client/pkg/kn/commands/configuration_edit_flags.go

108 lines
3.3 KiB
Go

// Copyright © 2018 The Knative Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package commands
import (
"fmt"
"strings"
servinglib "github.com/knative/client/pkg/serving"
servingv1alpha1 "github.com/knative/serving/pkg/apis/serving/v1alpha1"
"github.com/spf13/cobra"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
)
type ConfigurationEditFlags struct {
Image string
Env []string
RequestsFlags, LimitsFlags ResourceFlags
}
type ResourceFlags struct {
CPU string
Memory string
}
func (p *ConfigurationEditFlags) AddFlags(command *cobra.Command) {
command.Flags().StringVar(&p.Image, "image", "", "Image to run.")
command.Flags().StringArrayVarP(&p.Env, "env", "e", []string{},
"Environment variable to set. NAME=value; you may provide this flag "+
"any number of times to set multiple environment variables.")
command.Flags().StringVar(&p.RequestsFlags.CPU, "requests-cpu", "", "The requested CPU (e.g., 250m).")
command.Flags().StringVar(&p.RequestsFlags.Memory, "requests-memory", "", "The requested CPU (e.g., 64Mi).")
command.Flags().StringVar(&p.LimitsFlags.CPU, "limits-cpu", "", "The limits on the requested CPU (e.g., 1000m).")
command.Flags().StringVar(&p.LimitsFlags.Memory, "limits-memory", "", "The limits on the requested CPU (e.g., 1024Mi).")
command.MarkFlagRequired("image")
}
func (p *ConfigurationEditFlags) Apply(config *servingv1alpha1.ConfigurationSpec) error {
envMap := map[string]string{}
for _, pairStr := range p.Env {
pairSlice := strings.SplitN(pairStr, "=", 2)
if len(pairSlice) <= 1 {
return fmt.Errorf(
"--env argument requires a value that contains the '=' character; got %s",
pairStr)
}
envMap[pairSlice[0]] = pairSlice[1]
}
err := servinglib.UpdateEnvVars(config, envMap)
if err != nil {
return err
}
err = servinglib.UpdateImage(config, p.Image)
if err != nil {
return err
}
limitsResources, err := p.computeResources(p.LimitsFlags)
if err != nil {
return err
}
requestsResources, err := p.computeResources(p.RequestsFlags)
if err != nil {
return err
}
err = servinglib.UpdateResources(config, requestsResources, limitsResources)
if err != nil {
return err
}
return nil
}
func (p *ConfigurationEditFlags) computeResources(resourceFlags ResourceFlags) (corev1.ResourceList, error) {
resourceList := corev1.ResourceList{}
if resourceFlags.CPU != "" {
cpuQuantity, err := resource.ParseQuantity(resourceFlags.CPU)
if err != nil {
return corev1.ResourceList{}, err
}
resourceList[corev1.ResourceCPU] = cpuQuantity
}
if resourceFlags.Memory != "" {
memoryQuantity, err := resource.ParseQuantity(resourceFlags.Memory)
if err != nil {
return corev1.ResourceList{}, err
}
resourceList[corev1.ResourceMemory] = memoryQuantity
}
return resourceList, nil
}