Allow to specify runPolicy for BuildConfig

api/swagger-spec/oapi-v1.json

@@ -17512,6 +17512,10 @@
       },
       "description": "triggers determine how new Builds can be launched from a BuildConfig. If no triggers are defined, a new build can only occur as a result of an explicit client build creation."
      },
+     "runPolicy": {
+      "type": "string",
+      "description": "RunPolicy describes how the new build created from this build configuration will be scheduled for execution. This is optional, if not specified we default to \"Serial\"."
+     },
      "serviceAccount": {
       "type": "string",
       "description": "serviceAccount is the name of the ServiceAccount to use to run the pod created by this build. The pod will be allowed to use secrets referenced by the ServiceAccount"

pkg/api/deep_copy_generated.go

@@ -770,6 +770,7 @@ func deepCopy_api_BuildConfigSpec(in buildapi.BuildConfigSpec, out *buildapi.Bui
 	} else {
 		out.Triggers = nil
 	}
+	out.RunPolicy = in.RunPolicy
 	if err := deepCopy_api_BuildSpec(in.BuildSpec, &out.BuildSpec, c); err != nil {
 		return err
 	}

pkg/api/serialization_test.go

@@ -197,6 +197,10 @@ func fuzzInternalObject(t *testing.T, forVersion unversioned.GroupVersion, item
 				j.From.Kind = specs[c.Intn(len(specs))]
 			}
 		},
+		func(j *build.BuildConfigSpec, c fuzz.Continue) {
+			c.FuzzNoCustom(j)
+			j.RunPolicy = build.BuildRunPolicySerial
+		},
 		func(j *build.SourceBuildStrategy, c fuzz.Continue) {
 			c.FuzzNoCustom(j)
 			j.From.Kind = "ImageStreamTag"

pkg/api/v1/conversion_generated.go

@@ -1041,6 +1041,7 @@ func autoConvert_api_BuildConfigSpec_To_v1_BuildConfigSpec(in *buildapi.BuildCon
 	} else {
 		out.Triggers = nil
 	}
+	out.RunPolicy = v1.BuildRunPolicy(in.RunPolicy)
 	if err := Convert_api_BuildSpec_To_v1_BuildSpec(&in.BuildSpec, &out.BuildSpec, s); err != nil {
 		return err
 	}
@@ -1906,6 +1907,7 @@ func autoConvert_v1_BuildConfigSpec_To_api_BuildConfigSpec(in *v1.BuildConfigSpe
 	} else {
 		out.Triggers = nil
 	}
+	out.RunPolicy = buildapi.BuildRunPolicy(in.RunPolicy)
 	if err := Convert_v1_BuildSpec_To_api_BuildSpec(&in.BuildSpec, &out.BuildSpec, s); err != nil {
 		return err
 	}

pkg/api/v1/deep_copy_generated.go

@@ -790,6 +790,7 @@ func deepCopy_v1_BuildConfigSpec(in apiv1.BuildConfigSpec, out *apiv1.BuildConfi
 	} else {
 		out.Triggers = nil
 	}
+	out.RunPolicy = in.RunPolicy
 	if err := deepCopy_v1_BuildSpec(in.BuildSpec, &out.BuildSpec, c); err != nil {
 		return err
 	}

pkg/api/v1beta3/conversion_generated.go

@@ -1049,6 +1049,7 @@ func autoConvert_api_BuildConfigSpec_To_v1beta3_BuildConfigSpec(in *buildapi.Bui
 	} else {
 		out.Triggers = nil
 	}
+	out.RunPolicy = v1beta3.BuildRunPolicy(in.RunPolicy)
 	if err := Convert_api_BuildSpec_To_v1beta3_BuildSpec(&in.BuildSpec, &out.BuildSpec, s); err != nil {
 		return err
 	}
@@ -1812,6 +1813,7 @@ func autoConvert_v1beta3_BuildConfigSpec_To_api_BuildConfigSpec(in *v1beta3.Buil
 	} else {
 		out.Triggers = nil
 	}
+	out.RunPolicy = buildapi.BuildRunPolicy(in.RunPolicy)
 	if err := Convert_v1beta3_BuildSpec_To_api_BuildSpec(&in.BuildSpec, &out.BuildSpec, s); err != nil {
 		return err
 	}

