mirror of https://github.com/knative/client.git
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
// Copyright © 2019 The Knative Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package serving
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import (
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"fmt"
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"strconv"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"knative.dev/serving/pkg/apis/autoscaling"
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servingv1 "knative.dev/serving/pkg/apis/serving/v1"
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)
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type Scaling struct {
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Min *int
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Max *int
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}
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func ContainerOfRevisionTemplate(template *servingv1.RevisionTemplateSpec) (*corev1.Container, error) {
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return ContainerOfRevisionSpec(&template.Spec)
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}
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func ContainerOfRevisionSpec(revisionSpec *servingv1.RevisionSpec) (*corev1.Container, error) {
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if len(revisionSpec.Containers) == 0 {
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return nil, fmt.Errorf("internal: no container set in spec.template.spec.containers")
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}
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return &revisionSpec.Containers[0], nil
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}
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func ScalingInfo(m *metav1.ObjectMeta) (*Scaling, error) {
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ret := &Scaling{}
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var err error
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ret.Min, err = annotationAsInt(m, autoscaling.MinScaleAnnotationKey)
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if err != nil {
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return nil, err
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}
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ret.Max, err = annotationAsInt(m, autoscaling.MaxScaleAnnotationKey)
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if err != nil {
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return nil, err
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}
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return ret, nil
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}
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func UserImage(m *metav1.ObjectMeta) string {
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return m.Annotations[UserImageAnnotationKey]
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}
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func ConcurrencyTarget(m *metav1.ObjectMeta) *int {
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ret, _ := annotationAsInt(m, autoscaling.TargetAnnotationKey)
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return ret
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}
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func ConcurrencyTargetUtilization(m *metav1.ObjectMeta) *int {
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ret, _ := annotationAsInt(m, autoscaling.TargetUtilizationPercentageKey)
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return ret
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}
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func AutoscaleWindow(m *metav1.ObjectMeta) string {
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return m.Annotations[autoscaling.WindowAnnotationKey]
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}
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func Port(revisionSpec *servingv1.RevisionSpec) *int32 {
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c, err := ContainerOfRevisionSpec(revisionSpec)
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if err != nil {
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return nil
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}
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if len(c.Ports) > 0 {
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p := c.Ports[0].ContainerPort
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return &p
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}
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return nil
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}
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// =======================================================================================
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func annotationAsInt(m *metav1.ObjectMeta, annotationKey string) (*int, error) {
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annos := m.Annotations
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if val, ok := annos[annotationKey]; ok {
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valInt, err := strconv.Atoi(val)
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if err != nil {
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return nil, err
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}
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return &valInt, nil
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}
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return nil, nil
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}
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