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Refactoring to have clearer code without weird bool

This commit is contained in:
Pierre Souchay 2018-03-19 16:12:54 +01:00
parent a44b9e84b1
commit 5e974843f1
1 changed files with 46 additions and 37 deletions
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83
agent/consul/state/catalog.go
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@ -1086,39 +1086,17 @@ func (s *Store) EnsureCheck(idx uint64, hc *structs.HealthCheck) error {
return nil
}
// This ensure all connected services to a check are updated properly
func (s *Store) alterServicesFromCheck(tx *memdb.Txn, idx uint64, hc *structs.HealthCheck, checkServiceExists bool) error {
// If the check is associated with a service, check that we have
// a registration for the service.
if hc.ServiceID != "" {
service, err := tx.First("services", "id", hc.Node, hc.ServiceID)
// When deleting a service, service might have been removed already
if err != nil && checkServiceExists {
return fmt.Errorf("failed service lookup: %s", err)
}
if service == nil {
return ErrMissingService
}
// Copy in the service name and tags
svc := service.(*structs.ServiceNode)
hc.ServiceName = svc.ServiceName
hc.ServiceTags = svc.ServiceTags
if err = tx.Insert("index", &IndexEntry{serviceIndexName(svc.ServiceName), idx}); err != nil {
// updateIndexForAllServicesOfNode updates the status for all the services associated with this node
func (s *Store) updateAllServiceIndexesOfNode(tx *memdb.Txn, idx uint64, nodeID string) error {
services, err := tx.Get("services", "node", nodeID)
if err != nil {
return fmt.Errorf("failed updating services for node %s: %s", nodeID, err)
}
for service := services.Next(); service != nil; service = services.Next() {
svc := service.(*structs.ServiceNode).ToNodeService()
if err := tx.Insert("index", &IndexEntry{serviceIndexName(svc.Service), idx}); err != nil {
return fmt.Errorf("failed updating index: %s", err)
}
} else {
// Update the status for all the services associated with this node
services, err := tx.Get("services", "node", hc.Node)
if err != nil {
return fmt.Errorf("failed updating services for node %s: %s", hc.Node, err)
}
for service := services.Next(); service != nil; service = services.Next() {
svc := service.(*structs.ServiceNode).ToNodeService()
if err := tx.Insert("index", &IndexEntry{serviceIndexName(svc.Service), idx}); err != nil {
return fmt.Errorf("failed updating index: %s", err)
}
}
}
return nil
}
@ -1156,9 +1134,30 @@ func (s *Store) ensureCheckTxn(tx *memdb.Txn, idx uint64, hc *structs.HealthChec
return ErrMissingNode
}
err = s.alterServicesFromCheck(tx, idx, hc, true)
if err != nil {
return err
// If the check is associated with a service, check that we have
// a registration for the service.
if hc.ServiceID != "" {
service, err := tx.First("services", "id", hc.Node, hc.ServiceID)
if err != nil {
return fmt.Errorf("failed service lookup: %s", err)
}
if service == nil {
return ErrMissingService
}
// Copy in the service name and tags
svc := service.(*structs.ServiceNode)
hc.ServiceName = svc.ServiceName
hc.ServiceTags = svc.ServiceTags
if err = tx.Insert("index", &IndexEntry{serviceIndexName(svc.ServiceName), idx}); err != nil {
return fmt.Errorf("failed updating index: %s", err)
}
} else {
// Update the status for all the services associated with this node
err = s.updateAllServiceIndexesOfNode(tx, idx, hc.Node)
if err != nil {
return err
}
}
// Delete any sessions for this check if the health is critical.
@ -1401,9 +1400,19 @@ func (s *Store) deleteCheckTxn(tx *memdb.Txn, idx uint64, node string, checkID t
}
existing := hc.(*structs.HealthCheck)
if existing != nil {
err = s.alterServicesFromCheck(tx, idx, existing, false)
if err != nil {
return fmt.Errorf("Failed to update services linked to deleted healthcheck: %s", err)
// When no service is linked to this service, update all services of node
if existing.ServiceID != "" {
if err = tx.Insert("index", &IndexEntry{serviceIndexName(existing.ServiceName), idx}); err != nil {
return fmt.Errorf("failed updating index: %s", err)
}
} else {
err = s.updateAllServiceIndexesOfNode(tx, idx, existing.Node)
if err != nil {
return fmt.Errorf("Failed to update services linked to deleted healthcheck: %s", err)
}
if err := tx.Insert("index", &IndexEntry{"services", idx}); err != nil {
return fmt.Errorf("failed updating index: %s", err)
}
}
}