github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-07-29 14:37:00 +00:00
Code Issues Projects Releases Wiki Activity
master
kubernetes/cmd/kubeadm/app/phases/controlplane/volumes_test.go

650 lines
18 KiB
Go
Raw Permalink Blame History

//go:build !windows
// +build !windows
/*
Copyright 2017 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 controlplane
import (
"fmt"
"os"
"path/filepath"
"reflect"
"testing"
"k8s.io/api/core/v1"
kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
)
func TestGetEtcdCertVolumes(t *testing.T) {
hostPathDirectoryOrCreate := v1.HostPathDirectoryOrCreate
k8sCertificatesDir := "/etc/kubernetes/pki"
var tests = []struct {
name, ca, cert, key string
vol []v1.Volume
volMount []v1.VolumeMount
}{
{
name: "Should ignore files in /etc/ssl/certs",
ca: "/etc/ssl/certs/my-etcd-ca.crt",
cert: "/etc/ssl/certs/my-etcd.crt",
key: "/etc/ssl/certs/my-etcd.key",
vol: []v1.Volume{},
volMount: []v1.VolumeMount{},
},
{
name: "Should ignore files in subdirs of /etc/ssl/certs",
ca: "/etc/ssl/certs/etcd/my-etcd-ca.crt",
cert: "/etc/ssl/certs/etcd/my-etcd.crt",
key: "/etc/ssl/certs/etcd/my-etcd.key",
vol: []v1.Volume{},
volMount: []v1.VolumeMount{},
},
{
name: "Should ignore files in /etc/pki",
ca: "/etc/pki/my-etcd-ca.crt",
cert: "/etc/pki/my-etcd.crt",
key: "/etc/pki/my-etcd.key",
vol: []v1.Volume{},
volMount: []v1.VolumeMount{},
},
{
name: "Should ignore files in Kubernetes PKI directory (and subdirs)",
ca: k8sCertificatesDir + "/ca/my-etcd-ca.crt",
cert: k8sCertificatesDir + "/my-etcd.crt",
key: k8sCertificatesDir + "/my-etcd.key",
vol: []v1.Volume{},
volMount: []v1.VolumeMount{},
},
{
name: "All certs are in the same dir",
ca: "/var/lib/certs/etcd/my-etcd-ca.crt",
cert: "/var/lib/certs/etcd/my-etcd.crt",
key: "/var/lib/certs/etcd/my-etcd.key",
vol: []v1.Volume{
{
Name: "etcd-certs-0",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/var/lib/certs/etcd",
Type: &hostPathDirectoryOrCreate,
},
},
},
},
volMount: []v1.VolumeMount{
{
Name: "etcd-certs-0",
MountPath: "/var/lib/certs/etcd",
ReadOnly: true,
},
},
},
{
name: "One file + two files in separate dirs",
ca: "/etc/certs/etcd/my-etcd-ca.crt",
cert: "/var/lib/certs/etcd/my-etcd.crt",
key: "/var/lib/certs/etcd/my-etcd.key",
vol: []v1.Volume{
{
Name: "etcd-certs-0",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/etc/certs/etcd",
Type: &hostPathDirectoryOrCreate,
},
},
},
{
Name: "etcd-certs-1",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/var/lib/certs/etcd",
Type: &hostPathDirectoryOrCreate,
},
},
},
},
volMount: []v1.VolumeMount{
{
Name: "etcd-certs-0",
MountPath: "/etc/certs/etcd",
ReadOnly: true,
},
{
Name: "etcd-certs-1",
MountPath: "/var/lib/certs/etcd",
ReadOnly: true,
},
},
},
{
name: "All three files in different directories",
ca: "/etc/certs/etcd/my-etcd-ca.crt",
cert: "/var/lib/certs/etcd/my-etcd.crt",
key: "/var/lib/certs/private/my-etcd.key",
vol: []v1.Volume{
{
Name: "etcd-certs-0",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/etc/certs/etcd",
Type: &hostPathDirectoryOrCreate,
},
},
},
{
Name: "etcd-certs-1",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/var/lib/certs/etcd",
