Port remaining code to pkg/util/version

pkg/kubelet/cm/BUILD

@@ -36,8 +36,8 @@ go_library(
         "//pkg/util/runtime:go_default_library",
         "//pkg/util/sets:go_default_library",
         "//pkg/util/sysctl:go_default_library",
+        "//pkg/util/version:go_default_library",
         "//pkg/util/wait:go_default_library",
-        "//vendor:github.com/blang/semver",
         "//vendor:github.com/golang/glog",
         "//vendor:github.com/opencontainers/runc/libcontainer/cgroups",
         "//vendor:github.com/opencontainers/runc/libcontainer/cgroups/fs",

pkg/kubelet/cm/container_manager_linux.go

@@ -29,7 +29,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/blang/semver"
 	"github.com/golang/glog"
 	"github.com/opencontainers/runc/libcontainer/cgroups"
 	"github.com/opencontainers/runc/libcontainer/cgroups/fs"
@@ -47,6 +46,7 @@ import (
 	"k8s.io/kubernetes/pkg/util/runtime"
 	"k8s.io/kubernetes/pkg/util/sets"
 	utilsysctl "k8s.io/kubernetes/pkg/util/sysctl"
+	utilversion "k8s.io/kubernetes/pkg/util/version"
 	"k8s.io/kubernetes/pkg/util/wait"
 )
 
@@ -66,7 +66,7 @@ const (
 
 var (
 	// The docker version in which containerd was introduced.
-	containerdVersion = semver.MustParse("1.11.0")
+	containerdVersion = utilversion.MustParseSemantic("1.11.0")
 )
 
 // A non-user container tracked by the Kubelet.
@@ -632,10 +632,10 @@ func getPidsForProcess(name, pidFile string) ([]int, error) {
 // Temporarily export the function to be used by dockershim.
 // TODO(yujuhong): Move this function to dockershim once kubelet migrates to
 // dockershim as the default.
-func EnsureDockerInContainer(dockerVersion semver.Version, oomScoreAdj int, manager *fs.Manager) error {
+func EnsureDockerInContainer(dockerVersion *utilversion.Version, oomScoreAdj int, manager *fs.Manager) error {
 	type process struct{ name, file string }
 	dockerProcs := []process{{dockerProcessName, dockerPidFile}}
-	if dockerVersion.GTE(containerdVersion) {
+	if dockerVersion.AtLeast(containerdVersion) {
 		dockerProcs = append(dockerProcs, process{containerdProcessName, containerdPidFile})
 	}
 	var errs []error
@@ -797,17 +797,16 @@ func isKernelPid(pid int) bool {
 }
 
 // Helper for getting the docker version.
-func getDockerVersion(cadvisor cadvisor.Interface) semver.Version {
-	var fallback semver.Version // Fallback to zero-value by default.
+func getDockerVersion(cadvisor cadvisor.Interface) *utilversion.Version {
 	versions, err := cadvisor.VersionInfo()
 	if err != nil {
 		glog.Errorf("Error requesting cAdvisor VersionInfo: %v", err)
-		return fallback
+		return utilversion.MustParseSemantic("0.0.0")
 	}
-	dockerVersion, err := semver.Parse(versions.DockerVersion)
+	dockerVersion, err := utilversion.ParseSemantic(versions.DockerVersion)
 	if err != nil {
 		glog.Errorf("Error parsing docker version %q: %v", versions.DockerVersion, err)
-		return fallback
+		return utilversion.MustParseSemantic("0.0.0")
 	}
 	return dockerVersion
 }

pkg/kubelet/dockershim/cm/BUILD

@@ -18,8 +18,8 @@ go_library(
         "//pkg/kubelet/cm:go_default_library",
         "//pkg/kubelet/dockertools:go_default_library",
         "//pkg/kubelet/qos:go_default_library",
+        "//pkg/util/version:go_default_library",
         "//pkg/util/wait:go_default_library",
-        "//vendor:github.com/blang/semver",
         "//vendor:github.com/golang/glog",
         "//vendor:github.com/opencontainers/runc/libcontainer/cgroups/fs",
         "//vendor:github.com/opencontainers/runc/libcontainer/configs",

pkg/kubelet/dockershim/cm/container_manager_linux.go

@@ -25,13 +25,13 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/blang/semver"
 	"github.com/golang/glog"
 	"github.com/opencontainers/runc/libcontainer/cgroups/fs"
 	"github.com/opencontainers/runc/libcontainer/configs"
 	kubecm "k8s.io/kubernetes/pkg/kubelet/cm"
 	"k8s.io/kubernetes/pkg/kubelet/dockertools"
 	"k8s.io/kubernetes/pkg/kubelet/qos"
+	utilversion "k8s.io/kubernetes/pkg/util/version"
 	"k8s.io/kubernetes/pkg/util/wait"
 )
 
