// IsRunnable implements the RunPolicy interface. The parallel builds are run as soon
// as they are created. There is no build queue as all build run asynchronously.
func (s *ParallelPolicy) IsRunnable(build *buildapi.Build) (bool, error) {
bcName := buildutil.ConfigNameForBuild(build)
if len(bcName) == 0 {
return false, NewNoBuildConfigLabelError(build)
}
return !hasRunningSerialBuild(s.BuildLister, build.Namespace, bcName), nil
}
// handleComplete represents the default OnComplete handler. This Handler will
// check which build should be run next and update the StartTimestamp field for
// that build. That will trigger HandleBuild() to process that build immediately
// and as a result the build is immediately executed.
func handleComplete(lister buildclient.BuildLister, updater buildclient.BuildUpdater, build *buildapi.Build) error {
bcName := buildutil.ConfigNameForBuild(build)
if len(bcName) == 0 {
return nil
}
nextBuilds, hasRunningBuilds, err := GetNextConfigBuild(lister, build.Namespace, bcName)
if err != nil {
return fmt.Errorf("unable to get the next build for %s/%s: %v", build.Namespace, build.Name, err)
}
if hasRunningBuilds || len(nextBuilds) == 0 {
return nil
}
now := unversioned.Now()
for _, build := range nextBuilds {
build.Status.StartTimestamp = &now
err := wait.Poll(500*time.Millisecond, 5*time.Second, func() (bool, error) {
err := updater.Update(build.Namespace, build)
if err != nil && errors.IsConflict(err) {
glog.V(5).Infof("Error updating build %s/%s: %v (will retry)", build.Namespace, build.Name, err)
return false, nil
}
return true, err
})
if err != nil {
return err
}
}
return nil
}
// IsRunnable implements the RunPolicy interface.
func (s *SerialPolicy) IsRunnable(build *buildapi.Build) (bool, error) {
bcName := buildutil.ConfigNameForBuild(build)
if len(bcName) == 0 {
return false, NewNoBuildConfigLabelError(build)
}
nextBuild, runningBuilds, err := GetNextConfigBuild(s.BuildLister, build.Namespace, bcName)
return !runningBuilds && (nextBuild != nil && nextBuild.Name == build.Name), err
}
// IsRunnable implements the RunPolicy interface.
func (s *SerialPolicy) IsRunnable(build *buildapi.Build) (bool, error) {
bcName := buildutil.ConfigNameForBuild(build)
if len(bcName) == 0 {
return true, nil
}
nextBuilds, runningBuilds, err := GetNextConfigBuild(s.BuildLister, build.Namespace, bcName)
if err != nil || runningBuilds {
return false, err
}
return len(nextBuilds) == 1 && nextBuilds[0].Name == build.Name, err
}
// IsRunnable implements the RunPolicy interface.
// Calling this function on a build mean that any previous build that is in
// 'new' phase will be automatically cancelled. This will also cancel any
// "serial" build (when you changed the build config run policy on-the-fly).
func (s *SerialLatestOnlyPolicy) IsRunnable(build *buildapi.Build) (bool, error) {
bcName := buildutil.ConfigNameForBuild(build)
if len(bcName) == 0 {
return true, nil
}
if err := kerrors.NewAggregate(s.cancelPreviousBuilds(build)); err != nil {
return false, err
}
nextBuild, runningBuilds, err := GetNextConfigBuild(s.BuildLister, build.Namespace, bcName)
if err != nil || runningBuilds {
return false, err
}
return nextBuild != nil && nextBuild.Name == build.Name, err
}
// cancelPreviousBuilds cancels all queued builds that have the build sequence number
// lower than the given build. It retries the cancellation in case of conflict.
func (s *SerialLatestOnlyPolicy) cancelPreviousBuilds(build *buildapi.Build) []error {
bcName := buildutil.ConfigNameForBuild(build)
if len(bcName) == 0 {
return []error{}
}
currentBuildNumber, err := buildutil.BuildNumber(build)
if err != nil {
return []error{NewNoBuildNumberAnnotationError(build)}
}
builds, err := buildutil.BuildConfigBuilds(s.BuildLister, build.Namespace, bcName, func(b buildapi.Build) bool {
// Do not cancel the complete builds, builds that were already cancelled, or
// running builds.
