move initsystem to kubeadm

Signed-off-by: Yassine TIJANI <ytijani@vmware.com>

cmd/kubeadm/.import-restrictions

@@ -78,7 +78,6 @@
 				"k8s.io/kubernetes/pkg/util/conntrack",
 				"k8s.io/kubernetes/pkg/util/dbus",
 				"k8s.io/kubernetes/pkg/util/hash",
-				"k8s.io/kubernetes/pkg/util/initsystem",
 				"k8s.io/kubernetes/pkg/util/ipset",
 				"k8s.io/kubernetes/pkg/util/iptables",
 				"k8s.io/kubernetes/pkg/util/ipvs",

cmd/kubeadm/app/cmd/phases/reset/BUILD

@@ -20,9 +20,9 @@ go_library(
         "//cmd/kubeadm/app/phases/etcd:go_default_library",
         "//cmd/kubeadm/app/phases/uploadconfig:go_default_library",
         "//cmd/kubeadm/app/preflight:go_default_library",
+        "//cmd/kubeadm/app/util/initsystem:go_default_library",
         "//cmd/kubeadm/app/util/runtime:go_default_library",
         "//cmd/kubeadm/app/util/staticpod:go_default_library",
-        "//pkg/util/initsystem:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
         "//staging/src/k8s.io/client-go/kubernetes:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",

cmd/kubeadm/app/cmd/phases/reset/cleanupnode.go

@@ -28,8 +28,8 @@ import (
 	"k8s.io/kubernetes/cmd/kubeadm/app/cmd/options"
 	"k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow"
 	kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
+	"k8s.io/kubernetes/cmd/kubeadm/app/util/initsystem"
 	utilruntime "k8s.io/kubernetes/cmd/kubeadm/app/util/runtime"
-	"k8s.io/kubernetes/pkg/util/initsystem"
 	utilsexec "k8s.io/utils/exec"
 )
 

cmd/kubeadm/app/phases/kubelet/BUILD

@@ -17,8 +17,8 @@ go_library(
         "//cmd/kubeadm/app/images:go_default_library",
         "//cmd/kubeadm/app/util:go_default_library",
         "//cmd/kubeadm/app/util/apiclient:go_default_library",
+        "//cmd/kubeadm/app/util/initsystem:go_default_library",
         "//pkg/kubelet/apis/config:go_default_library",
-        "//pkg/util/initsystem:go_default_library",
         "//pkg/util/node:go_default_library",
         "//pkg/util/procfs:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",

cmd/kubeadm/app/phases/kubelet/kubelet.go

@@ -19,7 +19,7 @@ package kubelet
 import (
 	"fmt"
 
-	"k8s.io/kubernetes/pkg/util/initsystem"
+	"k8s.io/kubernetes/cmd/kubeadm/app/util/initsystem"
 )
 
 // TryStartKubelet attempts to bring up kubelet service

cmd/kubeadm/app/preflight/BUILD

@@ -21,11 +21,11 @@ go_library(
         "//cmd/kubeadm/app/apis/kubeadm:go_default_library",
         "//cmd/kubeadm/app/constants:go_default_library",
         "//cmd/kubeadm/app/images:go_default_library",
+        "//cmd/kubeadm/app/util/initsystem:go_default_library",
         "//cmd/kubeadm/app/util/runtime:go_default_library",
         "//cmd/kubeadm/app/util/system:go_default_library",
         "//pkg/master/ports:go_default_library",
         "//pkg/registry/core/service/ipallocator:go_default_library",
-        "//pkg/util/initsystem:go_default_library",
         "//pkg/util/ipvs:go_default_library",
         "//pkg/version:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/net:go_default_library",

cmd/kubeadm/app/preflight/checks.go

@@ -44,11 +44,11 @@ import (
 	kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
 	kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
 	"k8s.io/kubernetes/cmd/kubeadm/app/images"
+	"k8s.io/kubernetes/cmd/kubeadm/app/util/initsystem"
 	utilruntime "k8s.io/kubernetes/cmd/kubeadm/app/util/runtime"
 	"k8s.io/kubernetes/cmd/kubeadm/app/util/system"
 	"k8s.io/kubernetes/pkg/master/ports"
 	"k8s.io/kubernetes/pkg/registry/core/service/ipallocator"
-	"k8s.io/kubernetes/pkg/util/initsystem"
 	ipvsutil "k8s.io/kubernetes/pkg/util/ipvs"
 	kubeadmversion "k8s.io/kubernetes/pkg/version"
 	utilsexec "k8s.io/utils/exec"

