Example #1
0
func ExitIfError(context string, err error) {
	if err != nil {
		say.Fprintln(os.Stderr, 0, say.Red(context))
		say.Fprintln(os.Stderr, 0, say.Red(err.Error()))
		os.Exit(1)
	}
}
Example #2
0
func usageForCommandGroup(commandGroup common.CommandGroup, includeFlags bool) {
	say.Fprintln(os.Stderr, 0, "%s - %s", say.Cyan(commandGroup.Name), say.LightGray(commandGroup.Description))
	say.Fprintln(os.Stderr, 0, strings.Repeat("-", len(commandGroup.Name)+3+len(commandGroup.Description)))
	for _, command := range commandGroup.Commands {
		usageForCommand(1, command, includeFlags)
	}
}
Example #3
0
File: main.go Project: jbayer/grace
func usage(commands []Command) {
	say.FprintBanner(os.Stderr, "Probe", "=")
	for _, command := range commands {
		say.Fprintln(os.Stderr, 0, "%s %s", say.Green(command.Name), say.LightGray(command.Description))
		command.FlagSet.PrintDefaults()
		say.Fprintln(os.Stderr, 0, "")
	}
}
Example #4
0
func usageForCommand(indentation int, command common.Command, includeFlags bool) {
	say.Fprintln(os.Stderr, indentation, "%s %s", say.Green(command.Name), say.LightGray(command.Description))
	if includeFlags {
		buffer := &bytes.Buffer{}
		command.FlagSet.SetOutput(buffer)
		command.FlagSet.PrintDefaults()
		say.Fprintln(os.Stderr, indentation, buffer.String())
	}
}
Example #5
0
func SetDomainCommand() common.Command {
	var (
		bbsConfig config_finder.BBSConfig
	)

	flagSet := flag.NewFlagSet("set-domain", flag.ExitOnError)
	bbsConfig.PopulateFlags(flagSet)

	return common.Command{
		Name:        "set-domain",
		Description: "domain ttl - updates the domain in the BBS (ttl is a duration)",
		FlagSet:     flagSet,
		Run: func(args []string) {
			bbsClient, err := config_finder.NewBBS(bbsConfig)
			common.ExitIfError("Could not construct BBS", err)

			if len(args) != 2 {
				say.Fprintln(os.Stderr, 0, say.Red("Expected domain and ttl"))
				os.Exit(1)
			}
			ttl, err := time.ParseDuration(args[1])
			common.ExitIfError("Failed to parse TTL", err)

			err = set_domain.SetDomain(bbsClient, args[0], ttl)
			common.ExitIfError("Failed to submit lrp", err)
		},
	}
}
func GetDesiredLRPCommand() common.Command {
	var (
		bbsConfig config_finder.BBSConfig
	)

	flagSet := flag.NewFlagSet("get-desired-lrp", flag.ExitOnError)
	bbsConfig.PopulateFlags(flagSet)

	return common.Command{
		Name:        "get-desired-lrp",
		Description: "<process-guid> - get a DesiredLRP",
		FlagSet:     flagSet,
		Run: func(args []string) {
			bbsClient, err := config_finder.NewBBS(bbsConfig)
			common.ExitIfError("Could not construct BBS", err)

			if len(args) == 0 {
				say.Fprintln(os.Stderr, 0, say.Red("missing process-guid"))
				os.Exit(1)
			}

			desiredLRP, err := bbsClient.DesiredLRPByProcessGuid(args[0])
			common.ExitIfError("Failed to fetch DesiredLRP", err)

			preview, _ := json.MarshalIndent(desiredLRP, "", "  ")
			say.Println(0, string(preview))
		},
	}
}
Example #7
0
func RemoveLRPCommand() common.Command {
	var (
		bbsConfig config_finder.BBSConfig
	)

	flagSet := flag.NewFlagSet("remove-lrp", flag.ExitOnError)
	bbsConfig.PopulateFlags(flagSet)

