go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/buildbucket/cmd/bbagent/swarming.go (about)

     1  // Copyright 2019 The LUCI Authors.
     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 main
    16  
    17  import (
    18  	"context"
    19  
    20  	"google.golang.org/protobuf/proto"
    21  
    22  	bbpb "go.chromium.org/luci/buildbucket/proto"
    23  	"go.chromium.org/luci/common/errors"
    24  	"go.chromium.org/luci/common/system/environ"
    25  	"go.chromium.org/luci/lucictx"
    26  	"go.chromium.org/luci/swarming/client/swarming"
    27  )
    28  
    29  // readBuildSecrets reads BuildSecrets message from swarming secret bytes.
    30  func readBuildSecrets(ctx context.Context) (*bbpb.BuildSecrets, error) {
    31  	swarming := lucictx.GetSwarming(ctx)
    32  	if swarming == nil {
    33  		return nil, errors.Reason("no swarming secret bytes; is this a Swarming Task with secret bytes?").Err()
    34  	}
    35  
    36  	secrets := &bbpb.BuildSecrets{}
    37  	if err := proto.Unmarshal(swarming.SecretBytes, secrets); err != nil {
    38  		return nil, errors.Annotate(err, "failed to read BuildSecrets message from swarming secret bytes").Err()
    39  	}
    40  	return secrets, nil
    41  }
    42  
    43  // populateSwarmingInfoFromEnv populates part of missing fields under
    44  // `build.infra.swarming` using values from `SWARMING_*` environment
    45  // variables.
    46  func populateSwarmingInfoFromEnv(build *bbpb.Build, env environ.Env) {
    47  	if build.Infra == nil {
    48  		build.Infra = &bbpb.BuildInfra{}
    49  	}
    50  	if build.Infra.Swarming == nil {
    51  		build.Infra.Swarming = &bbpb.BuildInfra_Swarming{}
    52  	}
    53  
    54  	swarm := build.Infra.Swarming
    55  	if v, ok := env.Lookup(swarming.ServerEnvVar); ok && swarm.Hostname == "" {
    56  		swarm.Hostname = v
    57  	}
    58  	if v, ok := env.Lookup(swarming.TaskIDEnvVar); ok && swarm.TaskId == "" {
    59  		swarm.TaskId = v
    60  	}
    61  }