new driver: kubernetes

Tested with `kind` and GKE.

Note: "nodes" shown in `docker buildx ls` are unrelated to Kubernetes "nodes".
Probably buildx should come up with an alternative term.

Usage:

  $ kind create cluster
  $ export KUBECONFIG="$(kind get kubeconfig-path --name="kind")"

  $ docker buildx create --driver kubernetes --driver-opt replicas=3 --use
  $ docker buildx build -t foo --load .

`--load` loads the image into the local Docker.

Driver opts:

  - `image=IMAGE` - Sets the container image to be used for running buildkit.
  - `namespace=NS` - Sets the Kubernetes namespace. Defaults to the current namespace.
  - `replicas=N` - Sets the number of `Pod` replicas. Defaults to 1.
  - `rootless=(true|false)` - Run the container as a non-root user without `securityContext.privileged`. Defaults to false.
  - `loadbalance=(sticky|random)` - Load-balancing strategy. If set to "sticky", the pod is chosen using the hash of the context path. Defaults to "sticky"

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
This commit is contained in:
Akihiro Suda
2019-10-21 15:02:37 +09:00
parent f5c2673878
commit 6b65b0c982
657 changed files with 258673 additions and 370 deletions

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# Extensions
This directory contains support code for building Gnostic extensions and associated examples.
Extensions are used to compile vendor or specification extensions into protocol buffer structures.