Type: &hostPathDirectoryOrCreate,
},
},
},
{
Name: "etcd-certs-2",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/var/lib/certs/private",
Type: &hostPathDirectoryOrCreate,
},
},
},
},
volMount: []v1.VolumeMount{
{
Name: "etcd-certs-0",
MountPath: "/etc/certs/etcd",
ReadOnly: true,
},
{
Name: "etcd-certs-1",
MountPath: "/var/lib/certs/etcd",
ReadOnly: true,
},
{
Name: "etcd-certs-2",
MountPath: "/var/lib/certs/private",
ReadOnly: true,
},
},
},
{
name: "The most top-level dir should be used",
ca: "/etc/certs/etcd/my-etcd-ca.crt",
cert: "/etc/certs/etcd/serving/my-etcd.crt",
key: "/etc/certs/etcd/serving/my-etcd.key",
vol: []v1.Volume{
{
Name: "etcd-certs-0",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/etc/certs/etcd",
Type: &hostPathDirectoryOrCreate,
},
},
},
},
volMount: []v1.VolumeMount{
{
Name: "etcd-certs-0",
MountPath: "/etc/certs/etcd",
ReadOnly: true,
},
},
},
{
name: "The most top-level dir should be used, regardless of order",
ca: "/etc/certs/etcd/ca/my-etcd-ca.crt",
cert: "/etc/certs/etcd/my-etcd.crt",
key: "/etc/certs/etcd/my-etcd.key",
vol: []v1.Volume{
{
Name: "etcd-certs-0",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/etc/certs/etcd",
Type: &hostPathDirectoryOrCreate,
},
},
},
},
volMount: []v1.VolumeMount{
{
Name: "etcd-certs-0",
MountPath: "/etc/certs/etcd",
ReadOnly: true,
},
},
},
}
for _, rt := range tests {
t.Run(rt.name, func(t *testing.T) {
actualVol, actualVolMount := getEtcdCertVolumes(&kubeadmapi.ExternalEtcd{
CAFile: rt.ca,
CertFile: rt.cert,
KeyFile: rt.key,
}, k8sCertificatesDir)
if !reflect.DeepEqual(actualVol, rt.vol) {
t.Errorf(
"failed getEtcdCertVolumes:\n\texpected: %v\n\t actual: %v",
rt.vol,
actualVol,
)
}
if !reflect.DeepEqual(actualVolMount, rt.volMount) {
t.Errorf(
"failed getEtcdCertVolumes:\n\texpected: %v\n\t actual: %v",
rt.volMount,
actualVolMount,
)
}
})
}
}
func TestGetHostPathVolumesForTheControlPlane(t *testing.T) {
hostPathDirectoryOrCreate := v1.HostPathDirectoryOrCreate
hostPathFileOrCreate := v1.HostPathFileOrCreate
controllerManagerConfig := filepath.FromSlash("/etc/kubernetes/controller-manager.conf")
schedulerConfig := filepath.FromSlash("/etc/kubernetes/scheduler.conf")
volMap := make(map[string]map[string]v1.Volume)
volMap[kubeadmconstants.KubeAPIServer] = map[string]v1.Volume{}
volMap[kubeadmconstants.KubeAPIServer]["k8s-certs"] = v1.Volume{
Name: "k8s-certs",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: testCertsDir,
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap[kubeadmconstants.KubeAPIServer]["ca-certs"] = v1.Volume{
Name: "ca-certs",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/etc/ssl/certs",
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap[kubeadmconstants.KubeControllerManager] = map[string]v1.Volume{}
volMap[kubeadmconstants.KubeControllerManager]["k8s-certs"] = v1.Volume{
Name: "k8s-certs",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: testCertsDir,
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap[kubeadmconstants.KubeControllerManager]["ca-certs"] = v1.Volume{
