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controller_build.go
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controller_build.go
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package cmd
import (
"io"
"reflect"
"strings"
"time"
"unicode"
"github.com/jenkins-x/jx/pkg/apis/jenkins.io/v1"
"github.com/jenkins-x/jx/pkg/builds"
"github.com/jenkins-x/jx/pkg/client/clientset/versioned"
"github.com/jenkins-x/jx/pkg/log"
"github.com/jenkins-x/jx/pkg/util"
"github.com/spf13/cobra"
"gopkg.in/AlecAivazis/survey.v1/terminal"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/client-go/tools/cache"
"github.com/jenkins-x/jx/pkg/kube"
)
// ControllerBuildOptions are the flags for the commands
type ControllerBuildOptions struct {
ControllerOptions
Namespace string
}
// NewCmdControllerBuild creates a command object for the generic "get" action, which
// retrieves one or more resources from a server.
func NewCmdControllerBuild(f Factory, in terminal.FileReader, out terminal.FileWriter, errOut io.Writer) *cobra.Command {
options := &ControllerBuildOptions{
ControllerOptions: ControllerOptions{
CommonOptions: CommonOptions{
Factory: f,
In: in,
Out: out,
Err: errOut,
},
},
}
cmd := &cobra.Command{
Use: "build",
Short: "Runs the build controller",
Run: func(cmd *cobra.Command, args []string) {
options.Cmd = cmd
options.Args = args
err := options.Run()
CheckErr(err)
},
Aliases: []string{"builds"},
}
cmd.Flags().StringVarP(&options.Namespace, "namespace", "n", "", "The namespace to watch or defaults to the current namespace")
return cmd
}
// Run implements this command
func (o *ControllerBuildOptions) Run() error {
apisClient, err := o.CreateApiExtensionsClient()
if err != nil {
return err
}
err = kube.RegisterPipelineActivityCRD(apisClient)
if err != nil {
return err
}
jxClient, devNs, err := o.JXClientAndDevNamespace()
if err != nil {
return err
}
client, _, err := o.KubeClient()
if err != nil {
return err
}
ns := o.Namespace
if ns == "" {
ns = devNs
}
pod := &corev1.Pod{}
log.Infof("Watching for Knative build pods in namespace %s\n", util.ColorInfo(ns))
listWatch := cache.NewListWatchFromClient(client.CoreV1().RESTClient(), "pods", ns, fields.Everything())
kube.SortListWatchByName(listWatch)
_, controller := cache.NewInformer(
listWatch,
pod,
time.Minute*10,
cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
o.onPod(obj, jxClient, ns)
},
UpdateFunc: func(oldObj, newObj interface{}) {
o.onPod(newObj, jxClient, ns)
},
DeleteFunc: func(obj interface{}) {
},
},
)
stop := make(chan struct{})
go controller.Run(stop)
// Wait forever
select {}
}
func (o *ControllerBuildOptions) onPod(obj interface{}, jxClient versioned.Interface, ns string) {
pod, ok := obj.(*corev1.Pod)
if !ok {
log.Infof("Object is not a Pod %#v\n", obj)
return
}
if pod != nil {
labels := pod.Labels
if labels != nil {
buildName := labels[builds.LabelBuildName]
if buildName == "" {
buildName = labels[builds.LabelOldBuildName]
}
if buildName != "" {
log.Infof("Found build pod %s\n", pod.Name)
activities := jxClient.JenkinsV1().PipelineActivities(ns)
key := o.createPromoteStepActivityKey(buildName, pod)
if key != nil {
a, created, err := key.GetOrCreate(activities)
if err != nil {
operation := "update"
if created {
operation = "create"
}
log.Warnf("Failed to %s PipelineActivities for build %s: %s\n", operation, buildName, err)
}
if o.updatePipelineActivity(a, buildName, pod) {
_, err := activities.Update(a)
if err != nil {
log.Warnf("Failed to update PipelineActivities%s: %s\n", a.Name, err)
}
}
}
}
}
}
}
