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get_build_logs.go
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/
get_build_logs.go
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package cmd
import (
"fmt"
"github.com/jenkins-x/jx/pkg/gits"
"io"
"os"
"sort"
"strings"
"time"
"github.com/pkg/errors"
"github.com/jenkins-x/golang-jenkins"
"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/kube"
"github.com/spf13/cobra"
"gopkg.in/AlecAivazis/survey.v1/terminal"
"k8s.io/client-go/kubernetes"
"github.com/jenkins-x/jx/pkg/jx/cmd/templates"
"github.com/jenkins-x/jx/pkg/log"
"github.com/jenkins-x/jx/pkg/util"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// GetBuildLogsOptions the command line options
type GetBuildLogsOptions struct {
GetOptions
Tail bool
Wait bool
BuildFilter builds.BuildPodInfoFilter
CurrentFolder bool
WaitForPipelineDuration time.Duration
}
var (
get_build_log_long = templates.LongDesc(`
Display a build log
`)
get_build_log_example = templates.Examples(`
# Display a build log - with the user choosing which repo + build to view
jx get build log
# Pick a build to view the log based on the repo cheese
jx get build log --repo cheese
# Pick a pending knative build to view the log based
jx get build log -p
# Pick a pending knative build to view the log based on the repo cheese
jx get build log --repo cheese -p
# Pick a knative build for the 1234 Pull Request on the repo cheese
jx get build log --repo cheese --branch PR-1234
`)
)
// NewCmdGetBuildLogs creates the command
func NewCmdGetBuildLogs(f Factory, in terminal.FileReader, out terminal.FileWriter, errOut io.Writer) *cobra.Command {
options := &GetBuildLogsOptions{
GetOptions: GetOptions{
CommonOptions: CommonOptions{
Factory: f,
In: in,
Out: out,
Err: errOut,
},
},
}
cmd := &cobra.Command{
Use: "log [flags]",
Short: "Display a build log",
Long: get_build_log_long,
Example: get_build_log_example,
Aliases: []string{"logs"},
Run: func(cmd *cobra.Command, args []string) {
options.Cmd = cmd
options.Args = args
err := options.Run()
CheckErr(err)
},
}
cmd.Flags().BoolVarP(&options.Tail, "tail", "t", true, "Tails the build log to the current terminal")
cmd.Flags().BoolVarP(&options.Wait, "wait", "w", false, "Waits for the build to start before failing")
cmd.Flags().DurationVarP(&options.WaitForPipelineDuration, "wait-duration", "d", time.Minute*5, "Timeout period waiting for the given pipeline to be created")
cmd.Flags().BoolVarP(&options.BuildFilter.Pending, "pending", "p", false, "Only display logs which are currently pending to choose from if no build name is supplied")
cmd.Flags().StringVarP(&options.BuildFilter.Filter, "filter", "f", "", "Filters all the available jobs by those that contain the given text")
cmd.Flags().StringVarP(&options.BuildFilter.Owner, "owner", "o", "", "Filters the owner (person/organisation) of the repository")
cmd.Flags().StringVarP(&options.BuildFilter.Repository, "repo", "r", "", "Filters the build repository")
cmd.Flags().StringVarP(&options.BuildFilter.Branch, "branch", "", "", "Filters the branch")
cmd.Flags().StringVarP(&options.BuildFilter.Build, "build", "b", "", "The build number to view")
cmd.Flags().BoolVarP(&options.CurrentFolder, "current", "c", false, "Display logs using current folder as repo name, and parent folder as owner")
return cmd
}
// Run implements this command
func (o *GetBuildLogsOptions) Run() error {
jxClient, ns, err := o.JXClientAndDevNamespace()
if err != nil {
return err
}
kubeClient, err := o.KubeClient()
if err != nil {
return err
}
devEnv, err := kube.GetEnrichedDevEnvironment(kubeClient, jxClient, ns)
webhookEngine := devEnv.Spec.WebHookEngine
if webhookEngine == v1.WebHookEngineProw {
return o.getProwBuildLog(kubeClient, jxClient, ns)
}
args := o.Args
if !o.BatchMode && len(args) == 0 {
jobMap, err := o.getJobMap(o.BuildFilter.Filter)
if err != nil {
return err
}
names := []string{}
for k := range jobMap {
names = append(names, k)
}
sort.Strings(names)
if len(names) == 0 {
return fmt.Errorf("No pipelines have been built!")
