Merge pull request #609 from devimc/topic/vendorAgent

vendor: update kata agent
This commit is contained in:
Graham Whaley 2018-08-21 11:10:26 +01:00 committed by GitHub
commit 0c0e17f924
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 537 additions and 16 deletions

8
Gopkg.lock generated
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@ -35,7 +35,7 @@
revision = "3d382e2f5dabe3bae62ceb9ded56bdee847008ee"
[[projects]]
digest = "1:3e0383c8e6689f78621ca3592fe1adfc98c23a8bf354704c514d1e7c36d550d7"
digest = "1:827ed8a74e55981880c4d77f8472d638bceb899188104ba7bf24a9548fd97292"
name = "github.com/containernetworking/cni"
packages = ["pkg/types"]
pruneopts = "NUT"
@ -122,14 +122,14 @@
revision = "eda239928bfa12b214e9c93192d548cccf4e7f1e"
[[projects]]
digest = "1:f2f0d25f32da7843fa4cdc2becb88eea9d1aa9f9c4167431b4c1cd1c3b7fb17c"
digest = "1:55460fbdfca464360cec902b0805126451908aa1a058fe4072b01650ebe768b3"
name = "github.com/kata-containers/agent"
packages = [
"protocols/client",
"protocols/grpc",
]
pruneopts = "NUT"
revision = "e6d26c1bbbaf1c7292b1ee5dfa17ca13159f73b7"
revision = "cd8f37b29332cbc081f00e4186c59944a79574fd"
[[projects]]
digest = "1:04054595e5c5a35d1553a7f3464d18577caf597445d643992998643df56d4afd"
@ -389,7 +389,6 @@
"github.com/clearcontainers/proxy/api",
"github.com/clearcontainers/proxy/client",
"github.com/containerd/cri-containerd/pkg/annotations",
"github.com/containernetworking/cni/pkg/types",
"github.com/containernetworking/plugins/pkg/ns",
"github.com/dlespiau/covertool/pkg/cover",
"github.com/docker/go-units",
@ -410,6 +409,7 @@
"github.com/sirupsen/logrus",
"github.com/sirupsen/logrus/hooks/syslog",
"github.com/stretchr/testify/assert",
"github.com/uber/jaeger-client-go",
"github.com/uber/jaeger-client-go/config",
"github.com/urfave/cli",
"github.com/vishvananda/netlink",

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@ -56,7 +56,7 @@
[[constraint]]
name = "github.com/kata-containers/agent"
revision = "e6d26c1bbbaf1c7292b1ee5dfa17ca13159f73b7"
revision = "cd8f37b29332cbc081f00e4186c59944a79574fd"
[[constraint]]
name = "github.com/containerd/cri-containerd"

202
vendor/github.com/containernetworking/cni/LICENSE generated vendored Normal file
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@ -0,0 +1,202 @@
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@ -0,0 +1,112 @@
// Copyright 2015 CNI 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 types
import (
"encoding"
"fmt"
"reflect"
"strings"
)
// UnmarshallableBool typedef for builtin bool
// because builtin type's methods can't be declared
type UnmarshallableBool bool
// UnmarshalText implements the encoding.TextUnmarshaler interface.
// Returns boolean true if the string is "1" or "[Tt]rue"
// Returns boolean false if the string is "0" or "[Ff]alse"
func (b *UnmarshallableBool) UnmarshalText(data []byte) error {
s := strings.ToLower(string(data))
switch s {
case "1", "true":
*b = true
case "0", "false":
*b = false
default:
return fmt.Errorf("Boolean unmarshal error: invalid input %s", s)
}
return nil
}
// UnmarshallableString typedef for builtin string
type UnmarshallableString string
// UnmarshalText implements the encoding.TextUnmarshaler interface.
// Returns the string
func (s *UnmarshallableString) UnmarshalText(data []byte) error {
*s = UnmarshallableString(data)
return nil
}
// CommonArgs contains the IgnoreUnknown argument
// and must be embedded by all Arg structs
type CommonArgs struct {
IgnoreUnknown UnmarshallableBool `json:"ignoreunknown,omitempty"`
}
// GetKeyField is a helper function to receive Values
// Values that represent a pointer to a struct
func GetKeyField(keyString string, v reflect.Value) reflect.Value {
return v.Elem().FieldByName(keyString)
}
// UnmarshalableArgsError is used to indicate error unmarshalling args
// from the args-string in the form "K=V;K2=V2;..."
type UnmarshalableArgsError struct {
error
}
// LoadArgs parses args from a string in the form "K=V;K2=V2;..."
func LoadArgs(args string, container interface{}) error {
if args == "" {
return nil
}
containerValue := reflect.ValueOf(container)
pairs := strings.Split(args, ";")
unknownArgs := []string{}
for _, pair := range pairs {
kv := strings.Split(pair, "=")
if len(kv) != 2 {
return fmt.Errorf("ARGS: invalid pair %q", pair)
}
keyString := kv[0]
valueString := kv[1]
keyField := GetKeyField(keyString, containerValue)
if !keyField.IsValid() {
unknownArgs = append(unknownArgs, pair)
continue
}
keyFieldIface := keyField.Addr().Interface()
u, ok := keyFieldIface.(encoding.TextUnmarshaler)
if !ok {
return UnmarshalableArgsError{fmt.Errorf(
"ARGS: cannot unmarshal into field '%s' - type '%s' does not implement encoding.TextUnmarshaler",
keyString, reflect.TypeOf(keyFieldIface))}
}
err := u.UnmarshalText([]byte(valueString))
if err != nil {
return fmt.Errorf("ARGS: error parsing value of pair %q: %v)", pair, err)
}
}
isIgnoreUnknown := GetKeyField("IgnoreUnknown", containerValue).Bool()
if len(unknownArgs) > 0 && !isIgnoreUnknown {
return fmt.Errorf("ARGS: unknown args %q", unknownArgs)
}
return nil
}

