func describeBuilderImage(config *api.Config, image string, out io.Writer) {
c := &api.Config{
DockerConfig: config.DockerConfig,
PullAuthentication: config.PullAuthentication,
BuilderImage: config.BuilderImage,
BuilderPullPolicy: config.BuilderPullPolicy,
Tag: config.Tag,
IncrementalAuthentication: config.IncrementalAuthentication,
}
pr, err := docker.GetBuilderImage(c)
if err == nil {
build.GenerateConfigFromLabels(c, pr)
if len(c.DisplayName) > 0 {
fmt.Fprintf(out, "Builder Name:\t%s\n", c.DisplayName)
}
fmt.Fprintf(out, "Builder Image:\t%s\n", config.BuilderImage)
if len(c.BuilderImageVersion) > 0 {
fmt.Fprintf(out, "Builder Image Version:\t%s\n", c.BuilderImageVersion)
}
if len(c.BuilderBaseImageVersion) > 0 {
fmt.Fprintf(out, "Builder Base Version:\t%s\n", c.BuilderBaseImageVersion)
}
} else {
fmt.Fprintf(out, "Error describing image:\t%s\n", err.Error())
}
}
// Strategy creates the appropriate build strategy for the provided config, using
// the overrides provided. Not all strategies support all overrides.
func Strategy(config *api.Config, overrides build.Overrides) (build.Builder, api.BuildInfo, error) {
var builder build.Builder
var buildInfo api.BuildInfo
image, err := docker.GetBuilderImage(config)
if err != nil {
buildInfo.FailureReason = utilstatus.NewFailureReason(utilstatus.ReasonPullBuilderImageFailed, utilstatus.ReasonMessagePullBuilderImageFailed)
return nil, buildInfo, err
}
config.HasOnBuild = image.OnBuild
// if we're blocking onbuild, just do a normal s2i build flow
// which won't do a docker build and invoke the onbuild commands
if image.OnBuild && !config.BlockOnBuild {
builder, err = onbuild.New(config, overrides)
if err != nil {
buildInfo.FailureReason = utilstatus.NewFailureReason(utilstatus.ReasonGenericS2IBuildFailed, utilstatus.ReasonMessageGenericS2iBuildFailed)
return nil, buildInfo, err
}
return builder, buildInfo, nil
}
builder, err = sti.New(config, overrides)
if err != nil {
buildInfo.FailureReason = utilstatus.NewFailureReason(utilstatus.ReasonGenericS2IBuildFailed, utilstatus.ReasonMessageGenericS2iBuildFailed)
return nil, buildInfo, err
}
return builder, buildInfo, err
}
// Strategy creates the appropriate build strategy for the provided config, using
// the overrides provided. Not all strategies support all overrides.
func Strategy(config *api.Config, overrides build.Overrides) (build.Builder, error) {
image, err := docker.GetBuilderImage(config)
if err != nil {
return nil, err
}
if image.OnBuild {
return onbuild.New(config, overrides)
}
return sti.New(config, overrides)
}
// Strategy creates the appropriate build strategy for the provided config, using
// the overrides provided. Not all strategies support all overrides.
func Strategy(config *api.Config, overrides build.Overrides) (build.Builder, error) {
image, err := docker.GetBuilderImage(config)
if err != nil {
return nil, err
}
config.HasOnBuild = image.OnBuild
// if we're blocking onbuild, just do a normal s2i build flow
// which won't do a docker build and invoke the onbuild commands
if image.OnBuild && !config.BlockOnBuild {
return onbuild.New(config, overrides)
}
return sti.New(config, overrides)
}
// GenerateConfigFromLabels generates the S2I Config struct from the Docker
// image labels.
func GenerateConfigFromLabels(image string, config *api.Config) error {
result, err := docker.GetBuilderImage(config)
if err != nil {
return err
}
source := result.Image
if builderVersion, ok := source.Config.Labels["io.openshift.builder-version"]; ok {
config.BuilderImageVersion = builderVersion
config.BuilderBaseImageVersion = source.Config.Labels["io.openshift.builder-base-version"]
}
config.ScriptsURL = source.Config.Labels[api.DefaultNamespace+"scripts-url"]
if len(config.ScriptsURL) == 0 {
// FIXME: Backward compatibility
config.ScriptsURL = source.Config.Labels["io.s2i.scripts-url"]
}
config.Description = source.Config.Labels[api.KubernetesNamespace+"description"]
config.DisplayName = source.Config.Labels[api.KubernetesNamespace+"display-name"]
if builder, ok := source.Config.Labels[api.DefaultNamespace+"build.image"]; ok {
config.BuilderImage = builder
} else {
return fmt.Errorf("Required label %q not found in image", api.DefaultNamespace+"build.image")
}
if repo, ok := source.Config.Labels[api.DefaultNamespace+"build.source-location"]; ok {
config.Source = repo
} else {
return fmt.Errorf("Required label %q not found in image", api.DefaultNamespace+"source-location")
}
config.ContextDir = source.Config.Labels[api.DefaultNamespace+"build.source-context-dir"]
config.Ref = source.Config.Labels[api.DefaultNamespace+"build.commit.ref"]
return nil
}