}
defaultName := ""
for _, n := range names {
if strings.HasSuffix(n, "/master") {
defaultName = n
break
}
}
name, err := util.PickNameWithDefault(names, "Which pipeline do you want to view the logs of?: ", defaultName, "", o.In, o.Out, o.Err)
if err != nil {
return err
}
args = []string{name}
}
if len(args) == 0 {
return fmt.Errorf("No pipeline chosen")
}
name := args[0]
buildNumber := o.BuildFilter.BuildNumber()
last, err := o.getLastJenkinsBuild(name, buildNumber)
if err != nil {
return err
}
log.Infof("%s %s\n", util.ColorStatus("view the log at:"), util.ColorInfo(util.UrlJoin(last.Url, "/console")))
return o.tailBuild(name, &last)
}
func (o *GetBuildLogsOptions) getLastJenkinsBuild(name string, buildNumber int) (gojenkins.Build, error) {
var last gojenkins.Build
jenkinsClient, err := o.JenkinsClient()
if err != nil {
return last, err
}
f := func() error {
var err error
jobMap, err := o.getJobMap(o.BuildFilter.Filter)
if err != nil {
return err
}
job := jobMap[name]
if job.Url == "" {
return fmt.Errorf("No Job exists yet called %s", name)
}
if buildNumber > 0 {
last, err = jenkinsClient.GetBuild(job, buildNumber)
} else {
last, err = jenkinsClient.GetLastBuild(job)
}
if err != nil {
return err
}
if last.Url == "" {
if buildNumber > 0 {
return fmt.Errorf("No build found for name %s number %d", name, buildNumber)
} else {
return fmt.Errorf("No build found for name %s", name)
}
}
return err
}
if o.Wait {
err := o.retry(60, time.Second*2, f)
return last, err
} else {
err := f()
return last, err
}
}
func (o *GetBuildLogsOptions) getProwBuildLog(kubeClient kubernetes.Interface, jxClient versioned.Interface, ns string) error {
if o.CurrentFolder {
currentDirectory, err := os.Getwd()
if err != nil {
return err
}
gitRepository, err := gits.NewGitCLI().Info(currentDirectory)
if err != nil {
return err
}
o.BuildFilter.Repository = gitRepository.Name
o.BuildFilter.Owner = gitRepository.Organisation
}
names, defaultName, buildMap, pipelineMap, err := o.loadPipelines(kubeClient, ns)
if err != nil {
return err
}
args := o.Args
pickedPipeline := false
if len(args) == 0 {
if o.BatchMode {
return util.MissingArgument("pipeline")
}
pickedPipeline = true
name, err := util.PickNameWithDefault(names, "Which build do you want to view the logs of?: ", defaultName, "", o.In, o.Out, o.Err)
if err != nil {
return err
}
args = []string{name}
}
if len(args) == 0 {
return fmt.Errorf("No pipeline chosen")
}
name := args[0]
build := buildMap[name]
suffix := ""
if build == nil {
build = pipelineMap[name]
if build != nil {
suffix = " #" + build.Build
}
}
if build == nil && !pickedPipeline && o.Wait {
log.Infof("waiting for pipeline %s to start...\n", util.ColorInfo(name))
// there's no pipeline with yet called 'name' so lets wait for it to start...
