Akihiro Suda 6b65b0c982 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>
2019-11-21 10:30:39 +09:00

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2.4 KiB
Go

// 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)
}