sti.go

package builder

import (
	"github.com/fsouza/go-dockerclient"
	"github.com/golang/glog"
	stiapi "github.com/openshift/source-to-image/pkg/api"
	sti "github.com/openshift/source-to-image/pkg/build/strategies"

	"github.com/openshift/origin/pkg/build/api"
)

// STIBuilder performs an STI build given the build object
type STIBuilder struct {
	dockerClient DockerClient
	dockerSocket string
	authPresent  bool
	auth         docker.AuthConfiguration
	build        *api.Build
}

// NewSTIBuilder creates a new STIBuilder instance
func NewSTIBuilder(client DockerClient, dockerSocket string, authCfg docker.AuthConfiguration, authPresent bool, build *api.Build) *STIBuilder {
	return &STIBuilder{
		dockerClient: client,
		dockerSocket: dockerSocket,
		authPresent:  authPresent,
		auth:         authCfg,
		build:        build,
	}
}

// Build executes the STI build
func (s *STIBuilder) Build() error {
	tag := s.build.Parameters.Output.DockerImageReference
	request := &stiapi.Request{
		BaseImage:    s.build.Parameters.Strategy.STIStrategy.Image,
		DockerSocket: s.dockerSocket,
		Source:       s.build.Parameters.Source.Git.URI,
		ContextDir:   s.build.Parameters.Source.ContextDir,
		Tag:          tag,
		ScriptsURL:   s.build.Parameters.Strategy.STIStrategy.Scripts,
		Environment:  getBuildEnvVars(s.build),
		Clean:        s.build.Parameters.Strategy.STIStrategy.Clean,
	}
	if s.build.Parameters.Revision != nil && s.build.Parameters.Revision.Git != nil &&
		s.build.Parameters.Revision.Git.Commit != "" {
		request.Ref = s.build.Parameters.Revision.Git.Commit
	} else if s.build.Parameters.Source.Git.Ref != "" {
		request.Ref = s.build.Parameters.Source.Git.Ref
	}
	glog.V(2).Infof("Creating a new STI builder with build request: %#v\n", request)
	builder, err := sti.GetStrategy(request)
	if err != nil {
		return err
	}
	defer removeImage(s.dockerClient, tag)
	if _, err = builder.Build(request); err != nil {
		return err
	}
	if len(s.build.Parameters.Output.DockerImageReference) != 0 {
		return pushImage(s.dockerClient, tag, s.auth)
	}
	return nil
}