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* feat: add dettached mode Signed-off-by: Javier López Barba <javier@okteto.com> * fix: tests Signed-off-by: Javier López Barba <javier@okteto.com> * fix: address comments Signed-off-by: Javier López Barba <javier@okteto.com> * fix: unit tests Signed-off-by: Javier López Barba <javier@okteto.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| // Copyright 2022 The Okteto 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 up | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "os" | ||
| "os/signal" | ||
| "regexp" | ||
| "text/template" | ||
| "time" | ||
|
|
||
| "github.com/fatih/color" | ||
| "github.com/okteto/okteto/pkg/config" | ||
| oktetoErrors "github.com/okteto/okteto/pkg/errors" | ||
| oktetoLog "github.com/okteto/okteto/pkg/log" | ||
| "github.com/okteto/okteto/pkg/okteto" | ||
| "github.com/pkg/errors" | ||
| "github.com/stern/stern/stern" | ||
| "k8s.io/apimachinery/pkg/fields" | ||
| "k8s.io/apimachinery/pkg/labels" | ||
| "k8s.io/client-go/tools/clientcmd" | ||
| ) | ||
|
|
||
| var tempKubeConfigTemplate = "%s/.okteto/kubeconfig-%s" | ||
|
|
||
| func (up *upContext) showDetachedLogs(ctx context.Context) error { | ||
| tmpKubeconfig, err := createTempKubeconfig(up.Manifest.Name) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer os.Remove(tmpKubeconfig) | ||
|
|
||
| c, err := getSternConfig(tmpKubeconfig) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| stop := make(chan os.Signal, 1) | ||
| signal.Notify(stop, os.Interrupt) | ||
| exit := make(chan error, 1) | ||
| go func() { | ||
| if err := stern.Run(ctx, c); err != nil { | ||
| exit <- oktetoErrors.UserError{ | ||
| E: fmt.Errorf("failed to get logs: %w", err), | ||
| } | ||
| } | ||
| }() | ||
| select { | ||
| case <-stop: | ||
| oktetoLog.Infof("CTRL+C received, starting shutdown sequence") | ||
| return oktetoErrors.ErrIntSig | ||
| case err := <-exit: | ||
| if err != nil { | ||
| oktetoLog.Infof("exit signal received due to error: %s", err) | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func createTempKubeconfig(name string) (string, error) { | ||
| cfg := okteto.Context().Cfg | ||
| destKubeconfigFile := fmt.Sprintf(tempKubeConfigTemplate, config.GetUserHomeDir(), name) | ||
| if err := clientcmd.WriteToFile(*cfg, destKubeconfigFile); err != nil { | ||
| oktetoLog.Errorf("could not modify the k8s config: %s", err) | ||
| return "", err | ||
| } | ||
| return destKubeconfigFile, nil | ||
| } | ||
|
|
||
| func getSternConfig(kubeconfigPath string) (*stern.Config, error) { | ||
| labelSelector, err := labels.Parse("detached.dev.okteto.com") | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to parse selector as label selector: %s", err.Error()) | ||
| } | ||
| pod, err := regexp.Compile("") | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to compile regular expression from query: %w", err) | ||
| } | ||
| container, err := regexp.Compile(".*") | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "failed to compile regular expression for container query") | ||
| } | ||
| var tailLines *int64 | ||
|
|
||
| funs := template.FuncMap{ | ||
| "json": func(in interface{}) (string, error) { | ||
| b, err := json.Marshal(in) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| return string(b), nil | ||
| }, | ||
| "parseJSON": func(text string) (map[string]interface{}, error) { | ||
| obj := make(map[string]interface{}) | ||
| if err := json.Unmarshal([]byte(text), &obj); err != nil { | ||
| return obj, err | ||
| } | ||
| return obj, nil | ||
| }, | ||
| "color": func(color color.Color, text string) string { | ||
| return color.SprintFunc()(text) | ||
| }, | ||
| } | ||
| t := "{{color .PodColor .PodName}} {{color .ContainerColor .ContainerName}} {{.Message}}\n" | ||
|
|
||
| tmpl, err := template.New("logs").Funcs(funs).Parse(t) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &stern.Config{ | ||
| KubeConfig: kubeconfigPath, | ||
| ContextName: okteto.UrlToKubernetesContext(okteto.Context().Name), | ||
| Namespaces: []string{okteto.Context().Namespace}, | ||
| PodQuery: pod, | ||
| ContainerQuery: container, | ||
| InitContainers: true, | ||
| EphemeralContainers: true, | ||
| TailLines: tailLines, | ||
| Since: 48 * time.Hour, | ||
| LabelSelector: labelSelector, | ||
| FieldSelector: fields.Everything(), | ||
| AllNamespaces: false, | ||
| ErrOut: os.Stderr, | ||
| Out: os.Stdout, | ||
| ContainerStates: []stern.ContainerState{"running"}, | ||
| Template: tmpl, | ||
| }, nil | ||
| } |
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