// createPromoteStepActivityKey deduces the pipeline metadata from the Knative build pod
func (o *ControllerBuildOptions) createPromoteStepActivityKey(buildName string, pod *corev1.Pod) *kube.PromoteStepActivityKey {
buildInfo := builds.CreateBuildPodInfo(pod)
if buildInfo.GitURL == "" || buildInfo.GitInfo == nil {
return nil
}
return &kube.PromoteStepActivityKey{
PipelineActivityKey: kube.PipelineActivityKey{
Name: buildInfo.Name,
Pipeline: buildInfo.Pipeline,
Build: buildInfo.Build,
LastCommitSHA: buildInfo.LastCommitSHA,
LastCommitMessage: buildInfo.LastCommitMessage,
LastCommitURL: buildInfo.LastCommitURL,
GitInfo: buildInfo.GitInfo,
},
}
}
func (o *ControllerBuildOptions) updatePipelineActivity(activity *v1.PipelineActivity, s string, pod *corev1.Pod) bool {
copy := *activity
// TODO update the steps based on the Knative build pod's init containers
for _, c := range pod.Status.InitContainerStatuses {
name := strings.Replace(strings.TrimPrefix(c.Name, "build-step-"), "-", " ", -1)
title := strings.Title(name)
_, stage, _ := kube.GetOrCreateStage(activity, title)
running := c.State.Running
terminated := c.State.Terminated
var startedAt metav1.Time
var finishedAt metav1.Time
if running != nil {
startedAt = running.StartedAt
} else if terminated != nil {
startedAt = terminated.StartedAt
finishedAt = terminated.FinishedAt
if !finishedAt.IsZero() {
stage.CompletedTimestamp = &finishedAt
}
}
if !startedAt.IsZero() {
stage.StartedTimestamp = &startedAt
}
stage.Description = createStepDescription(c.Name, pod)
if terminated != nil {
if terminated.ExitCode == 0 {
stage.Status = v1.ActivityStatusTypeSucceeded
} else {
stage.Status = v1.ActivityStatusTypeFailed
}
} else {
if running != nil {
stage.Status = v1.ActivityStatusTypeRunning
} else {
stage.Status = v1.ActivityStatusTypePending
}
}
}
spec := &activity.Spec
var biggestFinishedAt metav1.Time
allCompleted := true
failed := false
running := true
for _, step := range spec.Steps {
stage := step.Stage
if stage != nil {
stageFinished := false
if stage.StartedTimestamp != nil && spec.StartedTimestamp == nil {
spec.StartedTimestamp = stage.StartedTimestamp
}
if stage.CompletedTimestamp != nil {
t := stage.CompletedTimestamp
if !t.IsZero() {
stageFinished = true
if biggestFinishedAt.IsZero() || t.After(biggestFinishedAt.Time) {
biggestFinishedAt = *t
}
}
}
if stageFinished {
if stage.Status != v1.ActivityStatusTypeSucceeded {
failed = true
}
} else {
allCompleted = false
}
if stage.Status == v1.ActivityStatusTypeRunning {
running = true
}
if stage.Status == v1.ActivityStatusTypeRunning || stage.Status == v1.ActivityStatusTypePending {
allCompleted = false
}
}
}
if allCompleted {
if failed {
spec.Status = v1.ActivityStatusTypeFailed
} else {
spec.Status = v1.ActivityStatusTypeSucceeded
}
if !biggestFinishedAt.IsZero() {
spec.CompletedTimestamp = &biggestFinishedAt
}
} else {
if running {
spec.Status = v1.ActivityStatusTypeRunning
} else {
spec.Status = v1.ActivityStatusTypePending
}
}
return !reflect.DeepEqual(©, activity)
}
// createStepDescription uses the spec of the init container to return a description
func createStepDescription(initContainerName string, pod *corev1.Pod) string {
for _, c := range pod.Spec.InitContainers {
if c.Name == initContainerName {
return strings.Join(c.Args, " ")
}
}
return ""
}
// DigitSuffix outputs digital suffix
func DigitSuffix(text string) string {
answer := ""
for {
l := len(text)
if l == 0 {
return answer
}
lastChar := text[l-1:]
for _, rune := range lastChar {
if !unicode.IsDigit(rune) {
return answer
}
break
}
answer = lastChar + answer
text = text[0 : l-1]
}
}