5a6acf85fa
Align the behavior of HTTP-based lifecycle handlers and HTTP-based probers, converging on the probers implementation. This fixes multiple deficiencies in the current implementation of lifecycle handlers surrounding what functionality is available. The functionality is gated by the features.ConsistentHTTPGetHandlers feature gate.
58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
/*
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Copyright 2022 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package probe
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import (
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"fmt"
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"strconv"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/util/intstr"
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)
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func ResolveContainerPort(param intstr.IntOrString, container *v1.Container) (int, error) {
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port := -1
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var err error
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switch param.Type {
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case intstr.Int:
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port = param.IntValue()
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case intstr.String:
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if port, err = findPortByName(container, param.StrVal); err != nil {
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// Last ditch effort - maybe it was an int stored as string?
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if port, err = strconv.Atoi(param.StrVal); err != nil {
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return port, err
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}
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}
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default:
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return port, fmt.Errorf("intOrString had no kind: %+v", param)
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}
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if port > 0 && port < 65536 {
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return port, nil
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}
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return port, fmt.Errorf("invalid port number: %v", port)
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}
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// findPortByName is a helper function to look up a port in a container by name.
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func findPortByName(container *v1.Container, portName string) (int, error) {
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for _, port := range container.Ports {
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if port.Name == portName {
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return int(port.ContainerPort), nil
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}
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}
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return 0, fmt.Errorf("port %s not found", portName)
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}
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