1640 lines
53 KiB
Go
1640 lines
53 KiB
Go
/*
|
|
Copyright The containerd 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 server
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"reflect"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/container-orchestrated-devices/container-device-interface/pkg/cdi"
|
|
"github.com/containerd/containerd"
|
|
"github.com/containerd/containerd/containers"
|
|
"github.com/containerd/containerd/contrib/apparmor"
|
|
"github.com/containerd/containerd/contrib/seccomp"
|
|
"github.com/containerd/containerd/mount"
|
|
"github.com/containerd/containerd/oci"
|
|
imagespec "github.com/opencontainers/image-spec/specs-go/v1"
|
|
runtimespec "github.com/opencontainers/runtime-spec/specs-go"
|
|
"github.com/opencontainers/selinux/go-selinux"
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
|
|
|
|
"github.com/containerd/containerd/pkg/cap"
|
|
"github.com/containerd/containerd/pkg/cri/annotations"
|
|
"github.com/containerd/containerd/pkg/cri/config"
|
|
"github.com/containerd/containerd/pkg/cri/opts"
|
|
"github.com/containerd/containerd/pkg/cri/util"
|
|
ctrdutil "github.com/containerd/containerd/pkg/cri/util"
|
|
ostesting "github.com/containerd/containerd/pkg/os/testing"
|
|
)
|
|
|
|
func getCreateContainerTestData() (*runtime.ContainerConfig, *runtime.PodSandboxConfig,
|
|
*imagespec.ImageConfig, func(*testing.T, string, string, uint32, *runtimespec.Spec)) {
|
|
config := &runtime.ContainerConfig{
|
|
Metadata: &runtime.ContainerMetadata{
|
|
Name: "test-name",
|
|
Attempt: 1,
|
|
},
|
|
Image: &runtime.ImageSpec{
|
|
Image: "sha256:c75bebcdd211f41b3a460c7bf82970ed6c75acaab9cd4c9a4e125b03ca113799",
|
|
},
|
|
Command: []string{"test", "command"},
|
|
Args: []string{"test", "args"},
|
|
WorkingDir: "test-cwd",
|
|
Envs: []*runtime.KeyValue{
|
|
{Key: "k1", Value: "v1"},
|
|
{Key: "k2", Value: "v2"},
|
|
{Key: "k3", Value: "v3=v3bis"},
|
|
{Key: "k4", Value: "v4=v4bis=foop"},
|
|
},
|
|
Mounts: []*runtime.Mount{
|
|
// everything default
|
|
{
|
|
ContainerPath: "container-path-1",
|
|
HostPath: "host-path-1",
|
|
},
|
|
// readOnly
|
|
{
|
|
ContainerPath: "container-path-2",
|
|
HostPath: "host-path-2",
|
|
Readonly: true,
|
|
},
|
|
},
|
|
Labels: map[string]string{"a": "b"},
|
|
Annotations: map[string]string{"ca-c": "ca-d"},
|
|
Linux: &runtime.LinuxContainerConfig{
|
|
Resources: &runtime.LinuxContainerResources{
|
|
CpuPeriod: 100,
|
|
CpuQuota: 200,
|
|
CpuShares: 300,
|
|
MemoryLimitInBytes: 400,
|
|
OomScoreAdj: 500,
|
|
CpusetCpus: "0-1",
|
|
CpusetMems: "2-3",
|
|
Unified: map[string]string{"memory.min": "65536", "memory.swap.max": "1024"},
|
|
},
|
|
SecurityContext: &runtime.LinuxContainerSecurityContext{
|
|
SupplementalGroups: []int64{1111, 2222},
|
|
NoNewPrivs: true,
|
|
},
|
|
},
|
|
}
|
|
sandboxConfig := &runtime.PodSandboxConfig{
|
|
Metadata: &runtime.PodSandboxMetadata{
|
|
Name: "test-sandbox-name",
|
|
Uid: "test-sandbox-uid",
|
|
Namespace: "test-sandbox-ns",
|
|
Attempt: 2,
|
|
},
|
|
Annotations: map[string]string{"c": "d"},
|
|
Linux: &runtime.LinuxPodSandboxConfig{
|
|
CgroupParent: "/test/cgroup/parent",
|
|
SecurityContext: &runtime.LinuxSandboxSecurityContext{},
|
|
},
|
|
}
|
|
imageConfig := &imagespec.ImageConfig{
|
|
Env: []string{"ik1=iv1", "ik2=iv2", "ik3=iv3=iv3bis", "ik4=iv4=iv4bis=boop"},
|
|
Entrypoint: []string{"/entrypoint"},
|
|
Cmd: []string{"cmd"},
|
|
WorkingDir: "/workspace",
|
|
}
|
|
specCheck := func(t *testing.T, id string, sandboxID string, sandboxPid uint32, spec *runtimespec.Spec) {
|
|
assert.Equal(t, relativeRootfsPath, spec.Root.Path)
|
|
assert.Equal(t, []string{"test", "command", "test", "args"}, spec.Process.Args)
|
|
assert.Equal(t, "test-cwd", spec.Process.Cwd)
|
|
assert.Contains(t, spec.Process.Env, "k1=v1", "k2=v2", "k3=v3=v3bis", "ik4=iv4=iv4bis=boop")
|
|
assert.Contains(t, spec.Process.Env, "ik1=iv1", "ik2=iv2", "ik3=iv3=iv3bis", "k4=v4=v4bis=foop")
|
|
|
|
t.Logf("Check cgroups bind mount")
|
|
checkMount(t, spec.Mounts, "cgroup", "/sys/fs/cgroup", "cgroup", []string{"ro"}, nil)
|
|
|
|
t.Logf("Check bind mount")
|
|
checkMount(t, spec.Mounts, "host-path-1", "container-path-1", "bind", []string{"rbind", "rprivate", "rw"}, nil)
|
|
checkMount(t, spec.Mounts, "host-path-2", "container-path-2", "bind", []string{"rbind", "rprivate", "ro"}, nil)
|
|
|
|
t.Logf("Check resource limits")
|
|
assert.EqualValues(t, *spec.Linux.Resources.CPU.Period, 100)
|
|
assert.EqualValues(t, *spec.Linux.Resources.CPU.Quota, 200)
|
|
assert.EqualValues(t, *spec.Linux.Resources.CPU.Shares, 300)
|
|
assert.EqualValues(t, spec.Linux.Resources.CPU.Cpus, "0-1")
|
|
assert.EqualValues(t, spec.Linux.Resources.CPU.Mems, "2-3")
|
|
assert.EqualValues(t, spec.Linux.Resources.Unified, map[string]string{"memory.min": "65536", "memory.swap.max": "1024"})
|
|
assert.EqualValues(t, *spec.Linux.Resources.Memory.Limit, 400)
|
|
assert.EqualValues(t, *spec.Process.OOMScoreAdj, 500)
|
|
|
|
t.Logf("Check supplemental groups")
|
|
assert.Contains(t, spec.Process.User.AdditionalGids, uint32(1111))
|
|
assert.Contains(t, spec.Process.User.AdditionalGids, uint32(2222))
|
|
|
|
t.Logf("Check no_new_privs")
|
|
assert.Equal(t, spec.Process.NoNewPrivileges, true)
|
|
|
|
t.Logf("Check cgroup path")
|
|
assert.Equal(t, getCgroupsPath("/test/cgroup/parent", id), spec.Linux.CgroupsPath)
|
|
|
|
t.Logf("Check namespaces")
|
|
assert.Contains(t, spec.Linux.Namespaces, runtimespec.LinuxNamespace{
|
|
Type: runtimespec.NetworkNamespace,
|
|
Path: opts.GetNetworkNamespace(sandboxPid),
|
|
})
|
|
assert.Contains(t, spec.Linux.Namespaces, runtimespec.LinuxNamespace{
|
|
Type: runtimespec.IPCNamespace,
|
|
Path: opts.GetIPCNamespace(sandboxPid),
|
|
})
|
|
assert.Contains(t, spec.Linux.Namespaces, runtimespec.LinuxNamespace{
|
|
Type: runtimespec.UTSNamespace,
|
|
Path: opts.GetUTSNamespace(sandboxPid),
|
|
})
|
|
assert.Contains(t, spec.Linux.Namespaces, runtimespec.LinuxNamespace{
|
|
Type: runtimespec.PIDNamespace,
|
|
Path: opts.GetPIDNamespace(sandboxPid),
|
|
})
|
|
|
|
t.Logf("Check PodSandbox annotations")
|
|
assert.Contains(t, spec.Annotations, annotations.SandboxID)
|
|
assert.EqualValues(t, spec.Annotations[annotations.SandboxID], sandboxID)
|
|
|
|
