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execute.go
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execute.go
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// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You 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 dataflowlib translates a Beam pipeline model to the
// Dataflow API job model, for submission to Google Cloud Dataflow.
package dataflowlib
import (
"context"
"encoding/json"
"os"
"github.com/apache/beam/sdks/go/pkg/beam/core/util/protox"
"github.com/apache/beam/sdks/go/pkg/beam/log"
pipepb "github.com/apache/beam/sdks/go/pkg/beam/model/pipeline_v1"
"github.com/apache/beam/sdks/go/pkg/beam/runners/universal/runnerlib"
"github.com/golang/protobuf/proto"
df "google.golang.org/api/dataflow/v1b3"
)
// Execute submits a pipeline as a Dataflow job.
func Execute(ctx context.Context, raw *pipepb.Pipeline, opts *JobOptions, workerURL, jarURL, modelURL, endpoint string, async bool) (string, error) {
// (1) Upload Go binary to GCS.
bin := opts.Worker
if bin == "" {
if self, ok := runnerlib.IsWorkerCompatibleBinary(); ok {
bin = self
log.Infof(ctx, "Using running binary as worker binary: '%v'", bin)
} else {
// Cross-compile as last resort.
worker, err := runnerlib.BuildTempWorkerBinary(ctx)
if err != nil {
return "", err
}
defer os.Remove(worker)
bin = worker
}
} else {
log.Infof(ctx, "Using specified worker binary: '%v'", bin)
}
log.Infof(ctx, "Staging worker binary: %v", bin)
if err := StageFile(ctx, opts.Project, workerURL, bin); err != nil {
return "", err
}
log.Infof(ctx, "Staged worker binary: %v", workerURL)
if opts.WorkerJar != "" {
log.Infof(ctx, "Staging Dataflow worker jar: %v", opts.WorkerJar)
if err := StageFile(ctx, opts.Project, jarURL, opts.WorkerJar); err != nil {
return "", err
}
log.Infof(ctx, "Staged worker jar: %v", jarURL)
}
// (2) Fixup and upload model to GCS
p, err := Fixup(raw)
if err != nil {
return "", err
}
log.Info(ctx, proto.MarshalTextString(p))
if err := StageModel(ctx, opts.Project, modelURL, protox.MustEncode(p)); err != nil {
return "", err
}
log.Infof(ctx, "Staged model pipeline: %v", modelURL)
// (3) Translate to v1b3 and submit
job, err := Translate(p, opts, workerURL, jarURL, modelURL)
if err != nil {
return "", err
}
PrintJob(ctx, job)
client, err := NewClient(ctx, endpoint)
if err != nil {
return "", err
}
upd, err := Submit(ctx, client, opts.Project, opts.Region, job)
if err != nil {
return "", err
}
log.Infof(ctx, "Submitted job: %v", upd.Id)
if endpoint == "" {
log.Infof(ctx, "Console: https://console.cloud.google.com/dataflow/job/%v?project=%v", upd.Id, opts.Project)
}
log.Infof(ctx, "Logs: https://console.cloud.google.com/logs/viewer?project=%v&resource=dataflow_step%%2Fjob_id%%2F%v", opts.Project, upd.Id)
if async {
return upd.Id, nil
}
// (4) Wait for completion.
return upd.Id, WaitForCompletion(ctx, client, opts.Project, opts.Region, upd.Id)
}
// PrintJob logs the Dataflow job.
func PrintJob(ctx context.Context, job *df.Job) {
str, err := json.MarshalIndent(job, "", " ")
if err != nil {
log.Infof(ctx, "Failed to print job %v: %v", job.Id, err)
}
log.Info(ctx, string(str))
}