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| 1 | +// Copyright 2024 PingCAP, Inc. |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +package resourcemanager |
| 16 | + |
| 17 | +import ( |
| 18 | + "context" |
| 19 | + "crypto/tls" |
| 20 | + "fmt" |
| 21 | + "time" |
| 22 | + |
| 23 | + "github.com/go-logr/logr" |
| 24 | + |
| 25 | + "github.com/pingcap/tidb-operator/api/v2/core/v1alpha1" |
| 26 | + "github.com/pingcap/tidb-operator/v2/pkg/apicall" |
| 27 | + coreutil "github.com/pingcap/tidb-operator/v2/pkg/apiutil/core/v1alpha1" |
| 28 | + "github.com/pingcap/tidb-operator/v2/pkg/client" |
| 29 | + "github.com/pingcap/tidb-operator/v2/pkg/resourcemanagerapi" |
| 30 | + "github.com/pingcap/tidb-operator/v2/pkg/runtime/scope" |
| 31 | + "github.com/pingcap/tidb-operator/v2/pkg/timanager" |
| 32 | +) |
| 33 | + |
| 34 | +const ( |
| 35 | + resourceManagerRequestTimeout = 10 * time.Second |
| 36 | +) |
| 37 | + |
| 38 | +type ResourceManagerClientManager = timanager.Manager[*v1alpha1.ResourceManagerGroup, ResourceManagerClient] |
| 39 | + |
| 40 | +type ResourceManagerClient interface { |
| 41 | + Underlay() resourcemanagerapi.Client |
| 42 | +} |
| 43 | + |
| 44 | +type resourceManagerClient struct { |
| 45 | + underlay resourcemanagerapi.Client |
| 46 | +} |
| 47 | + |
| 48 | +func (c *resourceManagerClient) Underlay() resourcemanagerapi.Client { |
| 49 | + return c.underlay |
| 50 | +} |
| 51 | + |
| 52 | +func NewClient( |
| 53 | + _ *v1alpha1.ResourceManagerGroup, |
| 54 | + underlay resourcemanagerapi.Client, |
| 55 | + _ timanager.SharedInformerFactory[resourcemanagerapi.Client], |
| 56 | +) (ResourceManagerClient, error) { |
| 57 | + return &resourceManagerClient{underlay: underlay}, nil |
| 58 | +} |
| 59 | + |
| 60 | +// CacheKeys returns the keys of the ResourceManagerGroup. |
| 61 | +// If any keys are changed, client will be renewed. |
| 62 | +// The first key is primary key to get client from manager. |
| 63 | +func CacheKeys(rmg *v1alpha1.ResourceManagerGroup) ([]string, error) { |
| 64 | + keys := []string{ |
| 65 | + // cluster name as primary key |
| 66 | + timanager.PrimaryKey(rmg.Namespace, rmg.Spec.Cluster.Name), |
| 67 | + rmg.Name, |
| 68 | + string(rmg.GetUID()), |
| 69 | + } |
| 70 | + |
| 71 | + return keys, nil |
| 72 | +} |
| 73 | + |
| 74 | +func NewUnderlayClientFunc(c client.Client) timanager.NewUnderlayClientFunc[*v1alpha1.ResourceManagerGroup, resourcemanagerapi.Client] { |
| 75 | + return func(rmg *v1alpha1.ResourceManagerGroup) (resourcemanagerapi.Client, error) { |
| 76 | + ctx, cancel := context.WithTimeout(context.Background(), resourceManagerRequestTimeout) |
| 77 | + defer cancel() |
| 78 | + |
| 79 | + var cluster v1alpha1.Cluster |
| 80 | + if err := c.Get(ctx, client.ObjectKey{ |
| 81 | + Name: rmg.Spec.Cluster.Name, |
| 82 | + Namespace: rmg.Namespace, |
| 83 | + }, &cluster); err != nil { |
| 84 | + return nil, fmt.Errorf("cannot find cluster %s: %w", rmg.Spec.Cluster.Name, err) |
| 85 | + } |
| 86 | + |
| 87 | + scheme := "http" |
| 88 | + var tlsConfig *tls.Config |
| 89 | + if coreutil.IsTLSClusterEnabled(&cluster) { |
| 90 | + cfg, err := apicall.GetClientTLSConfig(ctx, c, &cluster) |
| 91 | + if err != nil { |
| 92 | + return nil, fmt.Errorf("cannot get tls config from secret: %w", err) |
| 93 | + } |
| 94 | + tlsConfig = cfg |
| 95 | + scheme = "https" |
| 96 | + } |
| 97 | + |
| 98 | + svcName := coreutil.HeadlessServiceName[scope.ResourceManagerGroup](rmg) |
| 99 | + url := fmt.Sprintf("%s://%s.%s.svc:%d", scheme, svcName, rmg.Namespace, coreutil.ResourceManagerGroupClientPort(rmg)) |
| 100 | + return resourcemanagerapi.NewClient(url, resourceManagerRequestTimeout, tlsConfig), nil |
| 101 | + } |
| 102 | +} |
| 103 | + |
| 104 | +func NewResourceManagerClientManager(logger logr.Logger, c client.Client) ResourceManagerClientManager { |
| 105 | + m := timanager.NewManagerBuilder[*v1alpha1.ResourceManagerGroup, resourcemanagerapi.Client, ResourceManagerClient](). |
| 106 | + WithLogger(logger). |
| 107 | + WithNewUnderlayClientFunc(NewUnderlayClientFunc(c)). |
| 108 | + WithNewClientFunc(NewClient). |
| 109 | + WithCacheKeysFunc(CacheKeys). |
| 110 | + Build() |
| 111 | + |
| 112 | + return m |
| 113 | +} |
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