github.com/circular-dark/docker@v1.7.0/api/client/events.go (about)

     1  package client
     2  
     3  import (
     4  	"net/url"
     5  
     6  	"github.com/docker/docker/opts"
     7  	flag "github.com/docker/docker/pkg/mflag"
     8  	"github.com/docker/docker/pkg/parsers/filters"
     9  	"github.com/docker/docker/pkg/timeutils"
    10  )
    11  
    12  // CmdEvents prints a live stream of real time events from the server.
    13  //
    14  // Usage: docker events [OPTIONS]
    15  func (cli *DockerCli) CmdEvents(args ...string) error {
    16  	cmd := cli.Subcmd("events", "", "Get real time events from the server", true)
    17  	since := cmd.String([]string{"#since", "-since"}, "", "Show all events created since timestamp")
    18  	until := cmd.String([]string{"-until"}, "", "Stream events until this timestamp")
    19  	flFilter := opts.NewListOpts(nil)
    20  	cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")
    21  	cmd.Require(flag.Exact, 0)
    22  
    23  	cmd.ParseFlags(args, true)
    24  
    25  	var (
    26  		v               = url.Values{}
    27  		eventFilterArgs = filters.Args{}
    28  	)
    29  
    30  	// Consolidate all filter flags, and sanity check them early.
    31  	// They'll get process in the daemon/server.
    32  	for _, f := range flFilter.GetAll() {
    33  		var err error
    34  		eventFilterArgs, err = filters.ParseFlag(f, eventFilterArgs)
    35  		if err != nil {
    36  			return err
    37  		}
    38  	}
    39  	if *since != "" {
    40  		v.Set("since", timeutils.GetTimestamp(*since))
    41  	}
    42  	if *until != "" {
    43  		v.Set("until", timeutils.GetTimestamp(*until))
    44  	}
    45  	if len(eventFilterArgs) > 0 {
    46  		filterJSON, err := filters.ToParam(eventFilterArgs)
    47  		if err != nil {
    48  			return err
    49  		}
    50  		v.Set("filters", filterJSON)
    51  	}
    52  	sopts := &streamOpts{
    53  		rawTerminal: true,
    54  		out:         cli.out,
    55  	}
    56  	if err := cli.stream("GET", "/events?"+v.Encode(), sopts); err != nil {
    57  		return err
    58  	}
    59  	return nil
    60  }