assert.Contains(t, spec.Annotations, annotations.ContainerType)
|
|
assert.EqualValues(t, spec.Annotations[annotations.ContainerType], annotations.ContainerTypeContainer)
|
|
|
|
assert.Contains(t, spec.Annotations, annotations.SandboxNamespace)
|
|
assert.EqualValues(t, spec.Annotations[annotations.SandboxNamespace], "test-sandbox-ns")
|
|
|
|
assert.Contains(t, spec.Annotations, annotations.SandboxName)
|
|
assert.EqualValues(t, spec.Annotations[annotations.SandboxName], "test-sandbox-name")
|
|
|
|
assert.Contains(t, spec.Annotations, annotations.ImageName)
|
|
assert.EqualValues(t, spec.Annotations[annotations.ImageName], testImageName)
|
|
}
|
|
return config, sandboxConfig, imageConfig, specCheck
|
|
}
|
|
|
|
func TestContainerCapabilities(t *testing.T) {
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
allCaps := cap.Known()
|
|
for desc, test := range map[string]struct {
|
|
capability *runtime.Capability
|
|
includes []string
|
|
excludes []string
|
|
}{
|
|
"should be able to add/drop capabilities": {
|
|
capability: &runtime.Capability{
|
|
AddCapabilities: []string{"SYS_ADMIN"},
|
|
DropCapabilities: []string{"CHOWN"},
|
|
},
|
|
includes: []string{"CAP_SYS_ADMIN"},
|
|
excludes: []string{"CAP_CHOWN"},
|
|
},
|
|
"should be able to add all capabilities": {
|
|
capability: &runtime.Capability{
|
|
AddCapabilities: []string{"ALL"},
|
|
},
|
|
includes: allCaps,
|
|
},
|
|
"should be able to drop all capabilities": {
|
|
capability: &runtime.Capability{
|
|
DropCapabilities: []string{"ALL"},
|
|
},
|
|
excludes: allCaps,
|
|
},
|
|
"should be able to drop capabilities with add all": {
|
|
capability: &runtime.Capability{
|
|
AddCapabilities: []string{"ALL"},
|
|
DropCapabilities: []string{"CHOWN"},
|
|
},
|
|
includes: util.SubtractStringSlice(allCaps, "CAP_CHOWN"),
|
|
excludes: []string{"CAP_CHOWN"},
|
|
},
|
|
"should be able to add capabilities with drop all": {
|
|
capability: &runtime.Capability{
|
|
AddCapabilities: []string{"SYS_ADMIN"},
|
|
DropCapabilities: []string{"ALL"},
|
|
},
|
|
includes: []string{"CAP_SYS_ADMIN"},
|
|
excludes: util.SubtractStringSlice(allCaps, "CAP_SYS_ADMIN"),
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
c.allCaps = allCaps
|
|
|
|
containerConfig.Linux.SecurityContext.Capabilities = test.capability
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
require.NoError(t, err)
|
|
|
|
if selinux.GetEnabled() {
|
|
assert.NotEqual(t, "", spec.Process.SelinuxLabel)
|
|
assert.NotEqual(t, "", spec.Linux.MountLabel)
|
|
}
|
|
|
|
specCheck(t, testID, testSandboxID, testPid, spec)
|
|
for _, include := range test.includes {
|
|
assert.Contains(t, spec.Process.Capabilities.Bounding, include)
|
|
assert.Contains(t, spec.Process.Capabilities.Effective, include)
|
|
assert.Contains(t, spec.Process.Capabilities.Permitted, include)
|
|
}
|
|
for _, exclude := range test.excludes {
|
|
assert.NotContains(t, spec.Process.Capabilities.Bounding, exclude)
|
|
assert.NotContains(t, spec.Process.Capabilities.Effective, exclude)
|
|
assert.NotContains(t, spec.Process.Capabilities.Permitted, exclude)
|
|
}
|
|
assert.Empty(t, spec.Process.Capabilities.Inheritable)
|
|
assert.Empty(t, spec.Process.Capabilities.Ambient)
|
|
}
|
|
}
|
|
|
|
func TestContainerSpecTty(t *testing.T) {
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
for _, tty := range []bool{true, false} {
|
|
containerConfig.Tty = tty
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
require.NoError(t, err)
|
|
specCheck(t, testID, testSandboxID, testPid, spec)
|
|
assert.Equal(t, tty, spec.Process.Terminal)
|
|
if tty {
|
|
assert.Contains(t, spec.Process.Env, "TERM=xterm")
|
|
} else {
|
|
assert.NotContains(t, spec.Process.Env, "TERM=xterm")
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestContainerSpecDefaultPath(t *testing.T) {
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
expectedDefault := "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
|
|
containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
for _, pathenv := range []string{"", "PATH=/usr/local/bin/games"} {
|
|
expected := expectedDefault
|
|
if pathenv != "" {
|
|
imageConfig.Env = append(imageConfig.Env, pathenv)
|
|
expected = pathenv
|
|
}
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
require.NoError(t, err)
|
|
specCheck(t, testID, testSandboxID, testPid, spec)
|
|
assert.Contains(t, spec.Process.Env, expected)
|
|
}
|
|
}
|
|
|
|
func TestContainerSpecReadonlyRootfs(t *testing.T) {
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
for _, readonly := range []bool{true, false} {
|
|
containerConfig.Linux.SecurityContext.ReadonlyRootfs = readonly
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
require.NoError(t, err)
|
|
specCheck(t, testID, testSandboxID, testPid, spec)
|
|
assert.Equal(t, readonly, spec.Root.Readonly)
|
|
}
|
|
}
|
|
|
|
func TestContainerSpecWithExtraMounts(t *testing.T) {
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
mountInConfig := &runtime.Mount{
|
|
// Test cleanpath
|
|
ContainerPath: "test-container-path/",
|
|
HostPath: "test-host-path",
|
|
Readonly: false,
|
|
}
|
|
containerConfig.Mounts = append(containerConfig.Mounts, mountInConfig)
|
|
extraMounts := []*runtime.Mount{
|
|
{
|
|
ContainerPath: "test-container-path",
|
|
HostPath: "test-host-path-extra",
|
|
Readonly: true,
|
|
},
|
|
{
|
|
ContainerPath: "/sys",
|
|
HostPath: "test-sys-extra",
|
|
Readonly: false,
|
|
},
|
|
{
|
|
ContainerPath: "/dev",
|
|
HostPath: "test-dev-extra",
|
|
Readonly: false,
|
|
},
|
|
}
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, extraMounts, ociRuntime)
|
|
require.NoError(t, err)
|
|
specCheck(t, testID, testSandboxID, testPid, spec)
|
|
var mounts, sysMounts, devMounts []runtimespec.Mount
|
|
for _, m := range spec.Mounts {
|
|
if strings.HasPrefix(m.Destination, "test-container-path") {
|
|
mounts = append(mounts, m)
|
|
} else if m.Destination == "/sys" {
|
|
sysMounts = append(sysMounts, m)
|
|
} else if strings.HasPrefix(m.Destination, "/dev") {
|
|
devMounts = append(devMounts, m)
|
|
}
|
|
}
|
|
t.Logf("CRI mount should override extra mount")
|
|
require.Len(t, mounts, 1)
|
|
assert.Equal(t, "test-host-path", mounts[0].Source)
|
|
assert.Contains(t, mounts[0].Options, "rw")