pkg/api/v1beta3/deep_copy_generated.go

@@ -798,6 +798,7 @@ func deepCopy_v1beta3_BuildConfigSpec(in apiv1beta3.BuildConfigSpec, out *apiv1b
 	} else {
 		out.Triggers = nil
 	}
+	out.RunPolicy = in.RunPolicy
 	if err := deepCopy_v1beta3_BuildSpec(in.BuildSpec, &out.BuildSpec, c); err != nil {
 		return err
 	}

pkg/build/api/types.go

@@ -19,6 +19,8 @@ const (
 	BuildPodNameAnnotation = "openshift.io/build.pod-name"
 	// BuildLabel is the key of a Pod label whose value is the Name of a Build which is run.
 	BuildLabel = "openshift.io/build.name"
+	// BuildRunPolicyLabel represents the start policy used to to start the build.
+	BuildRunPolicyLabel = "openshift.io/build.start-policy"
 	// DefaultDockerLabelNamespace is the key of a Build label, whose values are build metadata.
 	DefaultDockerLabelNamespace = "io.openshift."
 	// OriginVersion is an environment variable key that indicates the version of origin that
@@ -30,6 +32,15 @@ const (
 	// DropCapabilities is an environment variable that contains a list of capabilities to drop when
 	// executing a Source build
 	DropCapabilities = "DROP_CAPS"
+	// BuildConfigLabel is the key of a Build label whose value is the ID of a BuildConfig
+	// on which the Build is based.
+	BuildConfigLabel = "openshift.io/build-config.name"
+	// BuildConfigLabelDeprecated was used as BuildConfigLabel before adding namespaces.
+	// We keep it for backward compatibility.
+	BuildConfigLabelDeprecated = "buildconfig"
+	// BuildConfigPausedAnnotation is an annotation that marks a BuildConfig as paused.
+	// New Builds cannot be instantiated from a paused BuildConfig.
+	BuildConfigPausedAnnotation = "openshift.io/build-config.paused"
 )
 
 // Build encapsulates the inputs needed to produce a new deployable image, as well as
@@ -545,18 +556,6 @@ type BuildOutput struct {
 	PushSecret *kapi.LocalObjectReference
 }
 
-const (
-	// BuildConfigLabel is the key of a Build label whose value is the ID of a BuildConfig
-	// on which the Build is based.
-	BuildConfigLabel = "openshift.io/build-config.name"
-	// BuildConfigLabelDeprecated was used as BuildConfigLabel before adding namespaces.
-	// We keep it for backward compatibility.
-	BuildConfigLabelDeprecated = "buildconfig"
-	// BuildConfigPausedAnnotation is an annotation that marks a BuildConfig as paused.
-	// New Builds cannot be instantiated from a paused BuildConfig.
-	BuildConfigPausedAnnotation = "openshift.io/build-config.paused"
-)
-
 // BuildConfig is a template which can be used to create new builds.
 type BuildConfig struct {
 	unversioned.TypeMeta
@@ -575,10 +574,34 @@ type BuildConfigSpec struct {
 	// are defined, a new build can only occur as a result of an explicit client build creation.
 	Triggers []BuildTriggerPolicy
 
+	// RunPolicy describes how the new build created from this build
+	// configuration will be scheduled for execution.
+	// This is optional, if not specified we default to "Serial".
+	RunPolicy BuildRunPolicy
+
 	// BuildSpec is the desired build specification
 	BuildSpec
 }
 
+// BuildRunPolicy defines the behaviour of how the new builds are executed
+// from the existing build configuration.
+type BuildRunPolicy string
+
+const (
+	// BuildRunPolicyParallel schedules new builds immediately after they are
+	// created. Builds will be executed in parallel.
+	BuildRunPolicyParallel BuildRunPolicy = "Parallel"
+
+	// BuildRunPolicySerial schedules new builds to execute in a sequence as
+	// they are created. Every build gets queued up and will execute when the
+	// previous build completes. This is the default policy.
+	BuildRunPolicySerial BuildRunPolicy = "Serial"
+
+	// BuildRunPolicySerialLatestOnly schedules only the latest build to execute,
+	// cancelling all the previously queued build.
+	BuildRunPolicySerialLatestOnly BuildRunPolicy = "SerialLatestOnly"
+)
+
 // BuildConfigStatus contains current state of the build config object.
 type BuildConfigStatus struct {
 	// LastVersion is used to inform about number of last triggered build.

