Replace godep with dep

vendor/k8s.io/kubernetes/pkg/kubelet/dockershim/libdocker/legacy.go

@@ -0,0 +1,92 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package libdocker
+
+import (
+	"fmt"
+	"math/rand"
+	"strconv"
+	"strings"
+
+	"github.com/golang/glog"
+
+	"k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/types"
+	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
+)
+
+// This file contains functions used in the non-CRI integration (< 1.6). They
+// are currently used for recoginzing containers created by pre-1.6 kubelets.
+// TODO: Remove this file for kubernetes 1.8+.
+
+// Creates a name which can be reversed to identify both full pod name and container name.
+// This function returns stable name, unique name and a unique id.
+// Although rand.Uint32() is not really unique, but it's enough for us because error will
+// only occur when instances of the same container in the same pod have the same UID. The
+// chance is really slim.
+func BuildDockerName(dockerName KubeletContainerName, container *v1.Container) (string, string, string) {
+	containerName := dockerName.ContainerName + "." + strconv.FormatUint(kubecontainer.HashContainerLegacy(container), 16)
+	stableName := fmt.Sprintf("%s_%s_%s_%s",
+		containerNamePrefix,
+		containerName,
+		dockerName.PodFullName,
+		dockerName.PodUID)
+	UID := fmt.Sprintf("%08x", rand.Uint32())
+	return stableName, fmt.Sprintf("%s_%s", stableName, UID), UID
+}
+
+// Unpacks a container name, returning the pod full name and container name we would have used to
+// construct the docker name. If we are unable to parse the name, an error is returned.
+func ParseDockerName(name string) (dockerName *KubeletContainerName, hash uint64, err error) {
+	// For some reason docker appears to be appending '/' to names.
+	// If it's there, strip it.
+	name = strings.TrimPrefix(name, "/")
+	parts := strings.Split(name, "_")
+	if len(parts) == 0 || parts[0] != containerNamePrefix {
+		err = fmt.Errorf("failed to parse Docker container name %q into parts", name)
+		return nil, 0, err
+	}
+	if len(parts) < 6 {
+		// We have at least 5 fields.  We may have more in the future.
+		// Anything with less fields than this is not something we can
+		// manage.
+		glog.Warningf("found a container with the %q prefix, but too few fields (%d): %q", containerNamePrefix, len(parts), name)
+		err = fmt.Errorf("Docker container name %q has less parts than expected %v", name, parts)
+		return nil, 0, err
+	}
+
+	nameParts := strings.Split(parts[1], ".")
+	containerName := nameParts[0]
+	if len(nameParts) > 1 {
+		hash, err = strconv.ParseUint(nameParts[1], 16, 32)
+		if err != nil {
+			glog.Warningf("invalid container hash %q in container %q", nameParts[1], name)
+		}
+	}
+
+	podFullName := parts[2] + "_" + parts[3]
+	podUID := types.UID(parts[4])
+
+	return &KubeletContainerName{podFullName, podUID, containerName}, hash, nil
+}
+
+// KubeletContainerName encapsulates a pod name and a Kubernetes container name.
+type KubeletContainerName struct {
+	PodFullName   string
+	PodUID        types.UID
+	ContainerName string
+}