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Use Load_Balancer_Groups when supported.
This improves scalability of the NB side significantly. Signed-off-by: Dumitru Ceara <dceara@redhat.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| package libovsdbops | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| libovsdbclient "github.com/ovn-org/libovsdb/client" | ||
| "github.com/ovn-org/libovsdb/model" | ||
| libovsdb "github.com/ovn-org/libovsdb/ovsdb" | ||
|
|
||
| "github.com/ovn-org/ovn-kubernetes/go-controller/pkg/nbdb" | ||
| "github.com/ovn-org/ovn-kubernetes/go-controller/pkg/types" | ||
| ) | ||
|
|
||
| // findLBGroup looks up the Group in the cache and sets the UUID | ||
| func findLBGroup(nbClient libovsdbclient.Client, group *nbdb.LoadBalancerGroup) error { | ||
| if group.UUID != "" && !IsNamedUUID(group.UUID) { | ||
| return nil | ||
| } | ||
|
|
||
| ctx, cancel := context.WithTimeout(context.Background(), types.OVSDBTimeout) | ||
| defer cancel() | ||
| groups := []nbdb.LoadBalancerGroup{} | ||
| err := nbClient.WhereCache(func(item *nbdb.LoadBalancerGroup) bool { | ||
| return item.Name == group.Name | ||
| }).List(ctx, &groups) | ||
| if err != nil { | ||
| return fmt.Errorf("can't find LB group %+v: %v", *group, err) | ||
| } | ||
|
|
||
| if len(groups) > 1 { | ||
| return fmt.Errorf("unexpectedly found multiple LB Groups: %+v", groups) | ||
| } | ||
|
|
||
| if len(groups) == 0 { | ||
| return libovsdbclient.ErrNotFound | ||
| } | ||
|
|
||
| group.UUID = groups[0].UUID | ||
| return nil | ||
| } | ||
|
|
||
| func AddLoadBalancersToGroupOps(nbClient libovsdbclient.Client, ops []libovsdb.Operation, group *nbdb.LoadBalancerGroup, lbs ...*nbdb.LoadBalancer) ([]libovsdb.Operation, error) { | ||
| if ops == nil { | ||
| ops = []libovsdb.Operation{} | ||
| } | ||
| if len(lbs) == 0 { | ||
| return ops, nil | ||
| } | ||
|
|
||
| err := findLBGroup(nbClient, group) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| lbUUIDs := make([]string, 0, len(lbs)) | ||
| for _, lb := range lbs { | ||
| lbUUIDs = append(lbUUIDs, lb.UUID) | ||
| } | ||
|
|
||
| op, err := nbClient.Where(group).Mutate(group, model.Mutation{ | ||
| Field: &group.LoadBalancer, | ||
| Mutator: libovsdb.MutateOperationInsert, | ||
| Value: lbUUIDs, | ||
| }) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| ops = append(ops, op...) | ||
| return ops, nil | ||
| } | ||
|
|
||
| func RemoveLoadBalancersFromGroupOps(nbClient libovsdbclient.Client, ops []libovsdb.Operation, group *nbdb.LoadBalancerGroup, lbs ...*nbdb.LoadBalancer) ([]libovsdb.Operation, error) { | ||
| if ops == nil { | ||
| ops = []libovsdb.Operation{} | ||
| } | ||
| if len(lbs) == 0 { | ||
| return ops, nil | ||
| } | ||
|
|
||
| err := findLBGroup(nbClient, group) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| lbUUIDs := make([]string, 0, len(lbs)) | ||
| for _, lb := range lbs { | ||
| lbUUIDs = append(lbUUIDs, lb.UUID) | ||
| } | ||
|
|
||
| op, err := nbClient.Where(group).Mutate(group, model.Mutation{ | ||
| Field: &group.LoadBalancer, | ||
| Mutator: libovsdb.MutateOperationDelete, | ||
| Value: lbUUIDs, | ||
| }) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| ops = append(ops, op...) | ||
|
|
||
| return ops, nil | ||
| } | ||
|
|
||
| func ListGroupsWithLoadBalancers(nbClient libovsdbclient.Client) ([]nbdb.LoadBalancerGroup, error) { | ||
| groups := &[]nbdb.LoadBalancerGroup{} | ||
| ctx, cancel := context.WithTimeout(context.Background(), types.OVSDBTimeout) | ||
| defer cancel() | ||
| err := nbClient.WhereCache(func(item *nbdb.LoadBalancerGroup) bool { | ||
| return item.LoadBalancer != nil | ||
| }).List(ctx, groups) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return *groups, nil | ||
| } |
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