github.com/GoogleContainerTools/skaffold@v1.39.18/pkg/skaffold/build/gcb/kaniko.go (about)

     1  /*
     2  Copyright 2019 The Skaffold Authors
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package gcb
    18  
    19  import (
    20  	"fmt"
    21  
    22  	"google.golang.org/api/cloudbuild/v1"
    23  	v1 "k8s.io/api/core/v1"
    24  
    25  	"github.com/GoogleContainerTools/skaffold/pkg/skaffold/build/kaniko"
    26  	"github.com/GoogleContainerTools/skaffold/pkg/skaffold/build/misc"
    27  	"github.com/GoogleContainerTools/skaffold/pkg/skaffold/docker"
    28  	"github.com/GoogleContainerTools/skaffold/pkg/skaffold/schema/latest"
    29  )
    30  
    31  func (b *Builder) kanikoBuildSpec(a *latest.Artifact, tag string) (cloudbuild.Build, error) {
    32  	k := a.KanikoArtifact
    33  	requiredImages := docker.ResolveDependencyImages(a.Dependencies, b.artifactStore, true)
    34  	// add required artifacts as build args
    35  	buildArgs, err := docker.EvalBuildArgs(b.cfg.Mode(), a.Workspace, k.DockerfilePath, k.BuildArgs, requiredImages)
    36  	if err != nil {
    37  		return cloudbuild.Build{}, fmt.Errorf("unable to evaluate build args: %w", err)
    38  	}
    39  	k.BuildArgs = buildArgs
    40  	kanikoArgs, err := kaniko.Args(k, tag, "")
    41  	if err != nil {
    42  		return cloudbuild.Build{}, err
    43  	}
    44  
    45  	env, err := misc.EvaluateEnv(envFromVars(k.Env))
    46  	if err != nil {
    47  		return cloudbuild.Build{}, fmt.Errorf("unable to evaluate env variables: %w", err)
    48  	}
    49  
    50  	return cloudbuild.Build{
    51  		Steps: []*cloudbuild.BuildStep{{
    52  			Name: b.KanikoImage,
    53  			Args: kanikoArgs,
    54  			Env:  env,
    55  		}},
    56  	}, nil
    57  }
    58  
    59  func envFromVars(env []v1.EnvVar) []string {
    60  	s := make([]string, 0, len(env))
    61  	for _, envVar := range env {
    62  		s = append(s, envVar.Name+"="+envVar.Value)
    63  	}
    64  	return s
    65  }