|
|
|
|
t.Logf("Extra mount should override default mount")
|
|
require.Len(t, sysMounts, 1)
|
|
assert.Equal(t, "test-sys-extra", sysMounts[0].Source)
|
|
assert.Contains(t, sysMounts[0].Options, "rw")
|
|
|
|
t.Logf("Dev mount should override all default dev mounts")
|
|
require.Len(t, devMounts, 1)
|
|
assert.Equal(t, "test-dev-extra", devMounts[0].Source)
|
|
assert.Contains(t, devMounts[0].Options, "rw")
|
|
}
|
|
|
|
func TestContainerAndSandboxPrivileged(t *testing.T) {
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
containerConfig, sandboxConfig, imageConfig, _ := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
for desc, test := range map[string]struct {
|
|
containerPrivileged bool
|
|
sandboxPrivileged bool
|
|
expectError bool
|
|
}{
|
|
"privileged container in non-privileged sandbox should fail": {
|
|
containerPrivileged: true,
|
|
sandboxPrivileged: false,
|
|
expectError: true,
|
|
},
|
|
"privileged container in privileged sandbox should be fine": {
|
|
containerPrivileged: true,
|
|
sandboxPrivileged: true,
|
|
expectError: false,
|
|
},
|
|
"non-privileged container in privileged sandbox should be fine": {
|
|
containerPrivileged: false,
|
|
sandboxPrivileged: true,
|
|
expectError: false,
|
|
},
|
|
"non-privileged container in non-privileged sandbox should be fine": {
|
|
containerPrivileged: false,
|
|
sandboxPrivileged: false,
|
|
expectError: false,
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
containerConfig.Linux.SecurityContext.Privileged = test.containerPrivileged
|
|
sandboxConfig.Linux.SecurityContext = &runtime.LinuxSandboxSecurityContext{
|
|
Privileged: test.sandboxPrivileged,
|
|
}
|
|
_, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
if test.expectError {
|
|
assert.Error(t, err)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestContainerMounts(t *testing.T) {
|
|
const testSandboxID = "test-id"
|
|
for desc, test := range map[string]struct {
|
|
statFn func(string) (os.FileInfo, error)
|
|
criMounts []*runtime.Mount
|
|
securityContext *runtime.LinuxContainerSecurityContext
|
|
expectedMounts []*runtime.Mount
|
|
}{
|
|
"should setup ro mount when rootfs is read-only": {
|
|
securityContext: &runtime.LinuxContainerSecurityContext{
|
|
ReadonlyRootfs: true,
|
|
},
|
|
expectedMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hostname",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hostname"),
|
|
Readonly: true,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hosts"),
|
|
Readonly: true,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "resolv.conf"),
|
|
Readonly: true,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: filepath.Join(testStateDir, sandboxesDir, testSandboxID, "shm"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
},
|
|
},
|
|
"should setup rw mount when rootfs is read-write": {
|
|
securityContext: &runtime.LinuxContainerSecurityContext{},
|
|
expectedMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hostname",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hostname"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hosts"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "resolv.conf"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: filepath.Join(testStateDir, sandboxesDir, testSandboxID, "shm"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
},
|
|
},
|
|
"should use host /dev/shm when host ipc is set": {
|
|
securityContext: &runtime.LinuxContainerSecurityContext{
|
|
NamespaceOptions: &runtime.NamespaceOption{Ipc: runtime.NamespaceMode_NODE},
|
|
},
|
|
expectedMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hostname",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hostname"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hosts"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "resolv.conf"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: "/dev/shm",
|
|
Readonly: false,
|
|
},
|
|
},
|
|
},
|
|
"should skip container mounts if already mounted by CRI": {
|
|
criMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hostname",
|
|
HostPath: "/test-etc-hostname",
|
|
},
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: "/test-etc-host",
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: "test-resolv-conf",
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: "test-dev-shm",
|
|
},
|
|
},
|
|
securityContext: &runtime.LinuxContainerSecurityContext{},
|
|
expectedMounts: nil,
|
|
},
|
|
"should skip hostname mount if the old sandbox doesn't have hostname file": {
|
|
statFn: func(path string) (os.FileInfo, error) {
|
|
assert.Equal(t, filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hostname"), path)
|
|
return nil, errors.New("random error")
|
|
},
|
|
securityContext: &runtime.LinuxContainerSecurityContext{},
|
|
expectedMounts: []*runtime.Mount{
|
|
{
|
|
ContainerPath: "/etc/hosts",
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "hosts"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: resolvConfPath,
|
|
HostPath: filepath.Join(testRootDir, sandboxesDir, testSandboxID, "resolv.conf"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
{
|
|
ContainerPath: "/dev/shm",
|
|
HostPath: filepath.Join(testStateDir, sandboxesDir, testSandboxID, "shm"),
|
|
Readonly: false,
|
|
SelinuxRelabel: true,
|
|
},
|
|
},
|
|
},
|
|
} {
|
|
config := &runtime.ContainerConfig{
|
|
Metadata: &runtime.ContainerMetadata{
|
|
Name: "test-name",
|
|
Attempt: 1,
|
|
},
|
|
Mounts: test.criMounts,
|
|
Linux: &runtime.LinuxContainerConfig{
|
|
SecurityContext: test.securityContext,
|
|
},
|
|
}
|
|
c := newTestCRIService()
|
|
c.os.(*ostesting.FakeOS).StatFn = test.statFn
|
|
mounts := c.containerMounts(testSandboxID, config)
|
|
assert.Equal(t, test.expectedMounts, mounts, desc)
|
|
}
|
|
}
|
|
|
|
func TestPrivilegedBindMount(t *testing.T) {
|
|
testPid := uint32(1234)
|
|
c := newTestCRIService()
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
containerConfig, sandboxConfig, imageConfig, _ := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
|
|
for desc, test := range map[string]struct {
|
|
privileged bool
|
|
expectedSysFSRO bool
|
|
expectedCgroupFSRO bool
|
|
}{
|
|
"sysfs and cgroupfs should mount as 'ro' by default": {
|
|
expectedSysFSRO: true,