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// Code generated by protoc-gen-go. DO NOT EDIT.
// source: extensions/extension.proto
package openapiextension_v1
import (
fmt "fmt"
proto "github.com/golang/protobuf/proto"
any "github.com/golang/protobuf/ptypes/any"
math "math"
)
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
// The version number of OpenAPI compiler.
type Version struct {
Major int32 `protobuf:"varint,1,opt,name=major,proto3" json:"major,omitempty"`
Minor int32 `protobuf:"varint,2,opt,name=minor,proto3" json:"minor,omitempty"`
Patch int32 `protobuf:"varint,3,opt,name=patch,proto3" json:"patch,omitempty"`
// A suffix for alpha, beta or rc release, e.g., "alpha-1", "rc2". It should
// be empty for mainline stable releases.
Suffix string `protobuf:"bytes,4,opt,name=suffix,proto3" json:"suffix,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Version) Reset() { *m = Version{} }
func (m *Version) String() string { return proto.CompactTextString(m) }
func (*Version) ProtoMessage() {}
func (*Version) Descriptor() ([]byte, []int) {
return fileDescriptor_661e47e790f76671, []int{0}
}
func (m *Version) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Version.Unmarshal(m, b)
}
func (m *Version) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Version.Marshal(b, m, deterministic)
}
func (m *Version) XXX_Merge(src proto.Message) {
xxx_messageInfo_Version.Merge(m, src)
}
func (m *Version) XXX_Size() int {
return xxx_messageInfo_Version.Size(m)
}
func (m *Version) XXX_DiscardUnknown() {
xxx_messageInfo_Version.DiscardUnknown(m)
}
var xxx_messageInfo_Version proto.InternalMessageInfo
func (m *Version) GetMajor() int32 {
if m != nil {
return m.Major
}
return 0
}
func (m *Version) GetMinor() int32 {
if m != nil {
return m.Minor
}
return 0
}
func (m *Version) GetPatch() int32 {
if m != nil {
return m.Patch
}
return 0
}
func (m *Version) GetSuffix() string {
if m != nil {
return m.Suffix
}
return ""
}
// An encoded Request is written to the ExtensionHandler's stdin.
type ExtensionHandlerRequest struct {
// The OpenAPI descriptions that were explicitly listed on the command line.
// The specifications will appear in the order they are specified to gnostic.
Wrapper *Wrapper `protobuf:"bytes,1,opt,name=wrapper,proto3" json:"wrapper,omitempty"`
// The version number of openapi compiler.
CompilerVersion *Version `protobuf:"bytes,3,opt,name=compiler_version,json=compilerVersion,proto3" json:"compiler_version,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ExtensionHandlerRequest) Reset() { *m = ExtensionHandlerRequest{} }
func (m *ExtensionHandlerRequest) String() string { return proto.CompactTextString(m) }
func (*ExtensionHandlerRequest) ProtoMessage() {}
func (*ExtensionHandlerRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_661e47e790f76671, []int{1}
}
func (m *ExtensionHandlerRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ExtensionHandlerRequest.Unmarshal(m, b)
}
func (m *ExtensionHandlerRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ExtensionHandlerRequest.Marshal(b, m, deterministic)
}
func (m *ExtensionHandlerRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_ExtensionHandlerRequest.Merge(m, src)
}
func (m *ExtensionHandlerRequest) XXX_Size() int {
return xxx_messageInfo_ExtensionHandlerRequest.Size(m)
}
func (m *ExtensionHandlerRequest) XXX_DiscardUnknown() {
xxx_messageInfo_ExtensionHandlerRequest.DiscardUnknown(m)
}
var xxx_messageInfo_ExtensionHandlerRequest proto.InternalMessageInfo
func (m *ExtensionHandlerRequest) GetWrapper() *Wrapper {
if m != nil {
return m.Wrapper
}
return nil
}
func (m *ExtensionHandlerRequest) GetCompilerVersion() *Version {
if m != nil {
return m.CompilerVersion
}
return nil
}
// The extensions writes an encoded ExtensionHandlerResponse to stdout.
type ExtensionHandlerResponse struct {
// true if the extension is handled by the extension handler; false otherwise
Handled bool `protobuf:"varint,1,opt,name=handled,proto3" json:"handled,omitempty"`
// Error message. If non-empty, the extension handling failed.
// The extension handler process should exit with status code zero
// even if it reports an error in this way.
//
// This should be used to indicate errors which prevent the extension from
// operating as intended. Errors which indicate a problem in gnostic
// itself -- such as the input Document being unparseable -- should be
// reported by writing a message to stderr and exiting with a non-zero
// status code.
Error []string `protobuf:"bytes,2,rep,name=error,proto3" json:"error,omitempty"`
// text output
Value *any.Any `protobuf:"bytes,3,opt,name=value,proto3" json:"value,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ExtensionHandlerResponse) Reset() { *m = ExtensionHandlerResponse{} }
func (m *ExtensionHandlerResponse) String() string { return proto.CompactTextString(m) }
func (*ExtensionHandlerResponse) ProtoMessage() {}
func (*ExtensionHandlerResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_661e47e790f76671, []int{2}
}
func (m *ExtensionHandlerResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ExtensionHandlerResponse.Unmarshal(m, b)
}
func (m *ExtensionHandlerResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ExtensionHandlerResponse.Marshal(b, m, deterministic)
}
func (m *ExtensionHandlerResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_ExtensionHandlerResponse.Merge(m, src)
}
func (m *ExtensionHandlerResponse) XXX_Size() int {
return xxx_messageInfo_ExtensionHandlerResponse.Size(m)
}
func (m *ExtensionHandlerResponse) XXX_DiscardUnknown() {
xxx_messageInfo_ExtensionHandlerResponse.DiscardUnknown(m)
}
var xxx_messageInfo_ExtensionHandlerResponse proto.InternalMessageInfo
func (m *ExtensionHandlerResponse) GetHandled() bool {
if m != nil {
return m.Handled
}
return false
}
func (m *ExtensionHandlerResponse) GetError() []string {
if m != nil {
return m.Error
}
return nil
}
func (m *ExtensionHandlerResponse) GetValue() *any.Any {
if m != nil {
return m.Value
}
return nil
}
type Wrapper struct {
// version of the OpenAPI specification in which this extension was written.
Version string `protobuf:"bytes,1,opt,name=version,proto3" json:"version,omitempty"`
// Name of the extension
ExtensionName string `protobuf:"bytes,2,opt,name=extension_name,json=extensionName,proto3" json:"extension_name,omitempty"`
// Must be a valid yaml for the proto
Yaml string `protobuf:"bytes,3,opt,name=yaml,proto3" json:"yaml,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Wrapper) Reset() { *m = Wrapper{} }
func (m *Wrapper) String() string { return proto.CompactTextString(m) }
func (*Wrapper) ProtoMessage() {}
func (*Wrapper) Descriptor() ([]byte, []int) {
return fileDescriptor_661e47e790f76671, []int{3}
}
func (m *Wrapper) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Wrapper.Unmarshal(m, b)
}
func (m *Wrapper) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Wrapper.Marshal(b, m, deterministic)
}
func (m *Wrapper) XXX_Merge(src proto.Message) {
xxx_messageInfo_Wrapper.Merge(m, src)
}
func (m *Wrapper) XXX_Size() int {
return xxx_messageInfo_Wrapper.Size(m)
}
func (m *Wrapper) XXX_DiscardUnknown() {
xxx_messageInfo_Wrapper.DiscardUnknown(m)
}
var xxx_messageInfo_Wrapper proto.InternalMessageInfo
func (m *Wrapper) GetVersion() string {
if m != nil {
return m.Version
}
return ""
}
func (m *Wrapper) GetExtensionName() string {
if m != nil {
return m.ExtensionName
}
return ""
}
func (m *Wrapper) GetYaml() string {
if m != nil {
return m.Yaml
}
return ""
}
func init() {
proto.RegisterType((*Version)(nil), "openapiextension.v1.Version")
proto.RegisterType((*ExtensionHandlerRequest)(nil), "openapiextension.v1.ExtensionHandlerRequest")
proto.RegisterType((*ExtensionHandlerResponse)(nil), "openapiextension.v1.ExtensionHandlerResponse")
proto.RegisterType((*Wrapper)(nil), "openapiextension.v1.Wrapper")
}
func init() { proto.RegisterFile("extensions/extension.proto", fileDescriptor_661e47e790f76671) }
var fileDescriptor_661e47e790f76671 = []byte{
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}

