mirror of
https://github.com/kubevela/kubevela.git
synced 2026-02-14 18:10:21 +00:00
95b3b31b11
Signed-off-by: FogDong <dongtianxin.tx@alibaba-inc.com> Signed-off-by: FogDong <dongtianxin.tx@alibaba-inc.com>
482 lines
13 KiB
Go
482 lines
13 KiB
Go
/*
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Copyright 2021 The KubeVela 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 cli
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import (
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"context"
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"fmt"
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"strings"
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"cuelang.org/go/cue"
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"github.com/AlecAivazis/survey/v2"
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"github.com/FogDong/uitable"
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"github.com/fatih/color"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/yaml"
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workflowv1alpha1 "github.com/kubevela/workflow/api/v1alpha1"
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"github.com/kubevela/workflow/pkg/cue/model/sets"
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"github.com/kubevela/workflow/pkg/cue/model/value"
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"github.com/kubevela/workflow/pkg/cue/packages"
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"github.com/kubevela/workflow/pkg/debug"
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"github.com/kubevela/workflow/pkg/tasks/custom"
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"github.com/oam-dev/kubevela/apis/core.oam.dev/v1beta1"
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"github.com/oam-dev/kubevela/apis/types"
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"github.com/oam-dev/kubevela/pkg/appfile/dryrun"
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"github.com/oam-dev/kubevela/pkg/oam"
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"github.com/oam-dev/kubevela/pkg/oam/discoverymapper"
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"github.com/oam-dev/kubevela/pkg/utils/common"
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cmdutil "github.com/oam-dev/kubevela/pkg/utils/util"
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"github.com/oam-dev/kubevela/references/appfile"
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)
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type debugOpts struct {
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step string
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focus string
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errMsg string
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// TODO: (fog) add watch flag
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// watch bool
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}
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// NewDebugCommand create `debug` command
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func NewDebugCommand(c common.Args, ioStreams cmdutil.IOStreams) *cobra.Command {
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ctx := context.Background()
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dOpts := &debugOpts{}
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cmd := &cobra.Command{
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Use: "debug",
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Aliases: []string{"debug"},
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Short: "Debug running application",
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Long: "Debug running application with debug policy.",
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Example: `vela debug <application-name>`,
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RunE: func(cmd *cobra.Command, args []string) error {
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if len(args) < 1 {
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return fmt.Errorf("must specify application name")
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}
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namespace, err := GetFlagNamespaceOrEnv(cmd, c)
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if err != nil {
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return err
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}
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app, err := appfile.LoadApplication(namespace, args[0], c)
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if err != nil {
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return err
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}
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return dOpts.debugApplication(ctx, c, app, ioStreams)
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},
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}
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addNamespaceAndEnvArg(cmd)
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cmd.Flags().StringVarP(&dOpts.step, "step", "s", "", "specify the step or component to debug")
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cmd.Flags().StringVarP(&dOpts.focus, "focus", "f", "", "specify the focus value to debug, only valid for application with workflow")
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return cmd
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}
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func (d *debugOpts) debugApplication(ctx context.Context, c common.Args, app *v1beta1.Application, ioStreams cmdutil.IOStreams) error {
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cli, err := c.GetClient()
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if err != nil {
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return err
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}
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config, err := c.GetConfig()
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if err != nil {
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return err
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}
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pd, err := c.GetPackageDiscover()
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if err != nil {
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return err
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}
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s, opts, errMap := d.getDebugOptions(app)
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if s == "workflow steps" {
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if d.step == "" {
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prompt := &survey.Select{
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Message: fmt.Sprintf("Select the %s to debug:", s),
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Options: opts,
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}
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var step string
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err := survey.AskOne(prompt, &step, survey.WithValidator(survey.Required))
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if err != nil {
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return fmt.Errorf("failed to select %s: %w", s, err)
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}
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d.step = unwrapStepName(step)
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d.errMsg = errMap[d.step]
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}
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// debug workflow steps
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rawValue, data, err := d.getDebugRawValue(ctx, cli, pd, app)
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if err != nil {
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if data != "" {
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ioStreams.Info(color.RedString("%s%s", emojiFail, err.Error()))
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ioStreams.Info(color.GreenString("Original Data in Debug:\n"), data)
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return nil
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}
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return err
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}
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if err := d.handleCueSteps(rawValue, ioStreams); err != nil {
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ioStreams.Info(color.RedString("%s%s", emojiFail, err.Error()))