|
|
expectedCgroupFSRO: true,
|
|
},
|
|
"sysfs and cgroupfs should not mount as 'ro' if privileged": {
|
|
privileged: true,
|
|
expectedSysFSRO: false,
|
|
expectedCgroupFSRO: false,
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
|
|
containerConfig.Linux.SecurityContext.Privileged = test.privileged
|
|
sandboxConfig.Linux.SecurityContext.Privileged = test.privileged
|
|
|
|
spec, err := c.containerSpec(t.Name(), testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
|
|
assert.NoError(t, err)
|
|
if test.expectedSysFSRO {
|
|
checkMount(t, spec.Mounts, "sysfs", "/sys", "sysfs", []string{"ro"}, []string{"rw"})
|
|
} else {
|
|
checkMount(t, spec.Mounts, "sysfs", "/sys", "sysfs", []string{"rw"}, []string{"ro"})
|
|
}
|
|
if test.expectedCgroupFSRO {
|
|
checkMount(t, spec.Mounts, "cgroup", "/sys/fs/cgroup", "cgroup", []string{"ro"}, []string{"rw"})
|
|
} else {
|
|
checkMount(t, spec.Mounts, "cgroup", "/sys/fs/cgroup", "cgroup", []string{"rw"}, []string{"ro"})
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestMountPropagation(t *testing.T) {
|
|
|
|
sharedLookupMountFn := func(string) (mount.Info, error) {
|
|
return mount.Info{
|
|
Mountpoint: "host-path",
|
|
Optional: "shared:",
|
|
}, nil
|
|
}
|
|
|
|
slaveLookupMountFn := func(string) (mount.Info, error) {
|
|
return mount.Info{
|
|
Mountpoint: "host-path",
|
|
Optional: "master:",
|
|
}, nil
|
|
}
|
|
|
|
othersLookupMountFn := func(string) (mount.Info, error) {
|
|
return mount.Info{
|
|
Mountpoint: "host-path",
|
|
Optional: "others",
|
|
}, nil
|
|
}
|
|
|
|
for desc, test := range map[string]struct {
|
|
criMount *runtime.Mount
|
|
fakeLookupMountFn func(string) (mount.Info, error)
|
|
optionsCheck []string
|
|
expectErr bool
|
|
}{
|
|
"HostPath should mount as 'rprivate' if propagation is MountPropagation_PROPAGATION_PRIVATE": {
|
|
criMount: &runtime.Mount{
|
|
ContainerPath: "container-path",
|
|
HostPath: "host-path",
|
|
Propagation: runtime.MountPropagation_PROPAGATION_PRIVATE,
|
|
},
|
|
fakeLookupMountFn: nil,
|
|
optionsCheck: []string{"rbind", "rprivate"},
|
|
expectErr: false,
|
|
},
|
|
"HostPath should mount as 'rslave' if propagation is MountPropagation_PROPAGATION_HOST_TO_CONTAINER": {
|
|
criMount: &runtime.Mount{
|
|
ContainerPath: "container-path",
|
|
HostPath: "host-path",
|
|
Propagation: runtime.MountPropagation_PROPAGATION_HOST_TO_CONTAINER,
|
|
},
|
|
fakeLookupMountFn: slaveLookupMountFn,
|
|
optionsCheck: []string{"rbind", "rslave"},
|
|
expectErr: false,
|
|
},
|
|
"HostPath should mount as 'rshared' if propagation is MountPropagation_PROPAGATION_BIDIRECTIONAL": {
|
|
criMount: &runtime.Mount{
|
|
ContainerPath: "container-path",
|
|
HostPath: "host-path",
|
|
Propagation: runtime.MountPropagation_PROPAGATION_BIDIRECTIONAL,
|
|
},
|
|
fakeLookupMountFn: sharedLookupMountFn,
|
|
optionsCheck: []string{"rbind", "rshared"},
|
|
expectErr: false,
|
|
},
|
|
"HostPath should mount as 'rprivate' if propagation is illegal": {
|
|
criMount: &runtime.Mount{
|
|
ContainerPath: "container-path",
|
|
HostPath: "host-path",
|
|
Propagation: runtime.MountPropagation(42),
|
|
},
|
|
fakeLookupMountFn: nil,
|
|
optionsCheck: []string{"rbind", "rprivate"},
|
|
expectErr: false,
|
|
},
|
|
"Expect an error if HostPath isn't shared and mount propagation is MountPropagation_PROPAGATION_BIDIRECTIONAL": {
|
|
criMount: &runtime.Mount{
|
|
ContainerPath: "container-path",
|
|
HostPath: "host-path",
|
|
Propagation: runtime.MountPropagation_PROPAGATION_BIDIRECTIONAL,
|
|
},
|
|
fakeLookupMountFn: slaveLookupMountFn,
|
|
expectErr: true,
|
|
},
|
|
"Expect an error if HostPath isn't slave or shared and mount propagation is MountPropagation_PROPAGATION_HOST_TO_CONTAINER": {
|
|
criMount: &runtime.Mount{
|
|
ContainerPath: "container-path",
|
|
HostPath: "host-path",
|
|
Propagation: runtime.MountPropagation_PROPAGATION_HOST_TO_CONTAINER,
|
|
},
|
|
fakeLookupMountFn: othersLookupMountFn,
|
|
expectErr: true,
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
c := newTestCRIService()
|
|
c.os.(*ostesting.FakeOS).LookupMountFn = test.fakeLookupMountFn
|
|
config, _, _, _ := getCreateContainerTestData()
|
|
|
|
var spec runtimespec.Spec
|
|
spec.Linux = &runtimespec.Linux{}
|
|
|
|
err := opts.WithMounts(c.os, config, []*runtime.Mount{test.criMount}, "")(context.Background(), nil, nil, &spec)
|
|
if test.expectErr {
|
|
require.Error(t, err)
|
|
} else {
|
|
require.NoError(t, err)
|
|
checkMount(t, spec.Mounts, test.criMount.HostPath, test.criMount.ContainerPath, "bind", test.optionsCheck, nil)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestPidNamespace(t *testing.T) {
|
|
testID := "test-id"
|
|
testPid := uint32(1234)
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
containerConfig, sandboxConfig, imageConfig, _ := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
for desc, test := range map[string]struct {
|
|
pidNS runtime.NamespaceMode
|
|
expected runtimespec.LinuxNamespace
|
|
}{
|
|
"node namespace mode": {
|
|
pidNS: runtime.NamespaceMode_NODE,
|
|
expected: runtimespec.LinuxNamespace{
|
|
Type: runtimespec.PIDNamespace,
|
|
Path: opts.GetPIDNamespace(testPid),
|
|
},
|
|
},
|
|
"container namespace mode": {
|
|
pidNS: runtime.NamespaceMode_CONTAINER,
|
|
expected: runtimespec.LinuxNamespace{
|
|
Type: runtimespec.PIDNamespace,
|
|
},
|
|
},
|
|
"pod namespace mode": {
|
|
pidNS: runtime.NamespaceMode_POD,
|
|
expected: runtimespec.LinuxNamespace{
|
|
Type: runtimespec.PIDNamespace,
|
|
Path: opts.GetPIDNamespace(testPid),
|
|
},
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
containerConfig.Linux.SecurityContext.NamespaceOptions = &runtime.NamespaceOption{Pid: test.pidNS}
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
require.NoError(t, err)
|
|
assert.Contains(t, spec.Linux.Namespaces, test.expected)
|
|
}
|
|
}
|
|
|
|
func TestNoDefaultRunMount(t *testing.T) {
|
|
testID := "test-id"
|
|
testPid := uint32(1234)
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
containerConfig, sandboxConfig, imageConfig, _ := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
assert.NoError(t, err)
|
|
for _, mount := range spec.Mounts {
|
|
assert.NotEqual(t, "/run", mount.Destination)
|
|
}
|
|
}
|
|
|
|
