// GetNextConfigBuild returns the build that will be executed next for the given
// build configuration. It also returns the indication whether there are
// currently running builds, to make sure there is no race-condition between
// re-listing the builds.
func GetNextConfigBuild(lister buildclient.BuildLister, namespace, buildConfigName string) (*buildapi.Build, bool, error) {
var (
nextBuild *buildapi.Build
hasRunningBuilds bool
previousBuildNumber int64
)
builds, err := buildutil.BuildConfigBuilds(lister, namespace, buildConfigName, func(b buildapi.Build) bool {
switch b.Status.Phase {
case buildapi.BuildPhasePending, buildapi.BuildPhaseRunning:
hasRunningBuilds = true
return false
}
// Only 'new' build can be scheduled to run next
return b.Status.Phase == buildapi.BuildPhaseNew
})
if err != nil {
return nil, hasRunningBuilds, err
}
for i, b := range builds.Items {
buildNumber, err := buildutil.BuildNumber(&b)
if err != nil {
return nil, hasRunningBuilds, err
}
if previousBuildNumber == 0 || buildNumber < previousBuildNumber {
nextBuild = &builds.Items[i]
previousBuildNumber = buildNumber
}
}
return nextBuild, hasRunningBuilds, nil
}
// hasRunningSerialBuild indicates that there is a running or pending serial
// build. This function is used to prevent running parallel builds because
// serial builds should always run alone.
func hasRunningSerialBuild(lister buildclient.BuildLister, namespace, buildConfigName string) bool {
var hasRunningBuilds bool
buildutil.BuildConfigBuilds(lister, namespace, buildConfigName, func(b buildapi.Build) bool {
switch b.Status.Phase {
case buildapi.BuildPhasePending, buildapi.BuildPhaseRunning:
switch buildutil.BuildRunPolicy(&b) {
case buildapi.BuildRunPolicySerial, buildapi.BuildRunPolicySerialLatestOnly:
hasRunningBuilds = true
}
}
return false
})
return hasRunningBuilds
}
// GetNextConfigBuild returns the build that will be executed next for the given
// build configuration. It also returns the indication whether there are
// currently running builds, to make sure there is no race-condition between
// re-listing the builds.
func GetNextConfigBuild(lister buildclient.BuildLister, namespace, buildConfigName string) ([]*buildapi.Build, bool, error) {
var (
nextBuild *buildapi.Build
hasRunningBuilds bool
previousBuildNumber int64
)
builds, err := buildutil.BuildConfigBuilds(lister, namespace, buildConfigName, func(b buildapi.Build) bool {
switch b.Status.Phase {
case buildapi.BuildPhasePending, buildapi.BuildPhaseRunning:
hasRunningBuilds = true
return false
}
// Only 'new' build can be scheduled to run next
return b.Status.Phase == buildapi.BuildPhaseNew
})
if err != nil {
return nil, hasRunningBuilds, err
}
nextParallelBuilds := []*buildapi.Build{}
for i, b := range builds.Items {
buildNumber, err := buildutil.BuildNumber(&b)
if err != nil {
return nil, hasRunningBuilds, err
}
if buildutil.BuildRunPolicy(&b) == buildapi.BuildRunPolicyParallel {
nextParallelBuilds = append(nextParallelBuilds, &builds.Items[i])
}
if previousBuildNumber == 0 || buildNumber < previousBuildNumber {
nextBuild = &builds.Items[i]
previousBuildNumber = buildNumber
}
}
nextBuilds := []*buildapi.Build{}
// if the next build is a parallel build, then start all the queued parallel builds,
// otherwise just start the next build if there is one.
if nextBuild != nil && buildutil.BuildRunPolicy(nextBuild) == buildapi.BuildRunPolicyParallel {
nextBuilds = nextParallelBuilds
} else if nextBuild != nil {
nextBuilds = append(nextBuilds, nextBuild)
}
return nextBuilds, hasRunningBuilds, nil
}
// 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
}
break
}
continue
}
// When the the other two builds we started after waiting for the first
// build to become running are Pending, verify the first build is still
// running (so the other two builds are started in parallel with first
// build).
// TODO: This might introduce flakes in case the first build complete
// sooner or fail.
if build.Status.Phase == buildapi.BuildPhasePending {
c := buildclient.NewOSClientBuildClient(oc.Client())
firstBuildRunning := false
_, err := buildutil.BuildConfigBuilds(c, oc.Namespace(), bcName, func(b buildapi.Build) bool {
if b.Name == startedBuilds[0] && b.Status.Phase == buildapi.BuildPhaseRunning {
firstBuildRunning = true
}
return false
})
o.Expect(err).NotTo(o.HaveOccurred())
o.Expect(firstBuildRunning).Should(o.BeTrue())
counter++
}
// When the build failed or completed prematurely, fail the test
o.Expect(buildutil.IsBuildComplete(build)).Should(o.BeFalse())
if counter == 2 {
break
}
}
o.Expect(counter).Should(o.BeEquivalentTo(2))
})
})
// Complete completes all the required options.
func (o *CancelBuildOptions) Complete(f *clientcmd.Factory, cmd *cobra.Command, args []string, in io.Reader, out io.Writer) error {
o.In = in
o.Out = out
o.ErrOut = cmd.OutOrStderr()
o.ReportError = func(err error) {
o.HasError = true
fmt.Fprintf(o.ErrOut, "error: %s\n", err.Error())
}
if len(args) == 0 {
return kcmdutil.UsageError(cmd, "Must pass a name of a build or a buildconfig to cancel")
}
namespace, _, err := f.DefaultNamespace()
if err != nil {
return err
}
if len(o.States) == 0 {
// If --state is not specified, set the default to "new", "pending" and
// "running".
o.States = []string{"new", "pending", "running"}
} else {
for _, state := range o.States {
if len(state) > 0 && !isStateCancellable(state) {
return kcmdutil.UsageError(cmd, "The '--state' flag has invalid value. Must be one of 'new', 'pending', or 'running'")
}
}
}
client, _, err := f.Clients()
if err != nil {
return err
}
o.Namespace = namespace
o.Client = client
o.BuildLister = buildclient.NewOSClientBuildClient(client)
o.BuildClient = client.Builds(namespace)
o.Mapper, _ = f.Object(false)
for _, item := range args {
resource, name, err := cmdutil.ResolveResource(buildapi.Resource("builds"), item, o.Mapper)
if err != nil {
return err
}
switch resource {
case buildapi.Resource("buildconfigs"):
list, err := buildutil.BuildConfigBuilds(o.BuildLister, o.Namespace, name, nil)
if err != nil {
return err
}
for _, b := range list.Items {
o.BuildNames = append(o.BuildNames, b.Name)
}
case buildapi.Resource("builds"):
o.BuildNames = append(o.BuildNames, strings.TrimSpace(name))
default:
return fmt.Errorf("invalid resource provided: %v", resource)
}
}
return nil
}