Name: "ca-certs",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/etc/ssl/certs",
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap[kubeadmconstants.KubeControllerManager]["kubeconfig"] = v1.Volume{
Name: "kubeconfig",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: controllerManagerConfig,
Type: &hostPathFileOrCreate,
},
},
}
volMap[kubeadmconstants.KubeScheduler] = map[string]v1.Volume{}
volMap[kubeadmconstants.KubeScheduler]["kubeconfig"] = v1.Volume{
Name: "kubeconfig",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: schedulerConfig,
Type: &hostPathFileOrCreate,
},
},
}
volMountMap := make(map[string]map[string]v1.VolumeMount)
volMountMap[kubeadmconstants.KubeAPIServer] = map[string]v1.VolumeMount{}
volMountMap[kubeadmconstants.KubeAPIServer]["k8s-certs"] = v1.VolumeMount{
Name: "k8s-certs",
MountPath: testCertsDir,
ReadOnly: true,
}
volMountMap[kubeadmconstants.KubeAPIServer]["ca-certs"] = v1.VolumeMount{
Name: "ca-certs",
MountPath: "/etc/ssl/certs",
ReadOnly: true,
}
volMountMap[kubeadmconstants.KubeControllerManager] = map[string]v1.VolumeMount{}
volMountMap[kubeadmconstants.KubeControllerManager]["k8s-certs"] = v1.VolumeMount{
Name: "k8s-certs",
MountPath: testCertsDir,
ReadOnly: true,
}
volMountMap[kubeadmconstants.KubeControllerManager]["ca-certs"] = v1.VolumeMount{
Name: "ca-certs",
MountPath: "/etc/ssl/certs",
ReadOnly: true,
}
volMountMap[kubeadmconstants.KubeControllerManager]["kubeconfig"] = v1.VolumeMount{
Name: "kubeconfig",
MountPath: controllerManagerConfig,
ReadOnly: true,
}
volMountMap[kubeadmconstants.KubeScheduler] = map[string]v1.VolumeMount{}
volMountMap[kubeadmconstants.KubeScheduler]["kubeconfig"] = v1.VolumeMount{
Name: "kubeconfig",
MountPath: schedulerConfig,
ReadOnly: true,
}
volMap2 := make(map[string]map[string]v1.Volume)
volMap2[kubeadmconstants.KubeAPIServer] = map[string]v1.Volume{}
volMap2[kubeadmconstants.KubeAPIServer]["k8s-certs"] = v1.Volume{
Name: "k8s-certs",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: testCertsDir,
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap2[kubeadmconstants.KubeAPIServer]["ca-certs"] = v1.Volume{
Name: "ca-certs",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/etc/ssl/certs",
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap2[kubeadmconstants.KubeAPIServer]["etcd-certs-0"] = v1.Volume{
Name: "etcd-certs-0",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/etc/certs/etcd",
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap2[kubeadmconstants.KubeAPIServer]["etcd-certs-1"] = v1.Volume{
Name: "etcd-certs-1",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/var/lib/etcd/certs",
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap2[kubeadmconstants.KubeControllerManager] = map[string]v1.Volume{}
volMap2[kubeadmconstants.KubeControllerManager]["k8s-certs"] = v1.Volume{
Name: "k8s-certs",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: testCertsDir,
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap2[kubeadmconstants.KubeControllerManager]["ca-certs"] = v1.Volume{
Name: "ca-certs",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/etc/ssl/certs",