	return common.Command{
		Name:        "remove-lrp",
		Description: "<process-guid> - remove an lrp",
		FlagSet:     flagSet,
		Run: func(args []string) {
			bbsClient, err := config_finder.NewBBS(bbsConfig)
			common.ExitIfError("Could not construct BBS", err)

			if len(args) == 0 {
				say.Fprintln(os.Stderr, 0, say.Red("You must specify a process-guid"))
				os.Exit(1)
			} else {
				err := bbsClient.RemoveDesiredLRP(args[0])
				common.ExitIfError("Failed to remove lrp", err)
			}
		},
	}
}
func UpdateDesiredLRPCommand() common.Command {
	var (
		bbsConfig config_finder.BBSConfig
	)

	flagSet := flag.NewFlagSet("update-lrp", flag.ExitOnError)
	bbsConfig.PopulateFlags(flagSet)

	return common.Command{
		Name:        "update-lrp",
		Description: "<process-guid> <path to json file> - update a DesiredLRP",
		FlagSet:     flagSet,
		Run: func(args []string) {
			bbsClient, err := config_finder.NewBBS(bbsConfig)
			common.ExitIfError("Could not construct BBS", err)

			var raw = []byte{}

			if len(args) == 0 {
				say.Fprintln(os.Stderr, 0, say.Red("missing process-guid"))
				os.Exit(1)
			} else if len(args) == 1 {
				say.Fprintln(os.Stderr, 0, "Reading from stdin...")
				raw, err = ioutil.ReadAll(os.Stdin)
				common.ExitIfError("Failed to read from stdin", err)
			} else {
				raw, err = ioutil.ReadFile(args[1])
				common.ExitIfError("Failed to read from file", err)
			}

			desiredLRPUpdate := &models.DesiredLRPUpdate{}

			err = json.Unmarshal(raw, desiredLRPUpdate)
			common.ExitIfError("Failed to decode DesiredLRPUpdate", err)

			say.Println(0, "Updating %s:", args[0])
			preview, _ := json.MarshalIndent(desiredLRPUpdate, "", "  ")
			say.Println(0, string(preview))

			err = bbsClient.UpdateDesiredLRP(args[0], desiredLRPUpdate)
			common.ExitIfError("Failed to update DesiredLRP", err)
		},
	}
}
Example #9
0
func usage(commandGroups []common.CommandGroup) {
	if len(os.Args) > 2 {
		matcher := strings.ToLower(os.Args[2])
		for _, commandGroup := range commandGroups {
			if strings.HasPrefix(strings.ToLower(commandGroup.Name), matcher) {
				usageForCommandGroup(commandGroup, true)
				return
			}

			for _, command := range commandGroup.Commands {
				if strings.HasPrefix(strings.ToLower(command.Name), matcher) {
					usageForCommand(0, command, true)
					return
				}
			}
		}
		say.Fprintln(os.Stderr, 0, say.Red("Unkown command: %s", os.Args[2]))
	}

	say.Fprintln(os.Stderr, 0, "%s", say.Cyan("Help and Autocompletion"))
	say.Fprintln(os.Stderr, 0, strings.Repeat("-", len("Help and Autocompletion")))
	say.Fprintln(os.Stderr, 1, "%s %s", say.Green("help"), say.LightGray("[command] - Show this help, or detailed help for the passed in command"))
	say.Fprintln(os.Stderr, 1, "%s %s", say.Green("completions"), say.LightGray("Generate BASH Completions for veritas"))
	say.Fprintln(os.Stderr, 0, "")

	for _, commandGroup := range commandGroups {
		usageForCommandGroup(commandGroup, false)
		say.Println(0, "")
	}
}
Example #10
0
func GetActualLRPCommand() common.Command {
	var (
		bbsConfig config_finder.BBSConfig
	)

