Golang pflag.Duration函数代码示例

// Duration creates a new entry in the flag set with Duration value.
// The environment value used as a default, if it exists
func Duration(flagName, envName string, value time.Duration, usage string) *time.Duration {
	verifyNames(flagName, envName)
	envValStr := lookupEnv(envName)
	if envValStr != "" {
		value, _ = time.ParseDuration(envValStr)
	}

	flag.Duration(flagName, value, usage)
	return pflag.Duration(flagName, value, usage)
}

	kclient "k8s.io/kubernetes/pkg/client/unversioned"
	kclientcmd "k8s.io/kubernetes/pkg/client/unversioned/clientcmd"
	kframework "k8s.io/kubernetes/pkg/controller/framework"
	kselector "k8s.io/kubernetes/pkg/fields"
	etcdutil "k8s.io/kubernetes/pkg/storage/etcd/util"
	utilflag "k8s.io/kubernetes/pkg/util/flag"
	"k8s.io/kubernetes/pkg/util/validation"
	"k8s.io/kubernetes/pkg/util/wait"
)

// The name of the "master" Kubernetes Service.
const kubernetesSvcName = "kubernetes"

var (
	argDomain              = flag.String("domain", "cluster.local", "domain under which to create names")
	argEtcdMutationTimeout = flag.Duration("etcd-mutation-timeout", 10*time.Second, "crash after retrying etcd mutation for a specified duration")
	argEtcdServer          = flag.String("etcd-server", "http://127.0.0.1:4001", "URL to etcd server")
	argKubecfgFile         = flag.String("kubecfg-file", "", "Location of kubecfg file for access to kubernetes master service; --kube-master-url overrides the URL part of this; if neither this nor --kube-master-url are provided, defaults to service account tokens")
	argKubeMasterURL       = flag.String("kube-master-url", "", "URL to reach kubernetes master. Env variables in this flag will be expanded.")
	healthzPort            = flag.Int("healthz-port", 8081, "port on which to serve a kube2sky HTTP readiness probe.")
)

const (
	// Maximum number of attempts to connect to etcd server.
	maxConnectAttempts = 12
	// Resync period for the kube controller loop.
	resyncPeriod = 30 * time.Minute
	// A subdomain added to the user specified domain for all services.
	serviceSubdomain = "svc"
	// A subdomain added to the user specified dmoain for all pods.
	podSubdomain = "pod"

limitations under the License.
*/

package logs

import (
	"flag"
	"log"
	"time"

	"github.com/golang/glog"
	"github.com/spf13/pflag"
	"k8s.io/kubernetes/pkg/util/wait"
)

var logFlushFreq = pflag.Duration("log-flush-frequency", 5*time.Second, "Maximum number of seconds between log flushes")

// TODO(thockin): This is temporary until we agree on log dirs and put those into each cmd.
func init() {
	flag.Set("logtostderr", "true")
}

// GlogWriter serves as a bridge between the standard log package and the glog package.
type GlogWriter struct{}

// Write implements the io.Writer interface.
func (writer GlogWriter) Write(data []byte) (n int, err error) {
	glog.Info(string(data))
	return len(data), nil
}

	}
	if err := conn.Exec(dump, nil); err != nil {
		t.Fatal(err)
	}
	if err := DumpTable(&b, conn, "o", "t"); err != nil {
		t.Fatal(err)
	}
	dump2 := b.String()
	if dump != dump2 {
		t.Fatalf("unmatching dumps:\n%s\n%s", dump, dump2)
	}
}

const durationRandom = "duration-random"

var randomTestTime = pflag.Duration(durationRandom, time.Second, "duration for randomized dump test to run")

func init() {
	pflag.Lookup(durationRandom).Hidden = true
}

// TestDumpRandom generates a random number of random rows with all data
// types. This data is dumped, inserted, and dumped again. The two dumps
// are compared for exactness. The data from the inserted dump is then
// SELECT'd and compared to the original generated data to ensure it is
// round-trippable.
func TestDumpRandom(t *testing.T) {
	defer leaktest.AfterTest(t)()

	c, err := newCLITest(t, false)
	if err != nil {

	_ "github.com/GoogleCloudPlatform/kubernetes/pkg/healthz"
	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet"
	"github.com/GoogleCloudPlatform/kubernetes/pkg/master/ports"
	"github.com/GoogleCloudPlatform/kubernetes/pkg/standalone"
	"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
	"github.com/GoogleCloudPlatform/kubernetes/pkg/version/verflag"

