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Merge pull request #4084 from elezar/add-cdi-support 

Support CDI devices in --device flag
This commit is contained in:
Sebastiaan van Stijn 2023-07-06 22:44:58 +02:00 committed by GitHub
parent dc2eb3bf7c dbd9d5d74f
commit b8f51d9591
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 515 additions and 29 deletions
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17
cli/command/container/opts.go
View File

@ -13,6 +13,7 @@ import (
"strings"
"time"
cdi "github.com/container-orchestrated-devices/container-device-interface/pkg/parser"
"github.com/docker/cli/cli/compose/loader"
"github.com/docker/cli/opts"
"github.com/docker/docker/api/types/container"
@ -449,12 +450,17 @@ func parse(flags *pflag.FlagSet, copts *containerOptions, serverOS string) (*con
// parsing flags, we haven't yet sent a _ping to the daemon to determine
// what operating system it is.
deviceMappings := []container.DeviceMapping{}
var cdiDeviceNames []string
for _, device := range copts.devices.GetAll() {
var (
validated string
deviceMapping container.DeviceMapping
err error
)
if cdi.IsQualifiedName(device) {
cdiDeviceNames = append(cdiDeviceNames, device)
continue
}
validated, err = validateDevice(device, serverOS)
if err != nil {
return nil, err
@ -559,6 +565,15 @@ func parse(flags *pflag.FlagSet, copts *containerOptions, serverOS string) (*con
}
}
deviceRequests := copts.gpus.Value()
if len(cdiDeviceNames) > 0 {
cdiDeviceRequest := container.DeviceRequest{
Driver: "cdi",
DeviceIDs: cdiDeviceNames,
}
deviceRequests = append(deviceRequests, cdiDeviceRequest)
}
resources := container.Resources{
CgroupParent: copts.cgroupParent,
Memory: copts.memory.Value(),
@ -589,7 +604,7 @@ func parse(flags *pflag.FlagSet, copts *containerOptions, serverOS string) (*con
Ulimits: copts.ulimits.GetList(),
DeviceCgroupRules: copts.deviceCgroupRules.GetAll(),
Devices: deviceMappings,
DeviceRequests: copts.gpus.Value(),
DeviceRequests: deviceRequests,
}
config := &container.Config{

108
cli/command/container/opts_test.go
View File

@ -417,39 +417,91 @@ func TestParseWithExpose(t *testing.T) {
func TestParseDevice(t *testing.T) {
skip.If(t, runtime.GOOS != "linux") // Windows and macOS validate server-side
valids := map[string]container.DeviceMapping{
"/dev/snd": {
PathOnHost: "/dev/snd",
PathInContainer: "/dev/snd",
CgroupPermissions: "rwm",
testCases := []struct {
devices []string
deviceMapping *container.DeviceMapping
deviceRequests []container.DeviceRequest
}{
{
devices: []string{"/dev/snd"},
deviceMapping: &container.DeviceMapping{
PathOnHost: "/dev/snd",
PathInContainer: "/dev/snd",
CgroupPermissions: "rwm",
},
},
"/dev/snd:rw": {
PathOnHost: "/dev/snd",
PathInContainer: "/dev/snd",
CgroupPermissions: "rw",
{
devices: []string{"/dev/snd:rw"},
deviceMapping: &container.DeviceMapping{
PathOnHost: "/dev/snd",
PathInContainer: "/dev/snd",
CgroupPermissions: "rw",
},
},
"/dev/snd:/something": {
PathOnHost: "/dev/snd",
PathInContainer: "/something",
CgroupPermissions: "rwm",
{
devices: []string{"/dev/snd:/something"},
deviceMapping: &container.DeviceMapping{
PathOnHost: "/dev/snd",
PathInContainer: "/something",
CgroupPermissions: "rwm",
},
},
"/dev/snd:/something:rw": {
PathOnHost: "/dev/snd",
PathInContainer: "/something",
CgroupPermissions: "rw",
{
devices: []string{"/dev/snd:/something:rw"},
deviceMapping: &container.DeviceMapping{
PathOnHost: "/dev/snd",
PathInContainer: "/something",
CgroupPermissions: "rw",
},
},
{
devices: []string{"vendor.com/class=name"},
deviceMapping: nil,
deviceRequests: []container.DeviceRequest{
{
Driver: "cdi",
DeviceIDs: []string{"vendor.com/class=name"},
},
},
},
{
devices: []string{"vendor.com/class=name", "/dev/snd:/something:rw"},
deviceMapping: &container.DeviceMapping{
PathOnHost: "/dev/snd",
PathInContainer: "/something",
CgroupPermissions: "rw",
},
deviceRequests: []container.DeviceRequest{
{
Driver: "cdi",
DeviceIDs: []string{"vendor.com/class=name"},
},
},
},
}
for device, deviceMapping := range valids {
_, hostconfig, _, err := parseRun([]string{fmt.Sprintf("--device=%v", device), "img", "cmd"})
if err != nil {
t.Fatal(err)
}
if len(hostconfig.Devices) != 1 {
t.Fatalf("Expected 1 devices, got %v", hostconfig.Devices)
}
if hostconfig.Devices[0] != deviceMapping {
t.Fatalf("Expected %v, got %v", deviceMapping, hostconfig.Devices)
}
for _, tc := range testCases {
t.Run(fmt.Sprintf("%s", tc.devices), func(t *testing.T) {
var args []string
for _, d := range tc.devices {
args = append(args, fmt.Sprintf("--device=%v", d))
}
args = append(args, "img", "cmd")
_, hostconfig, _, err := parseRun(args)
assert.NilError(t, err)
if tc.deviceMapping != nil {
if assert.Check(t, is.Len(hostconfig.Devices, 1)) {
assert.Check(t, is.DeepEqual(*tc.deviceMapping, hostconfig.Devices[0]))
}
} else {
assert.Check(t, is.Len(hostconfig.Devices, 0))
}
assert.Check(t, is.DeepEqual(tc.deviceRequests, hostconfig.DeviceRequests))
})
}
}