Type: &hostPathDirectoryOrCreate,
},
},
}
volMap2[kubeadmconstants.KubeControllerManager]["kubeconfig"] = v1.Volume{
Name: "kubeconfig",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: controllerManagerConfig,
Type: &hostPathFileOrCreate,
},
},
}
volMap2[kubeadmconstants.KubeScheduler] = map[string]v1.Volume{}
volMap2[kubeadmconstants.KubeScheduler]["kubeconfig"] = v1.Volume{
Name: "kubeconfig",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: schedulerConfig,
Type: &hostPathFileOrCreate,
},
},
}
volMountMap2 := make(map[string]map[string]v1.VolumeMount)
volMountMap2[kubeadmconstants.KubeAPIServer] = map[string]v1.VolumeMount{}
volMountMap2[kubeadmconstants.KubeAPIServer]["k8s-certs"] = v1.VolumeMount{
Name: "k8s-certs",
MountPath: testCertsDir,
ReadOnly: true,
}
volMountMap2[kubeadmconstants.KubeAPIServer]["ca-certs"] = v1.VolumeMount{
Name: "ca-certs",
MountPath: "/etc/ssl/certs",
ReadOnly: true,
}
volMountMap2[kubeadmconstants.KubeAPIServer]["etcd-certs-0"] = v1.VolumeMount{
Name: "etcd-certs-0",
MountPath: "/etc/certs/etcd",
ReadOnly: true,
}
volMountMap2[kubeadmconstants.KubeAPIServer]["etcd-certs-1"] = v1.VolumeMount{
Name: "etcd-certs-1",
MountPath: "/var/lib/etcd/certs",
ReadOnly: true,
}
volMountMap2[kubeadmconstants.KubeControllerManager] = map[string]v1.VolumeMount{}
volMountMap2[kubeadmconstants.KubeControllerManager]["k8s-certs"] = v1.VolumeMount{
Name: "k8s-certs",
MountPath: testCertsDir,
ReadOnly: true,
}
volMountMap2[kubeadmconstants.KubeControllerManager]["ca-certs"] = v1.VolumeMount{
Name: "ca-certs",
MountPath: "/etc/ssl/certs",
ReadOnly: true,
}
volMountMap2[kubeadmconstants.KubeControllerManager]["kubeconfig"] = v1.VolumeMount{
Name: "kubeconfig",
MountPath: controllerManagerConfig,
ReadOnly: true,
}
volMountMap2[kubeadmconstants.KubeScheduler] = map[string]v1.VolumeMount{}
volMountMap2[kubeadmconstants.KubeScheduler]["kubeconfig"] = v1.VolumeMount{
Name: "kubeconfig",
MountPath: schedulerConfig,
ReadOnly: true,
}
var tests = []struct {
name string
cfg *kubeadmapi.ClusterConfiguration
vol map[string]map[string]v1.Volume
volMount map[string]map[string]v1.VolumeMount
}{
{
name: "Should ignore files in /etc/ssl/certs",
cfg: &kubeadmapi.ClusterConfiguration{
CertificatesDir: testCertsDir,
Etcd: kubeadmapi.Etcd{},
},
vol: volMap,
volMount: volMountMap,
},
{
name: "Should ignore files in /etc/ssl/certs and in CertificatesDir",
cfg: &kubeadmapi.ClusterConfiguration{
CertificatesDir: testCertsDir,
Etcd: kubeadmapi.Etcd{
External: &kubeadmapi.ExternalEtcd{
Endpoints: []string{"foo"},
CAFile: "/etc/certs/etcd/my-etcd-ca.crt",
CertFile: testCertsDir + "/etcd/my-etcd.crt",
KeyFile: "/var/lib/etcd/certs/my-etcd.key",
},
},
},
vol: volMap2,
volMount: volMountMap2,
},
}
tmpdir, err := os.MkdirTemp("", "")
if err != nil {
t.Fatalf("Couldn't create tmpdir")
}
defer os.RemoveAll(tmpdir)
// set up tmp caCertsExtraVolumePaths for testing
caCertsExtraVolumePaths = []string{fmt.Sprintf("%s/etc/pki", tmpdir), fmt.Sprintf("%s/usr/share/ca-certificates", tmpdir)}
defer func() { caCertsExtraVolumePaths = []string{"/etc/pki", "/usr/share/ca-certificates"} }()