	"github.com/golang/glog"
	flag "github.com/spf13/pflag"
)

const defaultRootDir = "/var/lib/kubelet"

var (
	config                  = flag.String("config", "", "Path to the config file or directory of files")
	syncFrequency           = flag.Duration("sync_frequency", 10*time.Second, "Max period between synchronizing running containers and config")
	fileCheckFrequency      = flag.Duration("file_check_frequency", 20*time.Second, "Duration between checking config files for new data")
	httpCheckFrequency      = flag.Duration("http_check_frequency", 20*time.Second, "Duration between checking http for new data")
	manifestURL             = flag.String("manifest_url", "", "URL for accessing the container manifest")
	enableServer            = flag.Bool("enable_server", true, "Enable the info server")
	address                 = util.IP(net.ParseIP("127.0.0.1"))
	port                    = flag.Uint("port", ports.KubeletPort, "The port for the info server to serve on")
	hostnameOverride        = flag.String("hostname_override", "", "If non-empty, will use this string as identification instead of the actual hostname.")
	networkContainerImage   = flag.String("network_container_image", kubelet.NetworkContainerImage, "The image that network containers in each pod will use.")
	dockerEndpoint          = flag.String("docker_endpoint", "", "If non-empty, use this for the docker endpoint to communicate with")
	etcdServerList          util.StringList
	etcdConfigFile          = flag.String("etcd_config", "", "The config file for the etcd client. Mutually exclusive with -etcd_servers")
	rootDirectory           = flag.String("root_dir", defaultRootDir, "Directory path for managing kubelet files (volume mounts,etc).")
	allowPrivileged         = flag.Bool("allow_privileged", false, "If true, allow containers to request privileged mode. [default=false]")
	registryPullQPS         = flag.Float64("registry_qps", 0.0, "If > 0, limit registry pull QPS to this value.  If 0, unlimited. [default=0.0]")
	registryBurst           = flag.Int("registry_burst", 10, "Maximum size of a bursty pulls, temporarily allows pulls to burst to this number, while still not exceeding registry_qps.  Only used if --registry_qps > 0")

	readOnlyPort = flag.Int("read_only_port", 7080, ""+
		"The port from which to serve read-only resources. If 0, don't serve on a "+
		"read-only address. It is assumed that firewall rules are set up such that "+
		"this port is not reachable from outside of the cluster.")
	securePort  = flag.Int("secure_port", 8443, "The port from which to serve HTTPS with authentication and authorization. If 0, don't serve HTTPS ")
	tlsCertFile = flag.String("tls_cert_file", "", ""+
		"File containing x509 Certificate for HTTPS.  (CA cert, if any, concatenated after server cert). "+
		"If HTTPS serving is enabled, and --tls_cert_file and --tls_private_key_file are not provided, "+
		"a self-signed certificate and key are generated for the public address and saved to /var/run/kubernetes.")
	tlsPrivateKeyFile          = flag.String("tls_private_key_file", "", "File containing x509 private key matching --tls_cert_file.")
	apiPrefix                  = flag.String("api_prefix", "/api", "The prefix for API requests on the server. Default '/api'.")
	storageVersion             = flag.String("storage_version", "", "The version to store resources with. Defaults to server preferred")
	cloudProvider              = flag.String("cloud_provider", "", "The provider for cloud services.  Empty string for no provider.")
	cloudConfigFile            = flag.String("cloud_config", "", "The path to the cloud provider configuration file.  Empty string for no configuration file.")
	healthCheckMinions         = flag.Bool("health_check_minions", true, "If true, health check minions and filter unhealthy ones. Default true.")
	eventTTL                   = flag.Duration("event_ttl", 48*time.Hour, "Amount of time to retain events. Default 2 days.")
	tokenAuthFile              = flag.String("token_auth_file", "", "If set, the file that will be used to secure the secure port of the API server via token authentication.")
	authorizationMode          = flag.String("authorization_mode", "AlwaysAllow", "Selects how to do authorization on the secure port.  One of: "+strings.Join(apiserver.AuthorizationModeChoices, ","))
	authorizationPolicyFile    = flag.String("authorization_policy_file", "", "File with authorization policy in csv format, used with --authorization_mode=ABAC, on the secure port.")
	admissionControl           = flag.String("admission_control", "AlwaysAdmit", "Ordered list of plug-ins to do admission control of resources into cluster. Comma-delimited list of: "+strings.Join(admission.GetPlugins(), ", "))
	admissionControlConfigFile = flag.String("admission_control_config_file", "", "File with admission control configuration.")
	etcdServerList             util.StringList
	etcdConfigFile             = flag.String("etcd_config", "", "The config file for the etcd client. Mutually exclusive with -etcd_servers.")
	corsAllowedOriginList      util.StringList
	allowPrivileged            = flag.Bool("allow_privileged", false, "If true, allow privileged containers.")
	portalNet                  util.IPNet // TODO: make this a list
	enableLogsSupport          = flag.Bool("enable_logs_support", true, "Enables server endpoint for log collection")
	runtimeConfig              util.ConfigurationMap
	kubeletConfig              = client.KubeletConfig{
		Port:        10250,
		EnableHttps: false,