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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| // Copyright 2019-2024 The Liqo Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package concurrent | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/manager" | ||
| ) | ||
|
|
||
| var _ manager.Runnable = &ConcurrentRunnable{} | ||
|
|
||
| // ConcurrentRunnable is a Runnable that manages concurrency. | ||
| type ConcurrentRunnable struct { | ||
| Client client.Client | ||
|
|
||
| PodName string | ||
| DeploymentName string | ||
| Namespace string | ||
| } | ||
|
|
||
| func NewConcurrentRunnable(client client.Client, podName, deploymentName, namespace string) *ConcurrentRunnable { | ||
| return &ConcurrentRunnable{ | ||
| Client: client, | ||
| PodName: podName, | ||
| DeploymentName: deploymentName, | ||
| Namespace: namespace, | ||
| } | ||
| } | ||
|
|
||
| // Start starts the ConcurrentRunnable. | ||
| func (cr *ConcurrentRunnable) Start(ctx context.Context) error { | ||
| pods, err := ListAllGatewaysReplicas(ctx, cr.Client, cr.Namespace, cr.DeploymentName) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| for i := range pods { | ||
| if pods[i].GetName() == cr.PodName { | ||
| if err := AddActiveGatewayLabel(ctx, cr.Client, client.ObjectKeyFromObject(&pods[i])); err != nil { | ||
| return err | ||
| } | ||
| } else { | ||
| if err := RemoveActiveGatewayLabel(ctx, cr.Client, client.ObjectKeyFromObject(&pods[i])); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| // Copyright 2019-2024 The Liqo Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| // Package concurrent contains the logic to manage same gateway replicas. | ||
| // They are managed using an active/passive approach. | ||
| // The gateway container try to acquire the active role using the controller manager lease. | ||
| // Then, the active gateway is labeled with the ActiveGatewayKey and ActiveGatewayValue, and the passive gateways are unlabeled. | ||
| // The gateway service target the active gateway using the ActiveGatewayKey and ActiveGatewayValue labels. | ||
| package concurrent |
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