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container_posthook_module.go
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container_posthook_module.go
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package pods
import (
"strings"
"time"
"github.com/alipay/container-observability-service/pkg/reason/modules"
"github.com/alipay/container-observability-service/pkg/reason/share"
"github.com/alipay/container-observability-service/pkg/reason/utils"
"github.com/alipay/container-observability-service/pkg/shares"
utils2 "github.com/alipay/container-observability-service/pkg/utils"
v1 "k8s.io/api/core/v1"
)
func init() {
modules.ShareModuleFactory.Register(share.CONTAINER_POST_START, func() modules.DeliveryModule {
return modules.NewDAGDeliveryModule(share.CONTAINER_POST_START, ContainerPostHookReason)
})
}
func ContainerPostHookReason(auditEvents []*shares.AuditEvent, beginTime *time.Time, endTime *time.Time) (result string, hasError bool) {
pod := utils.GetPodYamlFromHyperEvents(auditEvents, endTime)
if pod == nil {
return "", false
}
defer utils2.IgnorePanic("analyze_post_hook ")
//init容器
for _, c := range pod.Spec.InitContainers {
cs := utils.GetContainerStatus(c.Name, pod)
if cs != nil && cs.Ready == true {
continue
}
rs, hasError := analysisPostHookStart(&c, cs, auditEvents, beginTime, endTime)
if hasError && rs != "" {
return rs, hasError
}
}
for _, c := range pod.Spec.Containers {
cs := utils.GetContainerStatus(c.Name, pod)
if cs != nil && cs.Ready == true {
continue
}
rs, hasError := analysisPostHookStart(&c, cs, auditEvents, beginTime, endTime)
if hasError && rs != "" {
return rs, hasError
}
}
return "", false
}
func analysisPostHookStart(c *v1.Container, cs *v1.ContainerStatus, auditEvents []*shares.AuditEvent, beginTime *time.Time, endTime *time.Time) (string, bool) {
hasPostStartHook := false
if c.Lifecycle != nil && c.Lifecycle.PostStart != nil {
hasPostStartHook = true
}
if !hasPostStartHook {
return "", false
}
if cs != nil && cs.State.Waiting != nil && strings.Contains(cs.State.Waiting.Reason, "PostStartHookError") {
return "FailedPostStartHook", false
}
eventLen := len(auditEvents)
for idx := eventLen - 1; idx >= 0; idx-- {
hyEvent := auditEvents[idx]
if endTime != nil && hyEvent.Event.StageTimestamp.After(*endTime) {
continue
}
reason := ""
if hyEvent.Reason != "" {
reason = hyEvent.Reason
}
msg := ""
ev, ok := hyEvent.ResponseRuntimeObj.(*v1.Event)
if ok && ev != nil {
msg = ev.Message
}
if cs != nil && cs.Started != nil && *cs.Started == true && (*cs).State.Running.StartedAt.After(*beginTime) {
return "", false
}
if reason == "WithOutPostStartHook" && strings.Contains(msg, c.Name) {
return "", false
}
if reason == "SucceedPostStartHook" && strings.Contains(msg, c.Name) {
return "", false
}
if reason == "FailedPostStartHook" && strings.Contains(msg, c.Name) {
return "FailedPostStartHook", false
}
}
return "", false
}