Merge pull request #7650 from hashicorp/dnephin/remove-id-init-methods

agent/structs: Remove ServiceID.Init and CheckID.Init

agent/agent.go

@@ -2456,8 +2456,7 @@ func (a *Agent) addServiceInternal(req *addServiceRequest, snap map[structs.Chec
 			}
 		}
 
-		var cid structs.CheckID
-		cid.Init(types.CheckID(checkID), &service.EnterpriseMeta)
+		cid := structs.NewCheckID(types.CheckID(checkID), &service.EnterpriseMeta)
 		existingChecks[cid] = true
 
 		name := chkType.Name
@@ -2531,8 +2530,7 @@ func (a *Agent) addServiceInternal(req *addServiceRequest, snap map[structs.Chec
 
 	// If a proxy service wishes to expose checks, check targets need to be rerouted to the proxy listener
 	// This needs to be called after chkTypes are added to the agent, to avoid being overwritten
-	var psid structs.ServiceID
-	psid.Init(service.Proxy.DestinationServiceID, &service.EnterpriseMeta)
+	psid := structs.NewServiceID(service.Proxy.DestinationServiceID, &service.EnterpriseMeta)
 
 	if service.Proxy.Expose.Checks {
 		err := a.rerouteExposedChecks(psid, service.Address)
@@ -2740,8 +2738,7 @@ func (a *Agent) removeServiceLocked(serviceID structs.ServiceID, persist bool) e
 	svc := a.State.Service(serviceID)
 
 	if svc != nil {
-		var psid structs.ServiceID
-		psid.Init(svc.Proxy.DestinationServiceID, &svc.EnterpriseMeta)
+		psid := structs.NewServiceID(svc.Proxy.DestinationServiceID, &svc.EnterpriseMeta)
 		a.resetExposedChecks(psid)
 	}
 
@@ -2784,8 +2781,7 @@ func (a *Agent) removeServiceLocked(serviceID structs.ServiceID, persist bool) e
 }
 
 func (a *Agent) removeServiceSidecars(serviceID structs.ServiceID, persist bool) error {
-	var sidecarSID structs.ServiceID
-	sidecarSID.Init(a.sidecarServiceID(serviceID.ID), &serviceID.EnterpriseMeta)
+	sidecarSID := structs.NewServiceID(a.sidecarServiceID(serviceID.ID), &serviceID.EnterpriseMeta)
 	if sidecar := a.State.Service(sidecarSID); sidecar != nil {
 		// Double check that it's not just an ID collision and we actually added
 		// this from a sidecar.
@@ -3138,8 +3134,7 @@ func (a *Agent) addCheck(check *structs.HealthCheck, chkType *structs.CheckType,
 				rpcReq.Token = token
 			}
 
-			var aliasServiceID structs.ServiceID
-			aliasServiceID.Init(chkType.AliasService, &check.EnterpriseMeta)
+			aliasServiceID := structs.NewServiceID(chkType.AliasService, &check.EnterpriseMeta)
 			chkImpl := &checks.CheckAlias{
 				Notify:         a.State,
 				RPC:            a.delegate,
@@ -3927,9 +3922,8 @@ func (a *Agent) unloadMetadata() {
 
 // serviceMaintCheckID returns the ID of a given service's maintenance check
 func serviceMaintCheckID(serviceID structs.ServiceID) structs.CheckID {
-	var cid structs.CheckID
-	cid.Init(types.CheckID(structs.ServiceMaintPrefix+serviceID.ID), &serviceID.EnterpriseMeta)
-	return cid
+	cid := types.CheckID(structs.ServiceMaintPrefix + serviceID.ID)
+	return structs.NewCheckID(cid, &serviceID.EnterpriseMeta)
 }
 
 // EnableServiceMaintenance will register a false health check against the given

agent/agent_endpoint.go

@@ -767,8 +767,7 @@ func (s *HTTPServer) AgentHealthServiceByID(resp http.ResponseWriter, req *http.
 		return nil, err
 	}
 
