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[Custom DC] Add a csv file trigger for controller runner PubSub (#181)
* [Custom DC] Add a csv file trigger for controller runner PubSub * change controller trigger file from *.csv to process/<import_name>/trigger.txt * fix bugs * Fix import path * Fix type, improve comment --------- Co-authored-by: Alex Chen <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| // Copyright 2023 Google LLC | ||
| // | ||
| // 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 | ||
| // | ||
| // https://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 gcf | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "log" | ||
| "path/filepath" | ||
| "strings" | ||
|
|
||
| "cloud.google.com/go/pubsub" | ||
| "github.com/pkg/errors" | ||
| ) | ||
|
|
||
| const ( | ||
| dcManifestPath = "/memfile/core_resolved_mcfs_memfile/core_resolved_mcfs.binarypb" | ||
| controllerTriggerFile = "trigger.txt" | ||
| ) | ||
|
|
||
| type PublishConfig struct { | ||
| // TopicName is the full PubSub topic name in the following format | ||
| // projects/<project id>/topics/<topic id> | ||
| TopicName string | ||
| } | ||
|
|
||
| func (p PublishConfig) ProjectID() string { | ||
| return strings.Split(p.TopicName, "/")[1] | ||
| } | ||
|
|
||
| func (p PublishConfig) TopicID() string { | ||
| return strings.Split(p.TopicName, "/")[3] | ||
| } | ||
|
|
||
| type CustomDCPubSubMsg struct { | ||
| importName string | ||
| dcManifestPath string | ||
| customManifestPath string | ||
| bigstoreDataDirectory string | ||
| bigstoreCacheDirectory string | ||
| bigstoreControlDirectory string | ||
| } | ||
|
|
||
| func (s CustomDCPubSubMsg) String() string { | ||
| return fmt.Sprintf(`import_name=%s,\ | ||
| dc_manifest_path=%s,\ | ||
| custom_manifest_path=%s,\ | ||
| bigstore_data_directory=%s,\ | ||
| bigstore_cache_directory=%s,\ | ||
| bigstore_control_directory=%s,\ | ||
| `, | ||
| s.importName, | ||
| s.dcManifestPath, | ||
| s.customManifestPath, | ||
| s.bigstoreDataDirectory, | ||
| s.bigstoreCacheDirectory, | ||
| s.bigstoreControlDirectory, | ||
| ) | ||
| } | ||
|
|
||
| // Publish publishes the current import config to a topic. | ||
| func (s CustomDCPubSubMsg) Publish(ctx context.Context, p PublishConfig) error { | ||
| client, err := pubsub.NewClient(ctx, p.ProjectID()) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer client.Close() | ||
|
|
||
| t := client.Topic(p.TopicID()) | ||
| res := t.Publish(ctx, &pubsub.Message{ | ||
| Data: []byte(s.String()), | ||
| }) | ||
|
|
||
| id, err := res.Get(ctx) | ||
| if err != nil { | ||
| return errors.Wrap(err, "Failed to verify import notification msg was published") | ||
| } | ||
| log.Printf("PubSub import notification published with server generated msg id: %v\n", id) | ||
| return nil | ||
| } | ||
|
|
||
| // triggerPath is .../<import_name>/process/<import id>/trigger.txt | ||
| // process folder is currently only used for control purposes for 1 process: trigger controller. | ||
| func TriggerController(ctx context.Context, p PublishConfig, triggerPath string) error { | ||
| importName := filepath.Dir(filepath.Dir(filepath.Dir(triggerPath))) | ||
| path := ImportGCSPath{importName: importName} | ||
|
|
||
| msg := CustomDCPubSubMsg{ | ||
| importName: path.ImportName(), | ||
| dcManifestPath: dcManifestPath, | ||
| customManifestPath: path.ConfigPath(), | ||
| bigstoreDataDirectory: path.DataDirectory(), | ||
| bigstoreCacheDirectory: path.CacheDirectory(), | ||
| bigstoreControlDirectory: path.ControlDirectory(), | ||
| } | ||
| return msg.Publish(ctx, p) | ||
| } |
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