@@ -85,7 +85,7 @@ func (m *containerManager) doWork() {
 		glog.Errorf("Unable to get docker version: %v", err)
 		return
 	}
-	version, err := semver.Parse(v.Version)
+	version, err := utilversion.ParseSemantic(v.Version)
 	if err != nil {
 		glog.Errorf("Unable to parse docker version %q: %v", v.Version, err)
 		return

pkg/kubelet/dockertools/BUILD

@@ -62,7 +62,7 @@ go_library(
         "//pkg/util/sets:go_default_library",
         "//pkg/util/strings:go_default_library",
         "//pkg/util/term:go_default_library",
-        "//vendor:github.com/coreos/go-semver/semver",
+        "//pkg/util/version:go_default_library",
         "//vendor:github.com/docker/distribution/digest",
         "//vendor:github.com/docker/distribution/reference",
         "//vendor:github.com/docker/docker/pkg/jsonmessage",

pkg/kubelet/dockertools/docker_manager.go

@@ -34,7 +34,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/coreos/go-semver/semver"
 	dockertypes "github.com/docker/engine-api/types"
 	dockercontainer "github.com/docker/engine-api/types/container"
 	dockerstrslice "github.com/docker/engine-api/types/strslice"
@@ -73,6 +72,7 @@ import (
 	"k8s.io/kubernetes/pkg/util/sets"
 	utilstrings "k8s.io/kubernetes/pkg/util/strings"
 	"k8s.io/kubernetes/pkg/util/term"
+	utilversion "k8s.io/kubernetes/pkg/util/version"
 )
 
 const (
@@ -1033,37 +1033,9 @@ func getDockerNetworkMode(container *dockertypes.ContainerJSON) string {
 	return ""
 }
 
-// dockerVersion implements kubecontainer.Version interface by implementing
-// Compare() and String() (which is implemented by the underlying semver.Version)
-// TODO: this code is the same as rktVersion and may make sense to be moved to
-// somewhere shared.
-type dockerVersion struct {
-	*semver.Version
-}
-
 // newDockerVersion returns a semantically versioned docker version value
-func newDockerVersion(version string) (dockerVersion, error) {
-	sem, err := semver.NewVersion(version)
-	return dockerVersion{sem}, err
-}
-
-func (r dockerVersion) String() string {
-	return r.Version.String()
-}
-
-func (r dockerVersion) Compare(other string) (int, error) {
-	v, err := newDockerVersion(other)
-	if err != nil {
-		return -1, err
-	}
-
-	if r.LessThan(*v.Version) {
-		return -1, nil
-	}
-	if v.Version.LessThan(*r.Version) {
-		return 1, nil
-	}
-	return 0, nil
+func newDockerVersion(version string) (*utilversion.Version, error) {
+	return utilversion.ParseSemantic(version)
 }
 
 // apiVersion implements kubecontainer.Version interface by implementing

pkg/kubelet/dockertools/docker_manager_test.go

@@ -2117,12 +2117,14 @@ func TestDockerVersionComparison(t *testing.T) {
 		{version: "1.10.4-rc1", compare: -1},
 		{version: "1.11.1", compare: -1},
 		{version: "1.11.1-rc4", compare: -1},
-		{version: "invalid", compare: -1, err: true},
+		{version: "invalid", err: true},
 	} {
 		testCase := fmt.Sprintf("test case #%d test version %q", i, test.version)
 		res, err := v.Compare(test.version)
-		assert.Equal(t, test.compare, res, testCase)
 		assert.Equal(t, test.err, err != nil, testCase)
+		if !test.err {
+			assert.Equal(t, test.compare, res, testCase)
+		}
 	}
 }
 

pkg/kubelet/kuberuntime/BUILD

@@ -53,7 +53,7 @@ go_library(
         "//pkg/util/runtime:go_default_library",
         "//pkg/util/selinux:go_default_library",
         "//pkg/util/sets:go_default_library",
-        "//vendor:github.com/coreos/go-semver/semver",
+        "//pkg/util/version:go_default_library",
         "//vendor:github.com/docker/docker/pkg/jsonlog",
         "//vendor:github.com/fsnotify/fsnotify",
         "//vendor:github.com/golang/glog",

pkg/kubelet/kuberuntime/kuberuntime_manager.go

@@ -22,7 +22,6 @@ import (
 	"os"
 	"time"
 