for _, rt := range tests {
t.Run(rt.name, func(t *testing.T) {
mounts := getHostPathVolumesForTheControlPlane(rt.cfg)
// Avoid unit test errors when the flexvolume is mounted
delete(mounts.volumes[kubeadmconstants.KubeControllerManager], flexvolumeDirVolumeName)
delete(mounts.volumeMounts[kubeadmconstants.KubeControllerManager], flexvolumeDirVolumeName)
if !reflect.DeepEqual(mounts.volumes, rt.vol) {
t.Errorf(
"failed getHostPathVolumesForTheControlPlane:\n\texpected: %v\n\t actual: %v",
rt.vol,
mounts.volumes,
)
}
if !reflect.DeepEqual(mounts.volumeMounts, rt.volMount) {
t.Errorf(
"failed getHostPathVolumesForTheControlPlane:\n\texpected: %v\n\t actual: %v",
rt.volMount,
mounts.volumeMounts,
)
}
})
}
}
func TestAddExtraHostPathMounts(t *testing.T) {
mounts := newControlPlaneHostPathMounts()
hostPathDirectoryOrCreate := v1.HostPathDirectoryOrCreate
hostPathFileOrCreate := v1.HostPathFileOrCreate
vols := []v1.Volume{
{
Name: "foo",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/tmp/foo",
Type: &hostPathDirectoryOrCreate,
},
},
},
{
Name: "bar",
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/tmp/bar",
Type: &hostPathFileOrCreate,
},
},
},
}
volMounts := []v1.VolumeMount{
{
Name: "foo",
MountPath: "/tmp/foo",
ReadOnly: true,
},
{
Name: "bar",
MountPath: "/tmp/bar",
ReadOnly: true,
},
}
mounts.AddHostPathMounts("component", vols, volMounts)
hostPathMounts := []kubeadmapi.HostPathMount{
{
Name: "foo-0",
HostPath: "/tmp/qux-0",
MountPath: "/tmp/qux-0",
ReadOnly: true,
PathType: v1.HostPathFile,
},
{
Name: "bar-0",
HostPath: "/tmp/asd-0",
MountPath: "/tmp/asd-0",
ReadOnly: false,
PathType: v1.HostPathDirectory,
},
{
Name: "foo-1",
HostPath: "/tmp/qux-1",
MountPath: "/tmp/qux-1",
ReadOnly: true,
PathType: v1.HostPathFileOrCreate,
},
{
Name: "bar-1",
HostPath: "/tmp/asd-1",
MountPath: "/tmp/asd-1",
ReadOnly: false,
PathType: v1.HostPathDirectoryOrCreate,
},
}
mounts.AddExtraHostPathMounts("component", hostPathMounts)
for _, hostMount := range hostPathMounts {
t.Run(hostMount.Name, func(t *testing.T) {
volumeName := hostMount.Name
if _, ok := mounts.volumes["component"][volumeName]; !ok {
t.Errorf("Expected to find volume %q", volumeName)
}
vol := mounts.volumes["component"][volumeName]
if vol.Name != volumeName {
t.Errorf("Expected volume name %q", volumeName)
}
if vol.HostPath.Path != hostMount.HostPath {
t.Errorf("Expected host path %q", hostMount.HostPath)
}
if _, ok := mounts.volumeMounts["component"][volumeName]; !ok {
t.Errorf("Expected to find volume mount %q", volumeName)
}
if *vol.HostPath.Type != v1.HostPathType(hostMount.PathType) {
t.Errorf("Expected to host path type %q", hostMount.PathType)
}
volMount := mounts.volumeMounts["component"][volumeName]
if volMount.Name != volumeName {
t.Errorf("Expected volume mount name %q", volumeName)
}
if volMount.MountPath != hostMount.MountPath {
t.Errorf("Expected container path %q", hostMount.MountPath)
}
if volMount.ReadOnly != hostMount.ReadOnly {
t.Errorf("Expected volume readOnly setting %t", hostMount.ReadOnly)
}
})
}
}
Reference in New Issue View Git Blame Copy Permalink