cmd/kubeadm/app/util/BUILD

@@ -84,6 +84,7 @@ filegroup(
         "//cmd/kubeadm/app/util/crypto:all-srcs",
         "//cmd/kubeadm/app/util/dryrun:all-srcs",
         "//cmd/kubeadm/app/util/etcd:all-srcs",
+        "//cmd/kubeadm/app/util/initsystem:all-srcs",
         "//cmd/kubeadm/app/util/kubeconfig:all-srcs",
         "//cmd/kubeadm/app/util/pkiutil:all-srcs",
         "//cmd/kubeadm/app/util/pubkeypin:all-srcs",

cmd/kubeadm/app/util/initsystem/BUILD

@@ -12,7 +12,7 @@ go_library(
         "initsystem_unix.go",
         "initsystem_windows.go",
     ],
-    importpath = "k8s.io/kubernetes/pkg/util/initsystem",
+    importpath = "k8s.io/kubernetes/cmd/kubeadm/app/util/initsystem",
     deps = select({
         "@io_bazel_rules_go//go/platform:windows": [
             "//vendor/golang.org/x/sys/windows/svc:go_default_library",

cmd/kubeadm/app/util/initsystem/initsystem.go

@@ -16,6 +16,7 @@ limitations under the License.
 
 package initsystem
 
+// InitSystem is the interface that describe behaviors of an init system
 type InitSystem interface {
 	// return a string describing how to enable a service
 	EnableCommand(service string) string

cmd/kubeadm/app/util/initsystem/initsystem_unix.go

@@ -24,23 +24,28 @@ import (
 	"strings"
 )
 
+// OpenRCInitSystem defines openrc
 type OpenRCInitSystem struct{}
 
+// ServiceStart tries to start a specific service
 func (openrc OpenRCInitSystem) ServiceStart(service string) error {
 	args := []string{service, "start"}
 	return exec.Command("rc-service", args...).Run()
 }
 
+// ServiceStop tries to stop a specific service
 func (openrc OpenRCInitSystem) ServiceStop(service string) error {
 	args := []string{service, "stop"}
 	return exec.Command("rc-service", args...).Run()
 }
 
+// ServiceRestart tries to reload the environment and restart the specific service
 func (openrc OpenRCInitSystem) ServiceRestart(service string) error {
 	args := []string{service, "restart"}
 	return exec.Command("rc-service", args...).Run()
 }
 
+// ServiceExists ensures the service is defined for this init system.
 // openrc writes to stderr if a service is not found or not enabled
 // this is in contrast to systemd which only writes to stdout.
 // Hence, we use the Combinedoutput, and ignore the error.
@@ -53,6 +58,7 @@ func (openrc OpenRCInitSystem) ServiceExists(service string) bool {
 	return true
 }
 
+// ServiceIsEnabled ensures the service is enabled to start on each boot.
 func (openrc OpenRCInitSystem) ServiceIsEnabled(service string) bool {
 	args := []string{"show", "default"}
 	outBytes, _ := exec.Command("rc-update", args...).Output()
@@ -62,6 +68,7 @@ func (openrc OpenRCInitSystem) ServiceIsEnabled(service string) bool {
 	return false
 }
 
+// ServiceIsActive ensures the service is running, or attempting to run. (crash looping in the case of kubelet)
 func (openrc OpenRCInitSystem) ServiceIsActive(service string) bool {
 	args := []string{service, "status"}
 	outBytes, _ := exec.Command("rc-service", args...).Output()
@@ -71,16 +78,20 @@ func (openrc OpenRCInitSystem) ServiceIsActive(service string) bool {
 	return true
 }
 
+// EnableCommand return a string describing how to enable a service
 func (openrc OpenRCInitSystem) EnableCommand(service string) string {
 	return fmt.Sprintf("rc-update add %s default", service)
 }
 
+// SystemdInitSystem defines systemd
 type SystemdInitSystem struct{}
 
+// EnableCommand return a string describing how to enable a service
 func (sysd SystemdInitSystem) EnableCommand(service string) string {
 	return fmt.Sprintf("systemctl enable %s.service", service)
 }
 
+// reloadSystemd reloeads the systemd daemon
 func (sysd SystemdInitSystem) reloadSystemd() error {
 	if err := exec.Command("systemctl", "daemon-reload").Run(); err != nil {
 		return fmt.Errorf("failed to reload systemd: %v", err)
@@ -88,6 +99,7 @@ func (sysd SystemdInitSystem) reloadSystemd() error {
 	return nil
 }
 
+// ServiceStart tries to start a specific service
 func (sysd SystemdInitSystem) ServiceStart(service string) error {
 	// Before we try to start any service, make sure that systemd is ready
 	if err := sysd.reloadSystemd(); err != nil {
@@ -97,6 +109,7 @@ func (sysd SystemdInitSystem) ServiceStart(service string) error {
 	return exec.Command("systemctl", args...).Run()
 }
 
