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pod_info.go
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pod_info.go
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package info
import (
"fmt"
"sort"
"strings"
"github.com/argoproj/argo-rollouts/pkg/apiclient/rollout"
corev1 "k8s.io/api/core/v1"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
k8snode "k8s.io/kubernetes/pkg/util/node"
)
func addPodInfos(rsInfos []*rollout.ReplicaSetInfo, allPods []*corev1.Pod) []*rollout.ReplicaSetInfo {
var uids []types.UID
uidToRSInfoIdx := make(map[types.UID]int)
for i, rsInfo := range rsInfos {
uids = append(uids, rsInfo.ObjectMeta.UID)
uidToRSInfoIdx[rsInfo.ObjectMeta.UID] = i
}
for _, pod := range allPods {
owner := ownerRef(pod.OwnerReferences, uids)
if owner == nil {
continue
}
podInfo := newPodInfo(pod)
idx := uidToRSInfoIdx[owner.UID]
rsInfos[idx].Pods = append(rsInfos[idx].Pods, &podInfo)
}
for _, rsInfo := range rsInfos {
sort.Slice(rsInfo.Pods[:], func(i, j int) bool {
if rsInfo.Pods[i].ObjectMeta.CreationTimestamp != rsInfo.Pods[j].ObjectMeta.CreationTimestamp {
return rsInfo.Pods[i].ObjectMeta.CreationTimestamp.Before(&rsInfo.Pods[j].ObjectMeta.CreationTimestamp)
}
return rsInfo.Pods[i].ObjectMeta.Name < rsInfo.Pods[j].ObjectMeta.Name
})
}
return rsInfos
}
func newPodInfo(pod *corev1.Pod) rollout.PodInfo {
podInfo := rollout.PodInfo{
ObjectMeta: &v1.ObjectMeta{
Name: pod.Name,
Namespace: pod.Namespace,
CreationTimestamp: pod.CreationTimestamp,
UID: pod.UID,
},
}
restarts := 0
totalContainers := len(pod.Spec.Containers)
readyContainers := 0
reason := string(pod.Status.Phase)
if pod.Status.Reason != "" {
reason = pod.Status.Reason
}
initializing := false
for i, container := range pod.Status.InitContainerStatuses {
restarts += int(container.RestartCount)
switch {
case container.State.Terminated != nil && container.State.Terminated.ExitCode == 0:
continue
case container.State.Terminated != nil:
// initialization is failed
if len(container.State.Terminated.Reason) == 0 {
if container.State.Terminated.Signal != 0 {
reason = fmt.Sprintf("Init:Signal:%d", container.State.Terminated.Signal)
} else {
reason = fmt.Sprintf("Init:ExitCode:%d", container.State.Terminated.ExitCode)
}
} else {
reason = "Init:" + container.State.Terminated.Reason
}
initializing = true
case container.State.Waiting != nil && len(container.State.Waiting.Reason) > 0 && container.State.Waiting.Reason != "PodInitializing":
reason = "Init:" + container.State.Waiting.Reason
initializing = true
default:
reason = fmt.Sprintf("Init:%d/%d", i, len(pod.Spec.InitContainers))
initializing = true
}
break
}
if !initializing {
restarts = 0
hasRunning := false
for i := len(pod.Status.ContainerStatuses) - 1; i >= 0; i-- {
container := pod.Status.ContainerStatuses[i]
restarts += int(container.RestartCount)
if container.State.Waiting != nil && container.State.Waiting.Reason != "" {
reason = container.State.Waiting.Reason
} else if container.State.Terminated != nil && container.State.Terminated.Reason != "" {
reason = container.State.Terminated.Reason
} else if container.State.Terminated != nil && container.State.Terminated.Reason == "" {
if container.State.Terminated.Signal != 0 {
reason = fmt.Sprintf("Signal:%d", container.State.Terminated.Signal)
} else {
reason = fmt.Sprintf("ExitCode:%d", container.State.Terminated.ExitCode)
}
} else if container.Ready && container.State.Running != nil {
hasRunning = true
readyContainers++
}
}
// change pod status back to "Running" if there is at least one container still reporting as "Running" status
if reason == "Completed" && hasRunning {
reason = "Running"
}
}
if pod.DeletionTimestamp != nil && pod.Status.Reason == k8snode.NodeUnreachablePodReason {
reason = "Unknown"
} else if pod.DeletionTimestamp != nil {
reason = "Terminating"
}
podInfo.Status = reason
podInfo.Icon = podIcon(podInfo.Status)
podInfo.Ready = fmt.Sprintf("%d/%d", readyContainers, totalContainers)
podInfo.Restarts = int32(restarts)
return podInfo
}
func podIcon(status string) string {
if strings.HasPrefix(status, "Init:") {
return IconProgressing
}
if strings.HasPrefix(status, "Signal:") || strings.HasPrefix(status, "ExitCode:") {
return IconBad
}
// See:
// https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/images/types.go
// https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/kuberuntime/kuberuntime_container.go
// https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/container/sync_result.go
if strings.HasSuffix(status, "Error") || strings.HasPrefix(status, "Err") {
return IconWarning
}
switch status {
case "Pending", "Terminating", "ContainerCreating":
return IconProgressing
case "Running", "Completed":
return IconOK
case "Failed", "InvalidImageName", "CrashLoopBackOff":
return IconBad
case "ImagePullBackOff", "RegistryUnavailable":
return IconWarning
case "Unknown":
return IconUnknown
}
return " "
}