func TestGenerateSeccompSecurityProfileSpecOpts(t *testing.T) {
|
|
for desc, test := range map[string]struct {
|
|
profile string
|
|
privileged bool
|
|
disable bool
|
|
specOpts oci.SpecOpts
|
|
expectErr bool
|
|
defaultProfile string
|
|
sp *runtime.SecurityProfile
|
|
}{
|
|
"should return error if seccomp is specified when seccomp is not supported": {
|
|
profile: runtimeDefault,
|
|
disable: true,
|
|
expectErr: true,
|
|
},
|
|
"should not return error if seccomp is not specified when seccomp is not supported": {
|
|
profile: "",
|
|
disable: true,
|
|
},
|
|
"should not return error if seccomp is unconfined when seccomp is not supported": {
|
|
profile: unconfinedProfile,
|
|
disable: true,
|
|
},
|
|
"should not set seccomp when privileged is true": {
|
|
profile: seccompDefaultProfile,
|
|
privileged: true,
|
|
},
|
|
"should not set seccomp when seccomp is unconfined": {
|
|
profile: unconfinedProfile,
|
|
},
|
|
"should not set seccomp when seccomp is not specified": {
|
|
profile: "",
|
|
},
|
|
"should set default seccomp when seccomp is runtime/default": {
|
|
profile: runtimeDefault,
|
|
specOpts: seccomp.WithDefaultProfile(),
|
|
},
|
|
"should set default seccomp when seccomp is docker/default": {
|
|
profile: dockerDefault,
|
|
specOpts: seccomp.WithDefaultProfile(),
|
|
},
|
|
"should set specified profile when local profile is specified": {
|
|
profile: profileNamePrefix + "test-profile",
|
|
specOpts: seccomp.WithProfile("test-profile"),
|
|
},
|
|
"should use default profile when seccomp is empty": {
|
|
defaultProfile: profileNamePrefix + "test-profile",
|
|
specOpts: seccomp.WithProfile("test-profile"),
|
|
},
|
|
"should fallback to docker/default when seccomp is empty and default is runtime/default": {
|
|
defaultProfile: runtimeDefault,
|
|
specOpts: seccomp.WithDefaultProfile(),
|
|
},
|
|
//-----------------------------------------------
|
|
// now buckets for the SecurityProfile variants
|
|
//-----------------------------------------------
|
|
"sp should return error if seccomp is specified when seccomp is not supported": {
|
|
disable: true,
|
|
expectErr: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_RuntimeDefault,
|
|
},
|
|
},
|
|
"sp should not return error if seccomp is unconfined when seccomp is not supported": {
|
|
disable: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Unconfined,
|
|
},
|
|
},
|
|
"sp should not set seccomp when privileged is true": {
|
|
privileged: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_RuntimeDefault,
|
|
},
|
|
},
|
|
"sp should not set seccomp when seccomp is unconfined": {
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Unconfined,
|
|
},
|
|
},
|
|
"sp should not set seccomp when seccomp is not specified": {},
|
|
"sp should set default seccomp when seccomp is runtime/default": {
|
|
specOpts: seccomp.WithDefaultProfile(),
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_RuntimeDefault,
|
|
},
|
|
},
|
|
"sp should set specified profile when local profile is specified": {
|
|
specOpts: seccomp.WithProfile("test-profile"),
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Localhost,
|
|
LocalhostRef: profileNamePrefix + "test-profile",
|
|
},
|
|
},
|
|
"sp should set specified profile when local profile is specified even without prefix": {
|
|
specOpts: seccomp.WithProfile("test-profile"),
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Localhost,
|
|
LocalhostRef: "test-profile",
|
|
},
|
|
},
|
|
"sp should return error if specified profile is invalid": {
|
|
expectErr: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_RuntimeDefault,
|
|
LocalhostRef: "test-profile",
|
|
},
|
|
},
|
|
} {
|
|
t.Run(fmt.Sprintf("TestCase %q", desc), func(t *testing.T) {
|
|
cri := &criService{}
|
|
cri.config.UnsetSeccompProfile = test.defaultProfile
|
|
ssp := test.sp
|
|
csp, err := generateSeccompSecurityProfile(
|
|
test.profile,
|
|
test.defaultProfile)
|
|
if err != nil {
|
|
if test.expectErr {
|
|
assert.Error(t, err)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
}
|
|
} else {
|
|
if ssp == nil {
|
|
ssp = csp
|
|
}
|
|
specOpts, err := cri.generateSeccompSpecOpts(ssp, test.privileged, !test.disable)
|
|
assert.Equal(t,
|
|
reflect.ValueOf(test.specOpts).Pointer(),
|
|
reflect.ValueOf(specOpts).Pointer())
|
|
if test.expectErr {
|
|
assert.Error(t, err)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGenerateApparmorSpecOpts(t *testing.T) {
|
|
for desc, test := range map[string]struct {
|
|
profile string
|
|
privileged bool
|
|
disable bool
|
|
specOpts oci.SpecOpts
|
|
expectErr bool
|
|
sp *runtime.SecurityProfile
|
|
}{
|
|
"should return error if apparmor is specified when apparmor is not supported": {
|
|
profile: runtimeDefault,
|
|
disable: true,
|
|
expectErr: true,
|
|
},
|
|
"should not return error if apparmor is not specified when apparmor is not supported": {
|
|
profile: "",
|
|
disable: true,
|
|
},
|
|
"should set default apparmor when apparmor is not specified": {
|
|
profile: "",
|
|
specOpts: apparmor.WithDefaultProfile(appArmorDefaultProfileName),
|
|
},
|
|
"should not apparmor when apparmor is not specified and privileged is true": {
|
|
profile: "",
|
|
privileged: true,
|
|
},
|
|
"should not return error if apparmor is unconfined when apparmor is not supported": {
|
|
profile: unconfinedProfile,
|
|
disable: true,
|
|
},
|
|
"should not apparmor when apparmor is unconfined": {
|
|
profile: unconfinedProfile,
|
|
},
|
|
"should not apparmor when apparmor is unconfined and privileged is true": {
|
|
profile: unconfinedProfile,
|
|
privileged: true,
|
|
},
|
|
"should set default apparmor when apparmor is runtime/default": {
|
|
profile: runtimeDefault,
|
|
specOpts: apparmor.WithDefaultProfile(appArmorDefaultProfileName),
|
|
},
|
|
"should not apparmor when apparmor is default and privileged is true": {
|
|
profile: runtimeDefault,
|
|
privileged: true,
|
|
},
|
|
// TODO (mikebrow) add success with existing defined profile tests
|
|
"should return error when undefined local profile is specified": {
|
|
profile: profileNamePrefix + "test-profile",
|
|
expectErr: true,
|
|
},
|
|
"should return error when undefined local profile is specified and privileged is true": {
|
|