	flagSet := flag.NewFlagSet("get-actual-lrp", flag.ExitOnError)
	bbsConfig.PopulateFlags(flagSet)

	return common.Command{
		Name:        "get-actual-lrp",
		Description: "<process-guid> <optional: index> - get an ActualLRP",
		FlagSet:     flagSet,
		Run: func(args []string) {
			bbsClient, err := config_finder.NewBBS(bbsConfig)
			common.ExitIfError("Could not construct BBS", err)

			var index = -1

			if len(args) == 0 {
				say.Fprintln(os.Stderr, 0, say.Red("missing process-guid"))
				os.Exit(1)
			}

			processGuid := args[0]

			if len(args) == 2 {
				index, err = strconv.Atoi(args[1])
				common.ExitIfError("Could not parse index", err)
			}

			if index == -1 {
				actualLRPGroups, err := bbsClient.ActualLRPGroupsByProcessGuid(processGuid)
				common.ExitIfError("Could not fetch ActualLRPs", err)

				for _, actualLRPGroup := range actualLRPGroups {
					actualLRP, _ := actualLRPGroup.Resolve()
					preview, _ := json.MarshalIndent(actualLRP, "", "  ")
					say.Println(0, string(preview))
				}
			} else {
				actualLRPGroup, err := bbsClient.ActualLRPGroupByProcessGuidAndIndex(processGuid, index)
				common.ExitIfError("Could not fetch ActualLRP", err)

				actualLRP, _ := actualLRPGroup.Resolve()
				preview, _ := json.MarshalIndent(actualLRP, "", "  ")
				say.Println(0, string(preview))
			}
		},
	}
}
func CreateDesiredLRPCommand() common.Command {
	var (
		bbsConfig config_finder.BBSConfig
	)

	flagSet := flag.NewFlagSet("desire-lrp", flag.ExitOnError)
	bbsConfig.PopulateFlags(flagSet)

	return common.Command{
		Name:        "desire-lrp",
		Description: "<path to json file> - create a DesiredLRP",
		FlagSet:     flagSet,
		Run: func(args []string) {
			bbsClient, err := config_finder.NewBBS(bbsConfig)
			common.ExitIfError("Could not construct BBS", err)

			var raw = []byte{}

			if len(args) == 0 {
				say.Fprintln(os.Stderr, 0, "Reading from stdin...")
				raw, err = ioutil.ReadAll(os.Stdin)
				common.ExitIfError("Failed to read from stdin", err)
			} else {
				raw, err = ioutil.ReadFile(args[0])
				common.ExitIfError("Failed to read from file", err)
			}

			desiredLRP := &models.DesiredLRP{}

			err = json.Unmarshal(raw, desiredLRP)
			common.ExitIfError("Failed to decode DesiredLRP", err)

			say.Println(0, "Desiring:")
			preview, _ := json.MarshalIndent(desiredLRP, "", "  ")
			say.Println(0, string(preview))

			err = bbsClient.DesireLRP(desiredLRP)
			common.ExitIfError("Failed to desire DesiredLRP", err)
		},
	}
}
Example #12
0
func Autodetect(out io.Writer) error {
	jobs, err := ioutil.ReadDir("/var/vcap/jobs")
	if err != nil {
		return err
	}

	vitalsAddrs := []string{}
	gardenAddr := ""
	gardenNetwork := ""
	bbsEndpoint := ""

	debugRe := regexp.MustCompile(`debugAddr=(\d+.\d+.\d+.\d+:\d+)`)
	gardenTCPAddrRe := regexp.MustCompile(`gardenAddr=(\d+.\d+.\d+.\d+:\d+)`)
	gardenUnixAddrRe := regexp.MustCompile(`gardenAddr=([/\-\w+\.\d]+)`)
	bbsEndpointRe := regexp.MustCompile(`bbsAddress=([:/\-\w+\.\d]+)`)

