140 lines
3.5 KiB
Go
140 lines
3.5 KiB
Go
package app
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import (
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"context"
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"io"
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"os"
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"slices"
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"sync"
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"time"
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"coopcloud.tech/abra/cli/internal"
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"coopcloud.tech/abra/pkg/autocomplete"
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"coopcloud.tech/abra/pkg/client"
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"coopcloud.tech/abra/pkg/config"
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"coopcloud.tech/abra/pkg/recipe"
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"coopcloud.tech/abra/pkg/upstream/stack"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/filters"
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"github.com/docker/docker/api/types/swarm"
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dockerClient "github.com/docker/docker/client"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli"
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)
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var appLogsCommand = cli.Command{
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Name: "logs",
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Aliases: []string{"l"},
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ArgsUsage: "<domain> [<service>]",
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Usage: "Tail app logs",
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Flags: []cli.Flag{
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internal.StdErrOnlyFlag,
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internal.SinceLogsFlag,
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internal.DebugFlag,
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},
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Before: internal.SubCommandBefore,
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BashComplete: autocomplete.AppNameComplete,
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Action: func(c *cli.Context) error {
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app := internal.ValidateApp(c)
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stackName := app.StackName()
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if err := recipe.EnsureExists(app.Recipe); err != nil {
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logrus.Fatal(err)
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}
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cl, err := client.New(app.Server)
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if err != nil {
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logrus.Fatal(err)
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}
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isDeployed, _, err := stack.IsDeployed(context.Background(), cl, stackName)
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if err != nil {
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logrus.Fatal(err)
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}
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if !isDeployed {
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logrus.Fatalf("%s is not deployed?", app.Name)
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}
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serviceName := c.Args().Get(1)
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serviceNames := []string{}
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if serviceName != "" {
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serviceNames = []string{serviceName}
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}
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err = tailLogs(cl, app, serviceNames)
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if err != nil {
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logrus.Fatal(err)
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}
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return nil
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},
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}
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// tailLogs prints logs for the given app with optional service names to be
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// filtered on. It also checks if the latest task is not runnning and then
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// prints the past tasks.
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func tailLogs(cl *dockerClient.Client, app config.App, serviceNames []string) error {
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f, err := app.Filters(true, false, serviceNames...)
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if err != nil {
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return err
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}
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services, err := cl.ServiceList(context.Background(), types.ServiceListOptions{Filters: f})
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if err != nil {
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return err
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}
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var wg sync.WaitGroup
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for _, service := range services {
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filters := filters.NewArgs()
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filters.Add("name", service.Spec.Name)
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tasks, err := cl.TaskList(context.Background(), types.TaskListOptions{Filters: f})
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if err != nil {
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return err
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}
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if len(tasks) > 0 {
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// Need to sort the tasks by the CreatedAt field in the inverse order.
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// Otherwise they are in the reversed order and not sorted properly.
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slices.SortFunc[[]swarm.Task](tasks, func(t1, t2 swarm.Task) int {
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return int(t2.Meta.CreatedAt.Unix() - t1.Meta.CreatedAt.Unix())
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})
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lastTask := tasks[0].Status
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if lastTask.State != swarm.TaskStateRunning {
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for _, task := range tasks {
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logrus.Errorf("[%s] %s State %s: %s", service.Spec.Name, task.Meta.CreatedAt.Format(time.RFC3339), task.Status.State, task.Status.Err)
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}
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}
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}
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// Collect the logs in a go routine, so the logs from all services are
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// collected in parallel.
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wg.Add(1)
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go func(serviceID string) {
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logs, err := cl.ServiceLogs(context.Background(), serviceID, types.ContainerLogsOptions{
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ShowStderr: true,
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ShowStdout: !internal.StdErrOnly,
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Since: internal.SinceLogs,
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Until: "",
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Timestamps: true,
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Follow: true,
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Tail: "20",
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Details: false,
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})
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if err != nil {
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logrus.Fatal(err)
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}
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defer logs.Close()
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_, err = io.Copy(os.Stdout, logs)
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if err != nil && err != io.EOF {
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logrus.Fatal(err)
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}
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}(service.ID)
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}
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// Wait for all log streams to be closed.
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wg.Wait()
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return nil
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}
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