profile: profileNamePrefix + "test-profile",
|
|
privileged: true,
|
|
expectErr: true,
|
|
},
|
|
"should return error if specified profile is invalid": {
|
|
profile: "test-profile",
|
|
expectErr: true,
|
|
},
|
|
//--------------------------------------
|
|
// buckets for SecurityProfile struct
|
|
//--------------------------------------
|
|
"sp should return error if apparmor is specified when apparmor is not supported": {
|
|
disable: true,
|
|
expectErr: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_RuntimeDefault,
|
|
},
|
|
},
|
|
"sp should not return error if apparmor is unconfined when apparmor is not supported": {
|
|
disable: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Unconfined,
|
|
},
|
|
},
|
|
"sp should not apparmor when apparmor is unconfined": {
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Unconfined,
|
|
},
|
|
},
|
|
"sp should not apparmor when apparmor is unconfined and privileged is true": {
|
|
privileged: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Unconfined,
|
|
},
|
|
},
|
|
"sp should set default apparmor when apparmor is runtime/default": {
|
|
specOpts: apparmor.WithDefaultProfile(appArmorDefaultProfileName),
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_RuntimeDefault,
|
|
},
|
|
},
|
|
"sp should not apparmor when apparmor is default and privileged is true": {
|
|
privileged: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_RuntimeDefault,
|
|
},
|
|
},
|
|
"sp should return error when undefined local profile is specified": {
|
|
expectErr: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Localhost,
|
|
LocalhostRef: profileNamePrefix + "test-profile",
|
|
},
|
|
},
|
|
"sp should return error when undefined local profile is specified even without prefix": {
|
|
profile: profileNamePrefix + "test-profile",
|
|
expectErr: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Localhost,
|
|
LocalhostRef: "test-profile",
|
|
},
|
|
},
|
|
"sp should return error when undefined local profile is specified and privileged is true": {
|
|
privileged: true,
|
|
expectErr: true,
|
|
sp: &runtime.SecurityProfile{
|
|
ProfileType: runtime.SecurityProfile_Localhost,
|
|
LocalhostRef: profileNamePrefix + "test-profile",
|
|
},
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
asp := test.sp
|
|
csp, err := generateApparmorSecurityProfile(test.profile)
|
|
if err != nil {
|
|
if test.expectErr {
|
|
assert.Error(t, err)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
}
|
|
} else {
|
|
if asp == nil {
|
|
asp = csp
|
|
}
|
|
specOpts, err := generateApparmorSpecOpts(asp, test.privileged, !test.disable)
|
|
assert.Equal(t,
|
|
reflect.ValueOf(test.specOpts).Pointer(),
|
|
reflect.ValueOf(specOpts).Pointer())
|
|
if test.expectErr {
|
|
assert.Error(t, err)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestMaskedAndReadonlyPaths(t *testing.T) {
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
|
|
defaultSpec, err := oci.GenerateSpec(ctrdutil.NamespacedContext(), nil, &containers.Container{ID: testID})
|
|
require.NoError(t, err)
|
|
|
|
for desc, test := range map[string]struct {
|
|
disableProcMount bool
|
|
masked []string
|
|
readonly []string
|
|
expectedMasked []string
|
|
expectedReadonly []string
|
|
privileged bool
|
|
}{
|
|
"should apply default if not specified when disable_proc_mount = true": {
|
|
disableProcMount: true,
|
|
masked: nil,
|
|
readonly: nil,
|
|
expectedMasked: defaultSpec.Linux.MaskedPaths,
|
|
expectedReadonly: defaultSpec.Linux.ReadonlyPaths,
|
|
privileged: false,
|
|
},
|
|
"should apply default if not specified when disable_proc_mount = false": {
|
|
disableProcMount: false,
|
|
masked: nil,
|
|
readonly: nil,
|
|
expectedMasked: []string{},
|
|
expectedReadonly: []string{},
|
|
privileged: false,
|
|
},
|
|
"should be able to specify empty paths": {
|
|
masked: []string{},
|
|
readonly: []string{},
|
|
expectedMasked: []string{},
|
|
expectedReadonly: []string{},
|
|
privileged: false,
|
|
},
|
|
"should apply CRI specified paths": {
|
|
masked: []string{"/proc"},
|
|
readonly: []string{"/sys"},
|
|
expectedMasked: []string{"/proc"},
|
|
expectedReadonly: []string{"/sys"},
|
|
privileged: false,
|
|
},
|
|
"default should be nil for privileged": {
|
|
expectedMasked: nil,
|
|
expectedReadonly: nil,
|
|
privileged: true,
|
|
},
|
|
"should be able to specify empty paths, esp. if privileged": {
|
|
masked: []string{},
|
|
readonly: []string{},
|
|
expectedMasked: nil,
|
|
expectedReadonly: nil,
|
|
privileged: true,
|
|
},
|
|
"should not apply CRI specified paths if privileged": {
|
|
masked: []string{"/proc"},
|
|
readonly: []string{"/sys"},
|
|
expectedMasked: nil,
|
|
expectedReadonly: nil,
|
|
privileged: true,
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
c.config.DisableProcMount = test.disableProcMount
|
|
containerConfig.Linux.SecurityContext.MaskedPaths = test.masked
|
|
containerConfig.Linux.SecurityContext.ReadonlyPaths = test.readonly
|
|
containerConfig.Linux.SecurityContext.Privileged = test.privileged
|
|
sandboxConfig.Linux.SecurityContext = &runtime.LinuxSandboxSecurityContext{
|
|
Privileged: test.privileged,
|
|
}
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
require.NoError(t, err)
|
|
if !test.privileged { // specCheck presumes an unprivileged container
|
|
specCheck(t, testID, testSandboxID, testPid, spec)
|
|
}
|
|
assert.Equal(t, test.expectedMasked, spec.Linux.MaskedPaths)
|
|
assert.Equal(t, test.expectedReadonly, spec.Linux.ReadonlyPaths)
|
|
}
|
|
}
|
|
|
|
func TestHostname(t *testing.T) {
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
c.os.(*ostesting.FakeOS).HostnameFn = func() (string, error) {
|
|
return "real-hostname", nil
|
|
}
|
|
for desc, test := range map[string]struct {
|
|
hostname string
|
|
networkNs runtime.NamespaceMode
|
|
expectedEnv string
|
|
}{
|
|
"should add HOSTNAME=sandbox.Hostname for pod network namespace": {
|
|
hostname: "test-hostname",
|
|
networkNs: runtime.NamespaceMode_POD,
|
|
expectedEnv: "HOSTNAME=test-hostname",
|
|
},
|
|
"should add HOSTNAME=sandbox.Hostname for host network namespace": {
|
|
hostname: "test-hostname",
|
|
networkNs: runtime.NamespaceMode_NODE,
|
|
expectedEnv: "HOSTNAME=test-hostname",
|
|
},
|
|