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ioStreams.Info(color.GreenString("Original Data in Debug:\n"), data)
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return nil
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}
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} else {
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// dry run components
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dm, err := discoverymapper.New(config)
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if err != nil {
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return err
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}
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dryRunOpt := dryrun.NewDryRunOption(cli, config, dm, pd, []oam.Object{}, false)
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comps, _, err := dryRunOpt.ExecuteDryRun(ctx, app)
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if err != nil {
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ioStreams.Info(color.RedString("%s%s", emojiFail, err.Error()))
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return nil
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}
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if err := d.debugComponents(opts, comps, ioStreams); err != nil {
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return err
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}
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}
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return nil
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}
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func (d *debugOpts) debugComponents(compList []string, comps []*types.ComponentManifest, ioStreams cmdutil.IOStreams) error {
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opts := compList
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all := color.YellowString("all fields")
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exit := color.CyanString("exit debug mode")
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opts = append(opts, all, exit)
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var components = make(map[string]*unstructured.Unstructured)
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var traits = make(map[string][]*unstructured.Unstructured)
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for _, comp := range comps {
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components[comp.Name] = comp.StandardWorkload
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traits[comp.Name] = comp.Traits
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}
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if d.step != "" {
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return renderComponents(d.step, components[d.step], traits[d.step], ioStreams)
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}
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for {
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prompt := &survey.Select{
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Message: "Select the components to debug:",
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Options: opts,
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}
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var step string
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err := survey.AskOne(prompt, &step, survey.WithValidator(survey.Required))
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if err != nil {
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return fmt.Errorf("failed to select components: %w", err)
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}
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if step == exit {
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break
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}
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if step == all {
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for _, step := range compList {
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step = unwrapStepName(step)
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if err := renderComponents(step, components[step], traits[step], ioStreams); err != nil {
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return err
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}
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}
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continue
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}
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step = unwrapStepName(step)
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if err := renderComponents(step, components[step], traits[step], ioStreams); err != nil {
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return err
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}
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}
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return nil
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}
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func renderComponents(compName string, comp *unstructured.Unstructured, traits []*unstructured.Unstructured, ioStreams cmdutil.IOStreams) error {
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ioStreams.Info(color.CyanString("\n▫️ %s", compName))
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result, err := yaml.Marshal(comp)
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if err != nil {
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return errors.WithMessage(err, "marshal result for component "+compName+" object in yaml format")
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}
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ioStreams.Info(string(result), "\n")
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for _, t := range traits {
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result, err := yaml.Marshal(t)
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if err != nil {
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return errors.WithMessage(err, "marshal result for component "+compName+" object in yaml format")
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}
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ioStreams.Info(string(result), "\n")
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}
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return nil
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}
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func (d *debugOpts) getDebugOptions(app *v1beta1.Application) (string, []string, map[string]string) {
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s := "components"
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stepList := make([]string, 0)
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if app.Spec.Workflow != nil && len(app.Spec.Workflow.Steps) > 0 {
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s = "workflow steps"
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}
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errMap := make(map[string]string)
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switch {
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case app.Status.Workflow != nil:
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for _, step := range app.Status.Workflow.Steps {
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stepName := wrapStepName(step.StepStatus)
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if strings.HasPrefix(stepName, emojiFail) {
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errMap[step.Name] = step.Message
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}
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stepList = append(stepList, stepName)
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}
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case app.Spec.Workflow != nil && len(app.Spec.Workflow.Steps) > 0:
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for _, step := range app.Spec.Workflow.Steps {
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stepList = append(stepList, step.Name)
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}
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default:
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for _, c := range app.Spec.Components {
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stepList = append(stepList, c.Name)
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}
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}
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return s, stepList, errMap
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}