-	"github.com/coreos/go-semver/semver"
 	"github.com/golang/glog"
 	cadvisorapi "github.com/google/cadvisor/info/v1"
 
@@ -43,6 +42,7 @@ import (
 	kubetypes "k8s.io/kubernetes/pkg/types"
 	"k8s.io/kubernetes/pkg/util/flowcontrol"
 	utilruntime "k8s.io/kubernetes/pkg/util/runtime"
+	utilversion "k8s.io/kubernetes/pkg/util/version"
 )
 
 const (
@@ -202,33 +202,8 @@ func (m *kubeGenericRuntimeManager) Type() string {
 	return m.runtimeName
 }
 
-// runtimeVersion implements kubecontainer.Version interface by implementing
-// Compare() and String()
-type runtimeVersion struct {
-	*semver.Version
-}
-
-func newRuntimeVersion(version string) (runtimeVersion, error) {
-	sem, err := semver.NewVersion(version)
-	if err != nil {
-		return runtimeVersion{}, err
-	}
-	return runtimeVersion{sem}, nil
-}
-
-func (r runtimeVersion) Compare(other string) (int, error) {
-	v, err := semver.NewVersion(other)
-	if err != nil {
-		return -1, err
-	}
-
-	if r.LessThan(*v) {
-		return -1, nil
-	}
-	if v.LessThan(*r.Version) {
-		return 1, nil
-	}
-	return 0, nil
+func newRuntimeVersion(version string) (*utilversion.Version, error) {
+	return utilversion.ParseSemantic(version)
 }
 
 func (m *kubeGenericRuntimeManager) getTypedVersion() (*runtimeapi.VersionResponse, error) {

pkg/kubelet/rkt/BUILD

@@ -47,10 +47,10 @@ go_library(
         "//pkg/util/strings:go_default_library",
         "//pkg/util/term:go_default_library",
         "//pkg/util/uuid:go_default_library",
+        "//pkg/util/version:go_default_library",
         "//pkg/util/wait:go_default_library",
         "//vendor:github.com/appc/spec/schema",
         "//vendor:github.com/appc/spec/schema/types",
-        "//vendor:github.com/coreos/go-semver/semver",
         "//vendor:github.com/coreos/go-systemd/dbus",
         "//vendor:github.com/coreos/go-systemd/unit",
         "//vendor:github.com/coreos/rkt/api/v1alpha",

pkg/kubelet/rkt/version.go

@@ -20,45 +20,21 @@ import (
 	"fmt"
 	"sync"
 
-	"github.com/coreos/go-semver/semver"
 	rktapi "github.com/coreos/rkt/api/v1alpha"
 	"golang.org/x/net/context"
+
+	utilversion "k8s.io/kubernetes/pkg/util/version"
 )
 
 type versions struct {
 	sync.RWMutex
-	binVersion     rktVersion
-	apiVersion     rktVersion
+	binVersion     *utilversion.Version
+	apiVersion     *utilversion.Version
 	systemdVersion systemdVersion
 }
 
-// rktVersion implementes kubecontainer.Version interface by implementing
-// Compare() and String() (which is implemented by the underlying semver.Version)
-type rktVersion struct {
-	*semver.Version
-}
-
-func newRktVersion(version string) (rktVersion, error) {
-	sem, err := semver.NewVersion(version)
-	if err != nil {
-		return rktVersion{}, err
-	}
-	return rktVersion{sem}, nil
-}
-
-func (r rktVersion) Compare(other string) (int, error) {
-	v, err := semver.NewVersion(other)
-	if err != nil {
-		return -1, err
-	}
-
-	if r.LessThan(*v) {
-		return -1, nil
-	}
-	if v.LessThan(*r.Version) {
-		return 1, nil
-	}
-	return 0, nil
+func newRktVersion(version string) (*utilversion.Version, error) {
+	return utilversion.ParseSemantic(version)
 }
 
 func (r *Runtime) getVersions() error {