"should add HOSTNAME=os.Hostname for host network namespace if sandbox.Hostname is not set": {
|
|
hostname: "",
|
|
networkNs: runtime.NamespaceMode_NODE,
|
|
expectedEnv: "HOSTNAME=real-hostname",
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
sandboxConfig.Hostname = test.hostname
|
|
sandboxConfig.Linux.SecurityContext = &runtime.LinuxSandboxSecurityContext{
|
|
NamespaceOptions: &runtime.NamespaceOption{Network: test.networkNs},
|
|
}
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
require.NoError(t, err)
|
|
specCheck(t, testID, testSandboxID, testPid, spec)
|
|
assert.Contains(t, spec.Process.Env, test.expectedEnv)
|
|
}
|
|
}
|
|
|
|
func TestDisableCgroup(t *testing.T) {
|
|
containerConfig, sandboxConfig, imageConfig, _ := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
c.config.DisableCgroup = true
|
|
spec, err := c.containerSpec("test-id", "sandbox-id", 1234, "", "container-name", testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
require.NoError(t, err)
|
|
|
|
t.Log("resource limit should not be set")
|
|
assert.Nil(t, spec.Linux.Resources.Memory)
|
|
assert.Nil(t, spec.Linux.Resources.CPU)
|
|
|
|
t.Log("cgroup path should be empty")
|
|
assert.Empty(t, spec.Linux.CgroupsPath)
|
|
}
|
|
|
|
func TestGenerateUserString(t *testing.T) {
|
|
type testcase struct {
|
|
// the name of the test case
|
|
name string
|
|
|
|
u string
|
|
uid, gid *runtime.Int64Value
|
|
|
|
result string
|
|
expectedError bool
|
|
}
|
|
testcases := []testcase{
|
|
{
|
|
name: "Empty",
|
|
result: "",
|
|
},
|
|
{
|
|
name: "Username Only",
|
|
u: "testuser",
|
|
result: "testuser",
|
|
},
|
|
{
|
|
name: "Username, UID",
|
|
u: "testuser",
|
|
uid: &runtime.Int64Value{Value: 1},
|
|
result: "testuser",
|
|
},
|
|
{
|
|
name: "Username, UID, GID",
|
|
u: "testuser",
|
|
uid: &runtime.Int64Value{Value: 1},
|
|
gid: &runtime.Int64Value{Value: 10},
|
|
result: "testuser:10",
|
|
},
|
|
{
|
|
name: "Username, GID",
|
|
u: "testuser",
|
|
gid: &runtime.Int64Value{Value: 10},
|
|
result: "testuser:10",
|
|
},
|
|
{
|
|
name: "UID only",
|
|
uid: &runtime.Int64Value{Value: 1},
|
|
result: "1",
|
|
},
|
|
{
|
|
name: "UID, GID",
|
|
uid: &runtime.Int64Value{Value: 1},
|
|
gid: &runtime.Int64Value{Value: 10},
|
|
result: "1:10",
|
|
},
|
|
{
|
|
name: "GID only",
|
|
gid: &runtime.Int64Value{Value: 10},
|
|
result: "",
|
|
expectedError: true,
|
|
},
|
|
}
|
|
for _, tc := range testcases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
r, err := generateUserString(tc.u, tc.uid, tc.gid)
|
|
if tc.expectedError {
|
|
assert.Error(t, err)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
}
|
|
assert.Equal(t, tc.result, r)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestNonRootUserAndDevices(t *testing.T) {
|
|
testPid := uint32(1234)
|
|
c := newTestCRIService()
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
containerConfig, sandboxConfig, imageConfig, _ := getCreateContainerTestData()
|
|
|
|
hostDevicesRaw, err := oci.HostDevices()
|
|
assert.NoError(t, err)
|
|
|
|
testDevice := hostDevicesRaw[0]
|
|
|
|
for desc, test := range map[string]struct {
|
|
uid, gid *runtime.Int64Value
|
|
deviceOwnershipFromSecurityContext bool
|
|
expectedDeviceUID uint32
|
|
expectedDeviceGID uint32
|
|
}{
|
|
"expect non-root container's Devices Uid/Gid to be the same as the device Uid/Gid on the host when deviceOwnershipFromSecurityContext is disabled": {
|
|
uid: &runtime.Int64Value{Value: 1},
|
|
gid: &runtime.Int64Value{Value: 10},
|
|
expectedDeviceUID: *testDevice.UID,
|
|
expectedDeviceGID: *testDevice.GID,
|
|
},
|
|
"expect root container's Devices Uid/Gid to be the same as the device Uid/Gid on the host when deviceOwnershipFromSecurityContext is disabled": {
|
|
uid: &runtime.Int64Value{Value: 0},
|
|
gid: &runtime.Int64Value{Value: 0},
|
|
expectedDeviceUID: *testDevice.UID,
|
|
expectedDeviceGID: *testDevice.GID,
|
|
},
|
|
"expect non-root container's Devices Uid/Gid to be the same as RunAsUser/RunAsGroup when deviceOwnershipFromSecurityContext is enabled": {
|
|
uid: &runtime.Int64Value{Value: 1},
|
|
gid: &runtime.Int64Value{Value: 10},
|
|
deviceOwnershipFromSecurityContext: true,
|
|
expectedDeviceUID: 1,
|
|
expectedDeviceGID: 10,
|
|
},
|
|
"expect root container's Devices Uid/Gid to be the same as the device Uid/Gid on the host when deviceOwnershipFromSecurityContext is enabled": {
|
|
uid: &runtime.Int64Value{Value: 0},
|
|
gid: &runtime.Int64Value{Value: 0},
|
|
deviceOwnershipFromSecurityContext: true,
|
|
expectedDeviceUID: *testDevice.UID,
|
|
expectedDeviceGID: *testDevice.GID,
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
|
|
c.config.DeviceOwnershipFromSecurityContext = test.deviceOwnershipFromSecurityContext
|
|
containerConfig.Linux.SecurityContext.RunAsUser = test.uid
|
|
containerConfig.Linux.SecurityContext.RunAsGroup = test.gid
|
|
containerConfig.Devices = []*runtime.Device{
|
|
{
|
|
ContainerPath: testDevice.Path,
|
|
HostPath: testDevice.Path,
|
|
Permissions: "r",
|
|
},
|
|
}
|
|
|
|
spec, err := c.containerSpec(t.Name(), testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, config.Runtime{})
|
|
assert.NoError(t, err)
|
|
|
|
assert.Equal(t, test.expectedDeviceUID, *spec.Linux.Devices[0].UID)
|
|
assert.Equal(t, test.expectedDeviceGID, *spec.Linux.Devices[0].GID)
|
|
}
|
|
}
|
|
|
|
func TestPrivilegedDevices(t *testing.T) {
|
|
testPid := uint32(1234)
|
|
c := newTestCRIService()
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
containerConfig, sandboxConfig, imageConfig, _ := getCreateContainerTestData()
|
|
|
|
for desc, test := range map[string]struct {
|
|
privileged bool
|
|
privilegedWithoutHostDevices bool
|
|
expectHostDevices bool
|
|
}{
|
|
"expect no host devices when privileged is false": {
|
|
privileged: false,
|
|
privilegedWithoutHostDevices: false,
|
|
expectHostDevices: false,
|
|
},
|
|
"expect no host devices when privileged is false and privilegedWithoutHostDevices is true": {
|
|
privileged: false,
|
|
privilegedWithoutHostDevices: true,
|
|
expectHostDevices: false,
|
|
},
|
|
"expect host devices when privileged is true": {
|
|
privileged: true,
|
|
privilegedWithoutHostDevices: false,
|
|
expectHostDevices: true,
|
|
},
|
|