if buildutil.IsBuildComplete(&b) || b.Status.Phase == buildapi.BuildPhaseRunning {
return false
}
// Prevent race-condition when there is a newer build than this and we don't
// want to cancel it. The HandleBuild() function that runs for that build
// will cancel this build.
buildNumber, _ := buildutil.BuildNumber(&b)
return buildNumber < currentBuildNumber
})
if err != nil {
return []error{err}
}
var result = []error{}
for _, b := range builds.Items {
err := wait.Poll(500*time.Millisecond, 5*time.Second, func() (bool, error) {
b.Status.Cancelled = true
err := s.BuildUpdater.Update(b.Namespace, &b)
if err != nil && errors.IsConflict(err) {
glog.V(5).Infof("Error cancelling build %s/%s: %v (will retry)", b.Namespace, b.Name, err)
return false, nil
}
return true, err
})
if err != nil {
result = append(result, err)
}
}
return result
}
// Get returns a streamer resource with the contents of the build log
func (r *REST) Get(ctx kapi.Context, name string, opts runtime.Object) (runtime.Object, error) {
buildLogOpts, ok := opts.(*api.BuildLogOptions)
if !ok {
return nil, errors.NewBadRequest("did not get an expected options.")
}
if errs := validation.ValidateBuildLogOptions(buildLogOpts); len(errs) > 0 {
return nil, errors.NewInvalid("buildLogOptions", "", errs)
}
obj, err := r.Getter.Get(ctx, name)
if err != nil {
return nil, err
}
build := obj.(*api.Build)
if buildLogOpts.Previous {
version := buildutil.VersionForBuild(build)
// Use the previous version
version--
previousBuildName := buildutil.BuildNameForConfigVersion(buildutil.ConfigNameForBuild(build), version)
previous, err := r.Getter.Get(ctx, previousBuildName)
if err != nil {
return nil, err
}
build = previous.(*api.Build)
}
switch build.Status.Phase {
// Build has not launched, wait til it runs
case api.BuildPhaseNew, api.BuildPhasePending:
if buildLogOpts.NoWait {
glog.V(4).Infof("Build %s/%s is in %s state. No logs to retrieve yet.", build.Namespace, build.Name, build.Status.Phase)
// return empty content if not waiting for build
return &genericrest.LocationStreamer{}, nil
}
glog.V(4).Infof("Build %s/%s is in %s state, waiting for Build to start", build.Namespace, build.Name, build.Status.Phase)
latest, ok, err := registry.WaitForRunningBuild(r.Watcher, ctx, build, r.Timeout)
if err != nil {
return nil, errors.NewBadRequest(fmt.Sprintf("unable to wait for build %s to run: %v", build.Name, err))
}
switch latest.Status.Phase {
case api.BuildPhaseError:
return nil, errors.NewBadRequest(fmt.Sprintf("build %s encountered an error: %s", build.Name, buildutil.NoBuildLogsMessage))
case api.BuildPhaseCancelled:
return nil, errors.NewBadRequest(fmt.Sprintf("build %s was cancelled: %s", build.Name, buildutil.NoBuildLogsMessage))
}
if !ok {
return nil, errors.NewTimeoutError(fmt.Sprintf("timed out waiting for build %s to start after %s", build.Name, r.Timeout), 1)
}
// The build was cancelled
case api.BuildPhaseCancelled:
return nil, errors.NewBadRequest(fmt.Sprintf("build %s was cancelled. %s", build.Name, buildutil.NoBuildLogsMessage))
// An error occurred launching the build, return an error
case api.BuildPhaseError:
return nil, errors.NewBadRequest(fmt.Sprintf("build %s is in an error state. %s", build.Name, buildutil.NoBuildLogsMessage))
}
// The container should be the default build container, so setting it to blank
buildPodName := buildutil.GetBuildPodName(build)
logOpts := api.BuildToPodLogOptions(buildLogOpts)
location, transport, err := pod.LogLocation(r.PodGetter, r.ConnectionInfo, ctx, buildPodName, logOpts)
if err != nil {
if errors.IsNotFound(err) {
return nil, errors.NewNotFound("pod", buildPodName)
}
return nil, errors.NewBadRequest(err.Error())
}
return &genericrest.LocationStreamer{
Location: location,
Transport: transport,
ContentType: "text/plain",
Flush: buildLogOpts.Follow,
ResponseChecker: genericrest.NewGenericHttpResponseChecker("Pod", buildPodName),
}, nil
}
