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sync_hooks.go
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sync_hooks.go
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package controller
import (
"fmt"
"github.com/argoproj/argo-cd/util/health"
apiv1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/kubernetes/pkg/apis/batch"
"github.com/argoproj/argo-cd/pkg/apis/application/v1alpha1"
)
// getOperationPhase returns a hook status from an _live_ unstructured object
func getOperationPhase(hook *unstructured.Unstructured) (operation v1alpha1.OperationPhase, message string) {
gvk := hook.GroupVersionKind()
if isBatchJob(gvk) {
return getStatusFromBatchJob(hook)
} else if isArgoWorkflow(gvk) {
return health.GetStatusFromArgoWorkflow(hook)
} else if isPod(gvk) {
return getStatusFromPod(hook)
} else {
return v1alpha1.OperationSucceeded, fmt.Sprintf("%s created", hook.GetName())
}
}
// isRunnable returns if the resource object is a runnable type which needs to be terminated
func isRunnable(gvk schema.GroupVersionKind) bool {
return isBatchJob(gvk) || isArgoWorkflow(gvk) || isPod(gvk)
}
func isBatchJob(gvk schema.GroupVersionKind) bool {
return gvk.Group == "batch" && gvk.Kind == "Job"
}
// TODO this is a copy-and-paste of health.getJobHealth(), refactor out?
func getStatusFromBatchJob(hook *unstructured.Unstructured) (operation v1alpha1.OperationPhase, message string) {
var job batch.Job
err := runtime.DefaultUnstructuredConverter.FromUnstructured(hook.Object, &job)
if err != nil {
return v1alpha1.OperationError, err.Error()
}
failed := false
var failMsg string
complete := false
for _, condition := range job.Status.Conditions {
switch condition.Type {
case batch.JobFailed:
failed = true
complete = true
failMsg = condition.Message
case batch.JobComplete:
complete = true
message = condition.Message
}
}
if !complete {
return v1alpha1.OperationRunning, message
} else if failed {
return v1alpha1.OperationFailed, failMsg
} else {
return v1alpha1.OperationSucceeded, message
}
}
func isArgoWorkflow(gvk schema.GroupVersionKind) bool {
return gvk.Group == "argoproj.io" && gvk.Kind == "Workflow"
}
func isPod(gvk schema.GroupVersionKind) bool {
return gvk.Group == "" && gvk.Kind == "Pod"
}
// TODO - this is very similar to health.getPodHealth() should we use that instead?
func getStatusFromPod(hook *unstructured.Unstructured) (v1alpha1.OperationPhase, string) {
var pod apiv1.Pod
err := runtime.DefaultUnstructuredConverter.FromUnstructured(hook.Object, &pod)
if err != nil {
return v1alpha1.OperationError, err.Error()
}
getFailMessage := func(ctr *apiv1.ContainerStatus) string {
if ctr.State.Terminated != nil {
if ctr.State.Terminated.Message != "" {
return ctr.State.Terminated.Message
}
if ctr.State.Terminated.Reason == "OOMKilled" {
return ctr.State.Terminated.Reason
}
if ctr.State.Terminated.ExitCode != 0 {
return fmt.Sprintf("container %q failed with exit code %d", ctr.Name, ctr.State.Terminated.ExitCode)
}
}
return ""
}
switch pod.Status.Phase {
case apiv1.PodPending, apiv1.PodRunning:
return v1alpha1.OperationRunning, ""
case apiv1.PodSucceeded:
return v1alpha1.OperationSucceeded, ""
case apiv1.PodFailed:
if pod.Status.Message != "" {
// Pod has a nice error message. Use that.
return v1alpha1.OperationFailed, pod.Status.Message
}
for _, ctr := range append(pod.Status.InitContainerStatuses, pod.Status.ContainerStatuses...) {
if msg := getFailMessage(&ctr); msg != "" {
return v1alpha1.OperationFailed, msg
}
}
return v1alpha1.OperationFailed, ""
case apiv1.PodUnknown:
return v1alpha1.OperationError, ""
}
return v1alpha1.OperationRunning, ""
}