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// Copyright 2017 Google Inc. All Rights Reserved.
//
// 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.
syntax = "proto3";
import "google/protobuf/any.proto";
package openapiextension.v1;
// This option lets the proto compiler generate Java code inside the package
// name (see below) instead of inside an outer class. It creates a simpler
// developer experience by reducing one-level of name nesting and be
// consistent with most programming languages that don't support outer classes.
option java_multiple_files = true;
// The Java outer classname should be the filename in UpperCamelCase. This
// class is only used to hold proto descriptor, so developers don't need to
// work with it directly.
option java_outer_classname = "OpenAPIExtensionV1";
// The Java package name must be proto package name with proper prefix.
option java_package = "org.gnostic.v1";
// A reasonable prefix for the Objective-C symbols generated from the package.
// It should at a minimum be 3 characters long, all uppercase, and convention
// is to use an abbreviation of the package name. Something short, but
// hopefully unique enough to not conflict with things that may come along in
// the future. 'GPB' is reserved for the protocol buffer implementation itself.
//
option objc_class_prefix = "OAE"; // "OpenAPI Extension"
// The version number of OpenAPI compiler.
message Version {
int32 major = 1;
int32 minor = 2;
int32 patch = 3;
// A suffix for alpha, beta or rc release, e.g., "alpha-1", "rc2". It should
// be empty for mainline stable releases.
string suffix = 4;
}
// An encoded Request is written to the ExtensionHandler's stdin.
message ExtensionHandlerRequest {
// The OpenAPI descriptions that were explicitly listed on the command line.
// The specifications will appear in the order they are specified to gnostic.
Wrapper wrapper = 1;
// The version number of openapi compiler.
Version compiler_version = 3;
}
// The extensions writes an encoded ExtensionHandlerResponse to stdout.
message ExtensionHandlerResponse {
// true if the extension is handled by the extension handler; false otherwise
bool handled = 1;
// Error message. If non-empty, the extension handling failed.
// The extension handler process should exit with status code zero
// even if it reports an error in this way.
//
// This should be used to indicate errors which prevent the extension from
// operating as intended. Errors which indicate a problem in gnostic
// itself -- such as the input Document being unparseable -- should be
// reported by writing a message to stderr and exiting with a non-zero
// status code.
repeated string error = 2;
// text output
google.protobuf.Any value = 3;
}
message Wrapper {
// version of the OpenAPI specification in which this extension was written.
string version = 1;
// Name of the extension
string extension_name = 2;
// Must be a valid yaml for the proto
string yaml = 3;
}

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// Copyright 2017 Google Inc. All Rights Reserved.
//
// 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 openapiextension_v1
import (
"fmt"
"io/ioutil"
"os"
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/ptypes"
)
type documentHandler func(version string, extensionName string, document string)
type extensionHandler func(name string, yamlInput string) (bool, proto.Message, error)
func forInputYamlFromOpenapic(handler documentHandler) {
data, err := ioutil.ReadAll(os.Stdin)
if err != nil {
fmt.Println("File error:", err.Error())
os.Exit(1)
}
if len(data) == 0 {
fmt.Println("No input data.")
os.Exit(1)
}
request := &ExtensionHandlerRequest{}
err = proto.Unmarshal(data, request)
if err != nil {
fmt.Println("Input error:", err.Error())
os.Exit(1)
}
handler(request.Wrapper.Version, request.Wrapper.ExtensionName, request.Wrapper.Yaml)
}
// ProcessExtension calles the handler for a specified extension.
func ProcessExtension(handleExtension extensionHandler) {
response := &ExtensionHandlerResponse{}
forInputYamlFromOpenapic(
func(version string, extensionName string, yamlInput string) {
var newObject proto.Message
var err error
handled, newObject, err := handleExtension(extensionName, yamlInput)
if !handled {
responseBytes, _ := proto.Marshal(response)
os.Stdout.Write(responseBytes)
os.Exit(0)
}
// If we reach here, then the extension is handled
response.Handled = true
if err != nil {
response.Error = append(response.Error, err.Error())
responseBytes, _ := proto.Marshal(response)
os.Stdout.Write(responseBytes)
os.Exit(0)
}
response.Value, err = ptypes.MarshalAny(newObject)
if err != nil {
response.Error = append(response.Error, err.Error())
responseBytes, _ := proto.Marshal(response)
os.Stdout.Write(responseBytes)
os.Exit(0)
}
})
responseBytes, _ := proto.Marshal(response)
os.Stdout.Write(responseBytes)
}