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func wrapStepName(step workflowv1alpha1.StepStatus) string {
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var stepName string
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switch step.Phase {
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case workflowv1alpha1.WorkflowStepPhaseSucceeded:
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stepName = emojiSucceed + step.Name
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case workflowv1alpha1.WorkflowStepPhaseFailed:
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stepName = emojiFail + step.Name
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case workflowv1alpha1.WorkflowStepPhaseSkipped:
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stepName = emojiSkip + step.Name
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default:
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stepName = emojiExecuting + step.Name
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}
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return stepName
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}
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func unwrapStepName(step string) string {
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switch {
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case strings.HasPrefix(step, emojiSucceed):
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return strings.TrimPrefix(step, emojiSucceed)
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case strings.HasPrefix(step, emojiFail):
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return strings.TrimPrefix(step, emojiFail)
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case strings.HasPrefix(step, emojiSkip):
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return strings.TrimPrefix(step, emojiSkip)
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case strings.HasPrefix(step, emojiExecuting):
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return strings.TrimPrefix(step, emojiExecuting)
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default:
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return step
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}
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}
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func (d *debugOpts) getDebugRawValue(ctx context.Context, cli client.Client, pd *packages.PackageDiscover, app *v1beta1.Application) (*value.Value, string, error) {
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debugCM := &corev1.ConfigMap{}
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if err := cli.Get(ctx, client.ObjectKey{Name: debug.GenerateContextName(app.Name, d.step), Namespace: app.Namespace}, debugCM); err != nil {
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return nil, "", fmt.Errorf("failed to get debug configmap, please make sure your application have the debug policy, you can add the debug policy by using `vela up -f <app.yaml> --debug`: %w", err)
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}
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if debugCM.Data == nil || debugCM.Data["debug"] == "" {
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return nil, "", fmt.Errorf("debug configmap is empty")
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}
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v, err := value.NewValue(debugCM.Data["debug"], pd, "")
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if err != nil {
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return nil, debugCM.Data["debug"], fmt.Errorf("failed to parse debug configmap: %w", err)
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}
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return v, debugCM.Data["debug"], nil
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}
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func (d *debugOpts) handleCueSteps(v *value.Value, ioStreams cmdutil.IOStreams) error {
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if d.focus != "" {
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f, err := v.LookupValue(strings.Split(d.focus, ".")...)
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if err != nil {
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return err
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}
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ioStreams.Info(color.New(color.FgCyan).Sprint("\n", d.focus, "\n"))
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rendered, err := renderFields(f, &renderOptions{})
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if err != nil {
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return err
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}
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ioStreams.Info(rendered, "\n")
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return nil
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}
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if err := d.separateBySteps(v, ioStreams); err != nil {
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return err
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}
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return nil
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}
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func (d *debugOpts) separateBySteps(v *value.Value, ioStreams cmdutil.IOStreams) error {
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fieldMap := make(map[string]*value.Value)
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fieldList := make([]string, 0)
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if err := v.StepByFields(func(fieldName string, in *value.Value) (bool, error) {
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if in.CueValue().IncompleteKind() == cue.BottomKind {
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errInfo, err := sets.ToString(in.CueValue())
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if err != nil {
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errInfo = "value is _|_"
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}
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return true, errors.New(errInfo + "value is _|_ (bottom kind)")
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}
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fieldList = append(fieldList, fieldName)
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fieldMap[fieldName] = in
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return false, nil
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}); err != nil {
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return fmt.Errorf("failed to parse debug configmap by field: %w", err)
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}
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errStep := ""
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if d.errMsg != "" {
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s := strings.Split(d.errMsg, ":")
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errStep = strings.TrimPrefix(s[0], "step ")
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}
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opts := make([]string, 0)
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for _, field := range fieldList {
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if field == errStep {
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opts = append(opts, emojiFail+field)
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} else {
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opts = append(opts, emojiSucceed+field)
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}
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}
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all := color.YellowString("all fields")
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exit := color.CyanString("exit debug mode")
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opts = append(opts, all, exit)
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for {
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prompt := &survey.Select{
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Message: "Select the field to debug: ",
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Options: opts,
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}
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var field string
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err := survey.AskOne(prompt, &field, survey.WithValidator(survey.Required))
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if err != nil {