	for _, job := range jobs {
		jobDir := filepath.Join("/var/vcap/jobs", job.Name(), "bin")
		ctls, err := ioutil.ReadDir(jobDir)
		if err != nil {
			return err
		}

		for _, ctl := range ctls {
			if ctl.IsDir() {
				continue
			}
			if strings.HasSuffix(ctl.Name(), "_ctl") {
				name := strings.TrimSuffix(ctl.Name(), "_ctl")
				path := filepath.Join(jobDir, ctl.Name())
				data, err := ioutil.ReadFile(path)
				if err != nil {
					return err
				}

				if debugRe.Match(data) {
					addr := string(debugRe.FindSubmatch(data)[1])
					vitalsAddrs = append(vitalsAddrs, fmt.Sprintf("%s:%s", name, addr))
				}

				if name == "rep" {
					if gardenTCPAddrRe.Match(data) {
						gardenAddr = string(gardenTCPAddrRe.FindSubmatch(data)[1])
						gardenNetwork = "tcp"
					} else if gardenUnixAddrRe.Match(data) {
						gardenAddr = string(gardenUnixAddrRe.FindSubmatch(data)[1])
						gardenNetwork = "unix"
					}

					if bbsEndpointRe.Match(data) {
						bbsEndpoint = string(bbsEndpointRe.FindSubmatch(data)[1])
					}
				}
			}
		}
	}

	if len(vitalsAddrs) > 0 {
		say.Fprintln(out, 0, "export VITALS_ADDRS=%s", strings.Join(vitalsAddrs, ","))
	}
	if gardenAddr != "" {
		say.Fprintln(out, 0, "export GARDEN_ADDR=%s", gardenAddr)
		say.Fprintln(out, 0, "export GARDEN_NETWORK=%s", gardenNetwork)
	}
	if bbsEndpoint != "" {
		say.Fprintln(out, 0, "export BBS_ENDPOINT=%s", bbsEndpoint)
	}

	return nil
}
Example #13
0
func printContainer(out io.Writer, containerInfo ContainerInfo) {
	info := containerInfo.Info
	metrics := containerInfo.Metrics
	say.Fprintln(out, 0,
		"%s - %s @ %s",
		say.Green(containerInfo.Handle),
		info.State,
		info.ContainerPath,
	)

	say.Fprintln(out, 1,
		"Memory: %.3f MB",
		float64(metrics.MemoryStat.TotalRss+metrics.MemoryStat.TotalCache-metrics.MemoryStat.TotalInactiveFile)/1024.0/1024.0,
	)

	say.Fprintln(out, 1,
		"Disk: Total:%.3f MB %d Inodes, Exclusive:%.3f MB %d Inodes",
		float64(metrics.DiskStat.TotalBytesUsed)/1024.0/1024.0,
		metrics.DiskStat.TotalInodesUsed,
		float64(metrics.DiskStat.ExclusiveBytesUsed)/1024.0/1024.0,
		metrics.DiskStat.ExclusiveInodesUsed,
	)

	ports := []string{}
	for _, portMapping := range info.MappedPorts {
		ports = append(ports, fmt.Sprintf("%d:%d", portMapping.HostPort, portMapping.ContainerPort))
	}

	say.Fprintln(out, 1,
		"%s=>%s: %s",
		say.Green(info.HostIP),
		say.Green(containerInfo.Handle),
		strings.Join(ports, ","),
	)

	if len(info.Events) > 0 {
		say.Fprintln(out, 1,
			"Events: %s",
			strings.Join(info.Events, ","),
		)
	}

	if len(info.ProcessIDs) > 0 {
		say.Fprintln(out, 1,
			"Running: %d processes",
			len(info.ProcessIDs),
		)
	}

	if len(info.Properties) > 0 {
		say.Fprintln(out, 1,
			"Properties:",
		)
		for key, value := range info.Properties {
			say.Fprintln(out, 2,
				"%s: %s",
				key, value,
			)
		}
	}
}