1
vendor.mod
View File

@ -8,6 +8,7 @@ go 1.18
require (
dario.cat/mergo v1.0.0
github.com/container-orchestrated-devices/container-device-interface v0.5.5-0.20230516140309-1e6752771dc5
github.com/containerd/containerd v1.6.21
github.com/creack/pty v1.1.18
github.com/docker/distribution v2.8.2+incompatible

2
vendor.sum
View File

@ -84,6 +84,8 @@ github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWH
github.com/cockroachdb/datadriven v0.0.0-20200714090401-bf6692d28da5/go.mod h1:h6jFvWxBdQXxjopDMZyH2UVceIRfR84bdzbkoKrsWNo=
github.com/cockroachdb/errors v1.2.4/go.mod h1:rQD95gz6FARkaKkQXUksEje/d9a6wBJoCr5oaCLELYA=
github.com/cockroachdb/logtags v0.0.0-20190617123548-eb05cc24525f/go.mod h1:i/u985jwjWRlyHXQbwatDASoW0RMlZ/3i9yJHE2xLkI=
github.com/container-orchestrated-devices/container-device-interface v0.5.5-0.20230516140309-1e6752771dc5 h1:qJTKvM6AD0paTZodYyHV540e01I6+Uhq5vkKBi4byvQ=
github.com/container-orchestrated-devices/container-device-interface v0.5.5-0.20230516140309-1e6752771dc5/go.mod h1:OQlgtJtDrOxSQ1BWODC8OZK1tzi9W69wek+Jy17ndzo=
github.com/containerd/containerd v1.6.21 h1:eSTAmnvDKRPWan+MpSSfNyrtleXd86ogK9X8fMWpe/Q=
github.com/containerd/containerd v1.6.21/go.mod h1:apei1/i5Ux2FzrK6+DM/suEsGuK/MeVOfy8tR2q7Wnw=
github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=

201
vendor/github.com/container-orchestrated-devices/container-device-interface/LICENSE generated vendored Normal file
View File

@ -0,0 +1,201 @@
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212
vendor/github.com/container-orchestrated-devices/container-device-interface/pkg/parser/parser.go generated vendored Normal file
View File

