mirror of https://github.com/docker/compose.git
51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
package cmd
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import (
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"context"
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"os"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/docker/api/client"
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"github.com/docker/api/containers"
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)
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type logsOpts struct {
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Follow bool
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Tail string
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}
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// LogsCommand fetches and shows logs of a container
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func LogsCommand() *cobra.Command {
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var opts logsOpts
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cmd := &cobra.Command{
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Use: "logs",
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Short: "Fetch the logs of a container",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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return runLogs(cmd.Context(), args[0], opts)
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},
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}
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cmd.Flags().BoolVarP(&opts.Follow, "follow", "f", false, "Follow log outut")
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cmd.Flags().StringVar(&opts.Tail, "tail", "all", "Number of lines to show from the end of the logs")
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return cmd
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}
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func runLogs(ctx context.Context, containerName string, opts logsOpts) error {
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c, err := client.New(ctx)
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if err != nil {
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return errors.Wrap(err, "cannot connect to backend")
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}
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req := containers.LogsRequest{
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Follow: opts.Follow,
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Tail: opts.Tail,
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Writer: os.Stdout,
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}
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return c.ContainerService().Logs(ctx, containerName, req)
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}
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