 {
-	if job.Version != nil {
-		return *job.Version
-	}
-
-	return 0
-}
-
 // mergeAutocompleteFlags is used to join multiple flag completion sets.
 func mergeAutocompleteFlags(flags ...complete.Flags) complete.Flags {
 	merged := make(map[string]complete.Predictor, len(flags))

command/job_status.go

@@ -169,7 +169,7 @@ func (c *JobStatusCommand) Run(args []string) int {
 	basic := []string{
 		fmt.Sprintf("ID|%s", *job.ID),
 		fmt.Sprintf("Name|%s", *job.Name),
-		fmt.Sprintf("Submit Date|%s", formatTime(getSubmitTime(job))),
+		fmt.Sprintf("Submit Date|%s", formatTime(time.Unix(0, *job.SubmitTime))),
 		fmt.Sprintf("Type|%s", *job.Type),
 		fmt.Sprintf("Priority|%d", *job.Priority),
 		fmt.Sprintf("Datacenters|%s", strings.Join(job.Datacenters, ",")),
@@ -462,7 +462,7 @@ func formatAllocList(allocations []*api.Allocation, verbose bool, uuidLength int
 				limit(alloc.EvalID, uuidLength),
 				limit(alloc.NodeID, uuidLength),
 				alloc.TaskGroup,
-				getVersion(alloc.Job),
+				alloc.Job.Version,
 				alloc.DesiredStatus,
 				alloc.ClientStatus,
 				formatUnixNanoTime(alloc.CreateTime),
@@ -478,7 +478,7 @@ func formatAllocList(allocations []*api.Allocation, verbose bool, uuidLength int
 				limit(alloc.ID, uuidLength),
 				limit(alloc.NodeID, uuidLength),
 				alloc.TaskGroup,
-				getVersion(alloc.Job),
+				alloc.Job.Version,
 				alloc.DesiredStatus,
 				alloc.ClientStatus,
 				createTimePretty,

nomad/fsm.go

@@ -1135,11 +1135,6 @@ func (n *nomadFSM) Restore(old io.ReadCloser) error {
 				return err
 			}
 
-			// COMPAT: Handle upgrade to v0.7.0
-			if eval.Namespace == "" {
-				eval.Namespace = structs.DefaultNamespace
-			}
-
 			if err := restore.EvalRestore(eval); err != nil {
 				return err
 			}
@@ -1150,11 +1145,6 @@ func (n *nomadFSM) Restore(old io.ReadCloser) error {
 				return err
 			}
 
-			// COMPAT: Handle upgrade to v0.7.0
-			if alloc.Namespace == "" {
-				alloc.Namespace = structs.DefaultNamespace
-			}
-
 			if err := restore.AllocRestore(alloc); err != nil {
 				return err
 			}
@@ -1174,11 +1164,6 @@ func (n *nomadFSM) Restore(old io.ReadCloser) error {
 				return err
 			}
 
-			// COMPAT: Handle upgrade to v0.7.0
-			if launch.Namespace == "" {
-				launch.Namespace = structs.DefaultNamespace
-			}
-
 			if err := restore.PeriodicLaunchRestore(launch); err != nil {
 				return err
 			}
@@ -1189,11 +1174,6 @@ func (n *nomadFSM) Restore(old io.ReadCloser) error {
 				return err
 			}
 
-			// COMPAT: Handle upgrade to v0.7.0
-			if summary.Namespace == "" {
-				summary.Namespace = structs.DefaultNamespace
-			}
-
 			if err := restore.JobSummaryRestore(summary); err != nil {
 				return err
 			}
@@ -1213,11 +1193,6 @@ func (n *nomadFSM) Restore(old io.ReadCloser) error {
 				return err
 			}
 
-			// COMPAT: Handle upgrade to v0.7.0
-			if version.Namespace == "" {
-				version.Namespace = structs.DefaultNamespace
-			}
-
 			if err := restore.JobVersionRestore(version); err != nil {
 				return err
 			}
@@ -1228,11 +1203,6 @@ func (n *nomadFSM) Restore(old io.ReadCloser) error {
 				return err
 			}
 
-			// COMPAT: Handle upgrade to v0.7.0
-			if deployment.Namespace == "" {
-				deployment.Namespace = structs.DefaultNamespace
-			}
-
 			if err := restore.DeploymentRestore(deployment); err != nil {
 				return err
 			}
@@ -1280,30 +1250,6 @@ func (n *nomadFSM) Restore(old io.ReadCloser) error {
 
 	restore.Commit()
 