@ -0,0 +1,212 @@
/*
Copyright © The CDI 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 parser
import (
"fmt"
"strings"
)
// QualifiedName returns the qualified name for a device.
// The syntax for a qualified device names is
//
// "<vendor>/<class>=<name>".
//
// A valid vendor and class name may contain the following runes:
//
// 'A'-'Z', 'a'-'z', '0'-'9', '.', '-', '_'.
//
// A valid device name may contain the following runes:
//
// 'A'-'Z', 'a'-'z', '0'-'9', '-', '_', '.', ':'
func QualifiedName(vendor, class, name string) string {
return vendor + "/" + class + "=" + name
}
// IsQualifiedName tests if a device name is qualified.
func IsQualifiedName(device string) bool {
_, _, _, err := ParseQualifiedName(device)
return err == nil
}
// ParseQualifiedName splits a qualified name into device vendor, class,
// and name. If the device fails to parse as a qualified name, or if any
// of the split components fail to pass syntax validation, vendor and
// class are returned as empty, together with the verbatim input as the
// name and an error describing the reason for failure.
func ParseQualifiedName(device string) (string, string, string, error) {
vendor, class, name := ParseDevice(device)
if vendor == "" {
return "", "", device, fmt.Errorf("unqualified device %q, missing vendor", device)
}
if class == "" {
return "", "", device, fmt.Errorf("unqualified device %q, missing class", device)
}
if name == "" {
return "", "", device, fmt.Errorf("unqualified device %q, missing device name", device)
}
if err := ValidateVendorName(vendor); err != nil {
return "", "", device, fmt.Errorf("invalid device %q: %w", device, err)
}
if err := ValidateClassName(class); err != nil {
return "", "", device, fmt.Errorf("invalid device %q: %w", device, err)
}
if err := ValidateDeviceName(name); err != nil {
return "", "", device, fmt.Errorf("invalid device %q: %w", device, err)
}
return vendor, class, name, nil
}
// ParseDevice tries to split a device name into vendor, class, and name.
// If this fails, for instance in the case of unqualified device names,
// ParseDevice returns an empty vendor and class together with name set
// to the verbatim input.
func ParseDevice(device string) (string, string, string) {
if device == "" || device[0] == '/' {
return "", "", device
}
parts := strings.SplitN(device, "=", 2)
if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
return "", "", device
}
name := parts[1]
vendor, class := ParseQualifier(parts[0])
if vendor == "" {
return "", "", device
}
return vendor, class, name
}
// ParseQualifier splits a device qualifier into vendor and class.
// The syntax for a device qualifier is
//
// "<vendor>/<class>"
//
// If parsing fails, an empty vendor and the class set to the
// verbatim input is returned.
func ParseQualifier(kind string) (string, string) {
parts := strings.SplitN(kind, "/", 2)
if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
return "", kind
}
return parts[0], parts[1]
}
// ValidateVendorName checks the validity of a vendor name.
// A vendor name may contain the following ASCII characters:
// - upper- and lowercase letters ('A'-'Z', 'a'-'z')
// - digits ('0'-'9')
// - underscore, dash, and dot ('_', '-', and '.')
func ValidateVendorName(vendor string) error {
err := validateVendorOrClassName(vendor)
if err != nil {
err = fmt.Errorf("invalid vendor. %w", err)
}
return err
}
// ValidateClassName checks the validity of class name.
// A class name may contain the following ASCII characters:
// - upper- and lowercase letters ('A'-'Z', 'a'-'z')
// - digits ('0'-'9')
// - underscore, dash, and dot ('_', '-', and '.')
func ValidateClassName(class string) error {
err := validateVendorOrClassName(class)
if err != nil {
err = fmt.Errorf("invalid class. %w", err)
}
return err
}
// validateVendorOrClassName checks the validity of vendor or class name.
// A name may contain the following ASCII characters:
// - upper- and lowercase letters ('A'-'Z', 'a'-'z')
// - digits ('0'-'9')
// - underscore, dash, and dot ('_', '-', and '.')
func validateVendorOrClassName(name string) error {
if name == "" {
return fmt.Errorf("empty name")
}
if !IsLetter(rune(name[0])) {
return fmt.Errorf("%q, should start with letter", name)
}
for _, c := range string(name[1 : len(name)-1]) {
switch {
case IsAlphaNumeric(c):
case c == '_' || c == '-' || c == '.':
default:
return fmt.Errorf("invalid character '%c' in name %q",
c, name)
}
}
if !IsAlphaNumeric(rune(name[len(name)-1])) {
return fmt.Errorf("%q, should end with a letter or digit", name)
}
return nil
}
// ValidateDeviceName checks the validity of a device name.
// A device name may contain the following ASCII characters:
// - upper- and lowercase letters ('A'-'Z', 'a'-'z')
// - digits ('0'-'9')
// - underscore, dash, dot, colon ('_', '-', '.', ':')
func ValidateDeviceName(name string) error {
if name == "" {
return fmt.Errorf("invalid (empty) device name")
}
if !IsAlphaNumeric(rune(name[0])) {
return fmt.Errorf("invalid class %q, should start with a letter or digit", name)
}
if len(name) == 1 {
return nil
}
for _, c := range string(name[1 : len(name)-1]) {
switch {
case IsAlphaNumeric(c):
case c == '_' || c == '-' || c == '.' || c == ':':
default:
return fmt.Errorf("invalid character '%c' in device name %q",
c, name)
}
}
if !IsAlphaNumeric(rune(name[len(name)-1])) {
return fmt.Errorf("invalid name %q, should end with a letter or digit", name)
}
return nil
}
// IsLetter reports whether the rune is a letter.
func IsLetter(c rune) bool {
return ('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z')
}
// IsDigit reports whether the rune is a digit.
func IsDigit(c rune) bool {
return '0' <= c && c <= '9'
}
// IsAlphaNumeric reports whether the rune is a letter or digit.
func IsAlphaNumeric(c rune) bool {
return IsLetter(c) || IsDigit(c)
}

3
vendor/modules.txt vendored
View File

@ -15,6 +15,9 @@ github.com/beorn7/perks/quantile
# github.com/cespare/xxhash/v2 v2.1.2
## explicit; go 1.11
github.com/cespare/xxhash/v2
# github.com/container-orchestrated-devices/container-device-interface v0.5.5-0.20230516140309-1e6752771dc5
## explicit; go 1.17
github.com/container-orchestrated-devices/container-device-interface/pkg/parser
# github.com/containerd/containerd v1.6.21
## explicit; go 1.17
github.com/containerd/containerd/errdefs