pkg/build/api/v1/conversion.go

@@ -218,6 +218,11 @@ func Convert_v1_BuildStrategy_To_api_BuildStrategy(in *BuildStrategy, out *newer
 
 func addConversionFuncs(scheme *runtime.Scheme) {
 	err := scheme.AddDefaultingFuncs(
+		func(config *BuildConfigSpec) {
+			if len(config.RunPolicy) == 0 {
+				config.RunPolicy = BuildRunPolicySerial
+			}
+		},
 		func(source *BuildSource) {
 			if (source != nil) && (source.Type == BuildSourceBinary) && (source.Binary == nil) {
 				source.Binary = &BinaryBuildSource{}

pkg/build/api/v1/swagger_doc.go

@@ -63,8 +63,9 @@ func (BuildConfigList) SwaggerDoc() map[string]string {
 }
 
 var map_BuildConfigSpec = map[string]string{
-	"":         "BuildConfigSpec describes when and how builds are created",
-	"triggers": "triggers determine how new Builds can be launched from a BuildConfig. If no triggers are defined, a new build can only occur as a result of an explicit client build creation.",
+	"":          "BuildConfigSpec describes when and how builds are created",
+	"triggers":  "triggers determine how new Builds can be launched from a BuildConfig. If no triggers are defined, a new build can only occur as a result of an explicit client build creation.",
+	"runPolicy": "RunPolicy describes how the new build created from this build configuration will be scheduled for execution. This is optional, if not specified we default to \"Serial\".",
 }
 
 func (BuildConfigSpec) SwaggerDoc() map[string]string {

pkg/build/api/v1/types.go

@@ -546,10 +546,34 @@ type BuildConfigSpec struct {
 	// are defined, a new build can only occur as a result of an explicit client build creation.
 	Triggers []BuildTriggerPolicy `json:"triggers"`
 
+	// RunPolicy describes how the new build created from this build
+	// configuration will be scheduled for execution.
+	// This is optional, if not specified we default to "Serial".
+	RunPolicy BuildRunPolicy `json:"runPolicy,omitempty"`
+
 	// BuildSpec is the desired build specification
 	BuildSpec `json:",inline"`
 }
 
+// BuildRunPolicy defines the behaviour of how the new builds are executed
+// from the existing build configuration.
+type BuildRunPolicy string
+
+const (
+	// BuildRunPolicyParallel schedules new builds immediately after they are
+	// created. Builds will be executed in parallel.
+	BuildRunPolicyParallel BuildRunPolicy = "Parallel"
+
+	// BuildRunPolicySerial schedules new builds to execute in a sequence as
+	// they are created. Every build gets queued up and will execute when the
+	// previous build completes. This is the default policy.
+	BuildRunPolicySerial BuildRunPolicy = "Serial"
+
+	// BuildRunPolicySerialLatestOnly schedules only the latest build to execute,
+	// cancelling all the previously queued build.
+	BuildRunPolicySerialLatestOnly BuildRunPolicy = "SerialLatestOnly"
+)
+
 // BuildConfigStatus contains current state of the build config object.
 type BuildConfigStatus struct {
 	// lastVersion is used to inform about number of last triggered build.

pkg/build/api/v1beta3/conversion.go

@@ -220,6 +220,11 @@ func Convert_api_BuildStrategy_To_v1beta3_BuildStrategy(in *newer.BuildStrategy,
 
 func addConversionFuncs(scheme *runtime.Scheme) {
 	err := scheme.AddDefaultingFuncs(
+		func(config *BuildConfigSpec) {
+			if len(config.RunPolicy) == 0 {
+				config.RunPolicy = BuildRunPolicySerial
+			}
+		},
 		func(strategy *BuildStrategy) {
 			if (strategy != nil) && (strategy.Type == DockerBuildStrategyType) {
 				//  initialize DockerStrategy to a default state if it's not set.