-	var sid structs.ServiceID
-	sid.Init(serviceID, &entMeta)
+	sid := structs.NewServiceID(serviceID, &entMeta)
 
 	if service := s.agent.State.Service(sid); service != nil {
 		if authz != nil && authz.ServiceRead(service.Service, &authzContext) != acl.Allow {
@@ -830,8 +829,7 @@ func (s *HTTPServer) AgentHealthServiceByName(resp http.ResponseWriter, req *htt
 	result := make([]api.AgentServiceChecksInfo, 0, 16)
 	for _, service := range services {
 		if service.Service == serviceName {
-			var sid structs.ServiceID
-			sid.Init(service.ID, &entMeta)
+			sid := structs.NewServiceID(service.ID, &entMeta)
 
 			scode, sstatus, healthChecks := agentHealthService(sid, s)
 			serviceInfo := buildAgentService(service)

agent/local/state.go

@@ -1224,9 +1224,8 @@ func (l *State) syncService(key structs.ServiceID) error {
 		// Given how the register API works, this info is also updated
 		// every time we sync a service.
 		l.nodeInfoInSync = true
-		var checkKey structs.CheckID
 		for _, check := range checks {
-			checkKey.Init(check.CheckID, &check.EnterpriseMeta)
+			checkKey := structs.NewCheckID(check.CheckID, &check.EnterpriseMeta)
 			l.checks[checkKey].InSync = true
 		}
 		l.logger.Info("Synced service", "service", key.String())
@@ -1236,9 +1235,8 @@ func (l *State) syncService(key structs.ServiceID) error {
 		// todo(fs): mark the service and the checks to be in sync to prevent excessive retrying before next full sync
 		// todo(fs): some backoff strategy might be a better solution
 		l.services[key].InSync = true
-		var checkKey structs.CheckID
 		for _, check := range checks {
-			checkKey.Init(check.CheckID, &check.EnterpriseMeta)
+			checkKey := structs.NewCheckID(check.CheckID, &check.EnterpriseMeta)
 			l.checks[checkKey].InSync = true
 		}
 		accessorID := l.aclAccessorID(st)
@@ -1272,8 +1270,7 @@ func (l *State) syncCheck(key structs.CheckID) error {
 		SkipNodeUpdate:  l.nodeInfoInSync,
 	}
 
-	var serviceKey structs.ServiceID
-	serviceKey.Init(c.Check.ServiceID, &key.EnterpriseMeta)
+	serviceKey := structs.NewServiceID(c.Check.ServiceID, &key.EnterpriseMeta)
 
 	// Pull in the associated service if any
 	s := l.services[serviceKey]

agent/structs/structs.go

@@ -1619,11 +1619,6 @@ type CheckID struct {
 
 func NewCheckID(id types.CheckID, entMeta *EnterpriseMeta) CheckID {
 	var cid CheckID
-	cid.Init(id, entMeta)
-	return cid
-}
-
-func (cid *CheckID) Init(id types.CheckID, entMeta *EnterpriseMeta) {
 	cid.ID = id
 	if entMeta == nil {
 		entMeta = DefaultEnterpriseMeta()
@@ -1631,6 +1626,7 @@ func (cid *CheckID) Init(id types.CheckID, entMeta *EnterpriseMeta) {
 
 	cid.EnterpriseMeta = *entMeta
 	cid.EnterpriseMeta.Normalize()
+	return cid
 }
 
 // StringHash is used mainly to populate part of the filename of a check
@@ -1649,11 +1645,6 @@ type ServiceID struct {
 
 func NewServiceID(id string, entMeta *EnterpriseMeta) ServiceID {
 	var sid ServiceID
-	sid.Init(id, entMeta)
-	return sid
-}
-
-func (sid *ServiceID) Init(id string, entMeta *EnterpriseMeta) {
 	sid.ID = id
 	if entMeta == nil {
 		entMeta = DefaultEnterpriseMeta()
@@ -1661,6 +1652,7 @@ func (sid *ServiceID) Init(id string, entMeta *EnterpriseMeta) {
 
 	sid.EnterpriseMeta = *entMeta
 	sid.EnterpriseMeta.Normalize()
+	return sid
 }
 
 func (sid *ServiceID) Matches(other *ServiceID) bool {

agent/ui_endpoint.go

@@ -178,11 +178,9 @@ func summarizeServices(dump structs.CheckServiceNodes) []*ServiceSummary {
 		return serv
 	}
 
-	var sid structs.ServiceID
 	for _, csn := range dump {
 		svc := csn.Service
-		sid.Init(svc.Service, &svc.EnterpriseMeta)
-		sum := getService(sid)
+		sum := getService(structs.NewServiceID(svc.Service, &svc.EnterpriseMeta))
 		sum.Nodes = append(sum.Nodes, csn.Node.Node)
 		sum.Kind = svc.Kind
 		sum.InstanceCount += 1