-	// Create Job Summaries
-	// COMPAT 0.4 -> 0.4.1
-	// We can remove this in 0.5. This exists so that the server creates job
-	// summaries if they were not present previously. When users upgrade to 0.5
-	// from 0.4.1, the snapshot will contain job summaries so it will be safe to
-	// remove this block.
-	index, err := newState.Index("job_summary")
-	if err != nil {
-		return fmt.Errorf("couldn't fetch index of job summary table: %v", err)
-	}
-
-	// If the index is 0 that means there is no job summary in the snapshot so
-	// we will have to create them
-	if index == 0 {
-		// query the latest index
-		latestIndex, err := newState.LatestIndex()
-		if err != nil {
-			return fmt.Errorf("unable to query latest index: %v", index)
-		}
-		if err := newState.ReconcileJobSummaries(latestIndex); err != nil {
-			return fmt.Errorf("error reconciling summaries: %v", err)
-		}
-	}
-
 	// COMPAT Remove in 0.10
 	// Clean up active deployments that do not have a job
 	if err := n.failLeakedDeployments(newState); err != nil {

nomad/fsm_test.go

@@ -2701,47 +2701,6 @@ func TestFSM_SnapshotRestore_SchedulerConfiguration(t *testing.T) {
 
 }
 
-func TestFSM_SnapshotRestore_AddMissingSummary(t *testing.T) {
-	t.Parallel()
-	// Add some state
-	fsm := testFSM(t)
-	state := fsm.State()
-
-	// make an allocation
-	alloc := mock.Alloc()
-	state.UpsertJob(1010, alloc.Job)
-	state.UpsertAllocs(1011, []*structs.Allocation{alloc})
-
-	// Delete the summary
-	state.DeleteJobSummary(1040, alloc.Namespace, alloc.Job.ID)
-
-	// Delete the index
-	if err := state.RemoveIndex("job_summary"); err != nil {
-		t.Fatalf("err: %v", err)
-	}
-
-	fsm2 := testSnapshotRestore(t, fsm)
-	state2 := fsm2.State()
-	latestIndex, _ := state.LatestIndex()
-
-	ws := memdb.NewWatchSet()
-	out, _ := state2.JobSummaryByID(ws, alloc.Namespace, alloc.Job.ID)
-	expected := structs.JobSummary{
-		JobID:     alloc.Job.ID,
-		Namespace: alloc.Job.Namespace,
-		Summary: map[string]structs.TaskGroupSummary{
-			"web": {
-				Starting: 1,
-			},
-		},
-		CreateIndex: 1010,
-		ModifyIndex: latestIndex,
-	}
-	if !reflect.DeepEqual(&expected, out) {
-		t.Fatalf("expected: %#v, actual: %#v", &expected, out)
-	}
-}
-
 func TestFSM_ReconcileSummaries(t *testing.T) {
 	t.Parallel()
 	// Add some state

nomad/leader.go

@@ -268,15 +268,6 @@ func (s *Server) establishLeadership(stopCh chan struct{}) error {
 		return err
 	}
 
-	// COMPAT 0.4 - 0.4.1
-	// Reconcile the summaries of the registered jobs. We reconcile summaries
-	// only if the server is 0.4.1 since summaries are not present in 0.4 they
-	// might be incorrect after upgrading to 0.4.1 the summaries might not be
-	// correct
-	if err := s.reconcileJobSummaries(); err != nil {
-		return fmt.Errorf("unable to reconcile job summaries: %v", err)
-	}
-
 	// Start replication of ACLs and Policies if they are enabled,
 	// and we are not the authoritative region.
 	if s.config.ACLEnabled && s.config.Region != s.config.AuthoritativeRegion {
@@ -798,25 +789,6 @@ func (s *Server) reconcileMember(member serf.Member) error {
 	return nil
 }
 
-// reconcileJobSummaries reconciles the summaries of all the jobs registered in
-// the system
-// COMPAT 0.4 -> 0.4.1
-func (s *Server) reconcileJobSummaries() error {
-	index, err := s.fsm.state.LatestIndex()
-	if err != nil {
-		return fmt.Errorf("unable to read latest index: %v", err)
-	}
-	s.logger.Debug("leader reconciling job summaries", "index", index)
-
-	args := &structs.GenericResponse{}
-	msg := structs.ReconcileJobSummariesRequestType | structs.IgnoreUnknownTypeFlag
-	if _, _, err = s.raftApply(msg, args); err != nil {
-		return fmt.Errorf("reconciliation of job summaries failed: %v", err)
-	}
-
-	return nil
-}
-
 // addRaftPeer is used to add a new Raft peer when a Nomad server joins
 func (s *Server) addRaftPeer(m serf.Member, parts *serverParts) error {
 	// Check for possibility of multiple bootstrap nodes