+// ServiceRestart tries to reload the environment and restart the specific service
 func (sysd SystemdInitSystem) ServiceRestart(service string) error {
 	// Before we try to restart any service, make sure that systemd is ready
 	if err := sysd.reloadSystemd(); err != nil {
@@ -106,11 +119,13 @@ func (sysd SystemdInitSystem) ServiceRestart(service string) error {
 	return exec.Command("systemctl", args...).Run()
 }
 
+// ServiceStop tries to stop a specific service
 func (sysd SystemdInitSystem) ServiceStop(service string) error {
 	args := []string{"stop", service}
 	return exec.Command("systemctl", args...).Run()
 }
 
+// ServiceExists ensures the service is defined for this init system.
 func (sysd SystemdInitSystem) ServiceExists(service string) bool {
 	args := []string{"status", service}
 	outBytes, _ := exec.Command("systemctl", args...).Output()
@@ -121,6 +136,7 @@ func (sysd SystemdInitSystem) ServiceExists(service string) bool {
 	return true
 }
 
+// ServiceIsEnabled ensures the service is enabled to start on each boot.
 func (sysd SystemdInitSystem) ServiceIsEnabled(service string) bool {
 	args := []string{"is-enabled", service}
 	err := exec.Command("systemctl", args...).Run()

cmd/kubeadm/app/util/initsystem/initsystem_windows.go

@@ -29,10 +29,12 @@ import (
 // WindowsInitSystem is the windows implementation of InitSystem
 type WindowsInitSystem struct{}
 
+// EnableCommand return a string describing how to enable a service
 func (sysd WindowsInitSystem) EnableCommand(service string) string {
 	return fmt.Sprintf("Set-Service '%s' -StartupType Automatic", service)
 }
 
+// ServiceStart tries to start a specific service
 // Following Windows documentation: https://docs.microsoft.com/en-us/windows/desktop/Services/starting-a-service
 func (sysd WindowsInitSystem) ServiceStart(service string) error {
 	m, err := mgr.Connect()
@@ -94,6 +96,7 @@ func (sysd WindowsInitSystem) ServiceStart(service string) error {
 	return nil
 }
 
+// ServiceRestart tries to reload the environment and restart the specific service
 func (sysd WindowsInitSystem) ServiceRestart(service string) error {
 	if err := sysd.ServiceStop(service); err != nil {
 		return fmt.Errorf("couldn't stop service %s: %v", service, err)
@@ -105,6 +108,7 @@ func (sysd WindowsInitSystem) ServiceRestart(service string) error {
 	return nil
 }
 
+// ServiceStop tries to stop a specific service
 // Following Windows documentation: https://docs.microsoft.com/en-us/windows/desktop/Services/stopping-a-service
 func (sysd WindowsInitSystem) ServiceStop(service string) error {
 	m, err := mgr.Connect()
@@ -170,6 +174,7 @@ func (sysd WindowsInitSystem) ServiceStop(service string) error {
 	return nil
 }
 
+// ServiceExists ensures the service is defined for this init system.
 func (sysd WindowsInitSystem) ServiceExists(service string) bool {
 	m, err := mgr.Connect()
 	if err != nil {
@@ -185,6 +190,7 @@ func (sysd WindowsInitSystem) ServiceExists(service string) bool {
 	return true
 }
 
+// ServiceIsEnabled ensures the service is enabled to start on each boot.
 func (sysd WindowsInitSystem) ServiceIsEnabled(service string) bool {
 	m, err := mgr.Connect()
 	if err != nil {
@@ -206,6 +212,7 @@ func (sysd WindowsInitSystem) ServiceIsEnabled(service string) bool {
 	return c.StartType != mgr.StartDisabled
 }
 
+// ServiceIsActive ensures the service is running, or attempting to run. (crash looping in the case of kubelet)
 func (sysd WindowsInitSystem) ServiceIsActive(service string) bool {
 	m, err := mgr.Connect()
 	if err != nil {

hack/.golint_failures

@@ -284,7 +284,6 @@ pkg/util/config
 pkg/util/ebtables
 pkg/util/env
 pkg/util/goroutinemap/exponentialbackoff
-pkg/util/initsystem
 pkg/util/iptables
 pkg/util/iptables/testing
 pkg/util/labels

pkg/util/BUILD

@@ -25,7 +25,6 @@ filegroup(
         "//pkg/util/flock:all-srcs",
         "//pkg/util/goroutinemap:all-srcs",
         "//pkg/util/hash:all-srcs",
-        "//pkg/util/initsystem:all-srcs",
         "//pkg/util/interrupt:all-srcs",
         "//pkg/util/ipconfig:all-srcs",
         "//pkg/util/ipset:all-srcs",