pkg/build/api/v1beta3/types.go

@@ -510,9 +510,33 @@ type BuildConfigSpec struct {
 	// are defined, a new build can only occur as a result of an explicit client build creation.
 	Triggers []BuildTriggerPolicy `json:"triggers"`
 
+	// RunPolicy describes how the new build created from this build
+	// configuration will be scheduled for execution.
+	// This is optional, if not specified we default to "Serial".
+	RunPolicy BuildRunPolicy `json:"runPolicy,omitempty"`
+
 	BuildSpec `json:",inline"`
 }
 
+// BuildRunPolicy defines the behaviour of how the new builds are executed
+// from the existing build configuration.
+type BuildRunPolicy string
+
+const (
+	// BuildRunPolicyParallel schedules new builds immediately after they are
+	// created. Builds will be executed in parallel.
+	BuildRunPolicyParallel BuildRunPolicy = "Parallel"
+
+	// BuildRunPolicySerial schedules new builds to execute in a sequence as
+	// they are created. Every build gets queued up and will execute when the
+	// previous build completes. This is the default policy.
+	BuildRunPolicySerial BuildRunPolicy = "Serial"
+
+	// BuildRunPolicySerialLatestOnly schedules only the latest build to execute,
+	// cancelling all the previously queued build.
+	BuildRunPolicySerialLatestOnly BuildRunPolicy = "SerialLatestOnly"
+)
+
 // BuildConfigStatus contains current state of the build config object.
 type BuildConfigStatus struct {
 	// LastVersion is used to inform about number of last triggered build.

pkg/build/api/validation/validation.go

@@ -82,6 +82,13 @@ func ValidateBuildConfig(config *buildapi.BuildConfig) field.ErrorList {
 		fromRefs[fromKey] = struct{}{}
 	}
 
+	switch config.Spec.RunPolicy {
+	case buildapi.BuildRunPolicyParallel, buildapi.BuildRunPolicySerial, buildapi.BuildRunPolicySerialLatestOnly:
+	default:
+		allErrs = append(allErrs, field.Invalid(specPath.Child("runPolicy"), config.Spec.RunPolicy,
+			"run policy must Parallel, Serial, or SerialLatestOnly"))
+	}
+
 	allErrs = append(allErrs, validateBuildSpec(&config.Spec.BuildSpec, specPath)...)
 