"expect no host devices when privileged is true and privilegedWithoutHostDevices is true": {
|
|
privileged: true,
|
|
privilegedWithoutHostDevices: true,
|
|
expectHostDevices: false,
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
|
|
containerConfig.Linux.SecurityContext.Privileged = test.privileged
|
|
sandboxConfig.Linux.SecurityContext.Privileged = test.privileged
|
|
|
|
ociRuntime := config.Runtime{
|
|
PrivilegedWithoutHostDevices: test.privilegedWithoutHostDevices,
|
|
}
|
|
spec, err := c.containerSpec(t.Name(), testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
assert.NoError(t, err)
|
|
|
|
hostDevicesRaw, err := oci.HostDevices()
|
|
assert.NoError(t, err)
|
|
var hostDevices = make([]string, 0)
|
|
for _, dev := range hostDevicesRaw {
|
|
// https://github.com/containerd/cri/pull/1521#issuecomment-652807951
|
|
if dev.Major != 0 {
|
|
hostDevices = append(hostDevices, dev.Path)
|
|
}
|
|
}
|
|
|
|
if test.expectHostDevices {
|
|
assert.Len(t, spec.Linux.Devices, len(hostDevices))
|
|
} else {
|
|
assert.Empty(t, spec.Linux.Devices)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestBaseOCISpec(t *testing.T) {
|
|
c := newTestCRIService()
|
|
baseLimit := int64(100)
|
|
c.baseOCISpecs = map[string]*oci.Spec{
|
|
"/etc/containerd/cri-base.json": {
|
|
Process: &runtimespec.Process{
|
|
User: runtimespec.User{AdditionalGids: []uint32{9999}},
|
|
Capabilities: &runtimespec.LinuxCapabilities{
|
|
Permitted: []string{"CAP_SETUID"},
|
|
},
|
|
},
|
|
Linux: &runtimespec.Linux{
|
|
Resources: &runtimespec.LinuxResources{
|
|
Memory: &runtimespec.LinuxMemory{Limit: &baseLimit}, // Will be overwritten by `getCreateContainerTestData`
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
ociRuntime := config.Runtime{}
|
|
ociRuntime.BaseRuntimeSpec = "/etc/containerd/cri-base.json"
|
|
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
|
|
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
assert.NoError(t, err)
|
|
|
|
specCheck(t, testID, testSandboxID, testPid, spec)
|
|
|
|
assert.Contains(t, spec.Process.User.AdditionalGids, uint32(9999))
|
|
assert.Len(t, spec.Process.User.AdditionalGids, 3)
|
|
|
|
assert.Contains(t, spec.Process.Capabilities.Permitted, "CAP_SETUID")
|
|
assert.Len(t, spec.Process.Capabilities.Permitted, 1)
|
|
|
|
assert.Equal(t, *spec.Linux.Resources.Memory.Limit, containerConfig.Linux.Resources.MemoryLimitInBytes)
|
|
}
|
|
|
|
func writeFilesToTempDir(tmpDirPattern string, content []string) (string, error) {
|
|
if len(content) == 0 {
|
|
return "", nil
|
|
}
|
|
|
|
dir, err := ioutil.TempDir("", tmpDirPattern)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
for idx, data := range content {
|
|
file := filepath.Join(dir, fmt.Sprintf("spec-%d.yaml", idx))
|
|
err := ioutil.WriteFile(file, []byte(data), 0644)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
}
|
|
|
|
return dir, nil
|
|
}
|
|
|
|
func TestCDIInjections(t *testing.T) {
|
|
testID := "test-id"
|
|
testSandboxID := "sandbox-id"
|
|
testContainerName := "container-name"
|
|
testPid := uint32(1234)
|
|
containerConfig, sandboxConfig, imageConfig, specCheck := getCreateContainerTestData()
|
|
ociRuntime := config.Runtime{}
|
|
c := newTestCRIService()
|
|
|
|
for _, test := range []struct {
|
|
description string
|
|
cdiSpecFiles []string
|
|
annotations map[string]string
|
|
expectError bool
|
|
expectDevices []runtimespec.LinuxDevice
|
|
expectEnv []string
|
|
}{
|
|
{description: "expect no CDI error for nil annotations"},
|
|
{description: "expect no CDI error for empty annotations",
|
|
annotations: map[string]string{},
|
|
},
|
|
{description: "expect CDI error for invalid CDI device reference in annotations",
|
|
annotations: map[string]string{
|
|
cdi.AnnotationPrefix + "devices": "foobar",
|
|
},
|
|
expectError: true,
|
|
},
|
|
{description: "expect CDI error for unresolvable devices",
|
|
annotations: map[string]string{
|
|
cdi.AnnotationPrefix + "vendor1_devices": "vendor1.com/device=no-such-dev",
|
|
},
|
|
expectError: true,
|
|
},
|
|
{description: "expect properly injected resolvable CDI devices",
|
|
cdiSpecFiles: []string{
|
|
`
|
|
cdiVersion: "0.2.0"
|
|
kind: "vendor1.com/device"
|
|
devices:
|
|
- name: foo
|
|
containerEdits:
|
|
deviceNodes:
|
|
- path: /dev/loop8
|
|
type: b
|
|
major: 7
|
|
minor: 8
|
|
env:
|
|
- FOO=injected
|
|
containerEdits:
|
|
env:
|
|
- "VENDOR1=present"
|
|
`,
|
|
`
|
|
cdiVersion: "0.2.0"
|
|
kind: "vendor2.com/device"
|
|
devices:
|
|
- name: bar
|
|
containerEdits:
|
|
deviceNodes:
|
|
- path: /dev/loop9
|
|
type: b
|
|
major: 7
|
|
minor: 9
|
|
env:
|
|
- BAR=injected
|
|
containerEdits:
|
|
env:
|
|
- "VENDOR2=present"
|
|
`,
|
|
},
|
|
annotations: map[string]string{
|
|
cdi.AnnotationPrefix + "vendor1_devices": "vendor1.com/device=foo",
|
|
cdi.AnnotationPrefix + "vendor2_devices": "vendor2.com/device=bar",
|
|
},
|
|
expectDevices: []runtimespec.LinuxDevice{
|
|
{
|
|
Path: "/dev/loop8",
|
|
Type: "b",
|
|
Major: 7,
|
|
Minor: 8,
|
|
},
|
|
{
|
|
Path: "/dev/loop9",
|
|
Type: "b",
|
|
Major: 7,
|
|
Minor: 9,
|
|
},
|
|
},
|
|
expectEnv: []string{
|
|
"FOO=injected",
|
|
"VENDOR1=present",
|
|
"BAR=injected",
|
|
"VENDOR2=present",
|
|
},
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", test.description)
|
|
|
|
spec, err := c.containerSpec(testID, testSandboxID, testPid, "", testContainerName, testImageName, containerConfig, sandboxConfig, imageConfig, nil, ociRuntime)
|
|
require.NoError(t, err)
|
|
|
|
specCheck(t, testID, testSandboxID, testPid, spec)
|
|
|
|
cdiDir, err := writeFilesToTempDir("containerd-test-CDI-injections-", test.cdiSpecFiles)
|
|
if cdiDir != "" {
|
|
defer os.RemoveAll(cdiDir)
|
|
}
|
|
require.NoError(t, err)
|
|
|
|
injectFun := containerd.WithCDI(spec, test.annotations, []string{cdiDir})
|
|
err = injectFun(nil, nil, nil)
|
|
assert.Equal(t, test.expectError, err != nil)
|
|
|
|
if err != nil {
|
|
if test.expectEnv != nil {
|
|
for _, expectedEnv := range test.expectEnv {
|
|
assert.Contains(t, spec.Process.Env, expectedEnv)
|
|
}
|
|
}
|
|
if test.expectDevices != nil {
|
|
for _, expectedDev := range test.expectDevices {
|
|
assert.Contains(t, spec.Linux.Devices, expectedDev)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|