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return fmt.Errorf("failed to select: %w", err)
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}
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if field == exit {
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break
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}
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if field == all {
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for _, field := range fieldList {
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ioStreams.Info(color.CyanString("\n▫️ %s", field))
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rendered, err := renderFields(fieldMap[field], &renderOptions{})
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if err != nil {
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return err
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}
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ioStreams.Info(rendered, "\n")
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}
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continue
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}
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field = unwrapStepName(field)
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ioStreams.Info(color.CyanString("\n▫️ %s", field))
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rendered, err := renderFields(fieldMap[field], &renderOptions{})
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if err != nil {
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return err
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}
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ioStreams.Info(rendered, "\n")
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}
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return nil
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}
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type renderOptions struct {
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hideIndex bool
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filterFields []string
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}
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func renderFields(v *value.Value, opt *renderOptions) (string, error) {
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table := uitable.New()
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table.MaxColWidth = 200
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table.Wrap = true
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i := 0
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if err := v.StepByFields(func(fieldName string, in *value.Value) (bool, error) {
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key := ""
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if custom.OpTpy(in) != "" {
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rendered, err := renderFields(in, opt)
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if err != nil {
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return false, err
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}
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i++
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if !opt.hideIndex {
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key += fmt.Sprintf("%v.", i)
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}
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key += fieldName
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if !strings.Contains(fieldName, "#") {
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if err := v.FillObject(in, fieldName); err != nil {
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renderValuesInRow(table, key, rendered, false)
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return false, err
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}
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}
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if len(opt.filterFields) > 0 {
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for _, filter := range opt.filterFields {
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if filter != fieldName {
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renderValuesInRow(table, key, rendered, true)
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}
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}
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} else {
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renderValuesInRow(table, key, rendered, true)
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}
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return false, nil
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}
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vStr, err := in.String()
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if err != nil {
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return false, err
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}
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i++
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if !opt.hideIndex {
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key += fmt.Sprintf("%v.", i)
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}
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key += fieldName
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if !strings.Contains(fieldName, "#") {
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if err := v.FillObject(in, fieldName); err != nil {
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renderValuesInRow(table, key, vStr, false)
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return false, err
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}
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}
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if len(opt.filterFields) > 0 {
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for _, filter := range opt.filterFields {
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if filter != fieldName {
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renderValuesInRow(table, key, vStr, true)
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}
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}
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} else {
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renderValuesInRow(table, key, vStr, true)
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}
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return false, nil
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}); err != nil {
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vStr, serr := v.String()
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if serr != nil {
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return "", serr
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}
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if strings.Contains(err.Error(), "(type string) as struct") {
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return strings.TrimSpace(vStr), nil
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}
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}
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return table.String(), nil
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}
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func renderValuesInRow(table *uitable.Table, k, v string, isPass bool) {
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v = strings.TrimSpace(v)
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if isPass {
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if strings.Contains(k, "#do") || strings.Contains(k, "#provider") {
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k = color.YellowString("%s:", k)
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} else {
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k = color.GreenString("%s:", k)
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}
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} else {
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k = color.RedString("%s:", k)
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v = color.RedString("%s%s", emojiFail, v)
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}
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if v == `"steps"` {
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v = color.BlueString(v)
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}
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table.AddRow(k, v)
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}
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