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@ -0,0 +1,189 @@
// Copyright 2015 CNI 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 types
import (
"encoding/json"
"errors"
"fmt"
"net"
"os"
)
// like net.IPNet but adds JSON marshalling and unmarshalling
type IPNet net.IPNet
// ParseCIDR takes a string like "10.2.3.1/24" and
// return IPNet with "10.2.3.1" and /24 mask
func ParseCIDR(s string) (*net.IPNet, error) {
ip, ipn, err := net.ParseCIDR(s)
if err != nil {
return nil, err
}
ipn.IP = ip
return ipn, nil
}
func (n IPNet) MarshalJSON() ([]byte, error) {
return json.Marshal((*net.IPNet)(&n).String())
}
func (n *IPNet) UnmarshalJSON(data []byte) error {
var s string
if err := json.Unmarshal(data, &s); err != nil {
return err
}
tmp, err := ParseCIDR(s)
if err != nil {
return err
}
*n = IPNet(*tmp)
return nil
}
// NetConf describes a network.
type NetConf struct {
CNIVersion string `json:"cniVersion,omitempty"`
Name string `json:"name,omitempty"`
Type string `json:"type,omitempty"`
Capabilities map[string]bool `json:"capabilities,omitempty"`
IPAM struct {
Type string `json:"type,omitempty"`
} `json:"ipam,omitempty"`
DNS DNS `json:"dns"`
}
// NetConfList describes an ordered list of networks.
type NetConfList struct {
CNIVersion string `json:"cniVersion,omitempty"`
Name string `json:"name,omitempty"`
Plugins []*NetConf `json:"plugins,omitempty"`
}
type ResultFactoryFunc func([]byte) (Result, error)
// Result is an interface that provides the result of plugin execution
type Result interface {
// The highest CNI specification result verison the result supports
// without having to convert
Version() string
// Returns the result converted into the requested CNI specification
// result version, or an error if conversion failed
GetAsVersion(version string) (Result, error)
// Prints the result in JSON format to stdout
Print() error
// Returns a JSON string representation of the result
String() string
}
func PrintResult(result Result, version string) error {
newResult, err := result.GetAsVersion(version)
if err != nil {
return err
}
return newResult.Print()
}
// DNS contains values interesting for DNS resolvers
type DNS struct {
Nameservers []string `json:"nameservers,omitempty"`
Domain string `json:"domain,omitempty"`
Search []string `json:"search,omitempty"`
Options []string `json:"options,omitempty"`
}
type Route struct {
Dst net.IPNet
GW net.IP
}
func (r *Route) String() string {
return fmt.Sprintf("%+v", *r)
}
// Well known error codes
// see https://github.com/containernetworking/cni/blob/master/SPEC.md#well-known-error-codes
const (
ErrUnknown uint = iota // 0
ErrIncompatibleCNIVersion // 1
ErrUnsupportedField // 2
)
type Error struct {
Code uint `json:"code"`
Msg string `json:"msg"`
Details string `json:"details,omitempty"`
}
func (e *Error) Error() string {
details := ""
if e.Details != "" {
details = fmt.Sprintf("; %v", e.Details)
}
return fmt.Sprintf("%v%v", e.Msg, details)
}
func (e *Error) Print() error {
return prettyPrint(e)
}
// net.IPNet is not JSON (un)marshallable so this duality is needed
// for our custom IPNet type
// JSON (un)marshallable types
type route struct {
Dst IPNet `json:"dst"`
GW net.IP `json:"gw,omitempty"`
}
func (r *Route) UnmarshalJSON(data []byte) error {
rt := route{}
if err := json.Unmarshal(data, &rt); err != nil {
return err
}
r.Dst = net.IPNet(rt.Dst)
r.GW = rt.GW
return nil
}
func (r *Route) MarshalJSON() ([]byte, error) {
rt := route{
Dst: IPNet(r.Dst),
GW: r.GW,
}
return json.Marshal(rt)
}
func prettyPrint(obj interface{}) error {
data, err := json.MarshalIndent(obj, "", " ")
if err != nil {
return err
}
_, err = os.Stdout.Write(data)
return err
}
// NotImplementedError is used to indicate that a method is not implemented for the given platform
var NotImplementedError = errors.New("Not Implemented")

