mirror of https://github.com/knative/client.git
73 lines
2.2 KiB
Go
73 lines
2.2 KiB
Go
// Copyright © 2020 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 flags
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import (
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"fmt"
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"strings"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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)
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// ResourceOptions to hold the container resource requirements values
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type ResourceOptions struct {
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Requests string
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Limits string
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ResourceRequirements corev1.ResourceRequirements
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}
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// Validate parses the limits and requests parameters if specified and
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// sets ResourceRequirements for ResourceOptions or returns error if any
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func (o *ResourceOptions) Validate() (err error) {
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limits, err := populateResourceListV1(o.Limits)
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if err != nil {
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return err
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}
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o.ResourceRequirements.Limits = limits
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requests, err := populateResourceListV1(o.Requests)
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if err != nil {
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return err
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}
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o.ResourceRequirements.Requests = requests
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return nil
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}
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// populateResourceListV1 takes strings of form <resourceName1>=<value1>,<resourceName1>=<value2>
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// and returns ResourceList.
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func populateResourceListV1(spec string) (corev1.ResourceList, error) {
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// empty input gets a nil response to preserve generator test expected behaviors
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if spec == "" {
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return nil, nil
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}
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result := corev1.ResourceList{}
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resourceStatements := strings.Split(spec, ",")
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for _, resourceStatement := range resourceStatements {
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parts := strings.Split(resourceStatement, "=")
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if len(parts) != 2 {
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return nil, fmt.Errorf("invalid argument syntax %v, expected <resource>=<value>", resourceStatement)
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}
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resourceName := corev1.ResourceName(parts[0])
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resourceQuantity, err := resource.ParseQuantity(parts[1])
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if err != nil {
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return nil, err
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}
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result[resourceName] = resourceQuantity
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}
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return result, nil
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}
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