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Create helpers for iterating containers in a pod

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This commit is contained in:
Lee Verberne
2019-06-14 15:20:16 +00:00
parent 4683054ff6
commit ee821e2a04
15 changed files with 467 additions and 271 deletions
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18
pkg/apis/core/pods/helpers.go
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@@ -19,9 +19,27 @@ package pods
import (
"fmt"
"k8s.io/apimachinery/pkg/util/validation/field"
api "k8s.io/kubernetes/pkg/apis/core"
"k8s.io/kubernetes/pkg/fieldpath"
)
// ContainerVisitorWithPath is called with each container and the field.Path to that container
type ContainerVisitorWithPath func(container *api.Container, path *field.Path)
// VisitContainersWithPath invokes the visitor function with a pointer to the spec
// of every container in the given pod spec and the field.Path to that container.
func VisitContainersWithPath(podSpec *api.PodSpec, visitor ContainerVisitorWithPath) {
path := field.NewPath("spec", "initContainers")
for i := range podSpec.InitContainers {
visitor(&podSpec.InitContainers[i], path.Index(i))
}
path = field.NewPath("spec", "containers")
for i := range podSpec.Containers {
visitor(&podSpec.Containers[i], path.Index(i))
}
}
// ConvertDownwardAPIFieldLabel converts the specified downward API field label
// and its value in the pod of the specified version to the internal version,
// and returns the converted label and value. This function returns an error if