View File

@ -28,7 +28,7 @@ const (
vsockSocketScheme = "vsock"
)
var defaultDialTimeout = 5 * time.Second
var defaultDialTimeout = 15 * time.Second
// AgentClient is an agent gRPC client connection wrapper for agentgrpc.AgentServiceClient
type AgentClient struct {
@ -179,9 +179,13 @@ func agentDialer(addr *url.URL, enableYamux bool) dialer {
}
}
// unix addr are parsed by grpc
func unixDialer(sock string, timeout time.Duration) (net.Conn, error) {
return net.DialTimeout("unix", sock, timeout)
dialFunc := func() (net.Conn, error) {
return net.DialTimeout("unix", sock, timeout)
}
timeoutErr := grpcStatus.Errorf(codes.DeadlineExceeded, "timed out connecting to unix socket %s", sock)
return commonDialer(timeout, dialFunc, timeoutErr)
}
func parseGrpcVsockAddr(sock string) (uint32, uint32, error) {
@ -205,12 +209,12 @@ func parseGrpcVsockAddr(sock string) (uint32, uint32, error) {
return uint32(cid), uint32(port), nil
}
func vsockDialer(sock string, timeout time.Duration) (net.Conn, error) {
cid, port, err := parseGrpcVsockAddr(sock)
if err != nil {
return nil, err
}
// This would bypass the grpc dialer backoff strategy and handle dial timeout
// internally. Because we do not have a large number of concurrent dialers,
// it is not reasonable to have such aggressive backoffs which would kill kata
// containers boot up speed. For more information, see
// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md
func commonDialer(timeout time.Duration, dialFunc func() (net.Conn, error), timeoutErrMsg error) (net.Conn, error) {
t := time.NewTimer(timeout)
cancel := make(chan bool)
ch := make(chan net.Conn)
@ -223,7 +227,7 @@ func vsockDialer(sock string, timeout time.Duration) (net.Conn, error) {
default:
}
conn, err := vsock.Dial(cid, port)
conn, err := dialFunc()
if err == nil {
// Send conn back iff timer is not fired
// Otherwise there might be no one left reading it
@ -239,7 +243,6 @@ func vsockDialer(sock string, timeout time.Duration) (net.Conn, error) {
var conn net.Conn
var ok bool
timeoutErrMsg := grpcStatus.Errorf(codes.DeadlineExceeded, "timed out connecting to vsock %d:%d", cid, port)
select {
case conn, ok = <-ch:
if !ok {
@ -249,3 +252,18 @@ func vsockDialer(sock string, timeout time.Duration) (net.Conn, error) {
return conn, nil
}
func vsockDialer(sock string, timeout time.Duration) (net.Conn, error) {
cid, port, err := parseGrpcVsockAddr(sock)
if err != nil {
return nil, err
}
dialFunc := func() (net.Conn, error) {
return vsock.Dial(cid, port)
}
timeoutErr := grpcStatus.Errorf(codes.DeadlineExceeded, "timed out connecting to vsock %d:%d", cid, port)
return commonDialer(timeout, dialFunc, timeoutErr)
}