 	return allErrs

pkg/build/api/validation/validation_test.go

@@ -137,6 +137,7 @@ func TestBuildConfigEmptySource(t *testing.T) {
 		{
 			ObjectMeta: kapi.ObjectMeta{Name: "config-id", Namespace: "namespace"},
 			Spec: buildapi.BuildConfigSpec{
+				RunPolicy: buildapi.BuildRunPolicySerial,
 				BuildSpec: buildapi.BuildSpec{
 					Source: buildapi.BuildSource{},
 					Strategy: buildapi.BuildStrategy{
@@ -159,6 +160,7 @@ func TestBuildConfigEmptySource(t *testing.T) {
 		{
 			ObjectMeta: kapi.ObjectMeta{Name: "config-id", Namespace: "namespace"},
 			Spec: buildapi.BuildConfigSpec{
+				RunPolicy: buildapi.BuildRunPolicySerial,
 				BuildSpec: buildapi.BuildSpec{
 					Source: buildapi.BuildSource{},
 					Strategy: buildapi.BuildStrategy{
@@ -188,6 +190,7 @@ func TestBuildConfigEmptySource(t *testing.T) {
 	badBuildConfig := buildapi.BuildConfig{
 		ObjectMeta: kapi.ObjectMeta{Name: "config-id", Namespace: "namespace"},
 		Spec: buildapi.BuildConfigSpec{
+			RunPolicy: buildapi.BuildRunPolicySerial,
 			BuildSpec: buildapi.BuildSpec{
 				Source: buildapi.BuildSource{},
 				Strategy: buildapi.BuildStrategy{
@@ -384,6 +387,7 @@ func TestBuildConfigGitSourceWithProxyFailure(t *testing.T) {
 	buildConfig := &buildapi.BuildConfig{
 		ObjectMeta: kapi.ObjectMeta{Name: "config-id", Namespace: "namespace"},
 		Spec: buildapi.BuildConfigSpec{
+			RunPolicy: buildapi.BuildRunPolicySerial,
 			BuildSpec: buildapi.BuildSpec{
 				Source: buildapi.BuildSource{
 					Git: &buildapi.GitBuildSource{
@@ -424,6 +428,7 @@ func TestBuildConfigDockerStrategyImageChangeTrigger(t *testing.T) {
 	buildConfig := &buildapi.BuildConfig{
 		ObjectMeta: kapi.ObjectMeta{Name: "config-id", Namespace: "namespace"},
 		Spec: buildapi.BuildConfigSpec{
+			RunPolicy: buildapi.BuildRunPolicySerial,
 			BuildSpec: buildapi.BuildSpec{
 				Source: buildapi.BuildSource{
 					Git: &buildapi.GitBuildSource{
@@ -467,6 +472,7 @@ func TestBuildConfigValidationFailureRequiredName(t *testing.T) {
 	buildConfig := &buildapi.BuildConfig{
 		ObjectMeta: kapi.ObjectMeta{Name: "", Namespace: "foo"},
 		Spec: buildapi.BuildConfigSpec{
+			RunPolicy: buildapi.BuildRunPolicySerial,
 			BuildSpec: buildapi.BuildSpec{
 				Source: buildapi.BuildSource{
 					Git: &buildapi.GitBuildSource{
@@ -738,6 +744,7 @@ func TestBuildConfigImageChangeTriggers(t *testing.T) {
 		buildConfig := &buildapi.BuildConfig{
 			ObjectMeta: kapi.ObjectMeta{Name: "bar", Namespace: "foo"},
 			Spec: buildapi.BuildConfigSpec{
+				RunPolicy: buildapi.BuildRunPolicySerial,
 				BuildSpec: buildapi.BuildSpec{
 					Source: buildapi.BuildSource{
 						Git: &buildapi.GitBuildSource{
@@ -782,6 +789,7 @@ func TestBuildConfigValidationOutputFailure(t *testing.T) {
 	buildConfig := &buildapi.BuildConfig{
 		ObjectMeta: kapi.ObjectMeta{Name: ""},
 		Spec: buildapi.BuildConfigSpec{
+			RunPolicy: buildapi.BuildRunPolicySerial,
 			BuildSpec: buildapi.BuildSpec{
 				Source: buildapi.BuildSource{
 					Git: &buildapi.GitBuildSource{

pkg/build/client/clients.go

@@ -3,6 +3,7 @@ package client
 import (
 	buildapi "github.com/openshift/origin/pkg/build/api"
 	osclient "github.com/openshift/origin/pkg/client"
+	kapi "k8s.io/kubernetes/pkg/api"
 )
 
 // BuildConfigGetter provides methods for getting BuildConfigs
@@ -41,6 +42,11 @@ type BuildUpdater interface {
 	Update(namespace string, build *buildapi.Build) error
 }
 
+// BuildLister provides methods for listing the Builds.
+type BuildLister interface {
+	List(namespace string, opts kapi.ListOptions) (*buildapi.BuildList, error)
+}
+
 // OSClientBuildClient deletes build create and update operations to the OpenShift client interface
 type OSClientBuildClient struct {
 	Client osclient.Interface
@@ -57,6 +63,11 @@ func (c OSClientBuildClient) Update(namespace string, build *buildapi.Build) err
 	return e
 }
 
+// List lists the builds using the OpenShift client.
+func (c OSClientBuildClient) List(namespace string, opts kapi.ListOptions) (*buildapi.BuildList, error) {
+	return c.Client.Builds(namespace).List(opts)
+}
+
 // BuildCloner provides methods for cloning builds
 type BuildCloner interface {
 	Clone(namespace string, request *buildapi.BuildRequest) (*buildapi.Build, error)