f := func() error {
var err error
names, defaultName, buildMap, pipelineMap, err = o.loadPipelines(kubeClient, ns)
if err != nil {
return err
}
build = buildMap[name]
if build == nil {
build = pipelineMap[name]
if build != nil {
suffix = " #" + build.Build
}
}
if build == nil {
log.Infof("no build found in: %s\n", util.ColorInfo(strings.Join(names, ", ")))
return fmt.Errorf("No pipeline exists yet: %s", name)
}
return nil
}
err := util.Retry(o.WaitForPipelineDuration, f)
if err != nil {
return err
}
}
if build == nil {
return fmt.Errorf("No Pipeline found for name %s in values: %s", name, strings.Join(names, ", "))
}
pod := build.Pod
if pod == nil {
return fmt.Errorf("No Pod found for name %s", name)
}
initContainers := pod.Spec.InitContainers
if len(initContainers) <= 0 {
return fmt.Errorf("No InitContainers for Pod %s for build: %s", pod.Name, name)
}
log.Infof("Build logs for %s\n", util.ColorInfo(name+suffix))
for i, ic := range initContainers {
pod, err = kubeClient.CoreV1().Pods(ns).Get(pod.Name, metav1.GetOptions{})
if err != nil {
return errors.Wrapf(err, "failed to find pod %s", pod.Name)
}
if i > 0 {
icStatuses := pod.Status.InitContainerStatuses
if i < len(icStatuses) {
lastContainer := icStatuses[i-1]
terminated := lastContainer.State.Terminated
if terminated != nil && terminated.ExitCode != 0 {
log.Warnf("container %s failed with exit code %d: %s\n", lastContainer.Name, terminated.ExitCode, terminated.Message)
}
}
}
pod, err = waitForInitContainerToStart(kubeClient, ns, pod, i)
if err != nil {
return err
}
err = o.getPodLog(ns, pod, ic)
if err != nil {
return err
}
}
return nil
}
func waitForInitContainerToStart(kubeClient kubernetes.Interface, ns string, pod *corev1.Pod, idx int) (*corev1.Pod, error) {
if pod.Status.Phase == corev1.PodFailed {
log.Warnf("pod %s has failed\n", pod.Name)
return pod, nil
}
if kube.HasInitContainerStarted(pod, idx) {
return pod, nil
}
containerName := ""
if idx < len(pod.Spec.InitContainers) {
containerName = pod.Spec.InitContainers[idx].Name
}
log.Infof("waiting for pod %s init container %s to start...\n", util.ColorInfo(pod.Name), util.ColorInfo(containerName))
for {
time.Sleep(time.Second)
p, err := kubeClient.CoreV1().Pods(ns).Get(pod.Name, metav1.GetOptions{})
if err != nil {
return p, errors.Wrapf(err, "failed to load pod %s", pod.Name)
}
if kube.HasInitContainerStarted(p, idx) {
return p, nil
}
}
}
func (o *GetBuildLogsOptions) getPodLog(ns string, pod *corev1.Pod, container corev1.Container) error {
log.Infof("getting the log for pod %s and init container %s\n", util.ColorInfo(pod.Name), util.ColorInfo(container.Name))
return o.tailLogs(ns, pod.Name, container.Name)
}
func (o *GetBuildLogsOptions) loadPipelines(kubeClient kubernetes.Interface, ns string) ([]string, string, map[string]*builds.BuildPodInfo, map[string]*builds.BuildPodInfo, error) {
defaultName := ""
names := []string{}
buildMap := map[string]*builds.BuildPodInfo{}
pipelineMap := map[string]*builds.BuildPodInfo{}
pods, err := builds.GetBuildPods(kubeClient, ns)
if err != nil {
log.Warnf("Failed to query pods %s\n", err)
return names, defaultName, buildMap, pipelineMap, err
}
buildInfos := []*builds.BuildPodInfo{}
for _, pod := range pods {
initContainers := pod.Spec.InitContainers
if len(initContainers) > 0 {
buildInfo := builds.CreateBuildPodInfo(pod)
if o.BuildFilter.BuildMatches(buildInfo) {
buildInfos = append(buildInfos, buildInfo)
}
}
}
builds.SortBuildPodInfos(buildInfos)
if len(buildInfos) == 0 {
return names, defaultName, buildMap, pipelineMap, fmt.Errorf("no knative builds have been triggered which match the current filter")
}
for _, build := range buildInfos {
name := build.Pipeline + " #" + build.Build
names = append(names, name)
buildMap[name] = build
pipelineMap[build.Pipeline] = build
if build.Branch == "master" {
defaultName = name
}
}
return names, defaultName, buildMap, pipelineMap, nil
}